F
Fredrik Berggren
Researcher at Huawei
Publications - 82
Citations - 1019
Fredrik Berggren is an academic researcher from Huawei. The author has contributed to research in topics: Signal & Telecommunications link. The author has an hindex of 16, co-authored 78 publications receiving 952 citations.
Papers
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Journal ArticleDOI
N-continuous OFDM
J. van de Beek,Fredrik Berggren +1 more
TL;DR: A new OFDM signalling format characterized by a precoder that renders the emitted signal's phase and amplitude continuous achieves superior out-of- band power characteristics at the price of a slightly reduced receiver sensitivity.
Journal ArticleDOI
Out-of-Band Power Suppression in OFDM
J. van de Beek,Fredrik Berggren +1 more
TL;DR: Judicious modulation of non-data subcarriers renders a transmitted OFDM signal and a few of its higher-order derivatives continuous at the OFDM symbol boundaries, which results in reduced out-of-band emission.
Patent
Methods and nodes in a wireless communication system
Fredrik Berggren,Jianghua Liu +1 more
TL;DR: In this paper, the uplink control channel resources for providing HARQ feedback for data transmitted on a downlink data channel associated with the downlink control channel are assigned. But the uplINK channel resources are configurable over a subset of available time frequency resources.
Proceedings ArticleDOI
Primary Synchronization Signal in E-UTRA
TL;DR: By designing the signal to be centrally symmetric in the time-domain, the symmetric samples can be added prior to multiplication with the replica sample, thereby saving one multiplication per two received samples.
Proceedings ArticleDOI
EVM-Constrained OFDM Precoding for Reduction of Out-of-Band Emission
TL;DR: This contribution addresses the potential of N-continuous OFDM signals in systems where the receiver is unaware of the transmitter precoder operation.