HARQ stands for Hybrid Automatic Repeat Request (HARQ). This is a physical layer functionality in LTE. It is type of error detection and correction technique. It uses forward error correction. ARQ: Automatic Repeat Request. It means, if the sender doesn’t receive ACK from the receiver before …
LTE Physical Layer 2 radio frames are supported: 1. Type 1: FDD : Frequency Division Duplex 2. Type 2: TDD : Time Division Duplex For multiple access, LTE uses: For down link: OFDMA: Orthogonal Frequency Division Multiple Access For up link: SC-FDMA: Single Carrier Frequency Division …