Dynamic Antenna-Channel Mapping for MIMO Throughput Under Fading
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Solution Overview
Problem
In multi-antenna systems, fixed mapping relationships between antennas and signal frequencies can lead to reduced throughput performance due to severe fading and high space correlation, affecting MIMO reception.
Innovation Solution
An antenna configuration method that traverses multiple configurations to determine an optimal mapping relationship between antennas and bonded channels based on channel measurement information, using signals like null data packets or sounding frames to improve throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed mapping relationship between antennas and signal frequencies is used, then device complexity is reduced, but throughput performance deteriorates due to severe fading and high space correlation
Solution Approach 1:
The patent implements dynamic antenna configuration by allowing the mapping relationship between antennas and bonded channels to be adjusted based on channel measurement information. The system traverses multiple antenna configuration solutions and selects the optimal one, transforming the static fixed mapping into a dynamic adaptive mapping that responds to channel conditions, thereby resolving the contradiction between simplicity and performance.
Solution Approach 2:
The patent changes the mapping parameter between antennas and frequency channels based on measured channel conditions. By traversing different configuration solutions and selecting the optimal mapping relationship according to channel measurement information, the system adapts to varying channel characteristics, improving throughput performance without requiring complex hardware modifications.
2Productivity
If channel bonding is used to increase transmission bandwidth, then productivity is improved, but object-affected harmful factors worsen due to severe fading on bonded channels
Solution Approach 1:
The patent implements a feedback mechanism where channel measurement information is obtained for each antenna configuration solution, and this feedback is used to select the optimal configuration. The system measures channel conditions, evaluates different antenna mappings, and selects the configuration that minimizes the impact of fading, thereby maintaining high throughput on bonded channels despite severe fading conditions.
Solution Approach 2:
The patent performs preliminary channel measurement and evaluation before actual data transmission. By traversing multiple antenna configuration solutions and measuring channel conditions in advance, the system identifies the optimal configuration that will best withstand fading effects, and then uses this pre-determined optimal configuration for data transmission, thereby mitigating the harmful effects of fading on throughput.
Data Source
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AI summary
Embodiments of this application relate to the field of chip technologies, and provide an antenna configuration method and a communication apparatus, to determine an optimal mapping relationship between an antenna and a channel in a channel-bonded multi-antenna device, thereby improving a throughput of a multi-antenna system. The method includes: respectively transmitting a measurement signal by using a plurality of antenna configuration solutions, where each antenna configuration solution is used to configure a signal transmitted by each of a plurality of antennas, and there is a bonding relationship between signals transmitted by the plurality of antennas; and performing data transmission by using a target antenna configuration solution in which channel measurement information meets an antenna configuration condition in channel measurement information of the plurality of antenna configuration solutions. Embodiments of this application are used in a data transmission process in a channel bonding technology.