TDD + UMTS

Hello,

I'd like to know how I can determine the number of services at 2 Mb/s or 800
Kb/s, 384 Kb/s per cell
I can offer if I use the TDD mode and the radio environment is the
picocellule. We assume that all users
are interested by multicast services.

As I understand, the TDD frame is composed of 15 slots, 14 of them are used
for uplink and downlink data.
The following table sums up the throughput used on the TDD radio interface.

----------------------------------------------------------------------------
1 slot .......
14 slots
----------------------------------------------------------------------------
1 code 26 Kbps 364 Kbps
----------------------------------------------------------------------------
........ ....... ...........
----------------------------------------------------------------------------
8 codes 208 Kbps 2912 Kbps
----------------------------------------------------------------------------
Is it possible to have a frame just for downlink data (14 slots used)? So we
have 1500 Kbps as payload. But
the principle of Time Division Duplex is to allow multiple users to share
the radio ressource by time slot

I'm thanking you in advance