5G的進展

ovum的研討會

两大机会

Asia .. 2020 olympics in Japan, enterprise market in China 

US... fixed wireless broadband (FWA) for AT&T or Verizon. Tmobile uses 600MHz band to support coverage. Sprint uses  2.5GHz for MIMO to support LTE.

看來5G只是補4G或固网、並没新東西

Hongkong, US and some European countries have awarded the 5G licenses.

3.5 GHz is the most common initial band, 28GHz is also adopted by some like US and South Korea.

三種主要应用

1. enhanced mobile broadband or fixed wireless access 10Gbps ex eMBB and FWA 比較可行, 但限於少数市場或沒新收入

2. ultra reliable low latency communications 1ms在交通或製造領或_但很有挑战

3. massive machine type communications IoT 看來在2022前不会用5G、用現有NBIoT即可

所以business models are not well justified to deploy 5G

5G主要挑战及技术考量

在2019  WRTC 19前官方不会決定标准頻段

三種侯用頻段

低、用在IoT、不能用M1MO

中、用MlMO

高、用在家中寬頻

网路架构

在2020后才有独立5G核网

短期 5G依附在LTE的核网內、有5G  RAN& UE

未來LTE存在

LTE-A Pro会發展、可能变成5G

5G也会发展5G NR new radio 來取代LTE-A Pro

5G NR

standalone not standardized, perhaps mid Y18

non standalone version standard is complete in end of Y17, discussion in 3GPP release 14, feed in release 15

The rel. 15 is to be complete by Y18 end

5G core standard is to be complete by Y19 end

5G network will take "slicing" approach

5G may use multiple access edge computing, MEC

這想法很棒、但很多挑战、ex标准、成本、後台、使用者

MEC现在用4G在試 

AWS greengrass is the commercial application

許多业者推动5G

5G open trial spec alliance(含Verizon, docomo, sk telecom and Korea Telecom )

AT&T

Ericsson

China lead.. IMT 2020, 

ITU-R

korea based 5G forum

EU lead 5G PPP

Japan lead 5GMF 

主要供应商

Ericsson

Nokia 併了 Alctel Lucent

Samsung

Huawei

ZTE

Qualcomm

总之、若只是速度变快、而没什应用、則5G沒什用

ovum估計Y2022, 5G的行动用戶微不足道、较明顯的、

那時全球FWA大概不到4.3 millions of subscribers