Symbol combining device for multi-path diversity
US6999719B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2002 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Aug 4, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70707
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A symbol combining device for multi-path diversity includes a plurality of demodulation circuits for demodulating received signals, a common memory for storing outputs of the demodulation circuits, a symbol combiner for receiving the outputs of the common memory corresponding to the demodulation circuits and for combining the outputs, and a memory controller for controlling the common memory to timely separate the write and read operations. To timely separate the write and read operations, the memory controller controls the common memory in order that the demodulation circuits sequentially access the common memory and the resultant outputs of the demodulation circuits are written in the common memory, and the symbol combiner reads the outputs of the demodulation circuits written in the common memory sequentially. Because the deskewer of the symbol combining device is constructed of a single memory, not FIFO by channels, the required number of gates is about 40% of the FIFO by channels, and the size of the symbol combining device is reduced to 40%. Further, the symbol combining device can be easily adaptable to change of the number of channels for various services.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.