SDMA multi-device wireless communications
US8923217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2010 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | May 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/38
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure includes systems and techniques relating to wireless communications. A described system, for example, includes a device configured to transmit signals, in a frequency band, to the wireless communication devices. The signals can include spatially steered first signals that concurrently provide data to the wireless communication devices. The signals can include one or more second signals to the wireless communication devices to control transmission of responses from the wireless communication devices in the frequency band. The device can monitor for the responses in the frequency band. The device can control, based on a lack of reception of an expected response, a transmission of a third signal in the frequency band to prevent a transmission from another wireless communication device different than the wireless communication devices. The third signal can include information to reschedule a transmission of a response from a wireless communication device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.