wcdma Google Group

How does the UE calculate SFN?

2009-11-20T11:26:32Z

The UE uses P-SCH and S-SCH to know the slot boundary, frame bounday
and the scrambling code group of a cell. By trying out, different
scrambling codes in that group, it is able to find the scrambling code
to listen to CPICH as well as PCCPCH. Now on PCCPCH, the MIB is sent
every 8 frames. So the UE knows when SFN mod 8 is 0, there is a MIB

Multiples of UMTS openings at Bangalore

2009-03-29T10:45:41Z

I am looking for multiples of UMTS experienced personnel with the
following distributions for a leading Global Mobile application
Product development companies - Captive center at Bangalore.

• GSM/GPRS RLC, MAC, LLC LAPDm, SNDCP knowledge bonus
• GSM RR knowledge (Experience in dual mode stack is a bonus)

MIMO on WCDMA

2009-03-19T05:00:34Z

Hi all,
This is a query regarding the MIMO transmission in WCDMA downlink. The
release 6 standard has transmit diversity scheme on the downlink. i.e two
antenna at base-station. In that scenario. Does the BS indicate the presence
of STTD transmission to all the users ?? Because there is a kind of
interference which the SISO users will face.

Re: Why different access schemes for uplink and downlink?

2009-01-23T15:40:33Z

Hi Ashwini,

See a previous post.. Book on LTE and WCDMA by Holma is a good one to
begin..

Also recently book on HSDPA and LTE was published by Erik.

regards,
ssk

On Jan 23, 4:59 pm, "ashwinispatan...@gmail.com"

Re: Why different access schemes for uplink and downlink?

2009-01-23T11:59:28Z

Dear SSK,

Thanks for the answer. Can you tell me the name of some good books as
there are for GSM (Wilkies and Garg) and CDMA (Garg) for UMTS and LTE.

Thanks and Regards
Ashwini

Re: Why different access schemes for uplink and downlink?

2009-01-22T09:51:26Z

Hi Ashwini,

Firstly, WCDMA and LTE are different.
* WCDMA is has same access scheme i.e both we have DS-CDMA based
multiple access

LTE has derived the HSPDA technology from Release 7 and from Release
8 of 3gpp, the PHYSICAL layer mapping has been changed to avoid
multiuser-interference at high data rate transmission.

Why different access schemes for uplink and downlink?

2009-01-22T07:32:45Z

Hi Every One,

I am confused regarding these different access schemes for up link
and
downlink or more precisely different access schemes in forward and
reverse channel of UMTS / LTE(you can generalise my question).

As far as I am getting, say we use OFDMA for downlink (Base Station
to
Mobile Terminal) and SC-FDMA (Mobile Terminal to Base Station), the

Propagation Delay in UTRAN Cell

2008-06-25T14:32:15Z

Dear All;
Do any one know how to measure the propagation delay in UTARN cell in
Ericsson System ? ( I mean by which counter name)
Rgd
Khaled

HSDPA and LTE Book available

2008-06-12T11:21:55Z

Hi all,

Those who are new to WCDMA or HSDPA, the softcopy of the well known
book by "Holma" on WCDMA is available on gigapedia.org, In case if you
are not able to download. I can help uploading or mailing to this
group.

regards
wirelessman

Please help me in FYP

2007-05-13T07:37:57Z

Dear all,
i have got my final year project on Handsoff in UMTS and i have to
simulate it in opnet(i dnt know exact name) of this software but still
i have to complete it in 2 months.
anyone can help me regarding this that how should i start it and also
please comment on my project.
Regards
Jay

Multiple openings Exp/Fresher

2007-05-11T07:12:10Z

Hi Friends,
We have requirements for the following testing professionals in our
company, send your resumes mentioning Jobcode/Experience in the
subject to the following address
harismano...@gmail.com
1. Job Code: EJD_31 NMS Testers
Location : Bangalore
Testing :
a) 2-6 yrs of testing experience in telecom domain

UMTS Book

2007-02-09T16:26:23Z

Hi Folks
I am looking after the following book (electronic version if possible)
Title: Umts Design Details and System Engineering
By: Gert Bostelmann
Any idea please, Besides Amazon becoz they have no shippement options
to my country,
than k you.

HSDPA CQI

2007-02-09T04:26:23Z

Hi,
I have a query regarding the CQI fed back to the base-station from the
mobile for HSDPA. Say there are N users in the cell and U<N users are
connected to the HSDPA service. We know that the base-station does not
transmit packets to all the U users every time but schedules/selects
the U'<=U users according to the CQI feedback. My question is do all

CQI / HSDPA

2006-12-15T03:54:48Z

Hi,
Does someone know the formula to converty received Ec/Io or RSCP into
CQI number (0...30) for reporting back to the BS ?

Re: RACH congestion/access slots

2006-12-15T03:51:19Z

Hi All,
Thanks Venkat.
But what happens when multiple UEs use the same TTI to initiate the
call. I know it wokrs as slotted ALOHA. What if 16 UEs try to set up
RRC connection at the same time ?
Rgs
Vishal