GRAN access port addressing method and apparatus
US6151495A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 8, 1998 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Oct 8, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates generally to the problem of finding the correct access port when an access attempt is made by a subscriber belonging to a core network that can not change access port for a particular subscriber. For core networks without support for terminal mobility, a certain subscriber is always accessed through the same access port. If a user moves far away from his "home access port" the access attempt will be unnecessarily rejected because the GRAN normally routes the connection to the closest access port. The present invention solves this problem by placing mapping tables in the IWUs to map core network subscriber identities to access port addresses. This mapping information is then used to route the access attempt to the correct access port. If the subscriber identity does not belong to either the accessed access port nor is it listed on the mapping table, the user is considered outside his allowed area and the access attempt is rejected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.