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Work item:
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L.Suppl.47 to ITU-T L-series (ex L.Suppl.resource_sav)
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Subject/title:
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Examples of resource saving within the ICT Sector
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Status:
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Agreed on 2022-07-01 [Issued from previous study period]
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Approval process:
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Agreement
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Type of work item:
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Supplement
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Version:
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New
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Equivalent number:
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-
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Timing:
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-
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Liaison:
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-
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Supporting members:
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NTT, NEC
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Summary:
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In order to achieve sustainable growth under the constraints of the environment and resources, it is necessary to radically change conventional waste and recycling measures. Conventional waste countermeasures have mainly been recycling (reuse as a raw material), but in addition to this, reduction (control of waste generation) and reuse are also important.
Since twisted pair cables, such as 4-pairs of unshielded twisted pair (UTP) or shielded twisted pair (STP) cables, are mainly used in various local area networks (LANs), a large amount of copper resources are still required to provide Internet services around the world. If fewer number of pairs can achieve the same communication performance as 4-pair type, the resource saving in the network can be realized.
This Supplement provides various examples of resource saving in building systems, factories, plants and home applications due to the progress of resource saving within the ICT Sector, one of which is an example in the home network by using the Single-pair Ethernet (SPE) technology.
Another example is related to semiconductor manufacturing technologies. Semiconductor dies (also known as chips) are currently mostly manufactured on disks (known as wafers) made of silicon, arsenide gallium or gallium nitride. Those chips have a rectangular shape which leads to losses on the edge of the wafer. The bigger the die the more important the losses. Some techniques used in the current industry are introduced for personal computer or server processors (CPU) and for graphics processing units (GPU) to reduce these losses.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2020-11-11 15:03:49
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Last update:
2022-08-18 16:02:55
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