MIMO telecommunication system with accelerated sphere decoding
US7317771B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 2003 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Jun 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/71057
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for estimating a plurality of symbols transmitted by a first plurality of transmit antennas at a given emission time or a plurality of symbols subjected to a space-time dispersion coding prior to transmission by the first plurality of transmit antennas over a second plurality of transmission times, the method using the signals received by a third plurality of receive antennas, each symbol belonging to a modulation constellation. The method includes forming a vector representative of said received signals at a reception time or at a plurality of consecutive reception times; searching the closest neighbour of said vector among candidate vectors belonging to a lattice of points generated by a plurality of generating vectors, wherein the components of said vector are reordered according to an ordering rule prior to a search.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.