Patent ID: 9661685
Date: 2017-05-23
CPC Classifications: H04B,H04L,H04W

Claim:
1. A wireless communication system for performing a wireless communication between two wireless communication devices based on a time division method, the system comprising: one of the wireless communication devices configured to transmit a plurality of packets according to an order of sequence numbers tagged to the packets; and the other wireless communication device including a scheduled packet sequence number setting unit for providing a scheduled packet sequence number of an expected packet and updating the scheduled packet sequence number according to packets that have been correctly received, a resend control unit that, at prescribed periodic timings, determines an update condition of the scheduled packet sequence number and transmits, to the one wireless communication device, a negative response signal for requesting a resending of a packet depending on the determined update condition, and a storage unit for temporarily storing at least the packet that is received in an incorrect order, and releasing the stored packet in a correct order in relation with the remaining packets that are received from the one wireless communication device; the resend control unit comparing the scheduled packet sequence number at each prescribed period timing with the scheduled packet sequence number at a previous prescribed periodic timing, and transmitting the negative response signal when the scheduled packet sequence number at each prescribed period timing has failed to be updated from the scheduled packet sequence number at the previous prescribed periodic timing and at least one packet is stored in the storage unit at each prescribed periodic timing.