Dynamic Antenna Selection for Multi-Mode User Equipment
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Solution Overview
Problem
Current multi-mode user equipment (UE) designs for non-millimeter-wave frequency bands require multiple antennas, leading to increased hardware costs and complexity due to the need for additional baseband processing units for diversity gain, which is not dynamically adaptable to changing network conditions.
Innovation Solution
The method involves receiving multi-antenna selection reference information from a base station to determine optimal antenna combinations for wireless communication, reducing the number of antennas connected to the baseband and dynamically adapting to current network conditions, thereby improving communication quality and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antennas are provided on multi-mode user equipment for non-millimeter-wave frequency bands to achieve diversity gain, then communication reliability is improved, but hardware cost and device complexity increase due to additional baseband processing units
Solution Approach 1:
The patent implements dynamic antenna selection where the base station determines optimal antenna combinations based on real-time channel conditions and sends selection reference information to the UE. The UE dynamically switches between different antenna combinations (e.g., 2-antenna or 4-antenna modes) rather than permanently supporting all combinations, reducing hardware complexity while maintaining reliability when needed.
Solution Approach 2:
The system changes operational parameters by switching between different antenna combination configurations (2 antennas vs. 4 antennas) based on network conditions. The base station sends multi-antenna selection reference information that indicates which antenna combinations should be activated, allowing the UE to adjust its configuration dynamically without permanently supporting all possible configurations.
2Reliability
If multiple antennas are provided on multi-mode user equipment to support simultaneous reception from four antennas, then diversity gain is improved, but hardware cost increases due to additional baseband hardware processing units
Solution Approach 1:
The patent enables the UE to dynamically switch between 2-antenna and 4-antenna reception modes based on network conditions and base station instructions. The UE includes all necessary antenna ports but selectively activates different combinations, avoiding the need to permanently provision hardware for all possible configurations simultaneously.
Solution Approach 2:
The UE is designed with universal antenna ports that can serve multiple functions depending on configuration. The same physical antenna structures support both 2-antenna and 4-antenna modes, allowing the hardware to be multi-functional rather than requiring separate dedicated hardware for each mode.
3Reliability
If the multi-mode UE is provided with additional baseband hardware processing units for channel estimation, signal processing, and control to support 4-antenna reception, then communication quality is improved, but device complexity and cost increase
Solution Approach 1:
The baseband processing units are dynamically activated based on the selected antenna combination. When 4-antenna reception is selected, the full processing capability is activated; when 2-antenna mode is selected, fewer processing units are activated. This dynamic activation reduces the effective hardware complexity required compared to permanently supporting 4-antenna reception.
Data Source
AI summary
An information communication method includes receiving multi-antenna selection reference information sent by a base station; and determining antenna combinations for wireless communication based on the multi-antenna selection reference information. An apparatus, communication equipment and a storage medium for executing the method are also disclosed.