Patent ID: 11917543
Assignee: MEDIATEK SINGAPORE PTE. LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 13:
14. A communication device comprising:
a transceiver configured to establish a communication connection with a second device; and
a processor coupled to the transceiver and configured to perform operations comprising:
entering a sniff mode;
starting to transmit a data packet to the second device in an even time slot of a sniff interval through the transceiver or starting to transmit the data packet to the second device in an odd time slot of the sniff interval through the transceiver,
wherein the transmission duration of the data packet is longer than or equal to two time slots, and the sniff interval comprises a sniff wake-up window, and the anchor point of the sniff interval is the beginning of the sniff wake-up window,
receiving a response message from the second device; and
re-transmitting the data packet in the sniff wake-up window when the response message indicates that the data packet has not been received successfully.