NDLI: UMTS900 Co-Existence with GSM900

Content Provider	IEEE Xplore Digital Library
Author	Holma, H. Ahonpaa, T. Prieur, E.
Copyright Year	2007
Description	Author affiliation: Nokia Networks (Holma, H.; Ahonpaa, T.)
Abstract	UMTS was initially deployed in Europe and in Asia using new spectrum at around 2 GHz. The deployment at 2 GHz frequency requires fairly high site density making it challenging to match existing GSM900 coverage with the same sites. Now also UMTS can take benefit of the better signal propagation at 900 MHz since 3GPP has defined UMTS specifications for 900 MHz and UMTS900 products are entering the market during 2007. The target of UMTS900 is to bring UMTS coverage to new areas with less base station sites and to improve the indoor coverage in the existing UMTS coverage area. This paper shows that UMTS900 can reduce the required number of base station sites by 60% and improve the indoor data rates by more than 50% compared to UMTS2100. When UMTS900 is deployed with co-sited GSM900, the required spectrum for UMTS carrier is 4.2 MHz or equivalently 21 GSM carriers. This 4.2 MHz spectrum corresponds to the carrier spacing of 2.2 MHz between UMTS carrier and closest GSM carrier. The feasibility of 2.2-MHz carrier spacing is verified by GSM power level measurements in a live network combined with the commercial UMTS base station blocking measurements.
Starting Page	778
Ending Page	782
File Size	374520
Page Count	5
File Format	PDF
ISBN	1424402662
ISSN	15502252
DOI	10.1109/VETECS.2007.170
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-22
Publisher Place	Ireland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	3G mobile communication Frequency GSM Base stations Asia Power measurement Attenuation Europe Level measurement Antenna feeds
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in