Adaptive beamforming methods and systems that enhance performance and reduce computations
US7339979B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2004 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Feb 13, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/086
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Wireless communication systems and methods are provided that a) enable progressive beamforming with antenna arrays and subarrays, b) provide current and delayed versions of data-carrying signals, and c) provide time-of-arrival of data-carrying signals. The progressive beamforming substantially reduces computational complexity. The current and delayed versions of data-carrying signals facilitate optimization of spatial information and optimization of information from non-coherent delays (which are delays beyond the handling capability of a system's modulation). The time-of-arrival information is used to facilitate a single matrix inversion which substantially reduces the complexity of conventional beamforming computations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.