Data transmission method, transmitter, receiver and storage medium

A data transmission method, comprising:

• receiving, by a receiver, a transmission signal transmitted by at least one transmitter, and extracting a bit sequence B based on a transmission signal of each transmitter;
• and
• determining, based on a reconstruction signal of the bit sequence B corresponding to the each transmitter, feedback information for the each transmitter, and transmitting the feedback information for the each transmitter;
• wherein
• the feedback information at least comprises terminal identification information, uplink synchronization alignment timing advance (TA) information, and a temporary identifier allocated to a terminal in a cell after contention resolution;
• or at least comprises the terminal identification information, the uplink synchronization alignment TA information, the temporary identifier allocated to the terminal in the cell after the contention resolution, and an uplink grant used for subsequent data allocation by the transmitter;
• or at least comprises the terminal identification information and an acknowledgement (ACK)/negative acknowledgement (NACK);
• or at least comprises the terminal identification information, the ACK/NACK, the temporary identifier allocated to the terminal in the cell after the contention resolution, and the uplink grant used for the subsequent data allocation by the transmitter.

A transmitter, comprising:

• a first processing unit, which is configured to generate a transmission signal based on transmission information;
• wherein the transmission information at least comprises terminal identification information;
• or at least comprises the terminal identification information and signaling information;
• or at least comprises the terminal identification information and data information;
• or at least comprises the terminal identification information, the data information and the signaling information;
• or at least comprises the terminal identification information and cell identification information;
• or at least comprises the terminal identification information, the cell identification information and the signaling information;
• or at least comprises the terminal identification information, the cell identification information and the data information;
• or at least comprises the terminal identification information, the cell identification information, the data information and the signaling information;
• and
• a first sending unit, which is configured to modulate, through a carrier modulation, the transmission signal to a target time-frequency resource for transmission;
• wherein
• a process of generating the transmission signal based on the transmission information comprises a symbol spreading process, and a spreading sequence used in the symbol spreading process is determined based on the transmission information or is jointly determined based on the transmission information and system parameter information associated with a transmission process.

A receiver, comprising:

• a first receiving unit, which is configured to receive a transmission signal transmitted by at least one transmitter;
• a second processing unit, which is configured to extract a bit sequence B based on a transmission signal of each transmitter, and determine feedback information for the each transmitter based on a reconstruction signal of the bit sequence B corresponding to the each transmitter;
• and
• a second sending unit, which is configured to transmit the feedback information for the each transmitter;
• wherein the feedback information at least comprises terminal identification information, uplink synchronization alignment timing advance (TA) information, and a temporary identifier allocated to a terminal in a cell after contention resolution;
• or at least comprises the terminal identification information, the uplink synchronization alignment TA information, the temporary identifier allocated to the terminal in the cell after the contention resolution, and an uplink grant used for subsequent data allocation by the transmitter;
• or at least comprises the terminal identification information and an acknowledgement (ACK)/negative acknowledgement (NACK);
• or at least comprises the terminal identification information, the ACK/NACK, the temporary identifier allocated to the terminal in the cell after the contention resolution, and the uplink grant used for the subsequent data allocation by the transmitter.