10 results about "Shift sequence" patented technology

The application relates to an audio denoising method and device, computer equipment and a storage medium, and relates to the technical field of computers. The application can be used in the field of financial technology or other related fields. The method comprises the following steps: a shift sequence set is obtained by performing shift transformation on an encoding sequence of audio data; a subsequence set corresponding to the shift sequence is obtained by dividing the shift sequence in the shift sequence set; a statistical feature of a subsequence in the subsequence set is obtained by performing measurement analysis on the subsequence with a target character string; and the audio data is directly denoised based on the statistical feature of the subsequence. According to the method, the audio data can be directly denoised without pre-labeling noise features.

Methods, systems, and devices for wireless communication are described. In some cases, a randomized shift of a base sequence can be used to transmit uplink control information. For example, a user equipment (UE) can identify a base sequence for an uplink control message. The UE can also receive signaling indicating a UE-specific initial shift that can be applied to the base sequence. In some examples, the signaling indicating the randomized shift can be explicit, implicit, or a combination thereof. After determining one or more shifted sequences based on the UE-specific initial shift, a payload of the uplink control message, and the base sequence, the UE can select a shifted sequence to be transmitted, where the selection is based on the payload of the uplink control message. For example, different shifted sequences can be selected for respective transmissions of a scheduling request, a 1-bit acknowledgement (ACK), a 2-bit ACK, and the like.

The present invention relates to a method and a device for transmitting a data frame using OFDM, the data frame comprising q binary words of size r, the binary words being modulated by a specific cyclic shift of a given root sequence of size N = 2r, the given root sequence comprising at least one zero value. It is proposed to determine (402), for each, the number of times a zero value appears at a position i of a sequence of the q sequences constituting the frame; obtaining (403) data relating to the channel quality of the N OFDM subcarriers; applying (404) a given cyclic shift to q sequences encoding q words of the frame to be transmitted, the value of the shift maximizing the number of non-zero values positioned on the subcarriers providing the best channel; and transmitting (405) the q shifted sequences in q different OFDM symbols.

Systems, methods, computer-readable medium, and apparatus are disclosed that allow for control information to be provided in an efficient manner during short burst transmission. For example, an apparatus may be configured to receive downlink control information (DCI) that indicates an allocated resource from a base station. The apparatus may also receive data from the base station. The apparatus may generate a cyclically shifted sequence that corresponds to a sequence that is cyclically shifted based on at least one of an ACK or NACK for the received data and a SR. The apparatus may then transmit the cyclically shifted sequence in the allocated resource within one symbol period of a slot of a subframe to the base station. Thus, by transmitting the SR and the ACK / NACK in one symbol, control information for short burst transmissions can be provided in a more temporally efficient manner without adding excessive complexity to the UE.

Methods, systems, and devices for wireless communications are described. In some cases, randomized shifts of a base sequence may be used for transmitting uplink control information. For example, a user equipment (UE) may identify a base sequence of an uplink control message. The UE may also receive signaling that indicates a UE-specific initial shift that may be applied to the base sequence. In some examples, the signaling that indicates the randomized shift may be explicit, implicit, or a combination thereof. After determining one or more shifted sequences based on the UE-specific initial shift, a payload of the uplink control message, and the base sequence, the UE may select a shifted sequence to be transmitted, where the selection is based on a payload of the uplink control message. For example, different shifted sequences may be selected for respective transmissions of scheduling requests, 1-bit acknowledgments (ACKs), 2-bit ACKs, and the like.

A method for determining a channel impulse response (CIR) estimation in ultra-wideband (UWB) communication using a supercomplementary zero-sum correlation (SZC) sequence block is provided. The method includes, obtaining, from a memory, a basic sequence of N chips and having perfect periodic autocorrelation function (PACF), N being an odd number. The method also includes performing, by a shifting logic, a circular shift of the chips in the basic sequence by a shift number to obtain a shifted sequence, the shift number being a positive number less than N. The method also includes computing, by an inverting logic, an inversion parameter of the shifted sequence. The method also includes computing, by the inverting logic, a output sequence based on the shifted sequence and the inversion parameter; and receiving, by an antenna, a transmitted sequence. The method further includes performing, by a correlator circuit, cross-correlation between the output sequence and the received sequence.

A communication apparatus includes: one or more memory devices configured to store information indicating a first base set including a first base sequence to an N-th base sequence; and one or more processors configured to: generate a first shift sequence to an N-th shift sequence by determining a shift amount based on transmission data, and cyclic shifting an n-th base sequence (n being an integer from 1 to N) by the shift amount; and transmit the n-th shift sequence, wherein the n-th base sequence satisfy a first condition of: a total across the first base sequence to the N-th base sequence of correlation values of autocorrelation is not 0 when a shift amount is 0, and is 0 when a shift amount is different from 0 used in data transmission.

Example embodiments of the present disclosure are directed to low-power-wake up signal (LP-WUS) message with circular shifted sequence. A method comprises in accordance with a determination that a LP-WUS from a second apparatus is detected, determine, on a plurality of ON symbols associated with the WUS signal, an overlaid sequence with a circular shift associated with an ON symbol mapped to a subgroup to which the first apparatus belongs; and determining, based on the circular shift, a subset of the on-duration window for a connected mode discontinuous reception (c-DRX) to be monitored; and monitoring a downlink transmission from the second apparatus within the subset of the on-duration window.

The present disclosure describes various solutions for a device determining transmission of a synchronization signal in mobile communications. The device can encode the synchronization signal based on a cyclically shifted sequence generated by a cyclically shifted root sequence. The cyclically shifted sequence can be masked. The root sequence can include a plurality of non-zero values and a plurality of zero values, and the positions of the plurality of non-zero values of any two different cyclically shifted sequences generated from the root sequence coincide at most once. The device can transmit the synchronization signal.

This application discloses a method, apparatus, electronic device, and storage medium for processing default data. The method includes: after obtaining a default date sequence for a first defaulting entity, shifting the position of the default dates in the default date sequence backward to obtain a backward-shifted sequence, and associating the default date sequence and the backward-shifted sequence to obtain a first date sequence that includes at least the start dates of the consecutive default dates of the first defaulting entity; simultaneously, shifting the position of the default dates in the default date sequence forward to obtain a forward-shifted sequence, and associating the default date sequence and the forward-shifted sequence to obtain a second date sequence that includes at least the end dates of the consecutive default dates of the first defaulting entity; finally, determining the number of consecutive default days for the first defaulting entity based on the first and second date sequences. The solution provided by this application improves the calculation efficiency of the number of consecutive default days.