Techniques and apparatuses described herein permit selective multiplexing of synchronization signal blocks (SSBs), inside of or outside of an SSB measurement timing configuration (SMTC) window, and downlink channel communications depending on one or more factors, which may increase spectral efficiency due to multiplexing when permitted, and may prevent or reduce collisions and interference when not permitted (e.g., due to quasi co-location constraints, processing constraints, timeline constraints, and/or the like).

A data processing device includes a first circuit and a second circuit. The first circuit includes a first front-end circuit configured to process first data to obtain first demodulated data, and a back-end circuit coupled to the first front-end circuit and configured to receive the first demodulated data. The second circuit includes a second front-end circuit configured to process second data to obtain second demodulated data, and a transmitter coupled to the second front-end circuit and configured to transmit the second demodulated data to the first circuit. The back-end circuit is further configured to receive the second demodulated data, and process the first demodulated data and the second demodulated data.

A receiver performing a half cyclic prefix (CP) shift on received subframes is disclosed, comprising: an analog to digital conversion (ADC) module; a cyclic prefix (CP) removal module coupled to the ADC module configured to retain a portion of cyclic prefix samples; a fast Fourier transform (FFT) module configured to receive samples from the cyclic prefix removal module, and to perform a FFT procedure on the received samples using a FFT window, the FFT window being shifted ahead based on the retained portion of cyclic prefix samples, to output an orthogonal frequency division multiplexed (OFDM) symbol; and a rotation compensation module coupled to the FFT module, the rotation compensation module configured to perform phase de-rotation of the OFDM symbol.

Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and relevant device. The generated preamble symbol contains: a time-domain symbol with a first three-segment structure; or a time-domain symbol with a second three-segment structure; or a free combination of several time-domain symbols with the first three-segment structure and/or several time-domain symbols with the second three-segment structure arranged in any order. Using the entirety or a portion of a certain length of a time-domain main body signal as a prefix, it is possible to perform coherent detection, which solves the issues of performance degradation with non-coherent detection and differential decoding failure under complex frequency selective fading channels, and generating a postfix or hyper prefix based on the truncation of the entirety or a portion of the time-domain main body signal would enable the generated preamble symbol to have sound fractional frequency offset estimation performance and timing synchronization performance.

Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and relevant device. The generated preamble symbol contains: a time-domain symbol with a first three-segment structure; or a time-domain symbol with a second three-segment structure; or a free combination of several time-domain symbols with the first three-segment structure and/or several time-domain symbols with the second three-segment structure arranged in any order. Using the entirety or a portion of a certain length of a time-domain main body signal as a prefix, it is possible to perform coherent detection, which solves the issues of performance degradation with non-coherent detection and differential decoding failure under complex frequency selective fading channels, and generating a postfix or hyper prefix based on the truncation of the entirety or a portion of the time-domain main body signal would enable the generated preamble symbol to have sound fractional frequency offset estimation performance and timing synchronization performance.

Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and relevant device. The generated preamble symbol contains: a time-domain symbol with a first three-segment structure; or a time-domain symbol with a second three-segment structure; or a free combination of several time-domain symbols with the first three-segment structure and/or several time-domain symbols with the second three-segment structure arranged in any order. Using the entirety or a portion of a certain length of a time-domain main body signal as a prefix, it is possible to perform coherent detection, which solves the issues of performance degradation with non-coherent detection and differential decoding failure under complex frequency selective fading channels, and generating a postfix or hyper prefix based on the truncation of the entirety or a portion of the time-domain main body signal would enable the generated preamble symbol to have sound fractional frequency offset estimation performance and timing synchronization performance.

Provided are a preamble symbol generation method and receiving method, and a relevant frequency-domain symbol generation method and relevant device. The generated preamble symbol contains: a time-domain symbol with a first three-segment structure; or a time-domain symbol with a second three-segment structure; or a free combination of several time-domain symbols with the first three-segment structure and/or several time-domain symbols with the second three-segment structure arranged in any order. Using the entirety or a portion of a certain length of a time-domain main body signal as a prefix, it is possible to perform coherent detection, which solves the issues of performance degradation with non-coherent detection and differential decoding failure under complex frequency selective fading channels, and generating a postfix or hyper prefix based on the truncation of the entirety or a portion of the time-domain main body signal would enable the generated preamble symbol to have sound fractional frequency offset estimation performance and timing synchronization performance.

Presented in the present specification is a method for a receiving terminal supporting a sidelink. The receiving terminal according to the present specification acquires a synchronization for setting a symbol boundary, applies the same symbol boundary for a plurality of receiving signals, and can set a receiving window on the basis of the symbol boundary. The receiving terminal can acquire a propagation delay applied to a plurality of wireless signals through a first wireless signal among the plurality of wireless signals, and can adjust a starting time of the receiving window for decoding a second wireless signal through the propagation delay or can feed back information related to a transmission timing to a transmission device for transmitting the second wireless signal. Therefore, an efficient decoding technique for a second wireless signal having a characteristic newer than that of a conventional technique is presented.

Disclosed are a method of configuring symbols and a device using the same. Through the use of a symbol configuration parameter B which includes K values corresponding to different symbol intervals or symbol numbers respectively, a symbol interval and a number of symbols in a subframe may be configured according to the symbol configuration parameter B. K is an integer greater than 1.

A timing synchronization method performed in a terminal may comprise receiving information on a common delay of a service link between the terminal and a base station from the base station; transmitting a physical random access channel (PRACH) preamble to the base station by reflecting the common delay with respect to a random access channel (RACH) occasion associated with a synchronization signal/physical broadcast channel (SS/PBCH) block received from the base station; receiving a first random access response (RAR) including a timing adjustment value reflecting a differential delay between the terminal and the base station from the base station; and performing uplink transmission to the base station by reflecting the common delay and the timing adjustment value.