Home LTE NB-IoT 5G(NR-NSA) DSS: Other NR UE features that are considered important for an efficient operation of spectrum sharing are: PDCCH in symbol 2 Rate matching pattern to map around LTE PSS/SSS and PBCH TRS in symbol 6 and 10 Flexible CSI-RS placement Alternative PDSCH DM-RS pattern when LTE CRS rate matching is configured 7.5 kHz UL shift DSS will help a mobile operator to flexibly allocate existing spectrum across low-, mid- and high- frequency bands, by dynamically switching between 4G LTE and 5G NR coverage based on traffic demand.Mobile operators can hold DSS to deliver the best possible performance and coverage for a mix of 4G and 5G devices. How LTE overhead can be avoided? 5G capacity is impacted by LTE Cell Reference Signals (CRSs),PDCCH, PSS, SSS, PBCH and MBSFN subframe...
Hello team, i would like to write the article about Block chain. please help me to publish it.
ReplyDeletePlease share your Article on aarya.pinal At gmail.com
DeleteUltra IoT C-SGN Overview
ReplyDeleteThe Ultra IoT C-SGN (CIoT Serving Gateway Node) is a combined node EPC implementation option that minimizes the number of physical entities by collocating EPS entities in the control plane and user plane paths. C-SGN combines the MME, P-GW and S-GW functions to provide a highly optimized CIoT solution.
The Ultra IoT C-SGN runs on virtualized environments to support Cellular IoT (CIoT) traffic. The CIoT EPS Optimizations in this release provide improved support of small data transfer.
The topics in this chapter include:
Overview of IoT
CIoT EPS Optimizations
Overview of IoT
The Internet of Things (IoT) is a computing concept where everyday objects have internet connectivity and they can collect and exchange data. The IoT network comprises of a wide variety of physical devices, vehicles, buildings, and any other devices or objects used in our daily lives. IoT is expected to bring a revolution of tremendous growth opportunities by bringing millions of new set of devices, applications and new set of enablement of protocols/technologies into the network.
The IoT devices use MTC (Machine Type Communication). The key objective is to provide solutions to support high efficient handling of tracking devices using small data transmissions for ultra-low complexity, power constrained, and low data-rate IoT devices, called CIoT devices. The main requirements for IoT devices is EPS optimization for small data transfer.
NarrowBand IoT (NB-IoT) is a narrowband radio technology that is optimized for IoT in 3GPP Release 13. Optimizations on the core network are applicable to both NB-IoT RAT and EUTRAN RAT (for eMTC / LTE-M devices).
CIoT Overview
Platform Requirements
Licensing Requirements
Standards Compliance
CIoT Overview
Cellular Internet of Things (CIoT) technology is an important branch of IoT. The CIoT devices use small data transmissions for ultra-low complexity as they also use low data-rates and have power constraints. While the number of CIoT devices in the network might increase exponentially, the data size per device remains small.
The following enhancements are required to support CIoT devices:
Minimize system signaling load over the radio interface
Provide adequate security to the EPS system
Improve battery life of the devices
Support delivery of IP data
Support delivery of non-IP data
Support of SMS
Extended coverage
Low cost
The EPS optimized for CIoT supports different traffic patterns as compared to normal UEs and supports only a sub-set and necessary functionalities as compared with the existing EPS core network, in a single logical entity known as the CIoT Serving Gateway Node (C-SGN). The C-SGN is a new node specified for optimizations that consolidates functions from control plane node (MME) and user plane nodes (S-GW, P-GW, and SAE-GW).