Active queue management for wireless communication network uplink

US8964539B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8964539-B2
Application numberUS-200913257631-A
CountryUS
Kind codeB2
Filing dateJul 1, 2009
Priority dateMar 20, 2009
Publication dateFeb 24, 2015
Grant dateFeb 24, 2015

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Abstract

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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.

First claim

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What is claimed is: 1. A method implemented by a base station for active queue management of a transmit buffer in a user equipment transmitting packets to the base station, comprising: estimating, by the base station, a size of the transmit buffer by calculating the amount of data not yet served from the transmit buffer of the user equipment, based on buffer status reports or buffer status indicators received from the user equipment, and an amount of served or scheduled data; es…

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What does patent US8964539B2 cover?
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 st…
Who is the assignee on this patent?
Susitaival Riikka, Tan Yifeng, Torsner Per Johan, and 1 more
What technology area does this patent fall under?
Primary CPC classification H04L69/16. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).