WIRELESS COMMUNICATION DEVICE

摘要

Provided is a wireless communication device for packet communication. When power is applied, in a case where a packet data is received before receiving a message notifying that packet communication starts, the other party is urged to transmit a message saying that the packet communication starts and a packet number is initialized in accordance with transmission and reception of the message that the packet communication starts.

主权项

1. A wireless communication device that receives a data packet including a packet number from the other communication party, the wireless communication device comprising:
a storage unit in which the packet number is stored; a control unit; and a wireless communication unit that transmits and receives the data packet based on control of the control unit, wherein when power is applied, the control unit rewrites a packet number that is stored in the storage unit, as an initial value that is determined in advance, and checks whether or not a packet number that is included in the data packet from the other communication party is consistent with the packet number that is stored in the storage unit, wherein in a case where the two packet numbers are consistent with each other, the control unit generates a delivery acknowledgement including the packet number that is stored in the storage unit, transmits the generated delivery acknowledgement from the wireless communication unit to the other communication party, and updates the packet number that is stored in the storage unit, and wherein the two packet numbers are not consistent with each other, the control unit generates a disconnection instruction to which a message urging activation of a packet service is added, and transmits the generated disconnection instruction from the wireless communication unit to the other communication party.