Process for controlling retransmission of messages from transmitting stations belonging to a cellular system
US4866788A · kind A · utility
Inventors
Key dates
| Filing date | Oct 23, 1987 |
| Grant date | Sep 12, 1989 |
| Priority date | — |
| Expiry date | Oct 23, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0841
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A process for controlling retransmission of messages from transmitting stations belonging to a cellular system. The stations transmit messages to a fixed base station, e.g. for requesting the allocation of a dedicated channel for the communication. These messages pass via a single transmission channel shared by a large number of transmission stations. A retransmission of these messages takes place when at least two stations have simultaneously attempted to use this common channel, so that there is a collision and a blockage of the stations in question. The probability of the retransmission of a request message via the shared channel is a function of the state of the shared channel and the power received by the base station from the transmitting station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.