F
Fredrik Ovesjö
Researcher at Ericsson
Publications - 45
Citations - 970
Fredrik Ovesjö is an academic researcher from Ericsson. The author has contributed to research in topics: Wireless & Antenna (radio). The author has an hindex of 15, co-authored 45 publications receiving 970 citations.
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Patent
Antenna array calibration
TL;DR: In this paper, a method and a system for calibrating the reception and transmission of an antenna array for use in a cellular communication system is described, where the calibration of the antenna array is performed by injecting a single calibration signal into each of a number of receiving antenna sections, in parallel.
Patent
Commanding handover between differing radio access technologies
TL;DR: In this article, a radio access technology handover message includes a first information element representative of a first parameter from which a value of a second parameter can be derived so that the second parameter need not be included as a separate information element in the radio access protocol handoff message.
Patent
Channelization code allocation for radio communication systems
Fredrik Ovesjö,Erik Dahlman +1 more
TL;DR: In this paper, variable spreading factors and multi-code transmissions are flexibly accommodated by assigning spreading codes in accordance with the described techniques, so that the control channel is orthogonal to all physical channels in the composite spread spectrum signal.
Patent
Extended System Information Distribution Mechanisms
TL;DR: In this article, the authors have proposed a method to transmit system information to a plurality of wireless terminals in a wireless communication network, where the network node transmits a first group of system information blocks (SIBs) via a first physical channel, and transmits another group of additional SIBs via a different, second physical channel.
Patent
Transport format combination indicator mapping for telecommunications
TL;DR: In this article, a calculated transport format combination (CTFC) is proposed to provide efficient signalling of transport format combinations to be assigned TFCI values, where a sequence of CTFCs is signalled from higher layers (30) to Node B (22) and the user equipment (UE) (20).