Method and apparatus for beam switching in a wireless communication system
US6751206B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Apr 27, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a CDMA data communication system capable of variable rate transmission, utilization of beam switching techniques decreases the average interference caused by transmissions of a base station to subscriber stations within a cell, and in neighboring cells. Base stations utilize multiple transmit antennas, each transmitting signals at controlled amplitudes and phases, to form transmit signal corresponding to sector divisions. Data and reference signals are transmitted along sector division beams that alternate according to fixed time slots in order to increase system capacity and data rates by maximizing carrier-to-interference ratios (C/I) measured at subscriber stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.