System and method for reception mode switching in dual-carrier wireless backhaul networks
US9635571B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2014 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Nov 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/0453
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for reception mode switching in a dual-carrier fixed wireless backhaul network is disclosed. The primary carrier is a licensed band. The secondary carrier may be a lower cost shared band or an unlicensed band. Multi-mode Remote Backhaul Modules (RBMs) comprise a first Radio Frequency (RF) chain with antenna elements for receive/transmit (RX/TX) on the primary carrier and a second RF chain with antenna elements for RX/TX on the secondary carrier. The Multi-mode RBMs adaptively switch from one reception mode to another with resource borrowing of RF and antenna elements, e.g. the secondary carrier RF chain and antenna elements can be borrowed for the primary carrier, for better reception capability for the primary carrier, reducing the number of link-budget and interference-challenged RBMs, and improving system performance. The system may comprise a dual carrier and single carrier Multiple-Input Multiple-Output (MIMO) system with variable antenna topology, having flexibility to switch dynamically between different operational modes depending on performance metrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.