164results about "Transmitter specific arrangements" patented technology

The invention relates to a method for performing a link adaptation in an uplink transmission between a user equipment, UE, and a network node in a telecommunication network, the method comprising:obtaining a first value of a Modulation and Coding Scheme, MCS, for a future transmission at transmission time interval k in the uplink transmission, the first value of MCS being determined on the basis of a Signal to Interference and Noise Ratio, SINR, estimated by the network node for the future transmission at transmission time interval k; andpredicting a second value of the MCS for the future transmission at transmission time k by using a Q-learning process having as input the first value of MCS, first data indicating whether the future transmission at transmission time k is a first transmission or a retransmission, and second data indicating whether a feedback acknowledgement, ACK / NACK, of a transmission that took place at transmission time interval k−1 is equal to ACK or NACK.

The invention discloses a chirp interval modulation backscatter communication method and a chirp interval modulation backscatter communication system based on variable-length scrambling codes, which mainly solve the problems of high power consumption of backscatter labels and high system deployment cost in the prior art. According to the scheme, a sending end sends an environment LoRa signal; the backscattering label modulates information to be sent to an environment LoRa signal in a time interval modulation mode, and modulates a variable-length scrambling code to an anchor symbol; a receiving end performs frequency shift compensation on the backscattering signal by adopting a frequency shift compensation method, demodulates the backscattering signal by combining a sliding window with a variable-length scrambling code, intercepts a backscattering signal sample through the sliding window, and performs de-spreading and fast Fourier transform (FFT) on the signal in the window; the position of an anchor symbol is determined by detecting the maximum value of an FFT peak value, information sent by the backscattering label is recovered from the position of the anchor symbol, and data demodulation is completed. On the premise of keeping demodulation reliability, the power consumption of the tag is effectively reduced, the deployment cost of a backscatter communication system is reduced, and the method can be used for ultra-low power consumption Internet of Things communication.

Vehicle (100), comprising: a sending control unit (110-T) configured to send a message; a receiving control unit (110-R) configured to receive the message; one or more switches (120) configured to forward the message from the sending control unit (110-T) to the receiving control unit (110-R), wherein the sending control unit (110-T) and each of the one or more switches (120) include an output port for transmitting the message; and a processor configured to perform limited timing analysis to determine a total wait time w k during the transmission of the message from the sending control unit (110-T) to the receiving control unit (110-R) as a sum of all output port wait times w i,jto determine at all outgoing ports to which the message encounters, taking measures to avoid or mitigate the total waiting time w k during transmission a time limit for the message is exceeded, and the limited timing analysis includes performing an iterative process and determining a lower bound (LB), an upper bound (UB), and a median value.

The invention relates to an auxiliary information reporting method and system, a terminal and a computer readable storage medium. The auxiliary information reporting method comprises the steps that auxiliary information is reported to network side equipment based on a control element MAC-CE of a media access control layer, the auxiliary information is used for reference of uplink waveform switching of the network side equipment, and the auxiliary information comprises power related information. The terminal disclosed by the invention can report the terminal auxiliary information to the network in real time, so that the network equipment correctly schedules the waveform of the PUSCH, thereby ensuring the uplink transmission performance and improving the network coverage capability.

The application discloses a processing method and device for encoding and decoding. A sending end obtains basic parameters of an RM code and a plurality of information bits to be processed, determines a bit index set according to a predefined superposition ratio, a superposition mode and the basic parameters, encodes the plurality of information bits to be processed according to a preset encoding mode and the bit index set, and obtains a coded codeword. The preset encoding mode is determined by a Plotkin recursive structure or a corresponding generating matrix of a preset partial superposition. The coded codeword is modulated, the modulated signal is sent to a receiving end through a channel, so that the receiving end performs channel decoding on demodulated information through a preset decoding algorithm and outputs.

In the method, apparatus, device, and storage medium for processing CSI according to the present disclosure, when a terminal receives a CSI feedback instruction from a network device, the terminal sends first feedback information to the network device, thereby informing the network device of a current CSI feedback situation through the first feedback information, and the network device obtains CSI using a differentiation method based on the first feedback information, further improving the reliability of the CSI feedback and ensuring the transmission performance of the system.

The application provides a data transmission method and device, a transmitter, a receiver and a storage medium. The method determines a resource unit quantity N and corresponding N resource units, N being an integer greater than or equal to 1; obtains M data blocks to be transmitted, M being an integer greater than or equal to 1, wherein each data block contains information for indicating the resource unit quantity N and the position of at least one resource unit in the N resource units; and transmits the M data blocks on the N resource units.

The application relates to a satellite communication transmission method and device. The method of the application is applied to a sending end and comprises the following steps: encoding source data, and framing the coded output data based on an agreed subframe structure; performing symbol mapping processing on the framed output subframes to generate a first baseband signal; performing pulse shaping processing to obtain a second baseband signal; performing up-conversion and digital-to-analog conversion processing on the baseband signal to obtain an analog signal meeting the emission frequency point requirement and the sampling rate requirement, and performing emission; the subframe structure comprises a frame header synchronization sequence, a characteristic sequence used for carrying modulation mode information and coding mode information, a data load sequence and a frame tail synchronization sequence; the frame header synchronization sequence, the characteristic sequence, the data load sequence and the frame tail synchronization sequence are arranged in sequence, and the end of each sequence is sequentially inserted with a symbol pilot, and each symbol pilot constitutes a unique word sequence used for realizing a preset function. The application is beneficial to improving communication stability.

This electronic device comprises one or more processors comprising processing circuitry and a memory storing instructions. The instructions, when executed individually or collectively by the one or more processors, cause the electronic device to perform the operations of: transmitting a plurality of uplink data packets encoded by a codec on the basis of a first bit rate, during a first time duration; identify the number of first retransmission uplink data packets having a first retransmission count, which is greater than or equal to a first retransmission threshold value, from among the plurality of first uplink data packets; and adjust a bit rate of the codec from the first bit rate to a second bit rate, on the basis of the number of first retransmission uplink data packets.

The present application relates to the technical field of communications, and discloses a signal transmission method and apparatus, and a device. The signal transmission method in the embodiments of the present application comprises: a first device generates a target signal on the basis of a bit sequence corresponding to a target information bit group, wherein the target signal is used for transmitting data and is a signal corresponding to a redundancy version, the target information bit group is all or some of N information bit groups obtained by grouping an information bit set, and the N information bit groups are respectively encoded by using N code rates, N being an integer greater than 1; and the first device sends the target signal.

This application discloses a joint source-channel encoding method and an information exchange method that are used during wireless data transmission. In the method, through information exchange between an access network, a core network, and a server, the access network can perform joint source-channel encoding on service data, and the access network can further jointly optimize a source-channel encoding parameter with reference to a channel condition, to adapt to different channel conditions of a terminal in real time, so that transmission efficiency of data during wireless transmission is high.

The application discloses a kind of two-way authentication and dynamic packet format transmission method and system based on preset domain: data exchange transceiver subsystem initiates to establish data transmission channel request;Data exchange transceiver subsystem obtains noise data from gate guard type gateway device;Data exchange transceiver subsystem calculates the hash value of noise data, obtains data transmission strategy hash value in preset domain with low 8bit as address, and sends gate guard type gateway device;Gate guard type gateway device calculates the hash value of noise data, obtains data transmission strategy hash value in local preset domain with low 8bit as address;Gate guard type gateway device compares two hash values, if consistent, establishes data transmission channel, otherwise, does not establish data transmission channel;System includes data sending PC end and data receiving PC end with built-in data exchange transceiver subsystem and gate guard type gateway device, and data transmission channel is established between the three according to the above method.

The application discloses an information transmission method and device based on adaptive coding, and the method comprises the following steps: generating a probe information sequence; sending the probe information sequence from a sending end to a receiving end through a transmission channel; receiving a receiving information sequence by the receiving end; performing feature estimation processing on the probe information sequence and the receiving information sequence to obtain a channel estimation matrix, channel time-varying feature information and dimension information; and performing information transmission processing on the sending information by using the channel estimation matrix, the channel time-varying feature information and the dimension information. The application realizes high-reliable data communication in complex time-varying multi-type wireless communication scenes.

This application discloses a communication method and apparatus, and relates to the communication field, to resolve a problem of how to flexibly configure a DMRS pattern. The method includes: determining, by a terminal device, at least one parameter based on first MCS information after receiving the first MCS information, where the at least one parameter is used to indicate a first reference signal pattern, so that the terminal device sends an uplink reference signal based on the first reference signal pattern; and determining, by a network device, the at least one parameter based on the first MCS information, where the at least one parameter is used to indicate the first reference signal pattern, so that the network device receives the uplink reference signal based on the first reference signal pattern.

This invention discloses a high-speed communication link transmitter modeling method based on a Transformer decoder. This method parameterizes the input signal and establishes a deep learning model with an encoder-decoder architecture, including a non-sequential encoder and a Transformer sequential decoder, to predict the output signal of the transmitter given the input signal. The encoder processes the input signal parameters, generates a context vector, and then passes it to the decoder. The decoder uses the context vector and the transmitter output signal sequence to generate a class probability distribution for each point in the sequence. The model is trained using a random masking strategy and employs non-autoregressive decoding and filtering techniques for inference, achieving parallel output sequence prediction. The final output is obtained through a single signal filtering step. Compared with traditional simulation techniques, this method significantly improves simulation speed while maintaining a very small error.

A receiving device is disclosed that receives a non-EHT PPDU that includes a service field and that is sent by a sending device, where the service field includes a first field whose bit quantity is m, and m≥1; and the receiving device determines, based on the first field, an initialization state of a scrambling code sequence corresponding to an extremely-high throughput physical layer protocol data unit EHT PPDU, where a bit quantity of the initialization state of the scrambling code sequence is greater than the bit quantity of the first field.

The invention provides a non-cooperative measurement and control signal parameter identification and analysis method and device and related equipment, and the method comprises the steps: carrying out the modulation identification and demodulation of a non-cooperative measurement and control signal, and obtaining a demodulation bit stream; decoding the demodulated bit stream to obtain a decoded bit stream; the decoding bit stream is analyzed according to a frame structure of a CCSDS specification, a plurality of transmission frame identifiers are obtained, and each transmission frame identifier at least comprises a spacecraft identifier and a virtual channel identifier; and obtaining the APID data in the decoding bit stream based on each transmission frame identifier and a packet header structure of the CCSDS specification. By applying the method provided by the invention, the non-cooperative measurement and control signal can be automatically debugged and analyzed, and the operation and maintenance cost is reduced.

Embodiments of this application provide a data transmission method for an interface and a communication apparatus, and relate to the field of communication technologies, to improve bandwidth utilization of the interface. In this application, when a plurality of consecutive first data units are transmitted between interfaces, each first data unit in at least one first data unit includes n first data bits and a first bit, where n is an integer greater than or equal to 1. The first bit is located after the n first data bits in time domain, and a value of the first bit is opposite to a value of an nth first data bit in the n first data bits. Embodiments of this application are used for a data transmission between interfaces.

Selecting a control channel set in a communication system involves monitoring received signals to identify a plurality of nodes of interest (NOI) and determining Eb / N0 values for a plurality of control channels. For this purpose, a data metric and spectral data can be provided to the communication device by the respective NOI for which Eb / N0 values are being determined. A comparison is made of the Eb / N0 values for all NOI to select an optimal control channel set. The optimal control channel set is then used by the communication device to transmit the control channel information to the plurality of NOI.

The embodiment of the invention discloses a data transmission method, device and system. The method comprises: acquiring a data frame comprising a plurality of subframes, the subframes comprising 226 pilot symbols in one polarization direction, the 226 pilot symbols being generated by a target polynomial and a seed, the target polynomial being x11 + x10 + x9 + x7 + 1; and sending the data frame. The super-frame architecture provided by the embodiment of the invention is relatively low in frame redundancy, and relatively good in sequence self-correlation and cross-correlation characteristics of the pilot symbols, so that the recovery signal of a receiving end is improved, and the quality of the recovered signal is improved.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Method and apparatuses for predicting channel state information (CSI) feedback in cellular systems. A method for a user equipment (UE) to report CSI includes receiving first information related to monitoring a performance of a machine learning (ML) model for predicting CSI, second information related to transmitting a performance monitoring report, third information related to reception of CSI reference signals (CSI-RSs) for determining a ground-truth CSI on a cell, and the CSI-RSs based on the third information. The method further includes determining the ground-truth CSI based on the reception of the CSI-RSs and a performance monitoring report for the ML model based on the first information and the ground-truth CSI. The method further includes transmitting a channel with the performance monitoring report based on the second information.

The present disclosure herein relates to methods and apparatuses for CSI reporting. A method performed by a wireless device (800) the method comprises: receiving (501), from a network node or another wireless device a CSI report configuration, performing (502) measurement(s) of one or more downlink reference signal resource(s) provided by the CSI report configuration, determining (503) an encoded channel state information, CSI, using at least said measurement(s), determining (504) a decoded CSI corresponding to said encoded CSI, determining (505) at least one CQI value calculated using said decoded CSI, and transmitting (506) to the network node or to said another wireless device, a CSI report comprising said at least one CQI value. There are also described methods performed by the wireless device (800), and also methods performed by a network node (1200).

A method for processing a data packet in wireless communication is provided. The method includes: storing a plurality of bit sequences of non-uniform Hamming distance from one another, the plurality of bit sequences each corresponding to a respective set of modulation rate and coding scheme for transmitting a set of modulated data; receiving a set of information bits corresponding to a first part of the set of modulated data, the set of information bits indicating a modulation rate and a coding scheme of a second part of the set of modulated data; and mapping the modulation rate and coding scheme of the second part of the set of modulated data to one of the plurality of bit sequences. The method also includes transmitting a mapped bit sequence as the first part of the set of modulated data.

This application provides a reference signal sending method and receiving method and an apparatus. A terminal device generates a frame. The frame includes data and a plurality of reference signals, and a difference between start positions of two adjacent reference signals is associated with a maximum sampling clock offset allowed by the terminal device. According to the method, a performance loss caused by a sampling clock offset introduced by a low-precision ring oscillator can be reduced, and receiving performance of a receiving device can be improved.

This application provides a reference signal sending method and receiving method and an apparatus. A terminal device generates a frame. The frame includes data and a plurality of reference signals, and a difference between start positions of two adjacent reference signals is associated with a maximum sampling clock offset allowed by the terminal device. According to the method, a performance loss caused by a sampling clock offset introduced by a low-precision ring oscillator can be reduced, and receiving performance of a receiving device can be improved.

Systems and methods to transmit data over multiple communication channels in parallel with forward error correction. Original packets are evenly distributed to the channels as the initial systematically channel-encoded packets. Subsequent channel-encoded packets are configured to be linearly independent of their base sets of channel-encoded packets, where a base set for a subsequent channel-encoded packet includes those scheduled to be transmitted before the subsequent packet in the same channel as the subsequent packet, and optionally one or more initial packets from other channels. The compositions of the sequences of the encoded packets can be predetermined without the content of the packets; and the channel-encoded packets can be generated from the original packets on-the-fly by the transmitters of the channels during transmission. When a sufficient number of packets have been received via the channels, a recipient may terminate their transmissions.

The application relates to a mixed network coding and decoding technology, and discloses a low-complexity coding and decoding method, device and equipment for an SCMA-D2D network, which comprises the following steps: generating a connection factor matrix according to user information of SCMA cellular users and D2D users and spectrum resource blocks, and generating a connection factor graph according to the connection factor matrix; constructing a code word generator according to the connection factor graph, and calculating code words corresponding to the user information by using the code word generator; generating mixed network signal data according to the code words corresponding to the user information and the spectrum resource blocks; inputting the mixed network signal data after being transmitted through a Gaussian channel into a relay network to obtain relay signal data, and broadcasting the relay signal data to receiving ends corresponding to the SCMA cellular users and the D2D users; and after the relay signal data is received at the receiving ends, decoding the relay signal data by using a multi-user classification decoder to obtain decoding information. The application can improve the precision of multi-user decoding and reduce the complexity of coding and decoding.

Systems and method for encoding and decoding ultra-wide band (UWB) communication signals, wherein encoding includes block interleaving at either bit-level or symbol-level following convolutional encoding, and wherein decoding includes block de-interleaving UWB symbols or log-likelihood ratios (LLRs) prior to convolutional decoding. Decoding may further include detecting and nulling (or lowering) outlier UWB symbols or LLRs determined to be affected by interference, prior to block de-interleaving.