RussianPatents.com

Method and device for estimated non-binary encoding with repeat and accumulation and of space-time encoding. RU patent 2262192.

Method and device for estimated non-binary encoding with repeat and accumulation and of space-time encoding. RU patent 2262192.

FIELD: mobile telecommunication systems.

SUBSTANCE: transferred data are divided on separate frames, each of which contains mN bits, and each frame is additionally segmented on N blocks, each of which contains m bits. N blocks are transformed to N non-binary Galois field elements, GF(2m). Aforementioned N non-binary symbols are repeated with repeat coefficient r. rN symbols are multiplied by weight coefficients, being non-zero elements of GF(2m). rN estimated symbols are alternated and accumulated. rN of accumulated symbols are transferred to receiver, or, prior to transfer, reverse imaging of each of rN accumulated symbols to m bits is performed.

EFFECT: higher reliability.

2 cl, 5 dwg

 


 

IPC classes for russian patent Method and device for estimated non-binary encoding with repeat and accumulation and of space-time encoding. RU patent 2262192. (RU 2262192):

H03M13 - Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes (error detection or error correction for analogue/digital, digital/analogue or code conversion H03M0001000000-H03M0011000000; specially adapted for digital computers G06F0011080000, for information storage based on relative movement between record carrier and transducer G11B, e.g. G11B0020180000, for static stores G11C)
Another patents in same IPC classes:
Interleaver and method for interleaving in communication system Interleaver and method for interleaving in communication system / 2261529
Proposed interleaver with partial reverse order of bits provides for sequential column-by-column configuring of size N input data stream in matrix that has 2m lines and J - 1 columns, as well as R lines in column J, interleaving of configured data, and line-by-line reading of interleaved data.
Method for transferring messages in communication systems Method for transferring messages in communication systems / 2260915
Method includes encoding input information at transmitting side with interference-resistant code, to which symbols of synchronizing series are added and received symbols series is sent to communication channel, at receiving side in received series of symbols synchronizing series is detected and cyclic synchronization of received series of symbols is performed, then interference-resistant code is singled out, decoded with detection and correction of errors in interference-resistant code and decoded information is given to message receiver, while tat transferring side symbols of synchronizing series are formed by transformation of symbols of checking portion of interference-resistant code, and at receiving side detection of synchronizing series is performed by checking match of functional dependence of synchronizing series and checking portion of interference-resistant code.
Data transfer system using variable-parameter noise-immune code Data transfer system using variable-parameter noise-immune code / 2260246
Newly introduced in system on sending end are transmitting-part code parameter register, transmitting part control signal distributor, and transmitting-part switching unit; control input of system transmitting part is connected to input of transmitting-part code parameter register whose first output is connected to control input of external code encoder and second output, to first data input of transmitting-part switching unit; transmitting-part synchronization input of system is connected to input of transmitting-part control signal distributor whose first output functions as control input of sync pulse train generator; newly introduced on receiving end are receiving-part switching unit, internal-code syndrome computing circuit, internal-code syndrome decoder, and code parameter computing unit; synchronization input of system receiving part is connected to input of control signal distributor whose control input is connected to output of frame synchronization device and output, to syndrome decoder input.
Device and method for encoding/decoding in communications network Device and method for encoding/decoding in communications network / 2258306
Coder encodes series of information bits at given encoding speed and outputs encoded symbols. Controller control coder so that when length of frame of series of information bits is first length, coder outputs encoded symbols, and when length of frame of series of information bits is second length, coder outputs partial symbols from encoded symbols, while second length is less than first length.
Interleaver and interleaving process in communication system Interleaver and interleaving process in communication system / 2255419
Proposed partial reverse bit-order interleaver (P-RBO) functions to sequentially column-by-column configure input data stream of size N in matrix that has 2m lines and (J - 1) columns, as well as R lines in J column, to interleave configured data, and to read out interleaved data from lines.
Codec for noise immune cyclic code Codec for noise immune cyclic code / 2254676
Proposed codec has on sending end code-word data part shaper whose output and that of code-word synchronizing part shaper are connected to modulo two adder input; on receiving end it has binary filter whose code-word data part shaper output is connected to accumulator connected to synchronizing sequence decoder and to error connection unit whose outputs are connected to respective inverting inputs of code-word data part shaper; output of the latter functions as data output of device; output of binary-filter code-word synchronizing part is connected through switching unit to input of code-word data part shaping unit; synchronizing sequence decoder output is connected to control input of switching unit and to error correction unit input; on receiving end accumulator outputs are connected to inputs of code-word data part shift decoder whose output is connected to input of delay circuit whose output functions as second control input of switching unit and as synchronizing output of device.
Communication channel simulation method Communication channel simulation method / 2254675
Proposed method includes evaluation of set of communication channel states S0,S1, ..., Sm - 1 and calculation of conditional error probabilities P(e/s) in each state s" i = 0, ..., m - 1 of communication channel, and error acquisition in communication channel in compliance with conditional error probability for current state of communication channel; in the process probability of error-free interval p(0i) of i bits is found, and conditional probabilities p(0i1/11), p(0i1/01) of error-free intervals of i bits are calculated with respect to them basing on probabilities p(0i) and using recurrent rules during each current time interval and preceding one on condition that for error generation use is made of two states of communication channel corresponding to combination of errors 11 or 01; random number p uniformly distributed within interval between 0 and 1 is generated; conditional probabilities p(0i1/11), p(0i1/01) are summed up starting from i = 0 resulting in sequence 0k1 that constitutes bit-by-bit stream of communication channel errors.
Device and method for check transmission for increasing carrying capacity of transmission in information transmitting system Device and method for check transmission for increasing carrying capacity of transmission in information transmitting system / 2251813
Method includes selecting one combination among given combinations, appropriate for several or every generated symbols of code word to transmit generated symbols of code word with length of sub-packet, determined in accordance to data transfer speed, information, appropriate for data transfer speed, is read, also based on length of sub-packet and chosen combination, from a table, wherein identification information, pointing at data transfer speed, sub-packet length and selected combination, is, is previously displayed for given information, and generated code word symbols are transmitted in accordance to read information and in accordance to selected combination.
Device and method for generating codes in communication system Device and method for generating codes in communication system / 2251794
Method includes segmentation of length N of quasi-complementary turbo-codes on preset amount of sections, determining identifiers of sub-code packets appropriate for segmented portions, setting of said packets separated for initial transfer of sub-code, calculation of number of remaining symbols in form N-Fs, where N - length of quasi-complementary turbo-codes, and Fs - position of start symbol of sub-code of quasi-complementary turbo-codes, determining position of symbol of remaining symbols in amount equal to sub-codes amount, which have to be sent and serial transfer of sub-code symbols from position of starting symbol Fs to position of last symbol Ls.
Device and method for generating codes in communications system Device and method for generating codes in communications system / 2251793
Method includes generating sets of sub-codes of quasi-additional turbo-codes with given encoding speeds, and given sub-codes are reorganized as a set of sub-codes with another encoding speed for use in next transfer of sub-code with given encoding speed.
High-speed module for adding/comparing/selecting for use with witterby decoder High-speed module for adding/comparing/selecting for use with witterby decoder / 2246751
System has first memory element for storing metrics of basic states, multiplexer, capable of selection between first and second operating routes on basis of even and odd time step, adding/comparing/selecting mechanism, which calculates metrics of end states for each state metric. Second memory element, connected to adding/comparing/selecting mechanism and multiplexer is used for temporary storage of end states metrics. Multiplexer selects first operating route during even time steps and provides basic states metrics, extracted from first memory element, to said mechanism to form end state metrics. During odd cycles multiplexer picks second operating route for access to second memory element and use of previously calculated end state metrics as metrics of intermediate source states.
Coding/decoding device and method for mobile code-division multiple access communication system Coding/decoding device and method for mobile code-division multiple access communication system / 2250563
Proposed device and method for mobile code-division multiple access communication system including device for transferring channel of backward-link transmission speed indicator afford generation of optimal code words ensuring optimal coding for all types of coding procedures from optimal type (24.1) up to optimal coding procedure 24.7 and supporting all optimal-coding devices.
Noise-immune cyclic code codec Noise-immune cyclic code codec / 2251210
Proposed noise-immune cyclic code codec designed for data transfer without pre-phasing has on sending end code-word information section shaper incorporating shift-register memory elements, units for computing verifying parts of noise-immune code of code-word information section, and modulo two adder of code-word information section shaper; code-word synchronizing section shaper and modulo two adder of code-word synchronizing section; on receiving end it has binary filter incorporating binary-filter shift register memory elements, computing units for verifying parts of binary-filter noise-immune code, and binary-filter modulo two adder; shift register of code word information section; decoder; accumulator; error correction unit; unit for shaping synchronizing section of code word; and modulo two adder units.
Noise-immune cyclic code codec Noise-immune cyclic code codec / 2251210
Proposed noise-immune cyclic code codec designed for data transfer without pre-phasing has on sending end code-word information section shaper incorporating shift-register memory elements, units for computing verifying parts of noise-immune code of code-word information section, and modulo two adder of code-word information section shaper; code-word synchronizing section shaper and modulo two adder of code-word synchronizing section; on receiving end it has binary filter incorporating binary-filter shift register memory elements, computing units for verifying parts of binary-filter noise-immune code, and binary-filter modulo two adder; shift register of code word information section; decoder; accumulator; error correction unit; unit for shaping synchronizing section of code word; and modulo two adder units.
Device and method for generating codes in communications system Device and method for generating codes in communications system / 2251793
Method includes generating sets of sub-codes of quasi-additional turbo-codes with given encoding speeds, and given sub-codes are reorganized as a set of sub-codes with another encoding speed for use in next transfer of sub-code with given encoding speed.
Device and method for generating codes in communication system Device and method for generating codes in communication system / 2251794
Method includes segmentation of length N of quasi-complementary turbo-codes on preset amount of sections, determining identifiers of sub-code packets appropriate for segmented portions, setting of said packets separated for initial transfer of sub-code, calculation of number of remaining symbols in form N-Fs, where N - length of quasi-complementary turbo-codes, and Fs - position of start symbol of sub-code of quasi-complementary turbo-codes, determining position of symbol of remaining symbols in amount equal to sub-codes amount, which have to be sent and serial transfer of sub-code symbols from position of starting symbol Fs to position of last symbol Ls.
Device and method for check transmission for increasing carrying capacity of transmission in information transmitting system Device and method for check transmission for increasing carrying capacity of transmission in information transmitting system / 2251813
Method includes selecting one combination among given combinations, appropriate for several or every generated symbols of code word to transmit generated symbols of code word with length of sub-packet, determined in accordance to data transfer speed, information, appropriate for data transfer speed, is read, also based on length of sub-packet and chosen combination, from a table, wherein identification information, pointing at data transfer speed, sub-packet length and selected combination, is, is previously displayed for given information, and generated code word symbols are transmitted in accordance to read information and in accordance to selected combination.
Communication channel simulation method Communication channel simulation method / 2254675
Proposed method includes evaluation of set of communication channel states S0,S1, ..., Sm - 1 and calculation of conditional error probabilities P(e/s) in each state s" i = 0, ..., m - 1 of communication channel, and error acquisition in communication channel in compliance with conditional error probability for current state of communication channel; in the process probability of error-free interval p(0i) of i bits is found, and conditional probabilities p(0i1/11), p(0i1/01) of error-free intervals of i bits are calculated with respect to them basing on probabilities p(0i) and using recurrent rules during each current time interval and preceding one on condition that for error generation use is made of two states of communication channel corresponding to combination of errors 11 or 01; random number p uniformly distributed within interval between 0 and 1 is generated; conditional probabilities p(0i1/11), p(0i1/01) are summed up starting from i = 0 resulting in sequence 0k1 that constitutes bit-by-bit stream of communication channel errors.
Codec for noise immune cyclic code Codec for noise immune cyclic code / 2254676
Proposed codec has on sending end code-word data part shaper whose output and that of code-word synchronizing part shaper are connected to modulo two adder input; on receiving end it has binary filter whose code-word data part shaper output is connected to accumulator connected to synchronizing sequence decoder and to error connection unit whose outputs are connected to respective inverting inputs of code-word data part shaper; output of the latter functions as data output of device; output of binary-filter code-word synchronizing part is connected through switching unit to input of code-word data part shaping unit; synchronizing sequence decoder output is connected to control input of switching unit and to error correction unit input; on receiving end accumulator outputs are connected to inputs of code-word data part shift decoder whose output is connected to input of delay circuit whose output functions as second control input of switching unit and as synchronizing output of device.
Interleaver and interleaving process in communication system Interleaver and interleaving process in communication system / 2255419
Proposed partial reverse bit-order interleaver (P-RBO) functions to sequentially column-by-column configure input data stream of size N in matrix that has 2m lines and (J - 1) columns, as well as R lines in J column, to interleave configured data, and to read out interleaved data from lines.
© 2013-2014 Russian business network RussianPatents.com - Special Russian commercial information project for world wide. Foreign filing in English.