carrier aggregation support - Xiaomi Redmi Note 7 Pro Questions & Answers

Does this phone support carrier aggregation?

Would like to know the answer to this as well. as far as CA is concerned only supported hardware is not enough, you need proper drivers and firmware to enable it in a device. thus my Redmi note 3 Pro (snapdragon 650) only support intra-band Carrier aggregation (same band), it does not support inter-band Carrier aggregation (multiple bands)
All the ISP in my country uses interband (Not intraband) carrier aggregation, especially 2CA B3+B7 are important to reach high speeds (over 100 Mbps)
I'm not able to find "official" info about 4G+ Carrier Aggregation of Redmi Note 7/Pro, MI9, no specs from Xiaomi side.
Is carrier aggregation (on lte which will show lte+ or 4g+ icon) only available for intra-band? or inter-band finally works too.
checking the CA state with the app: play.google.com/store/apps/details?id=com.qtrun.QuickTest&hl=en

You may check cacombos.com

lte ca not work

Related

4g+ problem

my oprator 4g+ work on band b3 & b7 but my phone just show 4g on statu bar but other phone like samsung show 4g+ on same area.my rom is 8.2.2 global stable.
is mi 5s plus suppport 4g+?
Maybe don't support
But I cannot call or receive calls only one SIM card work for call I use two operator
Irancell SIM card on slot 1 have internet and call other slot don't work internet and call then change sim card in slots HAMRAHawal can call in other slot irancell only have 4g internet and cannot call
When say problems with this phone in Miui forum manager banned me and don't help
I very very angry when saying problems and manager miui banned me why ?!!!!!!!!!!!!!!!!!!!!!!!
The xiaomi is cheating and cheaters the people of word and don't help the rubber is better than xiaomi
Pretty sure only SIM slot 1 supports 4G, slot 2 is 3G. I didn't buy it for the dual SIM stuff so I have only tested the first SIM slot and have had no problems with 4G.
As for 4G+, that is just a branding thing. 4G+ is 4G. there is no difference. The only reason that some phones put 4G+ on their status bar is just that they modified the icons in the ROM.
see - https://en.wikipedia.org/wiki/4G
If the phone says 4G, you are gettign 4G. The important quote on that page is:
Confusion has been caused by some mobile carriers who have launched products advertised as 4G but which according to some sources are pre-4G versions, commonly referred to as '3.9G', which do not follow the ITU-R defined principles for 4G standards, but today can be called 4G according to ITU-R. Vodafone NL for example, advertised LTE as '4G', while advertising now LTE Advanced as their '4G+' service which actually is (True) 4G. A common argument for branding 3.9G systems as new-generation is that they use different frequency bands from 3G technologies ; that they are based on a new radio-interface paradigm ; and that the standards are not backwards compatible with 3G, whilst some of the standards are forwards compatible with IMT-2000 compliant versions of the same standards.
4G+ is just true 4G. So if the Mi 5S Plus says 4G, you are getting 4G (or 4G+ as they are identical).
You can verify this with any LTE bandwidth monitor apps (such as signal spy) which will tell you that you are on LTE and which band you are on and you will know then that you are on 4G.
Hi mates. I'm living in Netherlands ...have problem with 4g..
My phone doesn't support band 20 ( 800 mhz )..
Is there an option to access 4g?...
Maybe flashing a custom ROM ?...
thanks
bmg002 thanks for your help.the app like signal spy does not work on my phone because of my phone is not rooted.do you know any app that i see network aggration without root?
offhand, I do not know of any non-root tools for getting any information about what network you are on.
My next best bet would be to get some bandwidth testing tool (speedtest for example) and then check what speeds you are getting out of 4G and compare that with what your provider claims you should be getting. My provider gives me 750 Mbit/s as a peak speed, and 250 Mbit/s average. If your speeds are close to that, then that is all that really matters. If it indicates 4G or 4G+ or 4G LTE or whatever indicator it says in the top, if your speeds are slower than what you are paying for, you will want to look at rooting and opening up some of the 4G channels which will likely give you better speeds.
If you still have your old phone, do a speed comparison in speedtest (or equivalent) and see if it is faster or slower on the new phone. If it is marginally slower (or faster) that can likely be ignored. If they are drastically different, then I'd look at rooting and unlocking other channels.
cultofluna said:
Hi mates. I'm living in Netherlands ...have problem with 4g..
My phone doesn't support band 20 ( 800 mhz )..
Is there an option to access 4g?...
Maybe flashing a custom ROM ?...
Click to expand...
Click to collapse
If you need to access 4G and your operator only supports band 20, then your only option is to use a different phone. From everything I've read on this forum, the hardware has been modified to not support band 20 due to licensing concerns. So a custom ROM or custom Kernel will not affect being able to use band 20. There is no way around it at this time that I am aware of.
Now, if your provider uses a band other than band 20 (or uses 20 and another band), then you can open up the other bands. There are several posts about doing that.
bmg002 said:
Pretty sure only SIM slot 1 supports 4G, slot 2 is 3G. I didn't buy it for the dual SIM stuff so I have only tested the first SIM slot and have had no problems with 4G.
As for 4G+, that is just a branding thing. 4G+ is 4G. there is no difference. The only reason that some phones put 4G+ on their status bar is just that they modified the icons in the ROM.
see - https://en.wikipedia.org/wiki/4G
If the phone says 4G, you are gettign 4G. The important quote on that page is:
Confusion has been caused by some mobile carriers who have launched products advertised as 4G but which according to some sources are pre-4G versions, commonly referred to as '3.9G', which do not follow the ITU-R defined principles for 4G standards, but today can be called 4G according to ITU-R. Vodafone NL for example, advertised LTE as '4G', while advertising now LTE Advanced as their '4G+' service which actually is (True) 4G. A common argument for branding 3.9G systems as new-generation is that they use different frequency bands from 3G technologies ; that they are based on a new radio-interface paradigm ; and that the standards are not backwards compatible with 3G, whilst some of the standards are forwards compatible with IMT-2000 compliant versions of the same standards.
4G+ is just true 4G. So if the Mi 5S Plus says 4G, you are getting 4G (or 4G+ as they are identical).
You can verify this with any LTE bandwidth monitor apps (such as signal spy) which will tell you that you are on LTE and which band you are on and you will know then that you are on 4G.
Click to expand...
Click to collapse
Everything you say is just false.
it is really easy
4G : 150MB/s max
4G+ : (phone connected to two 4G frequencies) 300MB/s max
4G++ : (three 4G frequencies) 600MB/s max
Xiaomi MI 5s is supposed to support up to three 4G frequencies at the same time BUT, in a lot of case, like here, in france, band 3 (1800Mhz) and band 7 (2600Mhz) are the two compatible 4G freq, BUT Mi5S Plus can't connect to 2 freq simultaneously and we don't really know the reason, in china it's not FDD LTE but TDD lte and it works, maybe it just doesn't work on FDD...
This is what we are asking to dev, find a way to enable dual or triple 4G freq in FDD LTE to acces high speed 4G.
I'm sure it's somthing to do with modem or kernel modification :S
Best regards
At the risk of starting a flame war, could you cite your sources on that?
I believe the speeds you quoted are wrong. Telus up here in Canada operates on 4G LTE version 8 which supports up to 750 Mbps max, but to expect average speeds around 200 Mbps (http://www.telus.com/en/sk/mobility/network/). NOTE - 750 Mbps is 93 MB/s approximately. Mind you, independant studies show that average speeds are closer to 20 Mbps for telus ().
Now, correcting my previous post - I was incorrect about our phones supporting 4G+. I misinterpreted the wikipedia article.
Looking at GSM Arena for our phone, it only supports LTE and thus not 4G+ (http://www.gsmarena.com/xiaomi_mi_5s_plus-8350.php). If you look up the galaxy S8+ for example, it supports LTE-A which would be 4G+.
We can read about LTE-A here - https://en.wikipedia.org/wiki/LTE_Advanced
and you can see which speeds different carriers offer here - https://en.wikipedia.org/wiki/List_of_LTE_networks
For example, Telus, which I am on, only recently added support for category 11 - 600 Mbps.
The 4G++ that you speak of I believe is LTE-A Pro (https://en.wikipedia.org/wiki/LTE_Advanced_Pro). But they are not referring to it as 4G++ but as 4.5G or 4.5G Pro.
Looking at this article - https://en.wikipedia.org/wiki/List_of_devices_with_LTE_Advanced#Xiaomi - it appears that our phones do not support 4G LTE-A. What is a little confusing is that the 5s does support LTE-A.
I could be mistaken, but I am pretty sure it is a hardware restriction to not support LTE-A.
baptisteba said:
Everything you say is just false.
it is really easy
4G : 150MB/s max
4G+ : (phone connected to two 4G frequencies) 300MB/s max
4G++ : (three 4G frequencies) 600MB/s max
Xiaomi MI 5s is supposed to support up to three 4G frequencies at the same time BUT, in a lot of case, like here, in france, band 3 (1800Mhz) and band 7 (2600Mhz) are the two compatible 4G freq, BUT Mi5S Plus can't connect to 2 freq simultaneously and we don't really know the reason, in china it's not FDD LTE but TDD lte and it works, maybe it just doesn't work on FDD...
This is what we are asking to dev, find a way to enable dual or triple 4G freq in FDD LTE to acces high speed 4G.
I'm sure it's somthing to do with modem or kernel modification :S
Best regards
Click to expand...
Click to collapse
bmg002 said:
At the risk of starting a flame war, could you cite your sources on that?
I believe the speeds you quoted are wrong. Telus up here in Canada operates on 4G LTE version 8 which supports up to 750 Mbps max, but to expect average speeds around 200 Mbps (http://www.telus.com/en/sk/mobility/network/). NOTE - 750 Mbps is 93 MB/s approximately. Mind you, independant studies show that average speeds are closer to 20 Mbps for telus ().
Now, correcting my previous post - I was incorrect about our phones supporting 4G+. I misinterpreted the wikipedia article.
Looking at GSM Arena for our phone, it only supports LTE and thus not 4G+ (http://www.gsmarena.com/xiaomi_mi_5s_plus-8350.php). If you look up the galaxy S8+ for example, it supports LTE-A which would be 4G+.
We can read about LTE-A here - https://en.wikipedia.org/wiki/LTE_Advanced
and you can see which speeds different carriers offer here - https://en.wikipedia.org/wiki/List_of_LTE_networks
For example, Telus, which I am on, only recently added support for category 11 - 600 Mbps.
The 4G++ that you speak of I believe is LTE-A Pro (https://en.wikipedia.org/wiki/LTE_Advanced_Pro). But they are not referring to it as 4G++ but as 4.5G or 4.5G Pro.
Looking at this article - https://en.wikipedia.org/wiki/List_of_devices_with_LTE_Advanced#Xiaomi - it appears that our phones do not support 4G LTE-A. What is a little confusing is that the 5s does support LTE-A.
I could be mistaken, but I am pretty sure it is a hardware restriction to not support LTE-A.
Click to expand...
Click to collapse
After some search, Mi5S Plus is only 4G+ intraband and not with interband 4G+
I sold mi5s plus and buy redmi 5 plus better
I don't say mi 5s plus used for 4g or4gplus
I say only my phone don't getting call
Or internet in sim1 by one operator change operator in sim1 to irancell operator only have internet cannot call or get call
The problem is from www.hamta.com must phone registered in this site in Iran for use
Hello dear u should unlock all lte band for using 4g+ in iran i tested this phone in uae and china have 4g+
How can I do it? I just installed Lineage 17 and only appear LTE. I am in Italy and with a brand new P40 Pro Huawei peak download is ~150 mbps but with mi5s plus this is the best can achive.
While Qualcom specs speak of 600mbps for the X12 modem inside the Snapdragon 821
MMyco1 said:
Hello dear u should unlock all lte band for using 4g+ in iran i tested this phone in uae and china have 4g+
Click to expand...
Click to collapse
Thanks to this thread https://forum.xda-developers.com/t/guide-how-to-unlock-bands-and-5g-on-700mhz.4114679/post-84040943 and Network Signal Guru app, I know that available bands for this phone are unlocked.
Why only poor performance on this phone? How to improve them?
baptisteba said:
After some search, Mi5S Plus is only 4G+ intraband and not with interband 4G+
Click to expand...
Click to collapse
I really don't understand why there has been so few attention in respect of this feature so central for a modern smartphone...

Seeking information about Carrier Aggregation support

Hi Guys is there any Indian guy who bought this device could you please confirm if this device support carrier aggregation in India? Specifically on Reliance Jio network. If yes it is 2CA or 3CA?
Thank you.
saifi2649 said:
Hi Guys is there any Indian guy who bought this device could you please confirm if this device support carrier aggregation in India? Specifically on Reliance Jio network. If yes it is 2CA or 3CA?
Thank you.
Click to expand...
Click to collapse
Check this link
http://www.huawei.com/en/news/2017/9/Huawei-Kirin970-Rohde-Schwarz
Hi, Along with other Cons I've listed this at https://forum.xda-developers.com/honor-view-10/how-to/prevent-buying-view10-t3740278 Pls support..
saifi2649 said:
Hi Guys is there any Indian guy who bought this device could you please confirm if this device support carrier aggregation in India? Specifically on Reliance Jio network. If yes it is 2CA or 3CA?
Thank you.
Click to expand...
Click to collapse
There is an option to enable carrier aggregation & is enabled by default.
rohitghosh said:
There is an option to enable carrier aggregation & is enabled by default.
Click to expand...
Click to collapse
Thank you for this SS
Could you please confirm if this phone supports 2CA or 3CA?
saifi2649 said:
Thank you for this SS
Could you please confirm if this phone supports 2CA or 3CA?
Click to expand...
Click to collapse
Kirin 970 processor present in the Honor View 10 is the Worlds first mobile SoC that supports Cat 18 LTE. It can attain maximum data speeds of 1.2Gbps. In contrast, Qualcomm’s Snapdragon 835, supports Category 16 downlink LTE, and can achieve maximum download speeds of 1Gbps.Tthe Kirin 970 is capable of aggregating up to 5 LTE (5CA) downlink carriers & phones equipped with this chipset will likely achieve even higher data speeds once carriers start supporting this technology. So basically it future proof. Even the OnePlus 5T supports only upto 3CA.
CA related question
Is there any tool, app, code to see between which 4G bands the device is "making" the CA?
rohitghosh said:
There is an option to enable carrier aggregation & is enabled by default.
Click to expand...
Click to collapse
The carrier aggregation option is missing from my phone, lol - B140 C432 (Europe). My OnePlus 5 had LTE-A all the time (the 4G support on my mobile provider is on 1800 and 2100 bands). Since I got the View 10, I have not seen the LTE-A sign not even once, always stuck on 4G only. A friend of mine has Mate 10 Pro and he gets LTE-A. Same mobile provider, same chipset.
qtoo941 said:
The carrier aggregation option is missing from my phone, lol - B140 C432 (Europe). My OnePlus 5 had LTE-A all the time (the 4G support on my mobile provider is on 1800 and 2100 bands). Since I got the View 10, I have not seen the LTE-A sign not even once, always stuck on 4G only. A friend of mine has Mate 10 Pro and he gets LTE-A. Same mobile provider, same chipset.
Click to expand...
Click to collapse
I'm in America..
And it says 4g on mine all the time
But when I check the signal I get lte band 5.. And others depending on what towers I use it the area I'm in
I think maybe the indicator is inaccurate but still received lte.
Down load lte Discovery app from play.
It will tell you all the info you need.
Also depending on what theme I use the indicator will work and show lte.
Just eye candy.. It works.

LTE Carrier Aggregation / Bands Info?

I'm not able to find "official" info beyond LTE Cat 12/​7 about LTE Carrier Aggregation / Bands Support of RN6P.
Especially interested in the Central European situation, as far as I found 3CA (B3+B20+B7+B1) and 2CA (B3+B20/B7, B1+B20) are important to reach high speeds (over 100 Mbps). Other Bands of interest: B32.
Why no Shops and Smartphone tests listen this data which can decide if double or triple speed is possible?
EDIT: According to gadgetsnow.com there is support only for: 1, 3, 5, 40, 41 - so B20 and B7 as well as B32 is missing.
Still found no info on CA (2CA or 3CA); it seems unsupported?
ChriMo said:
I'm not able to find "official" info beyond LTE Cat 12/​7 about LTE Carrier Aggregation / Bands Support of RN6P.
Especially interested in the Central European situation, as far as I found 3CA (B3+B20+B7+B1) and 2CA (B3+B20/B7, B1+B20) are important to reach high speeds (over 100 Mbps). Other Bands of interest: B32.
Why no Shops and Smartphone tests listen this data which can decide if double or triple speed is possible?
EDIT: According to gadgetsnow.com there is support only for: 1, 3, 5, 40, 41 - so B20 and B7 as well as B32 is missing.
Still found no info on CA (2CA or 3CA); it seems unsupported?
Click to expand...
Click to collapse
I'm also looking for this CA information but no specs from Xiaomi side.
Note: The answer is 3CA since RN6 has Snapdragon 636 (with X12 modem build in),
fbirraque said:
The answer is 3CA since RN6 has Snapdragon 636 (with X12 modem build in),
Click to expand...
Click to collapse
Very interesting info and link. So 3CA Downlink and 2CA Uplink. The X12 LTE Modem page also lists a lot more interesting specs like:
LTE Category 13 (uplink) 12 (downlink), Download 600 Mbps Upload 150 Mbps
Click to expand...
Click to collapse
Unclear to me is if any of this hardware options are usable on devices having the modem installed - or in other words how much device/vendor drivers impact usage of the full hardware potential. Also wondering if Snapdragon 821/820/66x devices so in theory have the same LTE performance?
Xiaomi may not implement every feature as Qualcomm could offer. There is way to confirm CA combinations support from modem log. I have instruction here how to get log out: https://mt-tech.fi/en/how-to-get-4g-supported-ca-combinations-from-your-android-phone/ (scroll down Xiaomi section). Then please send your phone log here https://cacombos.com/contribute so then you can see your device in cacombos.com page with supported bands and combos.
olkitu said:
Xiaomi may not implement every feature as Qualcomm could offer. There is way to confirm CA combinations support from modem log. I have instruction here how to get log out: https://mt-tech.fi/en/how-to-get-4g-supported-ca-combinations-from-your-android-phone/ (scroll down Xiaomi section). Then please send your phone log here https://cacombos.com/contribute so then you can see your device in cacombos.com page with supported bands and combos.
Click to expand...
Click to collapse
Redmi Note 6 Pro support 2CA Contiguous intra-band Carrier Aggregation combinations: https://cacombos.com/device?model=M1806E7TG . LTE Category is CAT13 DL and CAT13 UL. Max speed DL theory up to 400 Mbit/s and upload max 150 Mbit/s.

Does the motorola one Vision (india) support inter-band carrier aggregation?

Does the motorola one Vision (india) have support for inter-band carrier aggregation? Or only Intra-band? The phone is sold with specifications of Cat6 (300/50 mbps) with 2CA (2x carrier aggregation). However, i can't find any info on whether this 2CA is both for intra and inter band CA or just intraband carrier aggregation. Also, I would like to know what 4G band combos are supported by this phone. Any idea regarding this would be of immense help. There is no info regarding CA of moto one vision in the websites cacombos or smartphonecombo

Question US version works in India?

Thinking of importing the Pixel 7 Pro from the US to India since India doesn't have a 256GB or 512GB version.
Will I be able to use dual sim in India with VoLTE?
And will I get 5G to work in India?
Please help!
No
superspartan said:
No
Click to expand...
Click to collapse
So VoLTE and 5G won't work and neither will dual sim?
Will installing the Indian ROM work?
According to youtube link, it may work but u need to buy unlock phone only and it should be bought with full payment with no emis
And regarding warranty only Google support would answer best.
5g update will be included in December with feature update
The model sold in India is GP4BC, and the one in the US is GE2AE. The main difference is the radio bands, but I believe it should work fine.
For example, the GP4BC model supports LTE band 32, but GE2AE does not. However, from what I see, LTE band 32 isn't used in India. In any case, carriers support multiple LTE bands, so you should be fine for LTE coverage with the US model GE2AE.
For 5G, GP4BC supports two additional sub-6 bands (75 & 76). From what I see online, these 5G sub-6 bands aren't used by any carriers in India as well, so 5G sub-6 should also work fine if you buy the US GE2AE model.
craigacgomez said:
The model sold in India is GP4BC, and the one in the US is GE2AE. The main difference is the radio bands, but I believe it should work fine.
For example, the GP4BC model supports LTE band 32, but GE2AE does not. However, from what I see, LTE band 32 isn't used in India. In any case, carriers support multiple LTA bands, so you should be fine for LTE coverage with the US model GE2AE.
For 5G, GP4BC supports two additional sub-6 bands (75 & 76). From what I see online, these 5G sub-6 bands aren't used by any carriers in India as well, so 5G sub-6 should also work fine if you buy the US GE2AE model.
Click to expand...
Click to collapse
Thanks a lot for the detailed workup. Giving my friend the go ahead to get it for me then.

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