Why was CSI-RS introduced into NR?
Signal detection in wireless communication ensures signal quality by measuring a radio link’s characteristics. Devices like the user equipment (UE) analyze downlink channel quality…
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Browse 207 free articles, standards and practical guides about TELECOM RF.
207 articles in this topic
Carrier Aggregation (CA) Concept in 5G
Enhanced Mobile Broadband (eMBB) is a critical 5G application scenario enabling high-data-rate services like 2K/4K video streaming and AR/VR. To achieve the exceptionally high…
Read articleMobility Load Balancing in LTE | MLB Feature
In wireless networks, where user locations and service demands change dynamically, load balancing is critical for optimal performance. As an RF Optimization Engineer, I…
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What is VoLTE? IMS, EPS Registration, Call Flows and Procedure.
VoLTE stands for voice over LTE. VoLTE services depend on seamless integration between LTE (and existing 3G/2G) networks and the IMS. The connection is…
Read articleHow to Optimize VoLTE uplink scheduling?
Upstream enhanced VoIP scheduling switch & upstream VoIP pre-scheduling switch. This switch is used to control whether to perform voice pre-scheduling for VoIP users…
Read articleVoLTE to VoLTE Call Troubleshooting
A VoLTE to VoLTE call occurs when both users are in LTE coverage supporting VoLTE. This process includes call setup on both originating and…
Read articleWhat is SRVCC? SRVCC Failure Troubleshooting
SRVCC (Single Radio Voice Call Continuity) enables seamless handover of IMS voice services from LTE to legacy UTRAN or GERAN networks when leaving LTE…
Read articleICS Call Setup and Failures
ICS (IMS Centralized Services) supports VoLTE UEs in CS coverage (2G/3G) when LTE coverage is unavailable, using IMS for call setup. This version covers…
Read articleVoLTE Call Drop Optimization and Troubleshooting.
A VoLTE call drop occurs when an ongoing call is abnormally terminated without successful completion. The expected completion involves the exchange of a BYE…
Read articleWhat is Receive Diversity Gain in LTE?
Receive diversity gain is a method used in LTE to improve signal reliability and system performance by reducing the effects of signal fading. This…
Read articleWhat are main RRC counters, failure causes and solution in LTE?
This article is about RRC counters used to find RRC failures (LTE), Failure Causes and Solution. After, we discussed one by one RF optimization…
Read articleWhat are main Load Control Parameters in LTE? Possible Solutions
Here i explain which parameter are necessary and mostly used for load control and balancing in LTE. Below table shows parameter names, IDs and…
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