This disclosure discloses an information indication method, a terminal device, and a network device. The method includes determining a transmission feature parameter, where the transmission feature parameter is used to send a physical channel on a sidelink (SL), and the transmission feature parameter includes at least one of a subcarrier spacing (SCS), a cyclic prefix (CP), a bandwidth part (BWP), or a demodulation reference signal (DMRS) configuration parameter; and sending transmission feature information, where the transmission feature information is used to indicate the transmission feature parameter.

This disclosure discloses an information indication method, a terminal device, and a network device. The method includes determining a transmission feature parameter, where the transmission feature parameter is used to send a physical channel on a sidelink (SL), and the transmission feature parameter includes at least one of a subcarrier spacing (SCS), a cyclic prefix (CP), a bandwidth part (BWP), or a demodulation reference signal (DMRS) configuration parameter; and sending transmission feature information, where the transmission feature information is used to indicate the transmission feature parameter.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A downlink transmission method performed by user equipment and user equipment are provided. The downlink transmission method performed by the user equipment includes: receiving a predefined downlink signal in a predefined downlink resource, and performing ACK feedback according to the received downlink signal, thereby implementing the performing of downlink data transmission in an RRC idling or inactive state, or establishing RRC connection more rapidly.

The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A downlink transmission method performed by user equipment and user equipment are provided. The downlink transmission method performed by the user equipment includes: receiving a predefined downlink signal in a predefined downlink resource, and performing ACK feedback according to the received downlink signal, thereby implementing the performing of downlink data transmission in an RRC idling or inactive state, or establishing RRC connection more rapidly.

A method of indicating a synchronization signal block (SSB), a method of determining 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.

A method of indicating a synchronization signal block (SSB), a method of determining 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.

The present disclosure is related to a method and apparatus for DMRS transmission. According an embodiment of the disclosure, a method including determining at least one antenna port for a user equipment (UE); determining a demodulation reference signal (DMRS) resource for each of the at least one antenna port respectively; determining the number of symbols for carrying the determined DMRS resource in time domain; and indicating the determined DMRS resource of each of the at least one antenna port to the UE. Embodiments of the disclosure solve the technical problem of indicating DMRS resource and determining symbol/subcarriers for carrying the DMRS resource during DMRS transmission.

The present disclosure is related to a method and apparatus for DMRS transmission. According an embodiment of the disclosure, a method including determining at least one antenna port for a user equipment (UE); determining a demodulation reference signal (DMRS) resource for each of the at least one antenna port respectively; determining the number of symbols for carrying the determined DMRS resource in time domain; and indicating the determined DMRS resource of each of the at least one antenna port to the UE. Embodiments of the disclosure solve the technical problem of indicating DMRS resource and determining symbol/subcarriers for carrying the DMRS resource during DMRS transmission.

A channel and signal transmission method and communication device are provided. The channel and signal transmission method applied to a communication device at a sending end includes: when transmitting at least two data transmission resources, send the data transmission resources, according to at least one of QCL information of the data transmission resources and a preset rule, where a data transmission resource includes at least one of a signal and a channel.

Apparatuses, systems, and methods are disclosed for radio link monitoring (RLM) for unicast sidelink (SL) communications. A processor for a base station includes first circuitry configured to generate a radio resource control (RRC) message comprising an RRC information element indicating a number of unicast SL RLM reference signals. The processor includes second circuitry configured to encode the RRC message for transmission to a user equipment (UE). The processor includes third circuitry configured to generate a reference signal indicating an in-sync (IS) threshold and an out-of-sync (OOS) threshold for an RLM resource. The processor includes fourth circuitry configured to encode the reference signal for transmission to the UE. The processor includes fifth circuitry configured to transmit the RRC message and the reference signal to the UE.