Operational constraints in LTE TDD systems using RF agile beam forming techniques
US9137675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2013 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Oct 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/046
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems having improved capabilities are described for providing communications to a plurality of cellular mobile devices through generating m different sets of fixed position patterns of N RF beams across the ten contiguous one-millisecond LTE sub-frames of each LTE time-division duplexing (TDD) frame from an agile beam forming antenna system of a cellular LTE base transceiver station. The cellular LTE base transceiver station is in RF TDD communication with the plurality of cellular mobile devices within a cell coverage area of the cellular LTE base transceiver station. Each RF beam covers a sub-area of the cell coverage area where the m times N RF beam patterns cover the area of the cell coverage area. The value of m is 1≦m≦3 and each one of the m sets of N RF beam patterns is generated in one or more of the non-S one-millisecond sub-frames of an LTE frame. The m sets of N RF beams are generated across any ten contiguous one-millisecond sub-frames. The value of m is determined at least in-part from a selected LTE TDD uplink/downlink (U/D) configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.