CN103532659B - A kind of method and device for determining encoding scheme code book - Google Patents
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Abstract
The invention discloses a kind of method and device for determining encoding scheme code book, after data receiver receives coding modulation data, frame bit data steathily is parsed therefrom, it is determined that frame bit data degree of association respectively with each group encoding scheme code book for pre-saving steathily, the one group of degree of association with frame bit data steathily maximum encoding scheme code book is defined as into the corresponding code book of encoding scheme that coding modulation data adopted.The technical scheme directly will be parsed from coding modulation data compared with frame bit data is defined as the mode of encoding scheme code book steathily with prior art, further according to should steal frame bit data select from each group encoding scheme code book for pre-saving with this steal the maximally related encoding scheme code book of frame bit data, and directly using the encoding scheme code book selected as the corresponding encoding scheme code book of the coded system of the coding modulation data, so as to improve the accuracy of the encoding scheme code book that data receiver is determined.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of method and device for determining encoding scheme code book.
Background technology
GSM（Global Systems for Mobile communications, global system for mobile communications）As
Secondary digital mobile cellular communication system, in worldwide has been obtained for being widely applied.But with mobile communication skill
The development of art and the variation of business, user are continuously increased to the demand of data service.In order to meet user's request simultaneously further
Expand the capacity of gsm system, it is necessary to using more advanced communication and signal processing technology.
ETSI（European Telecommunication Standards Institute, ETSI）
Determine development EDGE（Enhanced Data Rates For GSM Evolution, GSM evolution enhanced data-rates）As
The GSM following evolution tendency.Reached to adapt dynamically to wireless transmission environments using link circuit self-adapting mode in EDGE standards
To the effect for improving link-quality.Link circuit self-adapting mode is by changing modulation system and coded combination in data transmission procedure
Realize.According to current EDGE standards, coded combination mainly has 3 groups, respectively MCS（Modulation and Coding
Scheme, Modulation and Coding Scheme）1-4, MCS5-6, MCS7-9.
Fig. 1 shows the schematic flow sheet that data transfer is realized using EDGE technologies, specifically, main to include following step
Suddenly：
Step 101, data transmitting equipment determine the coded system to data to be sent, using the coded system determined
The data to be sent are encoded, and encoding scheme code book corresponding with the encoding scheme determined is embedded into into coded modulation
In data.
In the step 101, code book corresponding with the encoding scheme determined is embedded into coded modulation by data transmitting equipment
In data, encoding scheme code book is mainly embedded into the frame bit steathily of continuous 4 bursts（Totally 8 bit）In.
Step 102, data transmitting equipment send the coding modulation data of embedded coding scheme code book to data receiver.
After step 103, data receiver receive coding modulation data, coding staff is parsed from coding modulation data
Case code book.
In the step 103, when data receiver parses encoding scheme code book from coding modulation data, mainly basis
The position of frame bit extracts the corresponding bit data of frame bit steathily steathily, and by from the bit number that frame bit is extracted steathily
According to as encoding scheme code book.
Step 104, data receiver determine coded system corresponding with the encoding scheme code book, and adopt and the coding
The corresponding decoding process of scheme is decoded to coding modulation data.
So far, realize that the flow process of data transfer terminates using EDGE technologies.
According to the corresponding flow processs of Fig. 1, data receiver can parse encoding scheme code book from coding modulation data,
And the decoding process to decoding data is determined based on the encoding scheme code book for parsing.In actual applications, data
Transmission may face the channel circumstance of various complexity, and wireless channel is inevitably present situations such as multipath and decline, by this
The data of the complicated channel circumstance transmission of sample are likely to deviation occur, therefore, directly will be from frame bit steathily according to prior art
The bit data that position extracts may affect the accuracy of encoding scheme code book, so as to affect data as encoding scheme code book
The accuracy of decoding.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of method and device for determining encoding scheme code book, using the skill
Art scheme, it is possible to increase the accuracy of the encoding scheme code book that data receiver is determined.
The embodiment of the present invention is achieved through the following technical solutions：
A kind of one side according to embodiments of the present invention, there is provided method of determination encoding scheme code book, including：
After data receiver receiving data sends the coding modulation data that equipment sends, from the coding modulation data
Parse frame bit data steathily；
It is determined that described steal frame bit data degree of association respectively with each group encoding scheme code book for pre-saving, wherein, institute
State the coding staff that each group encoding scheme code book includes that the coding modulation data is adopted when being encoded by the data transmitting equipment
The corresponding one group of code book of case；
The one group encoding scheme code book maximum with the degree of association for stealing frame bit data is defined as into the coded modulation
The corresponding code book of encoding scheme adopted when data are encoded.
Other side according to embodiments of the present invention, additionally provides a kind of device for determining encoding scheme code book, including：
Data receipt unit, sends the coding modulation data that equipment sends for receiving data；
Frame bit data resolution unit steathily, for parsing in the coding modulation data that receives from the data receipt unit
Frame bit data steathily；
Degree of association determining unit, for determining that the frame bit data of stealing that the frame bit data resolution unit steathily is parsed divides
Degree of association not with each group encoding scheme code book for pre-saving, wherein, each group encoding scheme code book includes the volume
The corresponding one group of code book of encoding scheme that code modulation data is adopted when being encoded by the data transmitting equipment；
Encoding scheme code book determining unit, steal frame bit number with described for the degree of association determining unit is determined
According to the maximum one group of encoding scheme code book of degree of association be defined as the encoding scheme code book that the coding modulation data is adopted.
By above-mentioned at least one technical scheme provided in an embodiment of the present invention, data receiver is sent in receiving data
After the coding modulation data that equipment sends, parse frame bit data steathily first from coding modulation data, and further determine that
Frame bit data degree of association respectively with each group encoding scheme code book for pre-saving steathily, each group encoding scheme that this pre-saves
Code book includes one group of code book of the encoding scheme that coding modulation data is adopted when being encoded by data transmitting equipment, further will be with
One group of maximum encoding scheme code book of the degree of association of frame bit data is defined as the volume adopted when coding modulation data is encoded steathily
The corresponding code book of code scheme.The technical scheme directly will parse frame bit data steathily from coding modulation data with prior art
The mode for being defined as encoding scheme code book is compared, and steals frame bit data from each group coding staff for pre-saving yet further still according to this
Select in case code book the maximally related encoding scheme code book of frame bit data is stolen with this, and directly by the encoding scheme selected
Encoding scheme corresponding code book of the code book as the coding modulation data, so as to improve the coding that data receiver is determined
The accuracy of scheme code book.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from description
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by the explanations write
In book, claims and accompanying drawing, specifically noted structure is realizing and obtain.
Description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for description, with present invention enforcement
Example is used for together explaining the present invention, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 realizes the schematic flow sheet of data transfer for the employing EDGE technologies that background technology is provided；
Fig. 2 is the schematic flow sheet that the embodiment of the present invention one provides coding scheme code book really；
Fig. 3 is that the data receiver that the embodiment of the present invention one is provided parses frame steathily from the coding modulation data for receiving
The schematic flow sheet of bit data；
Fig. 4 is that the data receiver that the embodiment of the present invention one is provided steals determination in frame bit soft decisions data from what is obtained
Go out to set the schematic flow sheet for stealing frame bit data of the continuous burst of number；
Fig. 5 is the frame bit data steathily that the data receiver determination parsing that the embodiment of the present invention one is provided is obtained and one group
The schematic flow sheet of the degree of association of encoding scheme code book；
Fig. 6 is the logical construction schematic diagram that the embodiment of the present invention one provides the device of coding scheme code book really.
Specific embodiment
In order to provide the implementation of the accuracy for improving the encoding scheme code book that data receiver is determined, the present invention
Embodiment provides a kind of method and device for determining encoding scheme code book, below in conjunction with Figure of description to the excellent of the present invention
Embodiment is selected to illustrate, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, and without
It is of the invention in limiting.And in the case where not conflicting, the feature in embodiment and embodiment in the application can mutual group
Close.
Embodiment one
The embodiment of the present invention one provides a kind of method for determining encoding scheme code book, and the method can be applied and be connect in data
In receiving unit, it is mainly used in determining the encoding scheme pair that the coding modulation data that data receiver is received is adopted when being encoded
The code book answered, and then the coding modulation data for receiving is decoded by the encoding scheme code book.
In the technical scheme that the embodiment of the present invention one is provided, data receiver needs to pre-save EDGE coded combinations
Each group encoding scheme code book, wherein, the coded system of every group of encoding scheme code book all corresponding datas, data transmitting equipment are sending
Before data, can select the coded system of data, and the coded system using selection carries out coding and obtain coding adjusting to data
Data processed, and for the coded system adopted when identification code modulation data is encoded, the coding modulation data can be adopted
The corresponding encoding scheme code book of encoding scheme be embedded in coding modulation data, in order to data receiver can based on should
Encoding scheme code book is decoded to the coding modulation data for receiving.Generally, each group that the data receiver is preserved
Encoding scheme code book can include each encoding scheme code book that data transmitting equipment may be selected when data are sent, these coding staffs
One group of encoding scheme code book is adopted when at least being encoded by data transmitting equipment including coding modulation data in case code book.For example, exist
In EDGE standards, each encoding scheme that data transmitting equipment side may select includes MCS1-4, MCS5-6, MCS7-9, and this is several
Encoding scheme distinguishes corresponding code book, including：
The corresponding code book of encoding scheme MCS1-4 1 is：0,0,0,1,0,1,1,0（Steal frame bit for totally 8）；
The corresponding code book of encoding scheme MCS5-6 2 is：0,0,0,0,0,0,0,0（Steal frame bit for totally 8）；
The corresponding code book of encoding scheme MCS7-9 3 is：1,1,1,0,0,1,1,1（Steal frame bit for totally 8）.
Correspondingly, the encoding scheme code book that data receiver is pre-saved generally comprise above-mentioned encoding scheme code book 1,
Encoding scheme code book 2 and encoding scheme code book 3, when each code book is stored, each code book（8 bits）One can be accounted for deposit
Storage address.
The method that the present embodiment one is provided can apply to various be embedded into coded system corresponding encoding scheme code book
Application scenarios in coding modulation data, specifically, encoding scheme code book is embedded into the position in coding modulation data can be by
Data transmitting equipment and data receiver are arranged, for example, in EDGE standards, data transmitting equipment will mainly be compiled
Code scheme code book is sent in being embedded into the frame bit steathily of continuous 4 bursts, and correspondingly, data receiver is by detecting 4
The frame bit of stealing of continuous burst obtains encoding scheme code book, and further, data receiver is it needs to be determined that frame bit exists steathily
Positional information in the bit stream of burst, further could get the frame bit steathily of 8 bits from the bit stream of burst.Tool
Body ground, EDGE standards regulation, coded system MCS1-4 use GMSK（Gaussian Filtered Minimum Shift
Keying, GMSK Gaussian-filtered minimum shift keying）Modulation system, one burst bit stream in typically have 116 bit datas,
It is the 57th bit and the 58th bit which steals frame bit corresponding position in burst bit stream（Count from 0 bit）；Coding staff
Formula MCS5-9 uses the modulation system of 8PSK, typically has 348 bit datas in the bit stream of a burst, and which steals frame ratio
Special position corresponding position in burst bit stream is the 174th bit and the 175th bit（Count from 0 bit）.
Based on the above-mentioned operation that each group encoding scheme code book is pre-saved in data receiver, Fig. 2 shows this reality
The schematic flow sheet that example one provides coding scheme code book really is applied, specifically, this determines the process of encoding scheme code book, mainly
Comprise the steps：
After step 201, data receiver receiving data send the coding modulation data that equipment sends, from the coded modulation
Frame bit data steathily is parsed in data.
Step 202, data receiver determine that the frame bit data of stealing that parsing is obtained is compiled with each group for pre-saving respectively
The degree of association of code scheme code book.
Step 203, data receiver are by the one group coding maximum with the degree of association for stealing frame bit data that parsing is obtained
Scheme code book is defined as the corresponding code book of encoding scheme that the coding modulation data is adopted.
So far, data receiver determines that the flow process of encoding scheme code book terminates.
The handling process of coding scheme code book really is provided based on Fig. 2, with prior art directly from coding modulation data
In parse frame bit data steathily and be determined directly as the mode of encoding scheme code book and compare, steal frame bit number yet further still according to this
Frame bit data maximally related encoding scheme code book is stolen with this according to selecting from each group encoding scheme code book for pre-saving, so
The corresponding code book of encoding scheme that afterwards the encoding scheme code book selected is adopted as the coding modulation data, so as to improve
The accuracy of the encoding scheme code book that data receiver is determined.
In the step of Fig. 2 correspondence flow processs include 201, data receiver is parsed steathily from the coding modulation data for receiving
Frame bit data, the embedded location in coding modulation data for being based primarily upon frame bit data steathily are extracted, and Fig. 3 shows
Data receiver parses the schematic flow sheet of frame bit data steathily from the coding modulation data for receiving, and specifically, this carries
Take process mainly to comprise the steps：
The frame bit steathily that step 301, data receiver acquisition carry out soft-decision process output to coding modulation data is soft
Judgement data.
In the step 301, soft-decision is carried out to coding modulation data and is processed mainly by the demodulator in data receiver
Carry out.In particular it is required that stealing frame bit soft decisions data and storing for demodulator output is extracted from correct position, wherein,
In EDGE standards, each soft-decision data can account for a storage address, and each burst need to store two and steal frame bit data.It is soft
Judgement data are generally signed integer, it is assumed that it is -128 ~ 127 that the data are 8 bits, i.e. scope, and now, -128 represent reception
Data for ' 1 ' maximum probability, 127 represent receive data for ' 0 ' maximum probability, 0 represent receive data be ' 1 ' or
' 0 ' probability is equal.
Step 302, data receiver are stolen in frame bit soft decisions data from what is obtained, determine the continuous of setting number
The frame bit data steathily of burst.
In the step 302, setting number is typically determined by coded system that, in EDGE standards, this sets number as 4.
So far, data receiver from the coding modulation data for receiving parses the flow process of frame bit data steathily and terminates.
Further, in the preferred implementation that the present embodiment one is provided, further to the detailed of above-mentioned steps 302
Processing procedure is illustrated.Fig. 4 shows that data receiver is determined from the frame bit soft decisions data steathily for obtaining and sets
The schematic flow sheet for stealing frame bit data that fixed number purpose continuously happens suddenly, specifically, the determination process mainly comprises the steps：
Step 401, data receiver are stolen in frame bit soft decisions data from what is obtained, determine that setting is continuous and happen suddenly
Bit stream.
In the step 401, if EDGE standards, then data receiver steals frame bit soft decisions data from what is obtained
In, determine the bit stream of 4 continuous bursts.
Step 402, data receiver according under each modulation system steal position of the frame bit data in burst bit stream
Information, determines.
In the step 402, data receiver has been pre-saved
Positional information in stream, for example, as described above, in EDGE standards, coded system MCS1-4 adopts GMSK modulation mode, one
Typically there are 116 bit datas in the bit stream of burst, steathily 57th bit and 58th bit of the frame bit in burst bit stream；
Modulation system of coded system MCS5-9 using 8PSK, has 348 bit datas in the bit stream of a burst, steathily frame bit
The 174th bit and the 175th bit in burst bit stream.It should be appreciated that be only for example herein, in practical application, according to institute
Accepted standard is different, and the position of frame bit is also different steathily, will not enumerate herein.Correspondingly, according to preservation
Positional information of the frame bit data in burst bit stream is stolen under each modulation system, can be it is determined that after current modulation mode, really
Make.
Step 403, data receiver are according to the positional information determined, the bit stream for continuously happening suddenly from setting respectively
Middle acquisition steals frame bit data with the positional information correspondence position.
In the step 403, according to the modulation system of 8PSK, then there are 348 bit datas in the bit stream of a burst,
And 174th bit and 175th bit of the frame bit in burst bit stream steathily, then according to this positional information, can successively from
Frame bit data steathily is determined in the bit stream of continuous several bursts.Generally, each burst bit stream includes 2 ratios
Special steals frame bit data.
So far, data receiver determines the continuous burst of setting number from the frame bit soft decisions data steathily for obtaining
Steal frame bit data flow process terminate.
Generally, the ratio that the bit number and each group encoding scheme code book of stealing frame bit data for parsing includes respectively
Special number is equal, for example, in EDGE standards, the bit number for stealing frame bit data for parsing is distinguished with each group encoding scheme code book
Including bit number be 8 bits.
The present embodiment one is further directed to the detailed process of above-mentioned steps 202 and has been described in detail, and specifically, data connect
Receiving unit determines that the frame bit data steathily that parsing is obtained is identical with the process of the degree of association of every group of encoding scheme code book respectively, Fig. 5
Show the flow process of the degree of association for stealing frame bit data and one group of encoding scheme code book that data receiver determines that parsing is obtained
Schematic diagram, specifically, the determination process of the degree of association mainly comprises the steps：
Step 501, determine each bit that encoding scheme code book includes in meet the bit of sets requirement, frame is stolen to this
Changed according to setting means with the value of the bit corresponding bit position for meeting sets requirement in bit data.
Realize process in the step 501, that is, determine the bit that each bit intermediate value that encoding scheme code book includes is 0
Position, will be constant for the value of the soft-decision data of 0 bit corresponding bit position with value in frame bit data steathily；And, it is determined that compiling
Each bit intermediate value that code scheme code book includes is 1 bit, by ratio corresponding with the bit that value is 1 in frame bit data steathily
The value of the soft-decision data of special position takes negative.Specifically, it is determined that meeting sets requirement in each bit for including of encoding scheme code book
Bit when, the sets requirement flexibly can be arranged, and for example, arrange the corresponding value of bit for " 1 ", that is, determine encoding scheme
Each bit intermediate value that code book includes is 1 bit, by meet sets requirement bit corresponding bit position value according to
Setting means is changed, and the setting means flexibly can be arranged, for example, by frame bit data steathily with value for 1 bit
The value of corresponding bit position takes negative, i.e., the bit for stealing frame bit data relevant position is entered according to each bit of encoding scheme code book
Row conversion：If encoding scheme codebook bits value is ' 0 ', frame bit data is constant steathily, if encoding scheme codebook bits value is ' 1 ',
Frame bit data takes negative steathily.It should be appreciated that be only for example herein for sets requirement and setting means, in practical application,
Can flexibly arrange, no longer illustrate one by one herein.
Step 502, according to conversion after steal the value of each bit that frame bit data includes, it is determined that frame bit data should be stolen
With the degree of association of this group of encoding scheme code book.
In the step 502, according to conversion after steal the value of each bit that frame bit data includes, it is determined that frame bit should be stolen
The degree of association of data and this group of encoding scheme code book, can by conversion after the value phase for stealing each bit that frame bit data includes
Plus the value for obtaining, it is defined as the degree of association for stealing frame bit data and this group of encoding scheme code book.
So far, data receiver determines the degree of association for stealing frame bit data and one group of encoding scheme code book that parsing is obtained
Flow process terminate.
Embodiment two
Corresponding with the method flow that above-described embodiment one provides coding scheme code book really, the embodiment of the present invention is also provided
A kind of device for determining encoding scheme code book, by the device, it is possible to increase the encoding scheme that data receiver is determined
The accuracy of code book.
Fig. 6 shows that the embodiment two provides the logical construction schematic diagram of the device of coding scheme code book really, such as Fig. 6
Shown, the device mainly includes：
Data receipt unit 601, steathily frame bit data resolution unit 602, degree of association determining unit 603 and encoding scheme
Code book determining unit 604；
Wherein：
Data receipt unit 601, sends the coding modulation data that equipment sends for receiving data；
Frame bit data resolution unit 602 steathily, for parsing in the coding modulation data that receives from data receipt unit
Frame bit data steathily；
Degree of association determining unit 603, for determining the frame bit data point steathily for stealing that frame bit data resolution unit is parsed
Degree of association not with each group encoding scheme code book for pre-saving, wherein, each group encoding scheme code book includes coded modulation number
According to the corresponding one group of code book of the encoding scheme adopted when being encoded by data transmitting equipment；
Encoding scheme code book determining unit 604, for determining degree of association determining unit and frame bit data steathily
One group of maximum encoding scheme code book of degree of association is defined as the corresponding code book of encoding scheme of coding modulation data employing.
In the preferred implementation that the present embodiment two is provided, what Fig. 6 shown devices included steals the parsing of frame bit data
Unit 602, specifically for obtain coding modulation data is carried out soft-decision process output steal frame bit soft decisions data, and from
Steathily in frame bit soft decisions data, that determines the continuous burst of setting steals frame bit data.
In the preferred implementation that the present embodiment two is provided, what Fig. 6 shown devices included steals the parsing of frame bit data
Unit 602, the bit stream specifically for the continuous burst of setting is determined from frame bit soft decisions data steathily, and according to each
Positional information of the frame bit data in burst bit stream is stolen under modulation system, the corresponding modulation system of coding modulation data is determined
Positional information of the frame bit data in burst bit stream is stolen down, and according to the positional information determined, is connected from setting respectively
The frame bit data steathily with positional information correspondence position is obtained in the bit stream of continuous burst.
In the preferred implementation that the present embodiment two is provided, what Fig. 6 shown devices included steals the parsing of frame bit data
Unit 602, the frame bit steathily specifically for parsing the bit number equal bits number for including with each group encoding scheme code book respectively
Data.
In the preferred implementation that the present embodiment two is provided, the degree of association determining unit that Fig. 6 shown devices include
603, the bit of sets requirement is met in each bit included specifically for determination encoding scheme code book, to stealing frame bit number
Changed according to setting means with the value of the bit corresponding bit position for meeting sets requirement according in, and according to conversion after steal
The value of each bit that frame bit data includes, it is determined that the degree of association of frame bit data and this group of encoding scheme code book steathily.
In the preferred implementation that the present embodiment two is provided, the degree of association determining unit that Fig. 6 shown devices include
603, each bit intermediate value included specifically for determination encoding scheme code book is 0 bit, described will steal frame bit data
In with it is described value for 0 bit corresponding bit position soft-decision data value it is constant；And, determine the encoding scheme code book
Including each bit intermediate value be 1 bit, by frame bit data steathily with value for 1 bit corresponding bit position soft sentencing
Certainly the value of data takes negative.
In the preferred implementation that the present embodiment two is provided, the degree of association determining unit that Fig. 6 shown devices include
603, the value for obtaining is added specifically for the value for stealing each bit that frame bit data includes after by conversion, be defined as frame ratio steathily
The degree of association of special data and this group of encoding scheme code book.
It should be appreciated that the unit that includes of the device of encoding scheme code book determined above only according to the function realized of the terminal
The logical partitioning for carrying out, in practical application, can carry out the superposition or fractionation of said units.And the embodiment two is provided really
The function realized by the device of coding scheme code book provides the method stream of coding scheme code book really with above-described embodiment one
Journey is corresponded, and for the more detailed handling process realized by the device, does retouch in said method embodiment in detail
State, be not described in detail herein.
Also, in the present embodiment two really the device of coding scheme code book also have can realize one scheme of embodiment
Functional module, here is omitted.
By above-mentioned at least one technical scheme provided in an embodiment of the present invention, data receiver is sent in receiving data
After the coding modulation data that equipment sends, parse frame bit data steathily first from coding modulation data, and further determine that
Frame bit data degree of association respectively with each group encoding scheme code book for pre-saving steathily, each group encoding scheme that this pre-saves
Code book includes the corresponding one group of code book of encoding scheme that coding modulation data is adopted when being encoded by data transmitting equipment, further
One group of degree of association with frame bit data steathily maximum encoding scheme code book is defined as adopting when coding modulation data is encoded
The corresponding code book of encoding scheme.The technical scheme directly will parse frame bit steathily from coding modulation data with prior art
Data are defined as the mode of encoding scheme code book and compare, and steal frame bit data yet further still according to this and compile from each group for pre-saving
Select in code scheme code book the maximally related encoding scheme code book of frame bit data is stolen with this, and directly by the coding selected
Encoding scheme corresponding code book of the scheme code book as the coding modulation data, so as to improve what data receiver was determined
The accuracy of encoding scheme code book.
Although having been described for the preferred embodiment of the application, those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into the had altered of the application scope and change.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (8)
1. it is a kind of determine encoding scheme code book method, it is characterised in that include：
After data receiver receiving data sends the coding modulation data that equipment sends, parse from the coding modulation data
Go out frame bit data steathily；
It is determined that described steal frame bit data degree of association respectively with each group encoding scheme code book for pre-saving, wherein, it is described each
Group encoding scheme code book includes the encoding scheme pair that the coding modulation data is adopted when being encoded by the data transmitting equipment
The one group of encoding scheme code book answered；Wherein, the bit number and each group encoding scheme for stealing frame bit data for parsing
The bit number that code book includes respectively is equal；
The one group encoding scheme code book maximum with the degree of association for stealing frame bit data is defined as into the coding modulation data
The encoding scheme code book adopted when being encoded；
Frame bit data degree of association respectively with each group encoding scheme code book for pre-saving is stolen described in the determination, including：Really
The bit of sets requirement is met in each bit that the fixed encoding scheme code book includes, to it is described steal in frame bit data with
The value of the bit corresponding bit position for meeting sets requirement is changed according to setting means；Frame ratio steathily after according to conversion
The value of each bit that special data include, it is determined that the degree of association for stealing frame bit data and this group of encoding scheme code book；
It is described determine each bit that the encoding scheme code book includes in meet the bit of sets requirement, steal frame ratio to described
Changed according to setting means with the value of the bit corresponding bit position for meeting sets requirement in special data, including：
Determine the bit that each bit intermediate value that the encoding scheme code book includes is 0, described will steal in frame bit data with
The value is constant for the value of the soft-decision data of 0 bit corresponding bit position；And, determine that the encoding scheme code book includes
Each bit intermediate value be 1 bit, by it is described steal in frame bit data with the value for 1 bit corresponding bit position
The value of soft-decision data takes negative.
2. the method for claim 1, it is characterised in that data receiver is parsed from the coding modulation data
Frame bit data steathily, including：
Data receiver obtains the frame bit soft decisions data steathily for carrying out that to the coding modulation data soft-decision processes output；
Steal in frame bit soft decisions data from described, determine the frame bit data steathily of the continuous burst of setting.
3. method as claimed in claim 2, it is characterised in that steal in frame bit soft decisions data from described, determine setting
Continuous burst steal frame bit data, including：
From the bit stream of the continuous burst stolen and setting is determined in frame bit soft decisions data；And
According to positional information of the frame bit data in the bit stream of continuous burst is stolen under each modulation system, determine that the coding is adjusted
Positional information of the frame bit data in the bit stream of continuous burst is stolen under the corresponding modulation system of data processed；
According to the positional information determined, obtain and the position from the bit stream of the continuous burst of the setting respectively
The frame bit data steathily of information correspondence position.
4. the method for claim 1, it is characterised in that steal each bit that frame bit data includes after according to conversion
Value, it is determined that the degree of association for stealing frame bit data and this group of encoding scheme code book, including：
The value for stealing each bit that frame bit data includes after by conversion is added the value for obtaining, and is defined as the frame bit number steathily
According to the degree of association with this group of encoding scheme code book.
5. it is a kind of determine encoding scheme code book device, it is characterised in that include：
Data receipt unit, sends the coding modulation data that equipment sends for receiving data；
Frame bit data resolution unit steathily, for parsing frame steathily in the coding modulation data that receives from the data receipt unit
Bit data；
Degree of association determining unit, for determine it is described steal that frame bit data resolution unit parses steal frame bit data respectively with
The degree of association of each group encoding scheme code book for pre-saving, wherein, each group encoding scheme code book includes that the coding is adjusted
The corresponding one group of encoding scheme code book of encoding scheme that data processed are adopted when being encoded by the data transmitting equipment；
Encoding scheme code book determining unit, for determining the degree of association determining unit and the frame bit data of stealing
One group of maximum encoding scheme code book of degree of association is defined as the corresponding encoding scheme code book of the coding modulation data；
It is described to steal frame bit data resolution unit, specifically for parsing the ratio for including with each group encoding scheme code book respectively
The frame bit data steathily of special number equal bits number；
The degree of association determining unit, specifically for one group of coding in each group encoding scheme code book that pre-saves described in determining
The bit of sets requirement is met in each bit that scheme code book includes, described stealing in frame bit data is set with the satisfaction
The value of the bit corresponding bit position of provisioning request is changed according to setting means, and according to conversion after steal frame bit data bag
The value of each bit for including, it is determined that the degree of association for stealing frame bit data and this group of encoding scheme code book；
The degree of association determining unit, each bit intermediate value included specifically for the determination encoding scheme code book are 0 ratio
Special position, steals constant for the value of the soft-decision data of 0 bit corresponding bit position with the value in frame bit data by described；With
And, determine the bit that each bit intermediate value that the encoding scheme code book includes is 1, described will steal in frame bit data with institute
State value be 1 bit corresponding bit position soft-decision data value take it is negative.
6. device as claimed in claim 5, it is characterised in that described to steal frame bit data resolution unit, specifically for obtaining
Carry out to the coding modulation data that soft-decision processes output steals frame bit soft decisions data, and steals that frame bit is soft sentences from described
Certainly in data, the frame bit data steathily of the continuous burst of setting is determined.
7. device as claimed in claim 6, it is characterised in that described to steal frame bit data resolution unit, specifically for from institute
Determine the bit stream of the continuous burst of setting in stating frame bit soft decisions data steathily, and according to frame ratio is stolen under each modulation system
Positional information of the special data in the bit stream of continuous burst, determines
Positional information of the bit data in the bit stream of continuous burst, and according to the positional information determined, respectively from described
The frame bit data steathily with the positional information correspondence position is obtained in the bit stream of the continuous burst of setting.
8. device as claimed in claim 5, it is characterised in that the degree of association determining unit, specifically for by after conversion
The value of each bit that frame bit data includes is added the value for obtaining steathily, is defined as the frame bit data steathily and this group of coding staff
The degree of association of case code book.
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| CN101647222A (en) * | 2007-03-16 | 2010-02-10 | 艾利森电话股份有限公司 | Method and processing unit for transmitting RLC/MAC control blocks |
| CN101753257A (en) * | 2008-12-19 | 2010-06-23 | 上海华为技术有限公司 | Method and device for differentiating a modulation code scheme corresponding to a wireless block and terminal |
| CN102118229A (en) * | 2011-03-22 | 2011-07-06 | 京信通信系统（中国）有限公司 | Method and device for FACCH (Fast Associated Control Channel) frame stealing detection of GSM (Global System for Mobile Communications) |
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| CN101647222A (en) * | 2007-03-16 | 2010-02-10 | 艾利森电话股份有限公司 | Method and processing unit for transmitting RLC/MAC control blocks |
| CN101753257A (en) * | 2008-12-19 | 2010-06-23 | 上海华为技术有限公司 | Method and device for differentiating a modulation code scheme corresponding to a wireless block and terminal |
| CN102118229A (en) * | 2011-03-22 | 2011-07-06 | 京信通信系统（中国）有限公司 | Method and device for FACCH (Fast Associated Control Channel) frame stealing detection of GSM (Global System for Mobile Communications) |
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