3GPP Release-15 UE Cat Types, Throughput, Modulation, and Supported UE DL / UL Combinations. UE Category information is used to allow the eNB to communicate effectively with all the UEs connected to it. The use-Category defines a combined uplink performance capability and downlink performance capability. The UE devices like Mobile handset, dongle or other equipment are … Read more
5G NR User Plane Protocol, What’s new Over LTE in 5G NR 3GPP has released specification 38.300 V1 this month about NR and NG-RAN Overall Description: Stage 2, This standard comes with the detailed descriptions about 5G NR network and Protocol architecture. In this post, we have come with the detailed information about the User … Read more
5G NR RRC State Transitions 5G NR is supposed to inter-work with the legacy technologies like LTE (E-UTRA), UMTS (UTRA) and GSM/GPRS (GERAN). New Radio has introduced a new RRC state called “RRC INACTIVE” to meet the requirement of 5G services. New RRC Inactive State Characteristics Maintenance of context information by the UE and the … Read more
The Radio Resource Control (RRC) protocol is used in on the Air Interface. The major functions of the RRC protocol include connection establishment and release functions, broadcast of system information, radio bearer establishment, reconfiguration and release, RRC connection mobility procedures, paging notification and release and outer loop power control.By means of the signaling functions, the RRC configures the user … Read more
5G NR Radio Protocol Stack (Layer 2 and Layer 3) 3GPP has released specification 38.300 V1 this month about NR and NG-RAN Overall Description: Stage 2, This standard comes with the detailed descriptions about 5G NR network and Protocol architecture. NR Radio User plane and Control Protocol Stack is shown in below figures: Figure #1 … Read more
5G NG Identities (UE and Network Identifiers) UE Identifiers C-RNTI: This is a unique identification, which is used as an identifier of the RRC Connection and for scheduling purposes Temporary C-RNTI: This identification used for the random access procedure, Random value for contention resolution: during some transient states, the UE is temporarily identified with a … Read more
5G Transport Network Requirement for Indian Telecom By Subrata Sen There are few people whom we meet and connect instantly. Recently, We met Subrata Sen, (Head, Fiber/Transport Planning at Bharti Infratel Ltd) and veteran in telecom industry during a conference, we found resonance immediately. During our conversation, we had long discussions about upcoming technologies and how … Read more
5G Self Backhaul- Integrated Access and Backhaul Self-Backhauling Concept Self-backhauling defined as when the access i.e. Base station – Mobile and the backhaul (Base Station to Base Station or Base Station to Core Network) share the same wireless channel. Below picture depict the same. Here the center base station (gNB #1) does have fiber backhaul … Read more
5G Channel Models: Requirements and Deployment Scenarios Propagation Channel Model: A channel model is also known as radio wave propagation model, it characterizes radio wave propagation as a function of frequency, distance, environment, and other factors. In other words, we can say that channel model provides us rough idea how much distance a signal can … Read more
5G NR gNB Logical Architecture and It’s Functional Split Options The logical architecture of gNB is shown in figure below with Central Unit (CU) and Distributed Unit (DU). Fs-C and Fs-U provide control plane and user plane connectivity over Fs interface. In this architecture, Central Unit (CU) and Distribution Unit (DU) can be defined as … Read more