CN103580774B - A kind of method and device of control signaling transmission - Google Patents
A kind of method and device of control signaling transmission Download PDFInfo
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- CN103580774B CN103580774B CN201210250879.6A CN201210250879A CN103580774B CN 103580774 B CN103580774 B CN 103580774B CN 201210250879 A CN201210250879 A CN 201210250879A CN 103580774 B CN103580774 B CN 103580774B
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Abstract
The present invention provides a kind of method and device of control signaling transmission, this method comprises: being grouped code coding to signaling bit；Bit after block code coding is modulated；Modulated symbol repeated and sorted by specified rule；Symbol after repeating and sorting is transmitted.It can make signal that there is better uniformity through the invention, it will be when digital signal be sent into analog circuit, since the influence that control signaling uniformity difference causes originator direct current shake abnormal is preferably minimized.
Description
Technical field
The invention mainly relates to microwave communication transmission fields, more particularly to the method and dress of a kind of transmission of control signaling
It sets.
Background technique
Fig. 1 describes the system diagram of classical originator zero intermediate frequency scheme in communication and Transmission system.Under normal circumstances, the program
Output signal part of the meeting in analog circuit is mixed into direct current.The reason of generating direct current mainly analog frequency mixing process local oscillator is let out
Dew, finds by test of many times, and the randomness and uniformity for being sent into the baseband digital signal of DAC (digital analog converter) will affect this
Locate the variation of direct current.Signal is more uniform, more random, and direct current is more constant.Therefore, it is necessary to guarantee to be sent into the random of analog circuit signal
Property and uniformity.
The baseband digital signal before DAC is sent into Fig. 1, corresponding physical frame formats are as shown in Figure 2.Wherein, preamble word
Section is used to synchronize, and signaling field transmission control and system indicate information, and data field is business to be passed, and pilot field is used
To do training.
Traditional control signalling includes following process:
Step 1: code coding is grouped to signaling bit.
Step 2: repeated encoding is carried out to the bit after block code coding.
Step 3: the data after repeated encoding are scrambled.
Step 4: the data after scrambling are modulated.
Step 5: modulated symbol is transmitted.
General control signaling is n-bit information, and usual n is a lesser value (classical value is between 8~20).By
Bit after k re-transmission is k*n, and k is generally selected 3~5 times.Since k*n is smaller, in the transmission of Traditional control signaling the
3 steps carry out the difficult point that scrambling is signalling to the data after repeated encoding.Being difficult one group of scrambling code of selection makes 2n*kGroup data scrambling
Symbol after re-modulation all has high uniform under various conditions.Symbol uniformity is not high after this scrambling modulation, actually logical
Originator direct current shake can be shown in letter and transmission process.For macro base station system, since order of modulation is lower, this magnitude hair
Hold direct current shake may be to systematic influence and little；But for wired or failed transmission system, when due to using high order modulation,
This magnitude originator direct current shake can have large effect to system.
In order to eliminate due to caused by uniformity the influence of originator direct current shake, need using multiple groups scrambling code to adding
It disturbs.Firstly, doing so waste of resource；Secondly as being scrambled using multiple groups scrambling code, transmitting terminal also needs to notify receiving end
Selected is which group scrambling code, the complexity for occupying overhead and control process being become.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and devices of control signaling transmission, so that signal has
Better uniformity.
In order to solve the above-mentioned technical problems, the present invention provides a kind of methods of control signaling transmission, comprising:
Code coding is grouped to signaling bit；
Bit after block code coding is modulated；
Modulated symbol repeated and sorted by specified rule；
Symbol after repeating and sorting is transmitted.
Further, the above method also has the characteristics that following: described carry out by specified rule to modulated symbol
It repeats twice and sequence includes:
To y1(i) it carries out obtaining y after antithesis repeats2(i), y1It (i) is modulated symbol, wherein i=1,2 ..., m/s, m
For the number of bits after the block encoding, s is order of modulation；
Modulated symbol is ranked up according to following z sequence rules:
Further, the above method also has the characteristics that following: described carry out by specified rule to modulated symbol
2*k repetition and sequence include:
To y1(i) it carries out obtaining y after antithesis repeats2(i), y1It (i) is modulated symbol, wherein i=1,2 ..., m/s, m
For the number of bits after the block encoding, s is order of modulation；
Modulated symbol is ranked up according to following z sequence rules:
To solve the above-mentioned problems, the present invention also provides a kind of devices of control signaling transmission, comprising:
First module, for being grouped code coding to signaling bit；
Second module is modulated for the bit after encoding to block code；
Third module, for repeated and sorted by specified rule to modulated symbol；
4th module, for being transmitted to the symbol after repeating and sorting.
Further, above-mentioned apparatus also has the characteristics that following: the third module includes:
First unit, for y1(i) it carries out obtaining y after antithesis repeats2(i), y1It (i) is modulated symbol, wherein i=
1,2 ..., m/s, m are the number of bits after the block encoding, and s is order of modulation；
Second unit, for being ranked up according to following z sequence rules to modulated symbol:
Further, above-mentioned apparatus also has the characteristics that following: the third module includes:
Third unit, for y1(i) it carries out obtaining y after antithesis repeats2(i), y1It (i) is modulated symbol, wherein i=
1,2 ..., m/s, m are the number of bits after the block encoding, and s is order of modulation；
Unit the 4th, for being ranked up according to following z sequence rules to modulated symbol:
To sum up, the present invention provides a kind of method and device of control signaling transmission, so that signal has better uniformity,
Will be dropped when digital signal is sent into analog circuit since control signaling uniformity difference causes originator direct current to shake abnormal influence
To minimum.
Detailed description of the invention
Fig. 1 is the schematic diagram of the originator Transmission system of the prior art；
Fig. 2 is the schematic diagram of classical Transmission system physical frame formats；
Fig. 3 is the flow chart for the method that the control signaling of the embodiment of the present invention is transmitted；
Fig. 4 is the duplicate schematic diagram of antithesis of the embodiment of the present invention；
Fig. 5 is the schematic diagram for the device that the control signaling of the embodiment of the present invention is transmitted.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Fig. 3 is the flow chart for the method that the control signaling of the embodiment of the present invention is transmitted, as shown in figure 3, including following step
It is rapid:
Step 11: code coding is grouped to signaling bit.
Step 12: the bit after block code coding is modulated.
Step 13: modulated symbol repeated and sorted by certain rule.
Step 14: the symbol after being repeated and sorted by certain rule is transmitted.
The method of the embodiment of the present invention is compared with Traditional control signalling process, benefit obtained is as follows:
1. passing through step 13 of the embodiment of the present invention " repeated and sorted by certain rule to modulated symbol "
Processing compare by conventional method step 3 " data after repeated encoding are scrambled " handle, signal have preferably uniformly
Property, i.e., the present invention can have better performance.
2. scrambled processing is omitted in the embodiment of the present invention under the premise of providing better performance, system money is saved
Source；Simultaneously because reducing control, system power dissipation can be reduced.
3. the gain of conventional method bit-level repeated encoding, the method for the embodiment of the present invention by modulated symbol into
Row repeats, available same gain.That is, the method for the embodiment of the present invention can't lose the re-transmission of conventional method bit-level
Coding gain.
Method of the invention is described in detail with two specific embodiments below.
Scheme once or twice repeats transmission sort method:
It is m bit after block code encodes, then be modulated if system signaling bit is n.Modulated symbol note
For y1(i), wherein i=1,2 ..., m/s., s are order of modulation.
Enable y2(i)=- y1(i), y2For raw modulation symbols y1Antithesis repeat.
To y1(i), y2(i) it is ranked up, ordering rule is as follows:
Z (1)=y1(1)
Z (2)=y2(1)
Symbol sebolic addressing z is the signal finally transmitted on the link, and uniformity can guarantee that continuous two symbol mean values are
Zero.
Scheme two, repeatedly (such as 2*k times) repeat transmission sort method:
1, code coding is grouped to n-bit signaling, generates m bit, is denoted as x (i), wherein i=1,2 ..., m.
2, x (i) is modulated, modulated symbol is y1(i), wherein i=1,2 ..., m/s, s are order of modulation.
3, to y1(i) 2*k repetition is carried out, to obtain diversity gain:
Enable y2(i)=- y1(i), y2For raw modulation symbols y1Antithesis repeat.
The 2*j-1 times is that the symbol to be passed is y1(i),
The 2*j times is that the symbol to be passed is y2(i), wherein j=1,2 ..., k,
It designs in this way, 2*j-1 and the 2*j times antithesis in constellation point, that is, about origin symmetry, such as Fig. 4 institute
Show.
4, the signal after repetition is rearranged:
Z (1)=y1(1)
Z (2)=y2(1)
Z (2*k-1)=y1(1)
Z (2*k)=y2(1)
Symbol sebolic addressing z is the signal finally transmitted on the link, and uniformity can guarantee continuous 2*k signaling symbols
Mean value is that zero, N is random natural number.Thus the control signaling part signal of the signal of strict guarantee analog circuit input is equal
Even property.
Fig. 5 is the schematic diagram for the device that the control signaling of the embodiment of the present invention is transmitted, as shown in figure 5, the dress of the present embodiment
It sets and includes:
First module, for being grouped code coding to signaling bit；
Second module is modulated for the bit after encoding to block code；
Third module, for repeated and sorted by specified rule to modulated symbol；
4th module, for being transmitted to the symbol after repeating and sorting.
In a preferred embodiment, the third module includes:
First unit, for y1(i) it carries out obtaining y after antithesis repeats2(i), y1It (i) is modulated symbol, wherein i=
1,2 ..., m/s, m are the number of bits after the block encoding, and s is order of modulation；
Second unit, for being ranked up according to following z sequence rules to modulated symbol:
In a preferred embodiment, the third module includes:
Third unit, for y1(i) it carries out obtaining y after antithesis repeats2(i), y1It (i) is modulated symbol, wherein i=
1,2 ..., m/s, m are the number of bits after the block encoding, and s is order of modulation；
Unit the 4th, for being ranked up according to following z sequence rules to modulated symbol:
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware is completed, and described program can store in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, one or more integrated circuits can be used also to realize in all or part of the steps of above-described embodiment.Accordingly
Ground, each module/unit in above-described embodiment can take the form of hardware realization, can also use the shape of software function module
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
The above is only a preferred embodiment of the present invention, and certainly, the invention may also have other embodiments, without departing substantially from this
In the case where spirit and its essence, those skilled in the art make various corresponding changes in accordance with the present invention
And deformation, but these corresponding changes and modifications all should fall within the scope of protection of the appended claims of the present invention.
Claims (6)
1. a kind of method of control signaling transmission, comprising:
Code coding is grouped to signaling bit；
Bit after block code coding is modulated；
Modulated symbol repeat and sort twice or 2*k repetition and sequence, wherein k be greater than 1 arbitrarily just
Integer；
Symbol after repeating and sorting is transmitted, wherein the symbol after the continuous two or 2*k repetitions and sequence
Mean value be zero.
2. the method as described in claim 1, it is characterised in that: it is described to modulated symbol carry out twice repeat and ranked package
It includes:
Make y2(i) it is equal to-y1(i), wherein y2For raw modulation symbols y1Antithesis repeat, y1It (i) is modulated symbol,
In, i=1,2 ..., m/s, m are the number of bits after block code coding, and s is order of modulation；
Modulated symbol is ranked up according to following z sequence rules:
Z (2*i-1)=y1(i),
Z (2*i)=y2(i)。
3. the method as described in claim 1, it is characterised in that: described to carry out 2*k repetition and sequence to modulated symbol
Include:
Make y2(i) it is equal to-y1(i), wherein y2For raw modulation symbols y1Antithesis repeat, y1It (i) is modulated symbol,
In, i=1,2 ..., m/s, m are the number of bits after block code coding, and s is order of modulation；
Modulated symbol is ranked up according to following z sequence rules:
Z (2*k* (i-1)+2j-1)=y1(i),
Z (2*k* (i-1)+2j)=y2(i), wherein j=1,2 ..., k.
4. a kind of device of control signaling transmission, comprising:
First module, for being grouped code coding to signaling bit；
Second module is modulated for the bit after encoding to block code；
Third module, for repeat and sort twice to modulated symbol or 2*k repetition and sequence, wherein k is
Any positive integer greater than 1；
4th module, for repeat and sequence after symbol transmit, wherein continuous two or 2*k repetitions and
The mean value of symbol after sequence is zero.
5. device as claimed in claim 4, it is characterised in that: the third module includes:
First unit, for making y2(i) it is equal to-y1(i), wherein y2For raw modulation symbols y1Antithesis repeat, y1It (i) is tune
Symbol after system, wherein i=1,2 ..., m/s, m are the number of bits after block code coding, and s is order of modulation；
Second unit, for being ranked up according to following z sequence rules to modulated symbol:
Z (2*i-1)=y1(i),
Z (2*i)=y2(i)。
6. device as claimed in claim 4, it is characterised in that: the third module includes:
Third unit, for making y2(i) it is equal to-y1(i), wherein y2For raw modulation symbols y1Antithesis repeat, y1It (i) is tune
Symbol after system, wherein i=1,2 ..., m/s, m are the number of bits after block code coding, and s is order of modulation；
Unit the 4th, for being ranked up according to following z sequence rules to modulated symbol:
Z (2*k* (i-1)+2j-1)=y1(i),
Z (2*k* (i-1)+2j)=y2(i), wherein j=1,2 ..., k.
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| CN101022307A (en) * | 2006-02-15 | 2007-08-22 | 富士通株式会社 | Frequency-division multiplexing transceiver apparatus and method |
| CN101123439A (en) * | 2007-07-10 | 2008-02-13 | 华为技术有限公司 | A coding modulation and decoding method and device for grid coding and modulation code |
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| CN1305220C (en) * | 2001-07-09 | 2007-03-14 | 希捷科技有限公司 | Methoa and apparatus for suppressing low frequency content in digital data |
| CN1694447A (en) * | 2004-05-06 | 2005-11-09 | 叶建国 | Multi-carrier digital signal coding modulation device and method |
| RU2490811C2 (en) * | 2008-09-12 | 2013-08-20 | Квэлкомм Инкорпорейтед | Method and apparatus for signalling to mobile device which set of training sequence codes to use for communication link |
| CN101764617B (en) * | 2009-12-22 | 2012-05-30 | 清华大学 | Encoding method of 9B/10B code |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022307A (en) * | 2006-02-15 | 2007-08-22 | 富士通株式会社 | Frequency-division multiplexing transceiver apparatus and method |
| CN101123439A (en) * | 2007-07-10 | 2008-02-13 | 华为技术有限公司 | A coding modulation and decoding method and device for grid coding and modulation code |
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Effective date of registration: 20221213 Address after: 518055 Zhongxing Industrial Park, Liuxian Avenue, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: SANECHIPS TECHNOLOGY Co.,Ltd. Address before: 518057 Ministry of justice, Zhongxing building, South Science and technology road, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Patentee before: ZTE Corp. Patentee before: SANECHIPS TECHNOLOGY Co.,Ltd. |