name: TDD
full_form: Time Division Duplexing
context: For FDD single carrier or CA, UE is required to fulfill SDR tests specified in section 8.7.9. For TDD single carrier or CA, UE is required to fulfill SDR tests specified in section 8.7.10. For TDD-FDD CA, UE is required to fulfill SDR test in section 8.7.11. For FDD DC, UE is required to fulfill SDR tests specified in section 8.7.13. For TDD DC, UE is required to fulfill SDR tests specified in section 8.7.14. For TDD-FDD DC, UE is required to fulfill SDR test in section 8.7.15. For single carrier or CA SDR tests, CA configuration, bandwidth combination and MIMO layer on each CC is determined by following procedure. - Select one CA bandwidth combination among all supported CA configurations with bandwidth combination and MIMO layer on each CC that leads to largest equivalent aggregated bandwidth among all CA bandwidth combinations supported by UE. Equivalent aggregated bandwidth is defined as where is number of CCs, and is MIMO layer and bandwidth of CC . - When there are multiple sets of {CA configuration, bandwidth combination, MIMO layer} with same largest aggregated bandwidth, select one among sets with largest number of 4 layer CCs. - The procedure applies also for single carrier using operating band instead of CA configuration, and bandwidth instead of bandwidth combination. For DC SDR tests, DC configuration, bandwidth combination and MIMO layer on each CC is determined by following procedure. - Select one DC bandwidth combination among all supported DC configurations with bandwidth combination and MIMO layer on each CC that leads to largest equivalent aggregated bandwidth among all DC bandwidth combinations supported by UE. Equivalent aggregated bandwidth is defined as where is number of CCs, and is MIMO layer and bandwidth of CC . - When there are multiple sets of {DC configuration, bandwidth combination, MIMO layer} with same largest aggregated bandwidth, select one among sets with largest number of 4 layer CCs. For UEs with no supported 4Rx RF bands the applicability rule in 8.1.2.3C is not applied for SDR tests.
description: Time Division Duplexing (TDD) is a technology used in wireless communication systems, including those specified by 3GPP, to allow for the simultaneous transmission and reception of data over a single frequency band. In the context of Evolved Universal Terrestrial Radio Access (E-UTRA), TDD is utilized in various configurations such as single carrier, carrier aggregation (CA), and dual connectivity (DC) to optimize network performance and user equipment (UE) capabilities.
explanation: TDD is classified under the Technology category because it represents a specific method of managing data transmission and reception in wireless networks. The provided context from 3GPP TS 36.101 highlights its application in different scenarios, such as CA and DC configurations, emphasizing its role in enhancing network efficiency and UE performance.
section_title: 8.1.2.3C Applicability and test rules for SDR tests for 4Rx capable UEs
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