Upstream Bandwidth

Some articles on upstream bandwidth, upstream:

Passive Optical Network - Upstream Bandwidth Allocation
... The OLT is responsible for allocating upstream bandwidth to the ONUs ... Because the optical distribution network (ODN) is shared, ONU upstream transmissions could collide if they were transmitted at random times ... to use a defined interval of time for upstream transmission ...
G.992.3 - Annex Versions
... for operation of ADSL over POTS with extended upstream bandwidth (Annex L) G ATU-x performance requirements for region B (Europe) G.1 Performance requirements ... ADSL band to use the voice frequency range, 64 upstream tones for an additional 256 kbit/s upstream data rate over ISDN Lines ... to work at a distance of 7 kilometres (23,000 ft) M Increased Upload speeds Upstream/downstream frequency split has been shifted from 138 kHz up to 276 kHz, allowing maximum upstream bandwidth to be increased ...