Patent ID: 7330433
Filing Date: 2008-02-12
Classification: H04L,H04W

Abstract:
1. A method for allocating resources of a wireless communications network to traffic to be transmitted from a wireless base station to wireless user equipment over a wireless downlink channel of the wireless communications network, the traffic including a plurality of packets, comprising: receiving a request for the traffic in the wireless base station from the wireless user equipment; estimating available resources from physical-layer resources of the wireless communications network and existing traffic on the wireless communications network, in which the estimating is based on feedback of a channel condition from the wireless user equipment; admitting the request only if sufficient resources are available for transmitting the traffic and the existing traffic; receiving a packet in a wireless base station to be stored in a selected queue of the wireless base station, in which there are a plurality of queues, and further comprising: classifying the packet received in the wireless base station into one of i classes, there being one queue for each class, in which the packet is further classified into a sub-class according to one of a plurality of modulation and coding levels depending on the channel condition, in which there are N levels, and a data rate R selecting the i determining a maximum delay of the selected queue; determining a start time, a finish time, and a queuing order; inserting the packet in the selected queue according to the start time, the finish time, and the queuing order; updating a weight of the selected queue; scheduling a next packet to be dequeued from the selected queue; and transmitting the next packet from the base station to the wireless user equipment over the wireless downlink channel of the wireless communications network.