A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding based on a parity check matrix; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.

A decoding method and associated circuit are provided. The circuit includes a first memory, a decoder and a control circuit. In operations of the circuit, the first memory is configured to receive a data stream; the decoder is configured to receive the data stream to sequentially generate a plurality of frames, and sequentially decode the plurality of frames to respectively generate a plurality of codewords; and the control circuit is configured to determine an allowed maximum iteration count for decoding a current frame according to an iteration count for successfully decoding at least one previous frame of the current frame.

Techniques and apparatus for early termination of decoding of communication channels for power saving in narrowband devices are provided. One technique includes monitoring for one or more first repetitions of at least one communication channel from a base station. The device determines, based on the monitoring, whether to refrain from monitoring for one or more second repetitions of the at least one communication channel. The device enters a low power mode if the determination is to refrain from monitoring for the one or more second repetitions of the at least one communication channel.

An iterative receiver receives a signal including useful and interfering signal components, and detects information carried thereon. The receiver includes at least one estimating unit receiving the signal and providing an estimate of each signal component, and at least two decoding and regenerating units, at each iteration, each decoding and regenerating unit decoding a respective one among the estimates and for regenerating the respective decoded estimate into a respective regenerated estimate. At each receiver iteration, the at least one estimating unit provides estimates based on regenerated estimates provided at a previous iteration. The receiver further includes a control unit determines activation or deactivation of each decoding and regenerating unit at each process step of a detection process dedicated to detection of the signal, and determines, for each process step, a respective number of allowed iterations for each decoding and regenerating unit whose activation has been determined for that process step.

A wireless network includes a base station and a user equipment. The base station is configured to wirelessly transmit radio frequency (RF) signaling representing synchronization signal block (SSB) burst comprising a set of SSBs, each SSB associated with a different beam transmitted by the base station and having a corresponding index value representing a position of the SSB in the SSB burst. The user equipment is configured to detect an SSB of the SSB burst and to identify an index value of the SSB by iteratively performing a decoding process for a physical broadcast channel (PBCH) of the SSB, each performed iteration using a different index values selected from a prioritized ordering of the set of index values.

A system and method for improving forward error correction efficiency in a communication network. The system and method employ a controller configured to evaluate a plurality of frames to identify a first type of the plurality of frames having a first frame processing characteristic pertaining to a first type of frame iteration processing performed by a terminal of the communication network and a second type of the plurality of frames having a second frame processing characteristic pertaining to a second type of frame iteration processing performed by the terminal. The controller is further configured to arrange a plurality of the first type of frames and at least one of the plurality of the second type of frames in an alternating order within a transmission window for transmission to the terminal.

An iterative receiver receives a signal including useful and interfering signal components, and detects information carried thereon. The receiver includes at least one estimating unit receiving the signal and providing an estimate of each signal component, and at least two decoding and regenerating units, at each iteration, each decoding and regenerating unit decoding a respective one among the estimates and for regenerating the respective decoded estimate into a respective regenerated estimate. At each receiver iteration, the at least one estimating unit provides estimates based on regenerated estimates provided at a previous iteration. The receiver further includes a control unit determines activation or deactivation of each decoding and regenerating unit at each process step of a detection process dedicated to detection of the signal, and determines, for each process step, a respective number of allowed iterations for each decoding and regenerating unit whose activation has been determined for that process step.

A wireless network includes a base station and a user equipment. The base station is configured to wirelessly transmit radio frequency (RF) signaling representing synchronization signal block (SSB) burst comprising a set of SSBs, each SSB associated with a different beam transmitted by the base station and having a corresponding index value representing a position of the SSB in the SSB burst. The user equipment is configured to detect an SSB of the SSB burst and to identify an index value of the SSB by iteratively performing a decoding process for a physical broadcast channel (PBCH) of the SSB, each performed iteration using a different index values selected from a prioritized ordering of the set of index values.

A decoder having an input configured to receive a sequence of softbits presumed to correspond to a convolutionally-encoded codeword; and a decoding circuit configured to: determine, as part of a decoding process, a Maximum Likelihood (ML) survivor path in a trellis representation of the codeword; determine whether the presumed convolutionally-encoded codeword meets an early-termination criteria; and abort the decoding process if the presumed convolutionally-encoded codeword meets the early-termination criteria, continue the decoding process if the presumed convolutionally-encoded codeword fails to meet the early-termination criteria.

Techniques for improving data rates at mobile terminals that are subject to periodic channel interruptions in a beyond-line-of-sight communication system are disclosed, including improved encoding and decoding systems that identify blockages and modify receiver operation during blockages to reduce data errors. In certain embodiments, encoding, symbol mapping, interleaving, and use of unique periodic identifiers function to enable a series of packets that may be received in a blockage impaired channel with reduced errors.