The present application provides a spatial layered transmission method and a spatial layered transmission device. The spatial layered transmission method includes steps of: dividing to-be-transmitted data into at least two layers of spatial data; determining a symbol rate for each layer of spatial data, to enable an error between SERs for the layers of spatial data to be smaller than a predetermined error threshold; and encoding each layer of spatial data in accordance with the determined symbol rate, and transmitting the encoded layer of spatial data.

An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.

Embodiments of the disclosure provide a transmission system, including: an encoder for encoding a set of information symbols into a set of encoded signals for transmission, wherein the encoder applies a full-diversity space-time block code (STBC) to the set of information symbols; and at least three antennas for transmitting the set of encoded signals over four epochs at a code rate of two.

Embodiments of the disclosure provide a transmission system, including: an encoder for encoding a set of information symbols into a set of encoded signals for transmission, wherein the encoder applies a full-diversity space-time block code (STBC) to the set of information symbols; and at least three antennas for transmitting the set of encoded signals over four epochs at a code rate of two.

A method for state control of a user equipment includes: when in an inactive state, sending, a state indication message for indicating that the UE needs to switch to a connection state, to a base station, upon detecting that a preset state switching event is triggered; switching to the connection state according to a state switching instruction returned by the base station. The preset state switching event includes at least one of: a bearer corresponding to traffic data to be sent or received by the UE does not belong to a designated bearer that is a bearer capable of transmitting the service data in the inactive state; a message to be sent by the UE is a NAS message; a data buffer size of the UE exceeds a first threshold; and an RSRP value of a reference signal sent by the base station is less than a second threshold.

The present application provides a spatial layered transmission method and a spatial layered transmission device. The spatial layered transmission method includes steps of: dividing to-be-transmitted data into at least two layers of spatial data; determining a symbol rate for each layer of spatial data, to enable an error between SERs for the layers of spatial data to be smaller than a predetermined error threshold; and encoding each layer of spatial data in accordance with the determined symbol rate, and transmitting the encoded layer of spatial data.

A method for state control of a user equipment includes: when in an inactive state, sending, a state indication message for indicating that the UE needs to switch to a connection state, to a base station, upon detecting that a preset state switching event is triggered; switching to the connection state according to a state switching instruction returned by the base station. The preset state switching event includes at least one of: a bearer corresponding to traffic data to be sent or received by the UE does not belong to a designated bearer that is a bearer capable of transmitting the service data in the inactive state; a message to be sent by the UE is a NAS message; a data buffer size of the UE exceeds a first threshold; and an RSRP value of a reference signal sent by the base station is less than a second threshold.

This application discloses a coding method and apparatus and a readable storage medium. The method includes: performing coding by a coding end through a DSTBC scheme, an NSTBC codebook, and a power sum of transmit symbols on a transmit antenna in previous two symbol periods to obtain a transmit symbol for a current symbol period; and determining, by the coding end, a transmit symbol for a symbol period next to the current symbol period based on the transmit symbol for the current symbol period and the NSTBC codebook, where the previous two symbol periods are two adjacent symbol periods preceding the current symbol period.

An adaptable orthogonal frequency-division multiplexing system (OFDM) that uses a multiple input multiple output (MIMO) to having OFDM signals transmitted either in accordance with time diversity to reducing signal fading or in accordance with spatial diversity to increase the data rate. Sub-carriers are classified for spatial diversity transmission or for time diversity transmission based on the result of a comparison between threshold values and at least one of three criteria. The criteria includes a calculation of a smallest eigen value of a frequency channel response matrix and a smallest element of a diagonal of the matrix and a ratio of the largest and smallest eigen values of the matrix.

A method for transmitting data in a multiple input multiple output (MIMO) wireless communication system is disclosed. The method for transmitting a signal to a receiver by a transmitter in a multiple input multiple output (MIMO) wireless communication system includes: generating a bit stream having the size of specific bits through channel coding of data; dividing the bit stream into a first bit stream having a first bit size and a second bit stream having a second bit size; allocating the second bit stream having the second bit size to an antenna sequence codeword on the basis of a signal transmission time; and transmitting the first bit stream having the first bit size to the receiver according to an order of antenna pairs indicated by the allocated antenna sequence codeword.