Frequency Hopping Configuration for Flexible Coverage Enhancement
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Solution Overview
Problem
Existing frequency hopping systems lack flexibility and efficiency in configuring frequency hopping positions, leading to suboptimal coverage enhancement and diversity in communication systems.
Innovation Solution
A network device generates configuration information for multiple frequency hopping modes, including start RBs and frequency offsets, which is transmitted to a terminal device to determine optimal frequency hopping positions, enhancing flexibility and diversity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency hopping is used to avoid interference and prevent eavesdropping, then communication reliability is improved, but the system lacks flexibility in configuring frequency hopping positions
Solution Approach 1:
The patent implements dynamic frequency hopping configuration by allowing the network device to generate and transmit configuration information for multiple frequency hopping modes to the terminal device. The terminal device can determine appropriate frequency hopping positions based on received configuration information indicating sets of candidate frequency offsets, enabling the system to adapt frequency hopping parameters dynamically rather than using fixed patterns.
Solution Approach 2:
The patent changes the parameter configuration approach by introducing configurable frequency offsets as adjustable parameters. The network device can configure different sets of frequency offsets for different frequency hopping modes, allowing the system to optimize frequency hopping positions by changing parameters based on communication conditions rather than using static configurations.
2Device complexity
If fixed frequency hopping patterns are used, then system complexity is reduced, but coverage enhancement and diversity are suboptimal
Solution Approach 1:
The patent segments the frequency hopping configuration into multiple independent modes, each with its own set of candidate frequency offsets. The network device can configure different frequency hopping modes separately, allowing the system to select appropriate modes for different communication scenarios without increasing overall system complexity significantly.
Solution Approach 2:
The patent applies preliminary action by having the network device generate and transmit configuration information for multiple frequency hopping modes in advance. The terminal device receives and stores these configuration information indicating sets of candidate frequency offsets before actual frequency hopping occurs, enabling quick selection and application of appropriate hopping patterns without real-time computation.
Data Source
AI summary
Example embodiments of the present disclosure relate to communication. According to embodiments of the present disclosure, a network device transmits configuration information for one or more frequency hopping modes to a terminal device. The terminal device determines which frequency hopping mode is used and also determines a plurality of frequency hopping positions based on the configuration information. In this way, it can have more frequency hopping positions which achieve more frequency diversity gain and benefit to coverage enhancement. Further, the frequency hopping frequency is configured more flexible.