Systems and methods for reduced latency tracking area selection
US9872269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2009 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Apr 6, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W92/045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Some embodiments provide methods for selecting tracking areas, including: receiving a plurality of messages from a plurality of base transceiver stations, each message including a list of tracking areas handled by the base transceiver station from which the message is received; performing domain name system queries for the tracking areas to retrieve information identifying serving gateways serving the tracking areas; based on the information identifying serving gateways, storing, in a local memory, a list of tracking area identities handled by each identified serving gateway; receiving a message from user equipment indicating a first tracking area; selecting at least one tracking area handled by a serving gateway serving the first tracking area based on the list of tracking areas handled by each identified serving gateway stored in the memory; and sending a tracking area identity list to the user equipment based on the selected at least one tracking area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.