Call establishment in highly congested network environment
US8688166B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2011 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | May 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W48/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication device establishes a connection in a congested wireless communications network environment by systematically reducing a probability of attempting to connect to a strongest, but overly-congested, cell. A transceiver of the communications device attempts at least one first Random Access Channel (RACH) procedure with a first cell that is currently designated as a serving cell. A RACH controller of the communications device detects a failure to successfully connect to the first cell via the at least one first RACH procedure, autonomously determines, based at least on a probability value, which is greater than 0% and less than 100%, whether to de-prioritize the first cell for a period of time, and, in response to determining to de-prioritize the first cell, reduces a priority value assigned at the UE to the first cell for cell selection/reselection, and assigns a selected time period during which the priority value remains reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.