Method and apparatus for cooperative communications between groups of communication units
US8675482B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2009 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Jun 5, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/0075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Enhanced reception in a communication system is achieved by synchronously combining transmissions from a cluster of transmitting communication devices at a group of distant receiving communication devices. The transmitting communication devices coordinate their transmissions such that each device transmits the same signal on the same communication channel at different transmission times. As a consequence of the spatial diversity of the transmitting and receiving communication devices and the temporal diversity of the transmission times, the transmitted signals arrive at the receiving communication devices at different times. The receiving communication devices each essentially treat the different transmitted signals as though they were different multipath signals from a single transmitting communication device. This permits detection at a greater range or with a lower bit error rate. In addition, the many-to-many configuration enables a communication protocol to be maintained without modification of the protocol or termination (or interruption) of a protocol message sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.