Wireless communication method and apparatus for scheduling...

Multiplex communications – Communication techniques for information carried in plural...

Reexamination Certificate

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C370S352000, C370S395430, C370S468000

Reexamination Certificate

active

07408952

ABSTRACT:
A wireless communication method and apparatus for scheduling data having different priorities for a plurality of wireless transmit/receive units (WTRUs), (i.e., users) is disclosed. The normalized average active throughput for each of the WTRUs is computed. Then, the normalized channel quality for each of the WTRUs is computed based on a reported channel quality indicator (CQI) and the respective normalized average active throughput. A sequence of WTRUs is arranged in an order of decreasing normalized channel quality for each data priority. As much of the data as possible is scheduled for the WTRUs in the order of decreasing normalized channel quality of WTRUs. The scheduling is performed until there are no more physical resources available. Several of the WTRUs can be scheduled in the same transmission timing interval (TTI) if there are enough physical resources.

REFERENCES:
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patent: 2005/0059408 (2005-03-01), Tiedemann et al.
patent: 2005/0063389 (2005-03-01), Elliott et al.
patent: 2005/0129063 (2005-06-01), Razoumov et al.
patent: 2005/0169301 (2005-08-01), Jain et al.
Jeon et al., “Design of Packet Transmission Scheduler for High Speed Downlink Packet Access Systems”, Vehicular Technology Conference, IEEE, Spring 2002, pp. 1125-1129.
Ramiro-Moreno et al., “Network Performance of Transmit and Receive Antenna Diversity in HSDPA Under Different Packet Scheduling Strategies”, Vehicular Technology Conference, IEEE, Spring 2003, pp. 1454-1458.
Berger et al., “Interaction of Transmit Diversity and Proportional Fair Scheduling”, Vehicular Technology Conference, IEEE, Spring 2002, pp. 2423-2427.

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