Carrier Aggregation Radio System Diversity Antenna Routing
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Solution Overview
Problem
Existing carrier aggregation radio systems suffer from transceiver performance degradation due to insertion losses caused by extra diplexing networks, which complicates the architecture and increases costs.
Innovation Solution
A carrier aggregation radio system that maintains a simple radio front end architecture by repurposing the diversity antenna to avoid the need for extra diplexing networks, utilizing a control system to route signals between main and carrier aggregation receivers, and introducing a third mode for simultaneous carrier aggregation and diversity reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If extra diplexing networks are added to enable carrier aggregation, then carrier aggregation functionality is achieved, but transceiver performance degrades due to insertion losses
Solution Approach 1:
The diversity antenna is repurposed to serve dual functions: receiving diversity signals for the main receiver and receiving carrier aggregation signals for the carrier aggregation receiver. This eliminates the need for separate diplexing networks, maintaining transceiver performance while enabling carrier aggregation functionality.
Solution Approach 2:
A control system acts as an intermediary to dynamically route signals from the diversity antenna to either the main receiver or the carrier aggregation receiver based on operational mode. This mediation enables flexible signal routing without requiring permanent diplexing infrastructure.
2Adaptability or versatility
If extra diplexing networks are added to enable carrier aggregation, then carrier aggregation functionality is achieved, but device complexity increases
Solution Approach 1:
The diversity antenna and control system are utilized to perform multiple functions including diversity reception and carrier aggregation reception. This multi-functionality eliminates the need for separate diplexing networks and reduces overall device complexity while maintaining carrier aggregation capability.
Solution Approach 2:
The patent combines the diversity reception path and carrier aggregation reception path by having both functions share the diversity antenna and control system. This merging eliminates redundant components and simplifies the radio front end architecture.
3Adaptability or versatility
If extra diplexing networks are added to enable carrier aggregation, then carrier aggregation functionality is achieved, but manufacturing costs increase
Solution Approach 1:
By making the diversity antenna and control system multi-functional, the patent eliminates the need to manufacture and install separate diplexing networks. This reduces component count and manufacturing complexity, thereby lowering production costs while maintaining carrier aggregation functionality.
Data Source
AI summary
A carrier aggregation radio system is provided. The carrier aggregation radio system includes a transceiver having a main receiver, a diversity receiver and a carrier aggregation receiver. The carrier aggregation radio system further includes a control system adapted to command a radio front end to route diversity signals from a diversity antenna to the main and diversity receivers in a first mode and to command the radio front end to route carrier aggregation signals from the diversity antenna to the carrier aggregation receiver in a second mode. The control system may also command a third mode in which diversity signals are routed to the main and diversity receivers while carrier aggregation signals are routed to the carrier aggregation receiver.