ARQ (Automatic Repeat reQuest)

An error control protocol that automatically initiates a request to

repeat the transmission of any packet or frame not acknowledged as received correctly, in other words, to retransmit the last errored or lost frame or packet and any transmitted afterwards. Incremental redundancy (IR), also known as Hybrid ARQ II, is an enhanced ARQ technique employed in EGPRS (Enhanced General Packet Radio System), the packet-switched mode of Enhanced Data rates for GSM Evolution (EDGE) cellular radio networks. See also EDGE, EGPRS, error control, frame, IR, packet, and protocol.

• non-deterministic
• non-dialable toll points
• non dispersion-shifted fiber (NDSF)
• non-facility associated signaling (NFAS)
• non-line-of-sight (NLOS)
• nonpersistent carrier sense multiple access (Nonpersistent CSMA)
• Nonpersistent CSMA (Nonpersistent Carrier Sense Multiple Access)
• non-real-time (nrt)
• non real-time variable bit rate (nrt-VBR)
• non-repudiation
• non-return-to-zero (NRZ)
• non-wireline carrier
• non-wireline carrier
• Nordic Mobile Telephone (NMT)
• Nordic Mobile Telephone (NMT)
• normal
• North American Numbering Council (NANC)
• North American Numbering Plan (NANP)
• North American Time Division Multiple Access (NA-TDMA)
• NOS (Network Operating System)
• notation
• Not To Act Like It)
• Novel Services)
• NPAC (Number Portability Administration Center)
• NPA (Numbering Plan Administration)