name: TDM
full_form: Time Division Multiplexing
context: To indicate the redundancy version (RV) of each HARQ transmission and to assist the Node B soft buffer management a two bit retransmission sequence number (RSN) is signalled from the UE to the Node B. The applied E-DCH RV index as described in 9.3 depends on the RSN for RSN < 3 and on TTI number for RSN = 3. (For 10 ms TTI the TTI number is equal to CFN. For 2 ms TTI the TTI number is equal to 5xCFN + sub-frame number). The RSN value for each initial transmission of an E-DCH transport block is 0. For the first retransmission the RSN value is 1, for the second retransmission the RSN value is 2 and for each further retransmission the RSN value is 3. Table 6.2.1 shows the RSN values depending on the transmission number. Table 6.2.1: RSN value for the initial transmission and for retransmissions
description: Time Division Multiplexing (TDM) is a digital multiplexing technique used in telecommunications to transmit and receive multiple signals over a common signal path. In the context of 3GPP TS 25.702, TDM is evaluated as part of the system performance for downlink solutions, specifically for E-WCDMA with TDM. The results show that while there is a loss in Tx Ec/Ior used by voice users when TDM is introduced, it leads to more effective usage of code resources and higher throughput for HSDPA when the number of voice users per cell is larger than eight.
explanation: TDM is classified as a Technology because it is a digital multiplexing technique used in telecommunications. The description details its application in 3GPP TS 25.702 and its impact on system performance, code resource usage, and throughput, further solidifying its classification as a technology.
section_title: 10.2	System evaluation results: Downlink, Solutions 2 and 4
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