Patent classifications
H03M13/6588
POLAR CODING METHOD, APPARATUS, AND DEVICE
Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.
Threshold-based min-sum algorithm to lower the error floors of quantized low-density parity-check decoders
A modified version of the min-sum algorithm (MSA) which can lower the error floor performance of quantized LDPC decoders. A threshold attenuated min-sum algorithm (TAMSA) and/or threshold offset min-sum algorithm (TOMSA), which selectively attenuates or offsets a check node log-likelihood ratio (LLR) if the check node receives any variable node LLR with magnitude below a predetermined threshold, while allowing a check node LLR to reach the maximum quantizer level if all the variable node LLRs received by the check node have magnitude greater than the threshold. Embodiments of the present invention can provide desirable results even without knowledge of the location, type, or multiplicity of such objects and can be implemented with only a minor modification to existing decoder hardware.
Spatial-temporal compression of sensing data for sensor network
Spatial-temporal compression of sensing data from a plurality of sensors involves using a plurality of sensors to obtain measured physical data associated with a plurality of sensed elements. At each of a plurality of sampling times a set of N sampled data is acquired from the N sensed elements corresponding to the measured physical data. The sets of sampled data are analyzed to obtain statistical characteristic information. Thereafter, one or more frames of compressed data is generated using the statistical characteristic information to facilitate temporal and spatial data compression.
POLAR CODING METHOD, APPARATUS, AND DEVICE
Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.
Decoding apparatus and method in mobile communication system using non-binary low-density parity-check code
A decoding method in a mobile communication system using a non-binary LDPC code according to various embodiments of the present disclosure includes: selecting a message value having the highest reliability from each column and each row of an input vector message; generating a configuration set using the message value selected for each column and a GF element corresponding to the message value; and generating a check node output message using the generated configuration set and an extra output message value. According to various embodiments of the present disclosure, a decoding time period is reduced.
Polar coding method, apparatus, and device
Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.
Height compensating loader implement tool level indicator
A bucket level indicator mechanism for use with work machine with a front mounted loader implement includes a carriage assembly having a carriage frame comprising a carriage back and first and second carriage endplates at longitudinal ends of the carriage back, a first end of the carriage assembly being pivotably connected to one of the masts, wherein the carriage back has a slot formed therein along a portion of its longitudinal length. At least one guide rod extends between the carriage endplates. A boom height compensating link is mounted on the upper arm section. The boom height compensating link has at least one fixed traveler configured to be received in the slot in the carriage back, the carriage assembly being mounted so as to slide relative the traveler, wherein as the loader boom is raised and lowered by extension or retraction of the lift actuator, the carriage assembly rotates relative the mast about a pivot as the traveler slides in the slot in the carriage back. A twisted strip extends between the carriage endplates supported by the carriage assembly configured to rotate relative the carriage endplates. A sliding indicator nut rides on the at least one guide rod such that the sliding indicator nut may move along the longitudinal axis of the carriage assembly but is prevented from rotating relative the carriage assembly, wherein the indicator nut has a center aperture that receives the twisted strip and permits longitudinal movement of the nut relative the twisted strip along an axis A of the carriage assembly, but prevents angular movement of the portion of the twisted strip that engages the nut relative to the nut, wherein the nut is driven along the axis A of the carriage assembly by a linkage that is connected relative the bucket such that the nut reflects the level position of the bucket.
RADIO DATA COMMUNICATION SYSTEM AND METHOD
The disclosure relates to a radio data communication system, comprising: a plurality of radio units, each radio unit having a transceiver and an antenna; and a gateway unit connected to each of the plurality of radio units via a first data bus, wherein each transceiver in the plurality of radio units is configured to: receive a data signal from a respective antenna; compress the received data signal using a data compression algorithm; and transmit the compressed data signal to the gateway unit via the first data bus, wherein the data compression algorithm includes a bit shifting operation performed by a multiply-accumulate operation.
Non-uniform quantization of log likelihood ratios
A method of processing a signal by non-uniform quantization of log likelihood ratios is disclosed. A method comprising the steps of: receiving a plurality of bits; calculating a log likelihood ratio, known as a LLR, for each bit; providing a LLR value for each bit based on the calculated LLR; quantizing the LLR values into a plurality of quantization bins, each quantization bin having: a width representative of one or more LLR values; and an index value having a bit length; and associating each bit with the index value that corresponds to its LLR value, wherein the width of each quantization bin is non-uniform. This compresses the LLR values in a more efficient manner, requiring lower memory usage and/or lower bandwidth. A chip for a receiver and a communication system comprising one or more receivers are also disclosed.
Systems and methods for side data based soft data flash memory access
Embodiments are related to systems and methods for data storage, and more particularly to systems and methods for storing and accessing data from a flash memory.