Frequency Domain Compression for Base Transceiver System Serial Links
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Base transceiver systems in wireless communication networks face challenges in managing increasing data volumes and evolving standards, leading to the need for enhanced serial data link capacity and efficient data processing without incurring costly hardware upgrades.
Innovation Solution
Implementing frequency domain compression and decompression techniques in base station transceiver systems, where RF units transform and compress signal samples into the frequency domain, and then transmit them over serial data links to baseband processors, which decompress them for further processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency domain compression is implemented, then data link capacity is improved, but device complexity increases
Solution Approach 1:
The patent replaces time-domain processing with frequency-domain processing using Fast Fourier Transform (FFT) algorithms. This substitution enables compression of signal data in the frequency domain, achieving higher data link capacity while managing processing complexity through efficient algorithmic approaches rather than traditional time-domain methods.
Solution Approach 2:
The patent transforms signal parameters from the time domain to the frequency domain, changing the representation of signal data. By applying FFT to convert time-domain samples into frequency-domain coefficients, the system achieves compression by manipulating frequency components, thereby improving data link capacity while maintaining manageable processing requirements.
2Productivity
If frequency domain compression is implemented, then data transfer efficiency is improved, but processing overhead increases
Solution Approach 1:
The patent applies Fast Fourier Transform (FFT) compression to signal data before transmission over the data link. By performing the frequency domain transformation and compression in advance at the transmitting end (RF unit), the system reduces the amount of data that needs to be transferred, thereby improving data transfer efficiency while the processing overhead is confined to the preprocessing stage.
Solution Approach 2:
The patent substitutes traditional time-domain data transfer with frequency-domain compressed data transfer. By replacing the direct transmission of time-domain samples with the transmission of compressed frequency-domain coefficients, the system achieves higher transfer efficiency as less data needs to be transmitted across the data link.
3Ease of manufacture
If frequency domain compression is implemented, then hardware upgrade costs are reduced, but processing requirements increase
Solution Approach 1:
The patent changes the domain of signal processing from time to frequency, enabling compression that reduces data link requirements. This parameter transformation allows existing hardware infrastructure to handle compressed data streams more efficiently, potentially deferring or reducing the need for costly hardware upgrades while concentrating processing requirements in the software/firmware domain.
Data Source
AI summary
A method and apparatus provide signal compression for transfer over serial data links in a base transceiver system (BTS) of a wireless communication network. For the uplink, an RF unit of the BTS applies frequency domain compression of baseband signal samples, resulting from analog to digital conversion of received analog signals followed by digital downconversion, forming compressed coefficients. After transfer over the serial data link, the baseband processor then applies frequency domain decompression to the compressed coefficients prior to normal signal processing. For the downlink, the baseband processor applies frequency domain compression of baseband signal samples and transfers the compressed coefficients to the RF unit. The RF unit applies frequency domain decompression to the compressed coefficients prior to digital upconversion and digital to analog conversion, generating the analog signal for transmission over the antenna. This abstract does not limit the scope of the invention as described in the claims.