1-Port Uplink Switching Across Four Frequency Bands
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in signal transmission and reception, particularly in managing multiple transmission chains across different frequency bands, limiting throughput and spectrum utilization.
Innovation Solution
A method and apparatus for efficiently switching transmission chains between band pairs in a wireless communication system, allowing for 1-port transmission on each carrier after initial 1-port transmission on bands A and B, and reporting preferred switching cases for uplink transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple transmission chains are used across different frequency bands, then spectrum utilization and throughput are improved, but device complexity and management difficulty increase
Solution Approach 1:
The patent implements dynamic transmission chain switching between different frequency bands (band A/B and band C/D) based on signal conditions and requirements. The system can adaptively switch which band pair is active for transmission, allowing the transmission chain configuration to change dynamically rather than being fixed, thus improving throughput while managing complexity through controlled adaptability
Solution Approach 2:
The patent divides the frequency spectrum into separate band pairs (A/B and C/D) that can be independently managed and switched. By segmenting the transmission into distinct band groups with specific switching periods, the system can handle multiple bands without requiring all transmission chains to operate simultaneously, reducing management complexity while maintaining high spectrum utilization
2Productivity
If transmission chains switch between band pairs, then spectrum utilization is improved, but signal transmission stability may be affected
Solution Approach 1:
The patent implements periodic switching between band pairs with defined switching periods (first switching period for A/B to C/D, second switching period for C/D to A/B). This periodic action allows the system to systematically utilize different frequency bands in a structured manner, improving overall spectrum utilization while maintaining predictable transmission patterns that support stability
Solution Approach 2:
The patent performs preliminary switching actions between band pairs based on pre-determined switching periods and conditions. By proactively switching transmission chains between bands before performance degradation occurs, the system maintains signal stability while systematically utilizing available spectrum resources across different frequency ranges
Data Source
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AI summary
A method and apparatus for transmitting and receiving signals in a wireless communication system, disclosed in the present specification, performs uplink switching for 1-port transmissions performed in each of four bands. A preferred case from among the number of possible cases of the uplink switching may be reported to a network. The minimum value from among values of each of the number of cases is used as a switching gap applied to the uplink switching