3GPP (not to be confused with the old tech 3G, this is a consortium sort of like the W3C for the web or the ISO for ...tons of stuff) are the defacto group who meets up and agrees on what gets done. They meet up and agree upon standards every so often as described here[1] (release 8 and 9 delineating LTE, LTE-A, and the transitional 3G -> LTE stuff, along with tons of other stuff).
Releases 13 and 14 standardized 5G[2] earlier this year. Here's the set of documents that I'm pretty sure shouldn't be public (you typically have to be a member to get access). Bad sysadmins, disable DirectoryIndexes ! The R13 and R14 zips have quite a bit of descriptive content. Here's the marketing mumbojumbo stuff, for completeness[3].
Releases 13 and 14 standardized 5G[2] earlier this year. Here's the set of documents that I'm pretty sure shouldn't be public (you typically have to be a member to get access). Bad sysadmins, disable DirectoryIndexes ! The R13 and R14 zips have quite a bit of descriptive content. Here's the marketing mumbojumbo stuff, for completeness[3].
[1] https://en.wikipedia.org/wiki/LTE_(telecommunication)
[2] http://www.3gpp.org/ftp/Information/WORK_PLAN/Description_Re...
[3] http://www.4gamericas.org/files/3714/4224/8256/Executive_Sum...