Radiotelephone communication systems and methods that map an access request into a predetermined random access channel slot to identify a nearest gateway to a radiotelephone
US6014562A · kind A · utility
19Cited by
7References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 19, 1998 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | May 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An access request by a radiotelephone for one of a plurality of radiotelephone traffic channels is mapped into a predetermined one of a repeating series of Random Access CHannel (RACH) slots, based upon information concerning the access request by the radiotelephone. Accordingly, the RACH slot in which the access request is placed, conveys additional information about the access request. This additional information can be conveyed and decoded without the need to modify the RACH protocol or to extend the length of the RACH slots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.