5.4 Transmit Diversity for DL Physical Channels

25.2213GPPPhysical channels and mapping of transport channels onto physical channels (TDD)Release 17TS

Table 8 summarizes the different transmit diversity schemes for different downlink physical channel types that are described in [9].

Table 8: Application of Tx diversity schemes on downlink physical channel types
"X" – can be applied, "–" – must not be applied

Physical channel type	Open loop TxDiversity		Closed loop TxDiversity
	TSTD	SCTD(*)
P-CCPCH	–	X(†)	–
S-CCPCH	X(**)	X(†)	—
SCH	X	–	–
DPCH	–	–	X
PDSCH	–	X	X
PICH	–	X	–
MICH	–	X(†)	–
HS-SCCH	—	X	X
HS-PDSCH	—	X	X
E-AGCH	—	X	X
E-HICH	—	X	—

(*) Note: SCTD may only be applied to physical channels when they are allocated to beacon locations.

(**) Note: TSTD may not be applied to S-CCPCH in beacon locations.

(†) Note: that when the entire carrier is dedicated to MBSFN operation SCTD shall not be applied.