Beam Selection for Distorted Electric Field Mitigation
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Solution Overview
Problem
Existing beamforming techniques in wireless communications are sub-optimal in certain configurations, particularly in reducing the effects of a distorted electric field, especially in out-of-coverage regions.
Innovation Solution
A user equipment (UE) selects a set of beams to generate energy in an out-of-coverage region based on gain parameters associated with its antennas, which are determined for communications in an in-coverage region. The UE uses iterative techniques or calculations with codebook beams to select the beams, ensuring they correspond to basis vectors for the beamspace of both regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing beamforming techniques are used for communications in in-coverage region, then communication performance is maintained, but the ability to handle distorted electric field in out-of-coverage region deteriorates
Solution Approach 1:
The patent segments the coverage area into in-coverage and out-of-coverage regions, and separately optimizes beamforming techniques for each region. The UE determines a set of beams for out-of-coverage region based on gain parameters from in-coverage region, allowing independent optimization for each scenario while maintaining overall system performance.
Solution Approach 2:
The patent changes the beam selection parameters dynamically based on the coverage region. The UE selects different beam sets for out-of-coverage versus in-coverage communications, using gain parameters calculated from in-coverage data to optimize out-of-coverage performance. This parameter adaptation resolves the contradiction by allowing region-specific optimization.
2Productivity
If beam selection is optimized for in-coverage region, then communication efficiency in in-coverage is improved, but performance in out-of-coverage region deteriorates
Solution Approach 1:
The patent creates a universal beam selection mechanism that serves multiple functions. The UE uses gain parameters from in-coverage region to determine beam sets for out-of-coverage region, making the same beamforming framework applicable to both scenarios. This multi-functionality allows the system to maintain efficiency in in-coverage while improving reliability in out-of-coverage without requiring separate optimization systems.
3Object-affected harmful factors
If traditional beamforming is used, then system complexity is kept low, but ability to reduce distorted electric field effects increases
Solution Approach 1:
The patent applies preliminary action by pre-determining beam sets and gain parameters based on in-coverage region characteristics before actual out-of-coverage communications occur. The UE calculates gain parameters and identifies appropriate beam sets in advance, which then can be directly applied to out-of-coverage scenarios without requiring complex real-time optimization, thus reducing the harmful effects while managing complexity.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to select a set of beams to generate energy in a first coverage region (e.g., an out-of-coverage (OOC) region) to reduce the effects of a distorted electric field. The UE may select the set of beams based on gain parameters associated with a set of antennas at the UE, where the gain parameters are determined for communications in a second coverage region (e.g., an in-coverage (INC) region). In some examples, the UE may use iterative techniques to select the beams. In some examples, the UE may select the set of beams based on calculations using a set of codebook beams associated with the second coverage region. In some examples, the UE may additionally select the set of beams for communications in the second coverage region.