# Jonathan Notes #4

Main reference: [5G-era Mobile Network Cost Evolution](https://www.brighttalk.com/webcast/16515/349887?utm_source=brighttalk-portal&utm_medium=web&utm_content=Parallel Wireless&utm_campaign=webcasts-search-results-feed)
Deadline: 26th April 2020

###### tags: `ET6207701`

## 5G Spectrum
Coverage Layer: wide area and deep indoor coverage
Capacity Layer: wide area but no deep coverage
High Throughput Layers: addressing specific use case, extremely high data rates.


### Singapore's Spectrum plans
2020 -> 26/28 GHz, MMWave: HigH Throughput Layer
2021 -> 700 MHz, Coverage Layer
2022 -> 3.5 GHz, Capacity Layer. IoT mMTC Deployement(?)


:::info
I highlight this part, because Indonesia probably follow Singapore because of location and influence.
Currently Indonesia has not discuss about the spectruum yet.
:::

### Notes on 5G MMWave
- large bandwidths but the cell sizes would be small
- 600.000 5G cell +- 100m radius for 5G coverage


## Small cell or macro cell

## 5G NR
- very low bands: 0.4 - 100 GHz
- ultra wide bandwidth: uptp 100Mhz in <6GHz, upto 400 MHz in >6Ghz
- different numerology
- forward compability
- new channel coding: LPDC (data channel) and Polar coding (Control)
- Flexible and Modular RAN architecture
- Network Slicing

Carrier Bandwidth Part is a contiguous set of physical resource blocks,selected from a contiguous subset of the common resource blocks for a given numerology(u) on a given carrier.


A UE can be configured with up to 4 BWPs in the downlink and with up to 4 BWPs in the uplink with a single downlink bandwidth part being active at a given time.

## MIMO in 5G


## Use case
5G use case devided into 3: eMBB, mMTC, and uRLLC.
| Capability | Description | 5G requirement | Usage scenario |
|--------------------------------------------- |------------------------------------------------------------------------------- |---------------------- |---------------------- |
| Downlink peak data rate | Minimum maximum data rate technology must support | 20 Gbit/s | eMBB |
| Uplink peak data rate | | 10 Gbit/s | eMBB |
| User experienced downlink data rate | Data rate in dense urban test environment 95% of time | 100 Mbit/s | eMBB |
| User experienced uplink data rate | | 50 Mbit/s | eMBB |
| Latency | Radio network contribution to packet travel time | 4 ms | eMBB |
| | | 1 ms | URLLC |
| Mobility | Maximum speed for handoff and QoS requirements | 500 km/h | eMBB/URLLC |
| Connection density | Total number of devices per unit area | 106/km2 | mMTC |
| Energy efficiency | Data sent/received per unit energy consumption (by device or network) | Equal to 4G | eMBB |
| Area traffic capacity | Total traffic across coverage area | 10 Mbps/m2 | eMBB |
| Peak downlink spectrum efficiency | Throughput per unit wireless bandwidth and per network cell | 30 bit/s/Hz | eMBB |

eMBB focused on High Data Rates
MMTC focused on High Density since it need a lot of device deployment
uRLLC focused on UltraReliability & Low Latency

### How to achieve 5G