name: SCTD
full_form: Space Code Transmit Diversity
context: In this section, we look at the gains in average UE throughput for pre-decoding IC UE. Table 8 and Table 9 show the gain of pre-decoding IC receiver over Type 3i receiver in PA3 channel, both with and without CQI mismatch. The IC gain is significantly large independently if the CQI mismatch exists or not. As illustrated in Section 7.2.1.1, interferer signal used in this simulation has different modulation type and number of codes, but the same power. For Type 3i receiver, the interferer signal is transmitting with full power in this simulation. Table 9: Pre-decoding IC gains in average LPN UE throughput in HetNet scenario (PA3) Table 10: Pre-decoding IC gains in average Cell2 UE throughput in HomoNet scenario (PA3) From Table 9 and Table 10, the following observations can be made. We firstly analyze the pre-decoding IC gains over Type 3i. In HetNet scenario, for L1~L4, interference strength is stronger than serving signal strength. When there is CQI mismatch issue, the IC gain at L1 is
description: Space Code Transmit Diversity (SCTD) is a downlink transmit diversity scheme used in the Universal Mobile Telecommunications System (UMTS) to improve the reliability and capacity of beacon channels. It involves transmitting multiple copies of the same signal over different antennas, using space-time coding to exploit the spatial diversity of the radio channel.
explanation: SCTD is classified as a Technology because it is a method or technique used to enhance the performance of UMTS beacon channels. Its application in improving reliability and capacity directly relates to technological advancements in telecommunications.
section_title: 5.5.4	SCTD transmission scheme for beacon channels
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