Random perturbation-based beamforming method and apparatus for use in mobile communication system
US9577343B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 27, 2013 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Mar 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q25/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus configures a beamforming coefficient based on the signal strength information without collecting channel information by adjusting the phase of the antennas through random perturbation. An antenna control method of a base station in a wireless communication system using a beamforming technique includes measuring nth received signal strength at nth phase of at least one receive antenna, measuring (n+1)th received signal strength at (n+1)th phase shifted randomly from the nth phase in one of forward and backward directions, and configuring a beamforming coefficient with the phase at which the received signal strength is greatest through comparison of received signal strengths. The random perturbation-based beamforming method and apparatus of the present disclosure is capable of configuring the beamforming coefficient appropriate for the normal cellular environment using a plurality analog array antenna without channel estimation overhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.