Time-delay transmit diversity add-on to a multicarrier base transceiver system
US6957050B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2002 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | May 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0678
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
At least two passive antenna arrays of an existing multicarrier base station transceiver system are supplemented by an auxiliary antenna array to provide a system and method of enhancing reverse link sensitivity and reducing the effects of multipath fading in a wireless communication system without the need for modifications to the mobile station. The auxiliary antenna array provides a complementary transmit diversity path for the two passive antennas such that a predetermined time delay is implemented to a composite transmit signal and the delayed composite transmit signal is fed directly to the auxiliary antenna array. The delayed signal and the signals from the passive antenna arrays provide a reduced noise figure and time delay transmit diversity for the multicarrier BTS operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.