Carrier Selection for 5G Coverage and Bandwidth Trade-offs
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Solution Overview
Problem
The 5G communication system faces reduced cell coverage when deployed on higher frequency bands compared to 4G and 3G systems, leading to an unbalanced communication system, necessitating increased complexity with more cells.
Innovation Solution
A method and device that allow terminals to acquire and measure operating parameters of second carriers with different frequency bands, determining a target carrier to balance the communication system by flexibly utilizing characteristics of various frequency bands, enabling effective communication with a base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the 5G communication system is deployed on a higher frequency band, then the bandwidth transmission requirement is met, but the cell coverage is greatly reduced
Solution Approach 1:
The patent segments the frequency band utilization by introducing second carriers at different frequency bands (first frequency band and second frequency band) within the same cell. This allows the system to segment the coverage area and bandwidth requirements across different frequency bands, thereby maintaining both high bandwidth transmission and extended cell coverage.
Solution Approach 2:
The patent adds a frequency band dimension to the carrier configuration. Instead of using a single frequency band, the system configurations carriers across multiple frequency bands (first frequency band and second frequency band), effectively adding a dimensional aspect to the frequency spectrum utilization, which resolves the contradiction between bandwidth and coverage.
2Area of stationary object
If more cells are deployed to increase cell coverage, then the cell coverage reaches the level of 4G and 3G systems, but the complexity of deploying cells is increased
Solution Approach 1:
The patent merges multiple frequency bands (first frequency band and second frequency band) into a single cell configuration. By combining carriers from different frequency bands within one cell, the system achieves extended cell coverage without proportionally increasing the number of separate cells, thereby reducing deployment complexity.
Solution Approach 2:
The cell structure is made universal by configuring both first carriers and second carriers at different frequency bands within the same cell. This multi-functional cell design allows a single cell to serve multiple frequency bands simultaneously, reducing the need for separate cells for different frequency bands and thus lowering deployment complexity.
3Area of stationary object
If the 5G communication system is deployed on a relatively low frequency band, then the cell coverage is maintained, but the bandwidth transmission requirement cannot be met
Solution Approach 1:
The patent segments the bandwidth requirement across different frequency bands. By configuring first carriers at a first frequency band and second carriers at a second frequency band within the same cell, the system segments the total bandwidth into multiple frequency segments, allowing the cell to achieve both coverage and high bandwidth transmission capability.
Solution Approach 2:
The patent utilizes the frequency band dimension to resolve the contradiction. By adding carriers at a second frequency band (different from the first frequency band), the system effectively uses the frequency spectrum as an additional dimension, enabling both maintained cell coverage and met bandwidth transmission requirements simultaneously.
Data Source
AI summary
Disclosed are a method and device for wireless communication. The method comprises: a terminal obtains, from first carriers of a cell, operating parameters of second carriers of the cell, the frequency band where the first carriers are located being different from the frequency band where the second carriers are located; the terminal measures the second carriers of the cell according to the operating parameters of the second carriers of the cell to obtain a measurement result for the second carriers of the cell; the terminal determines a target carrier from the second carriers of the cell; the terminal communicates with a base station by means of the target carrier. According to the solution, the first and second carriers are configured in the cell, and the frequency bands where the first and second carriers are located different, and therefore, the characteristics of different frequency bands are utilized flexibly, so as to balance the design of an entire communication system.