name: TSTD
full_form: Time Switched Transmit Diversity
context: only) Table 5.1e: 3.84 Mcps TDD HS-DSCH physical layer categories Table 5.1f: RLC and MAC-hs parameters for 3.84 Mcps TDD HS-DSCH physical layer categories Table 5.1f-a: 7.68 Mcps TDD HS-DSCH physical layer categories Table 5.1f-b: RLC and MAC-hs parameters for 7.68 Mcps TDD HS-DSCH physical layer categories Table 5.1g: FDD E-DCH physical layer categories UEs of Categories 1 to 6 support QPSK only. UEs of Category 7 supports QPSK (2 ms TTI, 10 ms TTI) and 16QAM (2 ms TTI). UEs of Category 8 support only QPSK in Dual Cell E-DCH operation. UEs of Category 9 support QPSK and 16QAM in Dual Cell E-DCH operation. UEs of Category 10 support QPSK, 16QAM and 64QAM. UEs of Category 11 support Uplink MIMO with QPSK and 16QAM. UEs of Category 12 support Uplink MIMO with QPSK, 16QAM and 64QAM. UEs of Category 8, 9, 10, 11 and 12 support MAC-i/is. The values in the following Table 5.1h reflect the total buffer sizes of HS-DSCH and E-DCH categories for simultaneous HS-DSCH/E-DCH operation. Table
description: Time Switched Transmit Diversity (TSTD) is a technique used in wireless communication systems to improve signal quality and reliability. In the context of 3GPP TS 25.433, TSTD diversity is activated by the Node B for all S-CCPCHs defined in the message that are not beacon channels, based on the inclusion and setting of the TSTD Indicator IE in the COMMON TRANSPORT CHANNEL SETUP REQUEST message.
explanation: TSTD is classified as a Technology because it refers to a specific technique used in wireless communication systems. The context highlights its application in the Node B for improving signal quality and reliability, which falls under the category of technological standards.
section_title: 8.2.1.2	Successful Operation
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