[mindjiver]

Both TD-SCDMA and TD-LTE are standardised by 3GPP, just like WCDMA and FD-LTE. So they are not proprietary standards.

[seanmcdirmid]

TD-SCDMA are incredibly unstable technologies, or China mobile has implemented them poorly; I'll take 3G on China Unicom anyday over CMCC's 3G.

The problem with these home grown "standards" is that no one else uses them and they never get the international support they need to become stable.