Wireless network having link-condition based proxies for QoS management
AssigneeAT&T Corp.
InventorsZhimei Jiang, Kin K. Leung
Life of this patent
Estimating the term…
Abstract
A wireless network includes a plurality of proxy servers located at various locations to selectively transform data based upon network conditions, such as link congestion. A queueing model for the network can be used to determine optimal operating parameters for the network.
Claims11
A method for transmitting data through an IP network comprising:
- determining network conditions associated with data being transmitted through the IP network, including determining a level of congestion at a radio link from a base station;
- selectively transforming the data at a proxy server coupled to the base station, based upon the network conditions;
- assigning a first threshold to a first user requesting a disproportionate amount of bandwidth;
- and
- setting the first threshold based upon expected performance from a queueing model of the network to reduce the level of congestion of the radio link.
A method for transmitting data through an IP network comprising:
- determining network conditions associated with data being transmitted through the IP network, including determining a level of congestion at a radio link from a base station;
- selectively transforming the data at a proxy server coupled to the base station, based upon the network conditions;
- and
- selecting a first threshold for aggregate user link congestion above which data for network users is transformed.
A method for transmitting data through an IP network comprising:
- determining network conditions associated with data being transmitted through the IP network, including determining a level of congestion at a radio link from a base station;
- selectively transforming the data at a proxy server coupled to the base station, based upon the network conditions;
- and
- selecting a first threshold for link congestion based upon quality of the data link as measured by data rate and/or packet error performance and based upon expected performance from a queueing model of the network.
A method for transmitting data through an IP network comprising:
- determining network conditions associated with data being transmitted through the IP network;
- selectively transforming the data at a proxy server coupled to a base station, based upon the network conditions, and
- selecting a control delay corresponding to a delay of a feedback signal from the base station of the radio link containing congestion level information to the proxy server using a queueing model to model network performance based upon the control delay.
A method for transmitting data through an IP network comprising:
- determining network conditions associated with data being transmitted through the IP network;
- selectively transforming the data at a proxy server coupled to a base station, based upon the network conditions, and
- establishing a plurality of thresholds for determining when the data transformation is performed and not performed.
A method for transmitting data through an IP network comprising:
- determining network conditions associated with data being transmitted through the IP network;
- selectively transforming the data at a proxy server coupled to a base station, based upon the network conditions, and
- establishing a first threshold level above which data transformation is performed.
A method for transmitting data through an IP network comprising:
- determining network conditions associated with data being transmitted through the IP network;
- selectively transforming the data at a proxy server coupled to a base station, based upon the network conditions, and
- establishing first, second, third and fourth states for determining whether data transformation is performed.
Dependencies are inferred from the claim text.