Multi-Antenna Tx Path Selection for 5G Signal Power Balance
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Solution Overview
Problem
Existing electronic devices configuring transmission paths for 5G communication systems do not adequately consider antenna path losses and Tx/Rx imbalances, leading to inefficient signal transmission and potential connection loss.
Innovation Solution
An electronic device and method that configures an optimal transmission path by considering received signal strength, maximum transmittable power, and Tx/Rx imbalance across multiple antenna paths, selecting the most suitable antenna for transmission based on these factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a Tx path is configured by considering only the difference in received signal strength (RSRP) for each path, then the configuration is simple, but the actual radiation power through the antenna is not considered leading to suboptimal transmission
Solution Approach 1:
The patent changes the parameter basis for Tx path configuration from only RSRP difference to a composite parameter that includes both RSRP difference and maximum transmittable power difference. This allows the system to select antenna paths that truly maximize radiation power while maintaining connection stability, resolving the contradiction between configuration simplicity and connection reliability.
2Device complexity
If antenna tuning circuit is configured without considering Tx/Rx imbalance, then the configuration process is simpler, but incorrect antenna selection occurs leading to poor radiation power or unnecessary path switching
Solution Approach 1:
The patent introduces feedback mechanisms where the communication processor measures RSRP and maximum transmittable power for each antenna path, then uses this feedback information to determine the optimal antenna for transmission. This feedback loop ensures that Tx/Rx imbalance is properly considered, maximizing radiation power while avoiding unnecessary path switching.
3Adaptability or versatility
If multiple antenna paths are provided with different path losses and antenna losses, then more transmission options are available, but selecting the optimal path becomes more complex
Solution Approach 1:
The patent simplifies the path selection process by changing the decision parameter from multiple complex factors (path loss, antenna loss, RSRP) to a streamlined comparison of RSRP difference and maximum transmittable power difference. This allows the system to leverage multiple antenna paths for adaptability while keeping the selection logic relatively simple through clear quantitative thresholds.
Data Source
AI summary
According to various embodiments, an electronic device comprises: a communication processor; at least one radio frequency integrated circuit (RFIC) connected to the communication processor; and a plurality of antennas, each of which is connected to the at least one RFIC through at least one radio frequency front-end (RFFE) circuit and configured to transmit a signal corresponding to at least one communication network, wherein the communication processor may identify information related to strength of a reception signal received through each of the plurality of antennas, identify the maximum transmittable power set corresponding to a transmission path for each of the plurality of antennas, and control the electronic device such that a transmission signal to be transmitted through at least one antenna selected from among the plurality of antennas at least based on the identified information related to the strength of the reception signal and maximum transmittable power.