Editing Random-access channel (section)

{{Short description|Channel used by wireless terminals}}
{{Redirect|RACH|other uses|Rach (disambiguation)}}
{{Refimprove|date=December 2012}}

A '''random-access channel''' ('''RACH''') is a shared channel used by wireless [[mobile phone|terminals]] to access the mobile network ([[Time-division multiple access|TDMA]]/[[FDMA]], and [[CDMA]] based network) for call set-up and bursty data transmission. Whenever mobile wants to make an MO (Mobile Originating) call it schedules the RACH. RACH is [[transport-layer]] channel; the corresponding [[physical-layer]] channel is PRACH. <ref> {{cite book
 | title = Introduction to 3G Mobile Communications
 | edition = 2nd
 | author = Juha Korhonen
 | publisher = Artech House
 | year = 2003
 | isbn = 9781580535076
 | page = 59
 | url = https://books.google.com/books?id=ZvcuAqL418YC&pg=PA59
 }}</ref>