Multiple-input multiple output system and method
US7616698B2 · kind B2 · utility
71Cited by
23References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2004 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Aug 27, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03426
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multiple-input multiple-output (MIMO) system can transmit on multiple antennas simultaneously and receive on multiple antennas simultaneously. Unfortunately, because a legacy 802.11a/g device is not able to decode multiple data streams, such a legacy device may “stomp” on a MIMO packet by transmitting before the transmission of the MIMO packet is complete. Therefore, MIMO systems and methods are provided herein to allow legacy devices to decode the length of a MIMO packet and to restrain from transmitting during that period. These MIMO systems and methods are optimized for efficient transmission of MIMO packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.