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Dive into the research topics where Christer Östberg is active.

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Featured researches published by Christer Östberg.


international solid-state circuits conference | 2014

10.8 A multi-standard 2G/3G/4G Cellular modem supporting carrier aggregation in 28nm CMOS

Michael Breschel; Peter Almers; Fredrik Angsmark; Alberth Arvidsson; Harald Bauer; Kees van Berkel; Joaquin Canovas; Minh Do; Anders Ekelund; Torsten Larsson; Bo Lincoln; Magnus Malmberg; Masao Naruse; Masashi Onishi; Christer Östberg; Jean-Paul Smeets; Mario Vergara Escobar; Juergen Voelkl; Emma Wittenmark

Mobile networks today are divided into multiple radio access technologies (RATs) scattered over a variety of frequencies and functionality depending on the network region. The scattered networks require that the digital baseband for mobile user equipment handle multiple RATs, multiple bands, as well as seamlessly transition between these. In 3GPP release 10 [1] the problem with scattered frequency bands has been addressed by the possibility to aggregate spectrum from two separated carriers to create a wider aggregated total bandwidth. Which carriers to combine depends on the spectrum available to the specific operator.


Archive | 2004

Method for synchronization in a mobile radio terminal

Torgny Palenius; Johan Hokfelt; Christer Östberg; Jan Wichert; Mikael Nilsson; Richard Ewald; Patrik Olofsson; Håkan Palm


Archive | 1998

Method, apparatus, and system for fast base synchronization and sector identification

Christer Östberg; Fredrik Jaenecke; Yi-Pin Eric Wang


Archive | 2003

Mobile terminals and methods for performing fast initial frequency scans and cell searches

Christer Östberg; Hans Stattin; Bengt Lindoff


Archive | 2004

Method and apparatus for wireless intersystem handover

Torgny Palenius; Johan Hokfelt; Christer Östberg; Jan Wichert; Mikael Nilsson; Richard Ewald; Patrik Olofsson; Håkan Palm


Archive | 1999

Motion estimator for a CDMA mobile station

Roozbeh Atarius; Torsten Carlsson; Hakan Eriksson; Kjell Gustafsson; Torgny Palenius; Christer Östberg


Archive | 1998

Method and apparatus for identifying the source of a digital signal

Roozbeh Atarius; Christer Östberg; Hakan Eriksson; Håkan Henningsson


Archive | 2001

Method and apparatus for classifying interference

Johan Nilsson; Christer Östberg; Hakan Eriksson


Archive | 1999

Approximated MMSE-based channel estimator in a mobile communication system

Christer Östberg; Bengt Lindoff


Archive | 2011

Cell reselection for multiple sim devices

Christer Östberg; Samuel Lamazure

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