Printable View
Hi, Is there anyone know about "Maximum number of supported layers for spatial multiplexing in DL" which been defined in 3GPP
According to the column, what do they mean "2 or 4"?
For instance, Does it mean UE Cat6 can have to types of UE which support 2 and 4 layer?
http://www.3gpp.org/keywords-acronyms/1612-ue-category
Thx
Good afternoon! Your drawing is not visible! Can you update it again?
Hi I cannot paste the picture, but just wonder about the column "Maximum number of supported layers for spatial multiplexing in DL" which stands for the number of mimo. Its said "2 layer or 4 layers", i dont know exactly what it means.Quote:
Originally Posted by slava121
any reference of this explanation would be highly appreciate.
Thx
This means MIMO 2x2, MIMO 4x4, respectively
It means how many "data stream" can be supported by UE.Quote:
Originally Posted by RFNuttapon
Good afternoon! Quite right
Hi, I was asking about the meaning of "2 layer or 4 layers",Quote:
Originally Posted by slava121
Does it mean this UE Cat xx can have 2 types
1.Can support only 2 layer
2.Can support 4 layer (Which can definitely support 2 layer)
????
UE cat 6 can support to maximum ~300 Mbps. It can get this value from (2 Carriers 20 MHz x 64 QAM x 2 layers) or (1 Carrier 20 MHz x 64 QAM x 4 layers).Quote:
Originally Posted by RFNuttapon
It means UE cat 6 can support 2 layers or 4 layers or both 2 layer and 4 layers.
In reality, UE capability depends much on RF band. E.g UE cat 6 has 4 layers on band 3, but it supports only 2 layers on another band.
UE CAT mainly focuses on maximum bitrate. Then there are some techs to help UE get that.Quote:
Originally Posted by linhhy