Communication system having means for enabling channel assignment to calling terminal according to priority
US6009331A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In assignment of radio channels to terminals for communication with a switching office, one of currently idle channels can be assigned to a calling terminal by use of a channel state memory in the office which memory stores channel numbers and terminal information currently using channels. The office further includes a terminal memory for storing the maximum number separately predetermined for each of fixed and mobile types of the terminals assignable to the channels. The calling terminal is rejected to be assigned with any idle channel when the maximum number is equal to the current number of terminals currently using channels which are same as the type of the calling terminal. In another aspect, the terminal memory further stores information that the fixed type has a priority. An idle channel is assigned to a calling one of fixed type terminals even when the maximum number for the fixed type is equal to or smaller than the current number. In other aspect, the channel state memory stores receiving signal strengths at terminals currently using the channels. When a calling is originated from one of fixed type terminals and when all of the channels are currently used, one of the mobi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.