摘要:
A signal detection method and a signal detection device are provided. The signal detection method includes steps of: performing channel estimation based on a signal received by each of antennae, to acquire a channel estimation matrix for transmitters multiplexing on identical time-frequency resources on each of the antennae; determining an equivalent Pattern Division Multiple Access (PDMA) channel estimation matrix for each of the antennae based on a PDMA encoding matrix, and acquiring an equivalent multi-antenna PDMA channel estimation matrix for all the antennae based on the equivalent PDMA channel estimation matrix for each of the antennae; performing a joint detection based on the equivalent multi-antenna PDMA channel estimation matrix, an equivalent multi-antenna received signal vector and a set of constellation points of the transmitters multiplexing on the identical time-frequency resources, to acquire Log Likelihood Ratios (LLRs) for the transmitters; and decoding the LLRs for the transmitters, to acquire multi-user information at transmitting end.
摘要:
A system information configuration method and device are provided, related to the field of communications. The method includes: determining, based on a target parameter which is predetermined, a frequency offset configuration parameter of a Remaining Minimum System Information (RMSI) Control Resource Set (CORESET) with respect to a System Synchronization Block (SSB), where the target parameter includes one or more of a channel bandwidth parameter, a Subcarrier Spacing (SCS) parameter of RMSI, an SCS parameter of SSB, a System Synchronization (SS) Raster parameter, and a RMSI CORESET bandwidth parameter; and performing a frequency offset configuration of the RMSI CORESET with respect to the SSB according to the frequency offset configuration parameter.
摘要:
The present application discloses an association method, instruction method, and device for a synchronization block and a paging-scheduling signaling message. In the present application, a terminal performs beam sweeping on received synchronization blocks to obtain a target synchronization block; and the terminal, according to a correspondence between a synchronization block and a paging-scheduling signaling message, determines a paging-scheduling signaling message corresponding to the target synchronization block.
摘要:
A method and device for sending and receiving a preamble sequence of a physical random access channel, comprising: scrambling a preamble subsequence and then sending, the preamble subsequence being scrambled according to a cyclic shift value of a preamble subsequence sent in the previous stage; performing a descrambling operation according to a cyclic shift value of a preamble subsequence received in the previous stage during reception; and determining that a preamble subsequence detected after the descrambling operation is a preamble subsequence received in this stage and belonging to the same preamble sequence as the preamble subsequence received in the previous stage. By means of the present invention, the fuzzy problem of the M-order preamble sequence solution of the next-generation wireless communication physical random access channel that multiple users select the same time-frequency resource sending condition can be solved, so as to effectively guarantee the reliability and performance of the preamble sequence solution.
摘要:
The embodiments of the present application relate to the technical field of wireless communications, and in particular to a method and device for detecting data transmission and received signals, which are used for solving the problem in the prior art that it is disadvantageous for signal detection due to the fact that when a receiving end is detected in the scenario that each column of an encoding matrix of PDMA corresponds to one layer of data stream, multiple layers of data modulation symbols are superposed. The embodiments of the present application adjust various layers of data modulation symbols modulated by an initial modulation constellation diagram according to a modulation constellation rotating factor corresponding to various layers of data modulation symbols, so that the modulation constellation diagrams corresponding to various layers of data modulation symbols are not superposed, thereby preventing the problem of being disadvantageous for signal detection of a receiving end due to the fact that multiple layers of data modulation symbols are superposed in the scenario that each column of the encoding matrix of PDMA corresponds to one layer of data stream; and further improving the system performance.
摘要:
Embodiments of the present invention relate to the field of wireless communications, for use in optimizing a data compression solution. Disclosed are a method and device for data compression, transmission, and decompression. In the present method, data-to-be-transmitted is grouped by a transmitting end, and for each group: a shift factor is determined on the basis of the most significant bit of sample data of the greatest value in the group when a sign bit is removed, data bits of the sample data in the group are leftward shifted on the basis of the shift factor; the leftward shifted sample data respectively are quantified, thus making the bit number of the quantified sample data to be equal to a target bit number for compression; the shift factor and the quantified sample data are transmitted to a receiving end, the sample data respectively are dequantified, data bits in the dequantified sample data are rightward shifted respectively on the basis of the shift factor, and decompressed sample data is acquired. Employment of the present application optimizes data compression performance.
摘要:
A signal processing method and apparatus, a device, and a computer readable storage medium are provided, which relate to the field of communication technology, to reduce collisions of physical broadcast channel (PBCH) demodulation reference signals (DMRSs). The signal processing method provided by embodiments of the present disclosure includes: generating a plurality of candidate PBCH DMRS sequences; acquiring a mapping relationship between PBCH DMRS sequences and resource element (RE) groups; and transmitting the candidate PBCH DMRS sequences by using RE groups corresponding to the candidate PBCH DMRS sequences according to the mapping relationship. Therefore, the embodiments of the present disclosure may reduce collisions of PBCH DMRSs.
摘要:
Disclosed in the present application are a radio link monitoring method and apparatus, the method comprising: when a UE performs radio link monitoring, the UE monitors a downlink signal of a primary serving cell to obtain monitoring results; and the UE compares the monitoring results with an required synchronization threshold to determine whether the UE is in a synchronized state; the synchronization threshold is determined on the basis of preset parameters. The present invention solves the problems in the prior art of the complexity of defining RLM performance requirements, and being unable to provide the needed flexibility for supporting different specific systems by means of adjusting thresholds.
摘要:
A method of indicating a synchronization signal block (SSB), a method of determining an SSB, an apparatus of indicating an SSB, an apparatus of determining an SSB, a base station, user equipment (UE) and a computer readable storage medium are provided. The method of indicating an SSB includes: determining a target pattern from a plurality of patterns and acquiring serial number information corresponding to the SSB based on the target pattern; determining, according to the serial number information corresponding to the SSB, position indication information in an indication signaling for indicating a corresponding position of the SSB; and transmitting the position indication information to UE.