Multi-band transmitter with dynamic channel tuning
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Solution Overview
Problem
Current multi-band transmission systems are inflexible and costly, as they require separate transmitters for each band and are not easily scalable to meet increasing bandwidth demands, limiting their ability to combine arbitrary channels into band signals efficiently.
Innovation Solution
A multi-band transmission system comprising a channel tuner and a multi-band synthesizer, which frequency shifts channel streams based on band membership control signals and selectively combines Intermediate Frequency (IF) channel streams into band signals using band synthesizers with gain adjustment and multiplexing capabilities, allowing for flexible configuration and scalability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate transmitters are used for each band, then transmission reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple band transmitters into a single multi-band transmitter that can handle multiple frequency bands simultaneously. The transmitter includes a resource allocator that distributes data streams across different bands and a modulator that modulates signals for multiple bands, eliminating the need for separate transmitters while maintaining transmission reliability through coordinated multi-band operation.
Solution Approach 2:
The transmitter is designed as a universal multi-band system that can operate across multiple frequency bands (e.g., E-UTRA, NR) and support various transmission modes. The resource allocator and modulator are configured to dynamically allocate resources and modulate signals for different bands based on network conditions, providing multi-functional capability in a single device.
2Adaptability or versatility
If fixed band configuration is used, then device complexity is reduced, but adaptability to different bandwidth demands decreases
Solution Approach 1:
The transmitter employs dynamic resource allocation where the resource allocator continuously adjusts the distribution of data streams across different bands based on real-time network conditions and bandwidth demands. The system can dynamically reconfigure which bands are active and how resources are allocated, allowing flexible adaptation to changing transmission requirements without requiring fixed band configurations.
Solution Approach 2:
The system changes operational parameters such as bandwidth allocation, modulation schemes, and resource distribution across bands based on network conditions. The resource allocator modifies these parameters dynamically to optimize performance for different bandwidth demands, enabling the transmitter to adapt to various network scenarios while managing complexity through parameter adjustment rather than structural changes.
3Productivity
If multiple transmitters are deployed to meet bandwidth demands, then transmission capacity increases, but cost and energy consumption increase
Solution Approach 1:
The patent merges multiple band transmission functions into a single transmitter, consolidating the energy consumption of multiple separate transmitters into one system. The multi-band transmitter processes and transmits data across multiple bands simultaneously, achieving the same transmission capacity that would require multiple transmitters while reducing overall energy consumption and infrastructure costs.
Solution Approach 2:
The universal multi-band transmitter performs the functions of multiple specialized transmitters in a single device, supporting various frequency bands and transmission modes. This multi-functionality allows the system to achieve high bandwidth capacity without deploying multiple separate transmitters, thereby reducing energy consumption and operational costs while maintaining high productivity.
Data Source
AI summary
A multi-band synthesizer generates a multi-band signal for transmission. The multi-band signal comprises a plurality of band signals each comprising one or more channel signals. The channel signals to be included in a particular band signal are specified in control signals, allowing the channels included in a band to be easily changed.