eLTE-loT improves transmission efficiency and system capacity through () technology?

eLTE-IoT is optimized to handle the unique traffic patterns of massive IoT, which involve numerous devices sending small, frequent data packets. The "Packet Quick Pass" technology streamlines the data plane processing within the core network. It establishes a fast-forwarding path for IoT data, minimizing the per-packet processing overhead and latency. By reducing the load on network elements, the system can handle a significantly larger number of simultaneous connections and data sessions, thereby improving both the end-to-end transmission efficiency and the overall system capacity for massive machine-type communications.

B. HARQ+ARQ: These are standard LTE error correction and retransmission mechanisms for ensuring reliability; they are not specific enhancements for improving eLTE-IoT capacity.
C. Frequency hopping technology: This is a technique used primarily to improve signal coverage and robustness against interference, especially for NB-IoT, not a primary driver of transmission efficiency.
D. PSM: Power Saving Mode is a device-side feature designed to conserve battery life by allowing the device to sleep for long periods; it does not improve data transmission efficiency.

1. Huawei Technologies Co., Ltd. (2017). eLTE-IoT Solution Technical White Paper. Section 3.1.2, "Core Network Enhancements." This document describes optimizations like "Fast Path" (Packet Quick Pass) to reduce signaling overhead and data latency for small packets.

2. Huawei Certified ICT Associate - IoT V2.5 Training Material. (2021). Module 4, "Huawei IoT Solutions," Sub-module on "eLTE-IoT Key Technologies." This courseware details the specific features that differentiate eLTE-IoT, including core network optimizations for small packet forwarding.