Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-04-18
2009-10-13
Pham, Chi H. (Department: 2416)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S230000, C370S328000
Reexamination Certificate
active
07602791
ABSTRACT:
The present packet scheduling algorithm gives cellular network operators greater flexibility in adjusting the way resources are allocated among interactive best-effort data users. The present packet scheduling algorithm is capable of allocating radio resource dynamically, not only based on channel conditions, but also to achieve different performance trade-offs among users with different link qualities. According to the algorithm, channel quality is determined for each user. Channel efficiency is calculated and the channel efficiency value is used as the primary factor in weighting the delivery of packets to (or from) a given user. In a packet schedule weighting equation, a value of exponent may be varied from negative to positive to give good (or bad) users better service. However, performance of users with bad channel qualities degrades the performance of good channel users in a disproportionate manner.
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Jiang Zhimei
Shankaranarayanan Nemmara K.
AT&T Corp.
Mew Kevin
Pham Chi H.
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