Single carrier-frequency-division multiple access (SC-FDMA) physical uplink control channel (PUCCH) 2/2a/2b detection
US8848686B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2011 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Aug 9, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03159
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method are provided for Single Carrier-Frequency-Division Multiple Access (SC-FDMA) Physical Uplink Control Channel (PUCCH) format 2/2a/2b detection. A receiver accepts a plurality of multicarrier signals transmitted simultaneously from a plurality of transmitters, with overlapping carrier frequencies. For each multicarrier signal, a single tap measurement of time delay is performed using a Direction of Arrival (DoA) technique. After performing a back-end processing operation, PUCCH 2/2a/2b format signals are detected. The back-end processing operation is selected from one of the following options: (1) decorrelation, channel estimation, equalization per user, and decoding per user; (2) channel estimation, equalization, and decoding per user; (3) decorrelation plus maximum likelihood detection (ML) per user; and, (4) ML detection over all users. Selection criteria is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.