Active queue management for wireless communication network uplink
US8964539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Dec 10, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to the teachings presented herein, a base station implements active queue management (AQM) for uplink transmissions from user equipment (UE), such as a mobile terminal. The base station, e.g., an eNodeB in a Long Term Evolution (LTE) network, uses buffer status reports, for example, to estimate packet delays for packets in the UE's uplink transmit buffer. In one embodiment, a (base station) method of AQM for the uplink includes estimating at least one of a transmit buffer size and a transmit buffer queuing delay for a UE, and selectively dropping or congestion-marking packets received at the base station from the UE. The selective dropping or marking is based on the estimated transmit buffer size and/or the estimated transmit buffer queuing delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.