DMHD and TMHD features in WCDMA

Hello Eperts.

Anyone knows about DMHD and TMHD related features in WCDMA?

DMHD is a handover decision process that occurs when a mobile device is in a dedicated mode, such as during a voice call or a high-priority data session. The purpose of DMHD is to determine if a handover from the current cell to another cell is necessary to maintain the quality of service.

TMHD is a handover decision process that applies to mobile devices when they are in traffic mode, which includes regular data communication, but not necessarily high-priority or real-time services like voice calls