XL LTE MIMO V1

HUAWEI TECHNOLOGIES CO., LTD.

TM, RANK, Codeword RANK: independent channel in space. TM (Transmission mode): downlink signal transmit mode that include transmit diversity M!M" #eam$orming. %odeword: data #lock a&er coding upper'layer data. %odeword and codeword.

OFDM:"rthogonal *re+uency ,ivision Mul-pleing

Factors related to TM3_Rank2 ratio (Spatial Multiplexin ! *actors related to Rank/ ra-o (0pa-al Mul-pleing )

1arameter con2gura-on

%overage

Alarm and Tunnel

"ther

•

TRMode

•

Alarm related antenna

•

0!NR

•

Test Method

•

%ellM!M"1ARA%*3

•

45 antenna un#alance

•

TR repeater

•

*re+uency 6"

•

Antenna issue

•

45 category

•

channel correla-on

TxRxMode:TR7T/R7/T/R7/T8R78T8R CellMIMOPARACFG: M", %599M!M"1ARA%*3: 9ocal%ell!d;;; MimoAdap-ve0witchN" !ni-alMimoTypeA,A1T!=5? SINR: 9ower 0!NR 9ower TM> Test Method: ,edicate Mode Frequency HO efect: More 6" 9ower TM>

T" #$an%2 $atio Guideline &o' DT 3uideline: . M!M" Test at ,edicate mode. /. 5port the M!M" distri#ute using ,edicate Mode.

 T" #$an%2 $atio Guideline &o' N"S

 8

RANK2_Rati o )*+

Antenna $elated Ala';0 =SW$, /4annel Un3alan/e,

N

 8

CI-

 8

A/tion Plan 0 1. Clea' t4e Ala';

N

A/tion Plan 0 1. $9 O:ti;i

TM8

Bithout ,iversity or Mul-pleing gain %ell 5dge 6igh !nter$erence6igh 0peed

3ood 0!NR6igh 0peed

"pen'loop 0pa-al Mul-pleing

M!M"

Transmit ,iversity

M!M"

%losed'9oop 0pa-al Mul-pleing

Re"!r#

3ood 0!NRlow 0peed M!M"

0pa-al mul-pleing gain can i mprove throughput that include "pen'loop and %losed'loop spa-al mul-pleing scheme. ,iversity gain can improve the relia#ility average gain is > d@ and reduc-on o$ 0NR uctua-on o$ R; signals in channel $ading.

FTU2*** De/la'e 适用场景与修订说明

返回

 !ort R"c"i#" !o$"r

 !ort S"n% &o$"r

FT $SSI Sta 适用场景与修订说明 De/la'e

返回

8T %ell

/T %ell

MIMO RRU/MRFU Scenario

Use this command to detect a crossed feeder connection. Crossed feeder connection is a wiring error in twisted air ca!"ing where !oth the main and di#ersit$ in a sector are incorrect"$ connected to different antennas at !oth sides.

RR*3+&' -i. /riorit01&44 5T5R

$ %!nd Antenn! &'()*+)(*,-'&.&*+/()*

APM0*

RR4 >C>F /T/R

UPEU/ 9AN/

WP UPd UPd

U"PT31

UPEU/

RR4 >CD/m /T8R

RR4 >CE 8T8R

MRF*' ow /riorit01&44 2T6R, *2&44 2T5R

/   B )   (   R   (   *   4

 (   C   M  (   R   (   *   7   )   4  F   ( 

UPEU/ 9AN/

GT"U WP&! UPd

U"PT31

UPEU/

AA*' ow /riorit01&44 2T6R, *2&44 2T5R

AA4>C FAG/A

APM0* RR2 0)03 G)**

UPEU/

1 4/

9AN/

1 9F

UPd UPd

U"PT31

UPEU/

Outdoor : BTS3900A Site Solution

 An%&nna 900' 1!00'#100

RRU391 1!00M RRU39"#$ #100M Grounding Bar

Grounding Bar   Grounding Bar 

Grounding Bar 

 APM30-0

G O 9 0 0 M

G O 9 0 0 M

G O 9 0 0 M

RFC-0-0

FANc

UBRIb UBBPd6 UBBPd6

UEIU UMPTb1

UPEUc

BBU3900-0