Base Station XDD Allocation Without Guard Bands
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Solution Overview
Problem
Existing technologies have not thoroughly examined methods for implementing Cross Division Duplex (XDD) using resource block (RB) sets, leading to complex configurations and interference issues in radio communication systems.
Innovation Solution
A method for configuring allocation resources within a single RB set, where transmission directions are individually set for each band, simplifying the terminal configuration and reducing interference by eliminating the need for guard bands and RF filter changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If transmission directions are individually configured for each band in XDD system, then resource utilization efficiency is improved, but terminal configuration complexity and interference issues worsen
Solution Approach 1:
The frequency band is divided into multiple bands (e.g., RB sets), and transmission directions are individually configured for each band. This segmentation allows independent control of transmission directions in different frequency regions, improving resource utilization efficiency while managing complexity through structured division.
Solution Approach 2:
Different transmission directions (uplink or downlink) are assigned to different bands based on local requirements. This local quality approach allows each band to be optimized for its specific function, enabling flexible resource allocation while maintaining manageable terminal configuration through standardized procedures.
2Object-affected harmful factors
If guard bands and RF filter changes are used to reduce interference, then interference is reduced, but terminal configuration complexity and processing overhead increase
Solution Approach 1:
The patent extracts and eliminates the need for guard bands and RF filter changes by implementing proper transmission direction configuration at the band level. This removes harmful elements (guard bands consuming resources) and complex processing requirements (RF filter changes) while still achieving interference reduction through coordinated transmission direction management.
Solution Approach 2:
Instead of using guard bands (which waste resources) or RF filter changes (which add complexity), the patent converts the potential harm of interference into a benefit by strategically configuring transmission directions. The interference issue is resolved through intelligent resource allocation rather than traditional protective measures, turning a problem into an opportunity for improved efficiency.
3Reliability
If complex terminal configuration is implemented to support XDD, then transmission direction control is improved, but ease of operation deteriorates
Solution Approach 1:
The base station performs multiple functions: it configures transmission directions for each band, manages resource allocation, and controls interference coordination. By centralizing these control functions at the base station, the terminal's configuration complexity is reduced while maintaining reliable transmission direction control through the base station's coordinated management.
Solution Approach 2:
The base station performs preliminary configuration of transmission directions and resource allocation before actual data transmission. This advance configuration ensures that the terminal receives clear, pre-determined instructions for each band, improving operational ease while maintaining reliable transmission direction control through proactive planning.
Data Source
AI summary
The base station comprises: a control circuit that sets allocation resources to be allocated to signals of a terminal within one of a plurality of bands, in a method in which transmission directions are individually set for a plurality of bands obtained by dividing a frequency band; and a communication circuit that either transmits or receives a signal using the allocation resources.