Predictive registration identification timer
US6385448B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Aug 10, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a new method for determining the point at which the mobile station is required to transmit a periodic registration to the base station when the mobile station is locked onto a DAMPS Digital Control Channel. The REGID system clock in the mobile station is replaced with a timing mechanism termed REGID_PER_TMR. Instead of tracking the REGID system clock from zero to NXTREG, REGID_PER_TMR is a function of the NXTREG permanent variable and the REGID_PER variable transmitted in the Registration Parameters FBCCH message. Thus, REGID_PER_TMR is calculated as a specific time period as a function of NXTREG and REGID_PER on power up of the mobile station and does not need to be stored within the memory of the mobile station. REGID_PER_TMR then functions as a countdown timer relative to NXTREG such that the mobile station automatically executes Periodic Registration Determination per IS 136.1, Section 6.3.9 on expiration of REGID_PER_TMR. Since the REGID system clock has been eliminated, the value of REGID is calculated on an as-needed basis from other parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.