A convolutional decoder includes a first storage, a second storage, a branch metric processor to determine branch metrics for transitions of states from a start step to a last step according to input bit streams, an ACS processor to select maximum likelihood path metrics to determine a survival path according to the branch metrics and to update states of the start step to the first storage and the second storage alternately based on the selection of the maximum likelihood path metrics, and a trace back logic to selectively trace back the survival path based on the states of the start step stored in a selected storage among the first storage and the second storage.

The present disclosure discloses a downlink control information detecting method, a downlink control information transmitting method, a terminal and a network device. The method includes: obtaining indication information for indicating a candidate downlink control information (DCI) payload size; according to the candidate DCI payload size indicated by the indication information, performing blind detection on a physical downlink control channel (PDCCH) and determining DCI transmitted in the PDCCH.

The disclosure provides a method and a device in a communication node for wireless communications. The communication node first receives first information and then receives a first radio signal; only X1 bit(s) in a first bit block is(are) used for generating the first radio signal, the first bit block is obtained as an output of channel coding of a first code block, the first code block includes a positive integer number of bit(s), and the first bit block includes a positive integer number of bit(s); when channel decoding fails, at least X2 bit(s) in the first bit block can be used for decoding of the first code block with combining, the first information is used for determining the X2 bit(s), and the X2 is a positive integer. The disclosure reduces requirements on a buffer and reduces complexity.

A transmitter can include a laser operable to output an optical signal; a digital signal processor operable to receive user data and provide electrical signals based on the data; and a modulator operable to modulate the optical signal to provide optical subcarriers based on the electrical signals. A first one of the subcarriers carriers carries first TDMA encoded information and second TDMA encoded information, such that the first TDMA encoded information is indicative of a first portion of the data and is carried by the first one of the subcarriers during a first time slot, and the second TDMA encoded information is indicative of a second portion of the data and is carried by the first one of the subcarriers during a second time slot. The first TDMA encoded information is associated with a first node remote from the transmitter and the second TDMA encoded information is associated with a second node remote from the transmitter. A second one of the subcarriers carries third information that is not TDMA encoded, the third information being associated with a third node remote from the transmitter. A receiver and system also are described.

A data processing method and a device, the method including determining, by an optical network unit, in a received data stream, after the optical network unit enters a pre-synchronization state, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of a physical synchronization sequence (Psync) field, performing an FEC codeword decoding check, where the Psync field is a field that matches a preset Psync, in the data stream, and entering, by the optical network unit, a synchronization state in response to an FEC codeword among N consecutive FEC codewords in the data stream passing the decoding check, where N is an integer greater than or equal to 1.

An information processing apparatus includes: a decoding module, configured to receive M first codewords from at least one peer device, where each first codeword includes first service data with a K-unit length and an error correction code with an R-unit length, where the decoding module is further configured to decode the M first codewords to obtain M second codewords, where a length of each second codeword is a sum of the K-unit length and the R-unit length, each second codeword includes second service data with the K-unit length and error correction information, the second service data is error-corrected first service data; and a classification and statistics collection module, configured to determine a bit error rate of the first service data based on the error correction information.

Method and device in nodes used for wireless communication. A first node receives a first signaling, receives a second signaling, and transmits a first signal in a first radio resource block. The first signal comprises a second sub-signal; a value of a first field in the first signaling is used to indicate a first offset from a first offset set, a value of a first field in the second signaling is used to indicate a second offset from a second offset set, only the second offset is used to determine a number of Resource Element(s) (RE(s)) occupied by the second sub-signal in the first radio resource block; the first signaling is used to determine a first priority, the second signaling is used to determine a second priority, a signaling format of the first signaling is used to determine that the first offset set is related to the first priority.

A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding service data, a mapper for mapping the encoded service data into a plurality of OFDM (Orthogonal Frequency Division Multiplex) symbols to build at least one signal frame, a frequency interleaver for frequency interleaving data in the at least one signal frame by using a different interleaving-seed which is used for every OFDM symbol pair comprised of two sequential OFDM symbols, a modulator for modulating the frequency interleaved data by an OFDM scheme and a transmitter for transmitting the broadcast signals having the modulated data, wherein the different interleaving-seed is generated based on a cyclic shifting value and wherein an interleaving seed is variable based on an FFT size of the modulating.

Methods, apparatuses, and computer readable media include an apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to decode a legacy preamble of a physical layer (PHY) protocol data unit (PPDU), determine whether the legacy preamble comprises an indication that the PPDU is an extremely-high throughput (EHT) PPDU, and in response to the determination indicating the PPDU is the EHT PPDU, decode the EHT PPDU. Some embodiments determine a spatial stream resource allocation based on a row of a spatial configuration table, a row of a frequency resource unit table, a number of stations, and location of the station relative to the number of stations in user fields of an EHT-signal (SIG) field. To accommodate 16 spatial streams, some embodiments extend the length of the packet extension field, extend signaling of a number of spatial streams, and/or extend a number of EHT-SIG symbols.

A method and an apparatus in a multiple-input multiple-output (MIMO) wireless communication system are provided. A signal is received over a channel. The channel is decomposed into a plurality of virtual channels. Symbol detection is performed on each of the plurality of virtual channels. Values are obtained for the channel. Decoding is performed using the values to output a decoded symbol value of the received signal.