Air interface scheduler for wireless communication networks

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

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Details

C455S452100, C455S453000, C455S517000, C370S231000, C370S235000, C370S395400

Reexamination Certificate

active

06917812

ABSTRACT:
A scheduler permits efficient and flexible scheduling between simultaneous users of an air interface in a wireless communication networks in consideration of desired QoS parameters and class-based preferential scheduling. By appropriately defining the utility functions used by the scheduler in user scheduling, scheduling may, among other goals, be biased toward satisfaction of average or minimum throughput constraints, be biased toward meeting QoS delay constraints, or be biased based on combined considerations of these goals. Where QoS delay constraints are considered, the scheduler might adopt a dynamic approach to updating delay terms in the utility functions, such that users are not over-served or underserved relative to a desired quality of service.

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‘CDMA Data Qos Scheduling on the Forward Link with Variable Channel Conditions’, Matthew Andrews, Krishnan Kumaran, Kavita Ramanan, Alexander Stolyar, Rajiv Vijayakumar, Phil Whiting, Bell Labs, Lucent Technologies 600-700 Mountain Avenue, Murray Hill, NJ 07974-0636 (45 pages) Apr. 2000.
A Study of Scheduling Algorithms for a Mixture of Real and Non-Real Time Data in HDR, Sanjay Shakkottai, Coordinated Science Laboratory and Department of Electrical and Computer Engineering, Univ. of Illinois at Urbana-Champaign, Alexander Stolyar, Mathematical Sciences Research Center, Bell Labs, Lucent Technologies, 600 Mountain Avenue, Murray Hill, NJ 07974 (20 pages) Oct. 2000.
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