RRM Measurement Indication Method for Reducing Network Overhead
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Solution Overview
Problem
Existing radio resource management (RRM) methods in LTE systems rely heavily on downlink reference signals for terminal measurements, leading to excessive network overheads, especially in dense base station deployments.
Innovation Solution
Implementing a method where the terminal adjusts its uplink measurement signal based on a downlink measurement signal from the base station, allowing for flexible RRM measurement manners such as downlink assisted uplink RRM measurement, where the base station adjusts the sending of downlink measurement signals based on uplink measurement results, and vice versa, to optimize measurement efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the terminal performs measurement depending only on a manner of frequently receiving downlink reference signals, then measurement accuracy is improved, but network overhead increases excessively
Solution Approach 1:
The patent inverts the traditional downlink-only measurement approach by introducing uplink measurement signals transmitted from the terminal to the base station. The base station measures the uplink channel quality directly, eliminating the need for frequent downlink reference signal transmissions while maintaining measurement accuracy through the reciprocal relationship of wireless channels.
Solution Approach 2:
The terminal autonomously adjusts its uplink transmission parameters based on downlink channel quality indicators received from the base station. This self-adjustment mechanism allows the terminal to optimize uplink measurement signal transmission without requiring continuous network control, reducing signaling overhead while maintaining measurement precision.
2Reliability
If the terminal frequently receives downlink reference signals for measurement, then handover decision accuracy is improved, but base station resource consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of measurement signal transmission based on channel conditions and terminal mobility states. The base station configures uplink measurement signal parameters adaptively, transmitting measurement signals only when necessary for handover decisions, thereby reducing resource consumption while maintaining decision accuracy through on-demand measurement rather than continuous transmission.
3Productivity
If the terminal adjusts uplink measurement signal sending based on downlink measurement signal, then measurement efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the base station provides downlink channel quality indicators to the terminal, and the terminal adjusts its uplink measurement signal transmission accordingly. This closed-loop feedback system enables the terminal to optimize measurement efficiency by adapting transmission parameters based on real-time channel conditions, while the standardized feedback protocols keep system complexity manageable.
Data Source
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AI summary
Embodiments of this application provide a resource management indication method and apparatus. The method includes: generating, by a base station, radio resource management RRM measurement manner indication information, where the RRM measurement manner indication information is used to indicate an RRM measurement manner; and sending, by the base station, the RRM measurement manner indication information to a terminal. In the embodiments of this application, the base station can flexibly indicate the RRM measurement manner to the terminal, so that a more proper RRM measurement manner is used, to improve measurement efficiency and reduce measurement overheads.