Antenna Parameter Configuration for LTE and 5G Coexistence
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Solution Overview
Problem
There is a need for enhanced antenna parameter configuration methods in cellular communication systems, particularly to improve the performance of LTE release-8 and earlier users when massive MIMO units are deployed.
Innovation Solution
The proposed solution involves methods and apparatuses for configuring antenna parameters, including online beam selection and beam generation techniques, to optimize coverage and throughput in cellular communication systems. This involves dividing the angular domain into grids, mapping these grids to cell coverage areas, and assigning weights to different angular grids to synthesize beam patterns that balance coverage and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If massive MIMO units are deployed to improve network capacity and data rates, then system throughput and spectral efficiency are enhanced, but compatibility and performance for LTE release-8 and earlier users deteriorate
Solution Approach 1:
The invention segments the angular domain into multiple grids and divides the beam codebook into multiple subsets, each corresponding to different angular grid types. This segmentation allows the system to selectively apply different beamforming strategies for different angular regions, thereby maintaining compatibility with legacy LTE release-8 users while enabling advanced features for newer users.
Solution Approach 2:
The invention introduces dynamic beam selection mechanisms where the system can adaptively choose between different beam codebook subsets based on user type and channel conditions. The beam selection is dynamically adjusted through online optimization algorithms that consider both legacy and advanced user requirements, allowing the system to transition between different operational modes.
2Ease of operation
If dynamic beam selection is implemented to improve user experience for legacy users, then system complexity increases
Solution Approach 1:
The invention performs preliminary classification of angular grids into different types before actual beam selection. Beam codebooks are pre-divided into multiple subsets corresponding to different angular grid types, and classification results are stored in advance. This preliminary action simplifies the real-time beam selection process by reducing the search space and enabling faster decision-making.
Solution Approach 2:
The invention introduces an intermediary classification mechanism that acts as a mediator between the complex beam codebook and the final beam selection. The classification module categorizes angular grids and selects appropriate beam codebook subsets, thereby simplifying the overall system complexity while maintaining optimal performance for different user types.
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AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus of a BS in a wireless communication system is provided. The method and apparatus comprises: storing a set of beam codebooks including a plurality of angular grids each of which is identified as a first type of angular grid or a second type of angular grid; identifying a set of parameters to adjust an antenna beam pattern based on the set of beam codebooks, wherein the set of parameters includes at least one of feedback information received from a UE or a set of KPIs identified by the BS; determining a type of angular grid as the first type of angular grid or the second type of angular grid, wherein the first and second type of angular grids include a first antenna gain and a second antenna gain, respectively; and select, from the set of beam codebooks, a beam codebook corresponding to the antenna beam pattern.