Method and device for receiving downlink data during RRC inactive state

A method for confirming data transmission, wherein the method is applied to a base station, and comprises:

• sending downlink data to a terminal in a target state, wherein the target state is a state in which the terminal does not perform a radio resource control connection with the base station, and the terminal is allowed to receive the downlink data under the condition that the terminal does not perform state switching;
• receiving a target signaling including a detection result for indicating whether the terminal successfully receives the downlink data, wherein the target signaling is sent by the terminal through a preset resource, wherein the preset resource comprises a preset space resource, and wherein the target signaling comprises a terminal identifier and one signal value occupying exactly one bit in a target group signal value, and the target group signal value is a group signal value that matches the detection result determined in a preset signal value;
• and
• when determining that the terminal does not successfully receive the downlink data based on the target signaling, resending the downlink data to the terminal.

A device for receiving downlink data, including:

• a processor;
• and
• a memory for storing instructions executable by the processor;
• wherein the processor is configured to:
• when the device is in a target state and receives the downlink data sent by a base station, detect whether the downlink data is successfully received, and obtain a detection result, wherein the target state is a state in which the terminal does not perform a radio resource control connection with the base station, and the terminal is allowed to receive the downlink data under the condition that the terminal does not perform state switching;
• generate a target signaling for indicating the detection result;
• and
• send the target signaling to the base station, so that the base station resends the downlink data to the terminal when determining that the terminal does not successfully receive the downlink data in accordance with the target signaling,
• wherein the processor is further configured to:
• determine, in a preset signal value, a target group signal value that matches the detection result;
• obtain a terminal identifier of the terminal;
• and
• generate the target signaling including the terminal identifier and one signal value occupying exactly one bit in the target group signal value;
• wherein the processor is further configured to:
• send the target signaling to the base station by using a preset resource;
• wherein the preset resource comprises a preset space resource.

A device for receiving downlink data, including:

• a processor;
• and
• a memory for storing instructions executable by the processor;
• wherein the processor is configured to:
• send downlink data to a terminal in a target state, wherein the target state is a state in which the terminal does not perform a radio resource control connection with the base station, and the terminal is allowed to receive the downlink data under the condition that the terminal does not perform state switching;
• receive a target signaling including a detection result for indicating whether the terminal successfully receives the downlink data, wherein the target signaling is sent by the terminal through a preset resource, wherein the preset resource comprises a preset space resource, and wherein the target signaling comprises a terminal identifier and one signal value occupying exactly one bit in a target group signal value, and the target group signal value is a group signal value that matches the detection result determined in a preset signal value;
• and
• when determining that the terminal does not successfully receive the downlink data based on the target signaling, resend the downlink data to the terminal.