Wireless Technology Terms, Glossary and Dictionary

ARQ: Automatic Repeat Request

Automatic Repeat Request (ARQ) is a communication protocol in which the receiving device detects errors and requests retransmissions. When the receiver detects an error in a packet, it automatically requests the transmitter to resend the packet. This process is repeated until the packet is error free or the error continues beyond a predetermined number of transmissions. ARQ is sometimes used with Global System for Mobile (GSM) communication to guarantee data integrity.

Related Terms

ARQ: Automatic Repeat Request