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[[5G NR]] (New Radio) is a new air interface developed by [[3GPP]] for the [[5G]] (fifth generation) mobile network.<ref></ref> It is supposed to be the global standard for the air interface of 5G networks.<ref></ref>
Specification 38 series<ref></ref> are used to provide the specifications for NR, the radio technology beyond LTE.
The study on NR within 3GPP started at 2015, and the first specification release is available by end of 2017. While the 3GPP standardization is still going on, the industry is already working on this, with expectation of the first commercial launch of 5G NR in 2019.
== Frequency bands ==
[[5G NR frequency bands|Frequency band for 5G NR]] are being separated into two different frequency ranges. First there is Frequency Range 1 (FR1) that includes sub-6GHz frequency bands. The other is Frequency Range 2 (FR2) that includes frequency bands in the [[mmWave]] range.<ref>[http://bit.ly/2CMv3Zu 5G/NR - FR/Operating Bandwidth]</ref>
== Network ==
Carriers around the world have been launching 5G NR networks.
== Numerology (sub-carrier spacing) for New Radio ==
NR supports 5 different sub-carrier spacing:
* 15 kHz: same as LTE, correspond to slot duration of 1 mili-second. Available in FR1.
* 30 kHz: slot duration 0.5 mili-second. Available in FR2.
* 60 kHz: slot duration 0.25 mili-second. Both normal Cyclic Prefix (CP) and extended CP may be used with 60 kHz sub-carrier spacing. Available in both FR1 and FR2.
* 120 kHz: slot duration 0.125 mili-second. This is the highest sub-carrier spacing for data path. Available in FR2.
* 240 kHz: slot duration 0.0625 mili-second. This is only possible for search and measurement purpose using the Synchronization Signal Block (SSB). Available in FR2.
The length of CP is inversely proportional to the sub-carrier spacing. It is 4.7 micro-second with 15 kHz, and 4.7 / 16 = 0.29 micro-second for 240 kHz sub-carrier spacing.
==References==
<references />
[[Category:5G (telecommunication)]]
[[Category:Mobile telecommunications]]
[[Category:Internet of things]]
[[Category:Computer-related introductions in 2018]]
[[Category:Wireless networking standards]]
[[Category:Mobile technology]]
[[Category:Mobile telecommunications standards]]
[[Category:Telecommunications]]
[[5G NR]] (New Radio) is a new air interface developed by [[3GPP]] for the [[5G]] (fifth generation) mobile network.<ref></ref> It is supposed to be the global standard for the air interface of 5G networks.<ref></ref>
Specification 38 series<ref></ref> are used to provide the specifications for NR, the radio technology beyond LTE.
The study on NR within 3GPP started at 2015, and the first specification release is available by end of 2017. While the 3GPP standardization is still going on, the industry is already working on this, with expectation of the first commercial launch of 5G NR in 2019.
== Frequency bands ==
[[5G NR frequency bands|Frequency band for 5G NR]] are being separated into two different frequency ranges. First there is Frequency Range 1 (FR1) that includes sub-6GHz frequency bands. The other is Frequency Range 2 (FR2) that includes frequency bands in the [[mmWave]] range.<ref>[http://bit.ly/2CMv3Zu 5G/NR - FR/Operating Bandwidth]</ref>
== Network ==
Carriers around the world have been launching 5G NR networks.
== Numerology (sub-carrier spacing) for New Radio ==
NR supports 5 different sub-carrier spacing:
* 15 kHz: same as LTE, correspond to slot duration of 1 mili-second. Available in FR1.
* 30 kHz: slot duration 0.5 mili-second. Available in FR2.
* 60 kHz: slot duration 0.25 mili-second. Both normal Cyclic Prefix (CP) and extended CP may be used with 60 kHz sub-carrier spacing. Available in both FR1 and FR2.
* 120 kHz: slot duration 0.125 mili-second. This is the highest sub-carrier spacing for data path. Available in FR2.
* 240 kHz: slot duration 0.0625 mili-second. This is only possible for search and measurement purpose using the Synchronization Signal Block (SSB). Available in FR2.
The length of CP is inversely proportional to the sub-carrier spacing. It is 4.7 micro-second with 15 kHz, and 4.7 / 16 = 0.29 micro-second for 240 kHz sub-carrier spacing.
==References==
<references />
[[Category:5G (telecommunication)]]
[[Category:Mobile telecommunications]]
[[Category:Internet of things]]
[[Category:Computer-related introductions in 2018]]
[[Category:Wireless networking standards]]
[[Category:Mobile technology]]
[[Category:Mobile telecommunications standards]]
[[Category:Telecommunications]]
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