Because 20MHz of contiguous bandwidth is achievable even without CA on few primary LTE bands so some device only recognize Digi network as LTE Cat4 network and hence 4G+ is not displayed. LTE-A or also known as 4G+ is aimed to achieve Cat6 speed. If you have a 3X CA device, it's better because you could connect to 2X CA network but when you only have 2X CA phone you could only use 2X CA and not 3X CA. 3X CA is not used in Malaysia so you don't really gain any benefit from it. Our neighbor country Singapore's SingTel had 3X CA and South Korea's SK Telecom, Korea Telecom and LG U+ had 3X CA. Hell, even SK Telecom had plan to roll out 4X CA.

so if redmi note 4 support 4g+.. it should support digi 4g+ ? But it cannot achieve the speed that my s7e can. So i'm not sure if it's on 4g+ or not..

Redmi Note 4 only support intraband CA and Digi is using interband CA.

mind to elaborate on intraband and interband? Does it have anything to do with 2xCA and 3xCA?

after some reading, intraband is one spectrum supporting 20mhz there for able to achieve 4g+. am I right?

while interband means 2xCA or 3xCA.. combing 2 spectrum to achieve 20mhz or 30mhz ..


Update : I found this in mediatek website. shouldn't it support interband?

LTE FDD/TDD R11 Cat-6 with 20+20 CA

and then also this

Single RF for LTE/WCDMA/TD/EDGE/C2K

This post has been edited by yvliew: Nov 19 2016, 08:16 PM

Let me give an simple example
Interband 20+20MHz from Band 3 and 7 each 20MHz
Intraband 20+20MHz but both must be from the same band either Band 3 or 7
Xiaomi doesn't enable interband CA to differentiate Redmi line from the flagship line.

i check wiki list of LTE..

Digi 1800 and 2600 only 10mhz on each band.. so that's why it doesn't support 4g+ as note4 doesn't do 2xCA ?

Maxis and Celcom has 20mhz on their 2600 band.

one quick question. does anyone know how quickly must we redeem the free 300mb that comes with every new prepaid?

Redmi Note 4 doesn't support Digi 4G+ as it's Digi are using Interband CA and Redmi Note 4 is Intraband CA. Interband CA phones can utilize both type of CA and Intraband only work on Intraband CA.

If you plug China Mobile sim card into Redmi Note 4, it will show up as 4G+ network because China Mobile had Intraband CA at Band 41 + Band 41.

Deleted.

This post has been edited by kroul2: Nov 19 2016, 08:49 PM

Instant redeem just dial #888#1* and accept the offer provided.

is there a time limit after which the offer is gone if not redeemed?

i'm going abroad tonight and wish to redeem it only when i'm back on wednesday.

This post has been edited by kit2: Nov 19 2016, 09:52 PM

I try to explain with picture... Hope bro zher can verify my picture
But if I understand correctly, only combined frequency more than 20mhz only will show 4G+ on some phone.

DiGi very tricky they can give everything you want today and take back tomorrow.

They never say when this promo last but if im you i redeem it as soon as i can since 300mb not that much but the lifetime 3GB Music Freedom is good.

Redeem it before DiGi change their mind..

btw, with the new spectrum allocation, would Digi be able to have more bandwidth for faster LTE-A?

rumor is they testing with 3Mhz of 900mhz spectrum....
Only 10mhz of 1800mhz been used now. i guess government forcing them to serve 2G network still

UM definitely no 2G. so they might use all (15mhz) of 1800mhz to have LTE
900mhz only got 5mhz bandwith, i check for the site survery they have use it for 3G ad

3Mhz of 900Mhz spectrum, is the going to really help if at all?

very useful for penetrate into building ah bro...

u can see this..
http://niviuk.free.fr/lte_ca_band.php

1mhz also is a standard for 3GPP

I heard Telenor in India deploy Narrow LTE Band which the Bandwidth only about 1.4 or 3MHz. The speedtest usually around 4Mbps but still sufficient for HD streaming

Yeah, you're definitely right.
BTW, I'm not an expert in this just someone who spent considerable huge amount of time into learning all these stuff.

I know, but what about the bandwidth. Accord to a video, airplane can use ATG systems to get internet connectivity but it is painfully slow at around 5mbps, this is because there is only 3Mhz slice of the spectrum. Now I know, LTE is probably gonna be more efficient in using spectrums but still, how fast could it possibly be? 10-20 is my best bet.

Found more info for the speeds of 900Mhz with 3mhz bandwidth.

https://www.vodafone.cz/en/about-vodafone/p...-czech-republi/

It says that 900Mhz can deliver speeds up to 20mbps only, with 15mbps being the average, so my bet isn't much off, but seriously, 20mbps is so little......

This post has been edited by jack2001: Nov 20 2016, 09:04 AM