What is the purpose of having Multi-Antenna processing in LTE?

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LTE is supposed to have high data rate and throughput compared to previous technologies. For this reason and purpose LTE supports several different multi-antenna techniques and processing in order to enable high spectral efficiencies in a wide range of scenarios. Mainly there are three multi-antenna processing schemes which run in LTE. There are different flavors […]

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What are the Uplink multi-antenna schemes in LTE?

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Only the downlink in LTE supports multi-antenna processing in the form of spatial multiplexing for a single UE. So far, two multi-antenna related techniques are explicitly supported in the LTE standard for uplink: UE transmit antenna switching In antenna switching, the UE may transmit over either of two transmit antennas. This corresponds to a poor […]

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Centralized Unit – Distributed Unit (CU-DU) Split Base Station | 5G Systems Base Station Architecture

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​There are different base station architecture types specified in 5G Systems (5GS).Standalone Base StationNon-Standalone Base StationCU-DU Split Base Station​In this post, we will talk about Centralized Unit (CU) – Distributed Unit (DU) Split Base station architecture. ​Centralized Unit (CU) and Distributed  Unit (DU) Split Base Station Architecture ​General Structure ​​The general structure of CU-DU split architecture is […]

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3 Types of User Plane Bearer for EN-DC Base Station in 5G

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​Today we are going to discuss about the 3 types of User Plane Bearers supported by EN-DC Base Station.  In case you are not aware of EN-DC Base Station.  EN-DC refers to New Radio Dual Connectivity (EN-DC), where E-UTRA refers to 4G air-interface and New Radio refers to the 5G air-interface. EN-DC also means that E-UTRA […]

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Which UEs Support E-UTRA and New Radio Dual Connectivity in UEs which support

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​The base station architecture deployment options in case of Non-standalone deployment are depicted in Figures 1, 2 and 3 below. Option 3, Option 3a and Option 3x. ​Figure 1: Non-Standalone Base Station Architectures using the 4G Core Network Option 3​Figure 2: Non-Standalone Base Station Architectures using the 4G Core Network Option 3a​Figure 3: Non-Standalone Base Station […]

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