Technique for effectively managing processing loads in a communications arrangement
US6577871B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1999 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | May 20, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a wireless communications service where the service area is divided into multiple cells, a common workstation (COWS) is connected to multiple cell workstations (CEWSs) in hierarchial relation to realize the service. The COWS performs call processing and other tasks common to all cells served by the CEWSs. The latter perform call setups, paging message distributions, and other cell specific operations. First and second central processing unit (CPU) overload control routines are run on the COWS and each CEWS, respectively, to manage their CPU loads. Specifically, different defense actions may be applied by the first and second routines to alleviate the CPU loads of the COWS and CEWS, respectively. These defense actions include COWS's dropping a fraction of paging messages to be processed thereby, and CEWS's dropping a fraction of paging messages, short message service (SMS) broadcast messages and radio frequency (RF) signal strength messages to be processed thereby. In addition, depending on the CPU loads of the COWS and the respective CEWSs, selected classes of mobile units are temporarily denied the wireless communications service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.