Patent ID: 11917043
Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC G  H

Claim 7:
8. The method according to claim 1, wherein the transmitting, by the first device, the audio data to the second device in the first slot comprises:
transmitting, by the first device, an identifier of a current data frame to the second device;
receiving, by the first device, listening information transmitted by the second device, wherein the listening information is used to indicate a receiving state of the second device for N data frames, the N data frames comprise the current data frame, and N−1 data frames that are positioned before the current data frame and are closest to the current data frame, the receiving state is a successful reception or a failed reception, and N is an integer greater than or equal to 1;
determining, by the first device, a data frame that is not listened by the second device based on the listening information; and
transmitting, by the first device, to the second device, the data frame that is not listened by the second device.