| 摘要 |
A method of allocating upstream bandwidth to at least a first upstream traffic flow and a second upstream traffic flow in a passive optical access network includes: a) associating a first timer to the first upstream traffic flow; and b) associating a second timer to the second upstream traffic flow. The method includes, during a given frame period: if the first timer is at its expiration value and the second timer is not at its expiration value; c) allocating a first portion of the upstream bandwidth to the first upstream traffic flow, d) verifying if a second portion of the upstream bandwidth is left after performing step c); and e) in the affirmative, allocating at least part of the second portion of the upstream bandwidth to the second upstream traffic flow before the second timer is at its expiration value, if the first timer and the second timer are not at their expiration value, f) allocating at least part of the upstream bandwidth to at least one of the first and second upstream traffic flows before respective timers are at their expiration values.
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