55results about "Error detection/prevention using signal quality detector" patented technology

The present disclosure relates to field of wireless communication that discloses method and system for providing session specific transmission of data streams using Artificial Intelligence (AI). System determines type of session initiated by source for transmission of data streams. System initiates encoding of data streams to obtain encoded data streams, using predefined modulation technique among modulation techniques that supports maximum number of bits. System transmits encoded data streams to source using antennas associated with transceiver system, and receives Bit Error Rate (BER) value and level value of cache memory of data streams from source. System determines based on level value in cache memory and BER value, updated modulation technique by comparing level value with level values in level table among level tables, using trained AI model. Finally, system transmits upcoming data stream using updated modulation technique. The present disclosure helps in providing session specific smooth transmission of data streams.

According to various embodiments of the present disclosure, a method performed by a first node may comprise the steps of: transmitting, to a second node, an IKE_SA_INIT request including a quantum-secure transform type and a transform identifier (ID) of a quantum key distribution (QKD); receiving, from the second node, an IKE_SA_INIT response including the quantum-secure transform type and the transform ID of the QKD; transmitting, to the second node through a quantum channel, a quantum key exchange (QKE) message including a quantum key (QK) length (QK length), a quantum key (QK) basis, and a quantum seed; and receiving, from the second node through a classical channel, a quantum bit error rate (QBER) message including a QBER associated with an initial quantum key based on the QKE message.

The application discloses a SNR-MCS dynamic mapping table design method, and belongs to the technical field of wireless communication, comprising: continuously updating the SNR-MCS dynamic mapping table; outputting the transmission success probability based on the probability prediction model according to the signal-to-noise ratio and the modulation and coding mode; screening the MCS candidate set according to the transmission success probability to construct the MCS prediction model; collecting the actual signal-to-noise ratio to input the MCS prediction model to output the modulation and coding mode, and collecting the transmission feedback to update the data pool; dividing the signal-to-noise ratio into several segments, generating the SNR-MCS dynamic mapping table based on the coverage range of the signal-to-noise ratio of each segment and the MCS prediction model; using the SNR-MCS dynamic mapping table for interaction and updating the data pool; and retraining the probability prediction model through the updated data pool. The application solves the problem of low transmission efficiency and reliability caused by the fact that the prior art cannot adapt to the changing channel conditions.

Example embodiments relate to feedback based on a map or a mapping configuration. In an aspect, a first device obtains first information, which is associated with at least one of a first map, a second map, a mapping configuration between them. Then the first device obtains second information associated with the at least one of the first map, the second map or the mapping configuration. Based on a comparison between the second information and the first information, the first device determines whether to transmit feedback to the second device. Based on determining to transmit the feedback, the first device transmits the feedback to the second device. As such, the comparison between the second information and the first information may be indicated to the second device. Therefore, the sensing performance and communication performance are improved, and the processing delay and complexity are reduced.

An eye margin test method includes receiving an analog input signal, receiving an analog input signal, generating a recovery clock signal based on the digital input signal, delaying the recovery clock signal by adjusting a first delay control code, obtaining a first delay margin code based on the delayed recovery clock signal, delaying the digital input signal by adjusting a second delay control code, obtaining a second delay margin code based on the delayed digital input signal, and obtaining an eye margin code by adding the first delay margin code and the second delay margin code.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure provides a first user equipment (UE) and a second UE, and methods performed by the first UE and the second UE in a wireless communication system. The method performed by the first UE in the communication system includes transmitting, to the second UE, a first signalling for indicating information of a resource, or receiving, from the second UE, a second signalling for indicating the information of the resource; and on the resource, receiving a feedback signalling from the second UE.

Message faulting is an expensive problem for 5G and especially for 6G due to increased pathloss and network faulting. Current message correction procedures rely on bulky FEC codes or automatic retransmission requests, further burdening the network. Disclosed are methods for a receiver to recognize a faulted message, identify the faulted message elements, and determine the corrected value for each fault, thereby recovering the correct message without a retransmission. Autonomous error correction within a receiver can be performed without network assistance or standards because the receiver has enough data, in the form of the received waveforms and the included error-detection code (usually just 16 bits) to find the corrected version internally. Reduced dependence on retransmissions and multiple code transmissions will alleviate network crowding while preserving the desired reliability and latency goals of the recipient.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. According to various embodiments of the present disclosure, a method performed by an electronic device may comprise: acquiring a first channel measurement result, based on a channel bandwidth different from a channel bandwidth of a Bluetooth low energy (BLE), at a first point in time; identifying a first channel corresponding to the channel bandwidth of the BLE as a transmission channel on the first channel measurement result; determining the channel quality of the first channel on the channel measurement of the first channel; and maintaining the first channel as the transmission channel when the channel quality of the first channel is determined to be a category for a channel maintenance at a second point in time coming a predetermined period of time after the first point in time or changing a second channel different from the first channel to the transmission channel when the channel quality of the first channel is determined to be a category for a channel change.

The disclosed communication system includes a Dynamic Multiple Input / Multiple Output Transmitting System (DMTS) module and an Adaptive Forward Error Correction (FEC) module. The FEC module includes a transmit module for receiving a first packet and command from the DMTS module, generating parity checks for n first packets, and retransmitting the first packets, along with the parity checks, to the channel manager in the transmit direction. The FEC module also includes a receive module for receiving a second packet from the channel manager in the receive direction. The DMTS controls when parity checks are transmitted for a given flow. Parity checks may be transmitted across multiple channels, and the FEC module can be enabled or disabled for each traffic flow.

A communication method includes: sending a first sequence including P subsequences A to a first device, where the first sequence is used by the first device to count a first bit error rate (BER), and the subsequence A is constituted by one or more forward error correction (FEC) code blocks; and sending a second sequence including Q subsequences B to the first device, where the second sequence is used by the first device to count a second BER, the subsequence B is constituted by one or more FEC code blocks, a length of the second sequence is greater than or equal to a length of the first sequence, and P and Q are positive integers.

This invention provides a method and system for intelligent handover of 2M unframed dual-path protection based on redundancy check, relating to the field of communication technology. The method includes acquiring and aligning dual 2M unframed bitstreams, generating check results using cyclic redundancy check, statistically analyzing error feature vectors within a sliding time window, constructing a link quality trajectory, extracting quality degradation warning signals, constructing a phased handover strategy based on the warning signals, and determining the handover timing sequence and executing link handover using a neural network evaluator. This achieves adaptive optimization of the handover strategy, improving the intelligence and reliability of link handover.

The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4th generation (4G) communication system such as long-term evolution (LTE). Disclosed is a method performed by a terminal that may comprise: receiving configuration information for a CSI report from a base station; acquiring a channel quality indicator (CQI) table on the basis of the configuration information for the CSI report; and transmitting CSI including a CQI according to the CQI table to the base station, wherein the CQI table is configured on the basis of a first CQI table of a case where transport block error probability is 0.1 and a second CQI table for a case where transport block error probability is 0.00001. The method performed by the terminal may further comprise: receiving configuration information relating to a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH) from the base station; identifying a modulation and coding scheme (MCS) table on the basis of the configuration information relating to the PUSCH or PDSCH; and acquiring a transport block size (TBS) on the basis of the MCS table, wherein the MCS table is configured on the basis of a first MCS table configured by default and a second MCS table configured for low spectral efficiency (SE) in the base station.

A method comprising, by a transmitting entity: performing a first transmission over a communication channel, receiving, from a receiving entity, an indication of a channel quality for the communication channel, determining, based on the indication of the channel quality, a block error rate (BLER) floor for the communication channel, determining, based on the BLER floor, a number of bits for one or more hybrid automatic repeat request (HARQ) retransmissions associated with the first transmission, and performing, based on the determined number of bits for the one or more HARQ retransmissions, the HARQ retransmissions to the receiving entity.

Example methods and systems for adapting fourth generation (4G) and / or fifth generation (5G) cellular downlink channels in the presence of non-stationary interference are disclosed. An example method, implemented by one or more processors of a cellular base station, includes: receiving, from a user equipment (UE) radio, channel state information (CSI) for a cellular downlink channel between the cellular base station and the UE; determining a signal to interference and noise ratio (SINR) offset based upon the CSI, and a target block error rate (BLER); determining a variance of the SINR offset that represents one or more characteristics of the non-stationary interference; and determining the target BLER based upon the variance of the SINR offset such that the cellular downlink channel adapts to the presence of the non-stationary interference.

The application discloses a data transmission method, device and equipment and a storage medium, and belongs to the technical field of wireless communication. The data transmission method comprises the following steps: a terminal device acquires an error correction ratio of a PDU set; and whether to send remaining PDUs in the PDU set is determined according to first information of the sent PDUs in the PDU set and the error correction ratio, wherein the first information is reception information or the number of the sent PDUs in the PDU set. Through the transmission optimization of the data packets in the PDU set by using the error correction ratio of the PDU set, the air interface resource is saved or the correct transmission of the PDU set is ensured.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless receiver may receive a sequence of bits. The wireless receiver may determine a signal quality for a packet of the sequence of bits. The wireless receiver may apply a reduced state low power mode based at least in part on the signal quality being outside of a signal quality margin. Numerous other aspects are described.

In some implementations, a device may obtain information associated with one or more targets, wherein the information associated with the one or more targets includes sensing information and a communication performance control parameter. The device may determine a sensing beampattern based at least in part on the information associated with the one or more targets. The device may determine a target sensing autocorrelation matrix for the sensing beampattern. The device may identify a candidate sensing autocorrelation matrix for a joint communication and sensing transmission based at least in part on the target sensing autocorrelation matrix. The device may determine a target sensing precoder based at least in part on the candidate sensing autocorrelation matrix. The device may generate a joint communication and sensing precoder based at least in part on the target sensing precoder and the communication performance control parameter.

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method of a user equipment (UE) in a wireless communication system is provided. The method comprises: receiving, from a base station (BS), configuration information for a power control of a sidelink and a downlink reference signal (RS) to measure a downlink channel from the BS, wherein the sidelink is established between the UE and another UE; receiving, from the BS, the downlink RS based on the configuration information; calculating a first pathloss for the downlink channel between the UE and the BS based on the configuration information; identifying a second pathloss for the sidelink between the UE and the other UE; and transmitting, to the other UE, a physical sidelink shared channel (PSSCH) and a physical sidelink control channel (PSCCH) based on the first pathloss and the second pathloss.

The application discloses a method for analyzing bit error rate performance in a space modulation assisted affine frequency division multiplexing system; in the space modulation mode, information bits are mapped into constellation symbols and indexes of activated antennas, the system experiences a time-frequency double selective channel after affine frequency division multiplexing modulation, linear minimum mean square error equalization is performed on the affine Fourier transform domain received signal after affine frequency division multiplexing demodulation at the receiving end, then the equalized signal is grouped, maximum likelihood detection is performed on each carrier symbol to obtain estimated symbols and activated antenna indexes, and the estimated symbols and activated antenna indexes are demapped into bits; theoretical approximate closed expressions of error probabilities of transmitting symbol detection and activated antenna index detection are derived respectively, and the average bit error rate of the system is obtained; through simulation verification, the performance analysis method provided by the application can effectively measure the average bit error rate performance of the system.

An apparatus and method for a receiver configured to perform timing recovery decoupling feedforward equalizer (FFE) adaptation. The receiver apparatus may include an analog front-end (AFE) device coupled to a time-interleaving (TI) interface. The TI interface is coupled in a timing recovery feedback loop to an FFE equalizer, a digital signal processor (DSP), a delay-timing loop (DTL) device, and a clock device, with the clock device feeding back to the TI interface. The DSP has an additional path to the FFE equalizer, which in turn has an additional path to the DTL device. The DTL loop is equipped with an interleaving-specific enable / disable vector Q[1:N] that can enable / disable the contribution of specific time-interleaving errors to the timing recovery loop, allowing the FFE adaptation process to be decoupled from the timing recovery loop.

The embodiment of the application provides a decoding method and device, which are applied to a receiving end device, a control channel is established between the receiving end device and a sending end device, the decoding method comprises the following steps: receiving a demodulation reference signal sent by the sending end device through the control channel; estimating the channel quality of the control channel according to the demodulation reference signal; in the case that the channel quality of the control channel meets a first condition, selecting a first decoding algorithm; in the case that the channel quality of the control channel meets a second condition, selecting a second decoding algorithm; wherein the channel quality when the first condition is met is better than the channel quality when the second condition is met, the decoding delay of the first decoding algorithm is less than the decoding delay of the second decoding algorithm, and the decoding reliability of the first decoding algorithm is less than the decoding reliability of the second decoding algorithm, so that the decoding algorithm is adaptively selected according to the channel quality of the control channel, the decoding reliability is improved and the decoding delay is reduced, and the communication reliability is improved.

A method and apparatus for determining an outer loop value, a device, and a storage medium are disclosed. The method may include: determining a pre-trained outer loop initialization model based on current feature data of a user equipment (S11); and determining an initialized outer loop value of the user equipment based on a current air interface measurement value of the user equipment and the outer loop initialization model (S12).

The objective of the present disclosure is to perform quantum secure direct communication by using a time bin and polarization in a communication system. The method may comprise the steps of: acquiring system information; performing a random access procedure on the basis of the system information; generating a first signal; transmitting the first signal to a second device; receiving, from the second device, a second signal on which encoding has been performed using the first signal; and decoding the second signal.

The application discloses a semi-dynamic scheduling method based on time-varying frequency hopping. For DL SPS and UL CG services, a base station introduces a semi-dynamic scheduling mechanism, taking a Hopping Pattern four-tuple model as the core, to jointly control time domain, frequency domain, space domain and MCS. The base station predicts CSI, beams and QoS based on an AI / ML module, autonomously decides whether to update the Hopping Pattern, and can classify UEs with weak channel correlation into the same multicast group for unified distribution, to realize space division multiplexing and free hopping of intra-group UEs in a frequency domain resource pool. The Hopping Pattern is carried by a semi-dynamic scheduling SDS dedicated MAC CE, a bitmap is used to indicate the hopping dimension on demand, and the semi-dynamic scheduling overhead is reduced. After receiving the SDS dedicated MAC CE, a UE performs multi-dimensional resource hopping from a specified period, and uses the latest valid Hopping Pattern before receiving a new indication.

This application provides a data scrambling method, a data descrambling method, and a related device. The method in embodiments of this application includes: first, generating a raw data frame, where the raw data frame includes raw data and a PSB; next, generating a preload pattern of a scrambler based on a target bit, where the target bit is a part of bits in an SFC value corresponding to the raw data frame; and further, scrambling the raw data based on the preload pattern to obtain target data. In this application, the raw data is scrambled, so that bits 0 and bits 1 in the scrambled target data are more evenly distributed. This reduces a possibility that consecutive bits 0 or bits 1 appear in the target data, thereby reducing a bit error rate at a data receiving end.

The purpose of the present disclosure is to perform quantum secure direct communication by using a time bin and a phase in a communication system, and a method thereof may comprise the steps of: acquiring system information; performing a random access procedure on the basis of the system information; generating a first signal; transmitting the first signal to a second device; receiving, from the second device, a second signal on which encoding has been performed by using the first signal; and decoding the second signal.

This application discloses a computing system configured to measure a step response of a channel in an electronic device, determine a feedback voltage that a decision feedback equalizer adds to the channel in response to detecting inter-symbol interference in received symbols, and predict a signal integrity of the channel based, at least in part, on the step response of the channel and the feedback voltage. The computing system can utilize the predicted signal integrity to determine a probability that the feedback voltage added by the decision feedback equalizer to the channel was erroneous, and determine the signal integrity of the channel based, at least in part, on the step response of the channel, the feedback voltage, and the probability that the feedback voltage added by the decision feedback equalizer to the channel was erroneous.

A technique capable of improving accuracy of an amount of delay of a sampling clock is provided. A semiconductor device includes: a communication device for wired communication; a delay adder circuit capable of adjusting an amount of delay of a clock to be received or transmitted by the communication device; and a control circuit controlling the amount of delay of the delay adder circuit. The communication device is configured to set a reception period or a transmission period of a normal frame and a reception period or a transmission period of a check frame in time division, and to confirm timing margins of setup and hold between data and a clock in the reception period or the transmission period of the check frame. The control circuit is configured to set the amount of delay in the normal frame, based on a confirmation result of the timing margins.

A control plane (CP) device switching method includes that when a user plane (UP) device in a forwarding-control separation system detects that performance of communication between the UP device and an active CP device does not meet a normal communication condition, and performance of communication between the UP device and a standby CP device meets the normal communication condition, the UP device sends a switching request to the standby CP device. When detecting that a quantity of UP devices that each send the switching request is greater than or equal to a first quantity threshold, the standby CP device may indicate each UP device in the forwarding-control separation system to switch to the standby CP device.

This invention discloses a data correction and transmission method and apparatus. The method includes the following steps: At the transmitting end: receiving an input data unit to be transmitted at the input data unit rate, extracting valid input data segments; generating M identical copy data units based on the valid input data segments, where M is a configuration parameter greater than or equal to 2; transmitting the M copy data units at a rate K times the input data unit rate, where K is a configuration parameter greater than or equal to M, ensuring that the transmission of all M copy data units is completed within one input data unit cycle; At the receiving end: receiving copy data units at the same rate K times, extracting valid copy data segments, dividing the M valid copy data segments belonging to the same input data unit into the same copy data group; correcting and compensating the valid copy data segments within the copy data group according to preset rules to obtain valid output data segments; organizing the valid output data segments into output data units according to a preset format, and outputting them at the input data unit rate, maintaining timing consistency with the original input. This invention overcomes the shortcomings of existing technologies such as high transmission delay, high system cost, and poor real-time performance, meeting the requirements for highly reliable and continuous data transmission.