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Uplink quality poor

Parsa48 - 24th July 2017  (02:28 GMT)

I have a lot uplink rx quality in 3G ran Ericsson please someone guide me to solve this problem

opti_baby - 29th April 2017  (15:06 GMT)

as usual, if that is FDD system, uplink interference cause the problem, use a full band scanner to check the whole band's floor noise (uplink), if that is a TDD system (LTE), you may use the time slot scanning funtion to scan all the symbol and RE.

LEMAURE - 18th March 2017  (07:17 GMT)

check BADICM stats and UL RXLEV distribution.
you might be facing HW issues, interferences or coverage issues)

Yann3112 - 1st March 2017  (09:46 GMT)

Uplink quality is too bad.How to fix it??

Eng Solomon - 7th December 2013  (09:19 GMT)

In the UP link, UE Sends MSGs to Node B, which is capable of Detecting the UE for paging/Signaling puposes. However, the problem arises if hardware is Not functioning well, i.e TRXs or Combiner/Duplexer, Also check that the power is surficient enough in the system...BADICM(Cause effect) can also be one though brought by the Power incerficiency.

I hope that will help. thanks.

mm - 21st February 2012  (08:56 GMT)

IN FOUR OF MY BSCs THE TCH BLOCKING % ARE AS UNDER -
BSC1-9.95%
BSC2-1.72%
BSC3-12.57%
BSC4-20.60%
CAN THERE BE ANY PARTICULAR REASON AT THE BSC LEVEL FOR THIS HIGH TCH BLOCKING RATE ??
WILL ANYONE HELP PLEASE ?
Mr.PIX,PLEASE EXPLAIN

mannu - 20th February 2012  (08:22 GMT)

Dear Pix,

I am also facing the same problem uplink quality is very bad but downlink quality is good i am working on ALU bts.

Ranjan - 9th October 2007  (16:05 GMT)

How can we check the path balance in ericsson systems?

Tomar - 20th August 2007  (09:46 GMT)

Hi Ajay,
check UL Idle band Interference meas. If it is posible on each TRX.

The 3. case could be also disturbance from other sources. We have problem on the cell, which cover jail.

BR
Tomar

pix - 19th August 2007  (12:06 GMT)

have you checked the path balance of the cell ? (=low ul level and good dl level)

i can see two possible reasons for a poor ul quality :
1. problem in the hardware, and especially in the TRE or the combiner/duplexer
2. ul interference coming from another cell

you can try to isolate the cause by checking the UL quality TRX per TRX, and by changing the frequencies.

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