Base Station Spectrum Processing for Inter-System Overlap
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Solution Overview
Problem
Existing spectrum processing methods in LTE networks require user equipment (UE) to perform inter-system measurements to determine the use of buffer zones, leading to increased power consumption and air interface resource usage.
Innovation Solution
A method where a base station receives subband channel quality parameters from UE to determine whether an overlapped spectrum is used, eliminating the need for inter-system measurements by UE, thereby reducing power consumption and conserving air interface resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UE performs inter-system measurement to determine buffer zone usage, then spectrum allocation accuracy is improved, but power consumption of UE increases
Solution Approach 1:
The patent introduces the base station as an intermediary that performs the spectrum determination function instead of the UE. The base station receives channel quality parameters from UE and autonomously determines whether to allocate buffer zone spectrum, thereby eliminating the need for UE to perform inter-system measurements and reducing UE power consumption while maintaining spectrum allocation accuracy.
2Measurement precision
If UE performs inter-system measurement to determine buffer zone usage, then spectrum allocation accuracy is improved, but air interface resource consumption increases
Solution Approach 1:
The base station acts as an intermediary that consolidates the determination function. Instead of UE sending measurement reports over the air interface, the base station uses received channel quality parameters to make the determination locally, significantly reducing air interface resource consumption while maintaining accurate spectrum allocation decisions.
3Adaptability or versatility
If UE has inter-system measurement capability, then buffer zone spectrum can be utilized, but device complexity increases
Solution Approach 1:
The patent transfers the complex inter-system measurement and determination functionality from the UE to the base station. The base station, which already has the capability to manage spectrum resources, performs the buffer zone determination based on simple channel quality parameters received from UE, thereby enabling buffer zone spectrum utilization without increasing UE device complexity.
4Measurement precision
If UE sends measurement report for inter-system measurement, then spectrum determination accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts the spectrum determination function from the UE measurement report process. Instead of UE sending detailed measurement reports, only essential channel quality parameters are transmitted, and the base station performs the spectrum determination locally, thereby maintaining determination accuracy while minimizing signaling overhead and air interface resource usage.
Data Source
AI summary
Embodiments of the present invention relate to the field of communications technologies and disclose a spectrum processing method, a base station, user equipment, and a system. The method includes: receiving, by a base station corresponding to a first cell, at least one subband channel quality parameter that is sent by user equipment (UE) in the first cell, where each subband channel quality parameter indicates quality of one subband channel; and determining, according to the at least one subband channel quality parameter, whether the first cell uses an overlapped spectrum, where the overlapped spectrum is a part at which a frequency band of the first cell overlaps a frequency band of a second cell, the second cell and the first cell are inter-system cells, and the second cell is neighboring to the first cell. Embodiments of the present invention are mainly applied to a process of using a network spectrum.