LTE maximum CA in Uplink

4G LTE
1

Hi All.

Up to now which is the maximum CA in Uplink you have seen in LTE?

I mean how much bandwidth aggregated and number of CC in Uplink?

Please also mention phone.

LTE maximum CA in Uplink
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2

It is (10M+10M) 2CC UL CA

3

Is 20 + 20 2CC UL, B7

4

I think this also i have see +1
For TDD.

5

Yes, for TDD also I saw (20+20).

6

Thanks.

This is also that is presented on CACOMBOS, not much CA in uplink is allowed and not interband just intraband.

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7

Yes, just intra band and even continuous.

8

Inter band UL CA also there.

Max BW class seen as C i.e. 2 CC CA in Uplink.

9

CLASS C would actually mean intraband!

10

Class C indicates 2 CC here.

So in Uplink CA combo like CA_40A_3A not possible?

11

Class C means intra band contiguous component carriers.

12

Thanks!

Please confirm inter band UL CA possible or not.

13

It is given in specification.

I think it’s allowed but based on band combo.

14

Ok, I think same. Thanks.

15

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3A + 40A UL CA is not supported as per specs.

16

40a-3a possible only in DL, in uplink we have 40C (20+20) and 5a-3a (10+10) in our network.

17

Thanks, so inter band UL CA there.

18

Of course it is there :slight_smile:

But you asked specific band combination, that is not supporting UL CA.

19

Here’s a nice article to understand UL and DL CA capabilities from UE capability message:

At the bottom of page is explained well UL CA.

And let me attach a UE capability from S20 ultra 5G so you can play around: :wink:

s20ultra5g-g988b-tim-uecapability.txt.zip (35.4 KB)

20

I guess UL CA is still not supported between TDD and FDD