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Title:
無線基地局及びユーザ装置、並びにそれらにおける方法
Document Type and Number:
Japanese Patent JP5808757
Kind Code:
B2
Abstract:
Embodiments herein relate to a method in a user equipment (10) for transmitting uplink control information in time slots in a subframe over a radio channel to a radio base station. The radio channel is arranged to carry uplink control information and the user equipment and radio base station are comprised in a radio communications network. The uplink control information is comprised in a block of bits. The user equipment maps the block of bits to a sequence of complex valued modulation symbols. The user equipment also block spreads the sequence of complex valued modulation symbols across Discrete Fourier Transform Spread - Orthogonal Frequency Division Multiplexing (DFTS-OFDM) symbols. This is performed by applying a spreading sequence to the sequence of complex valued modulation symbols, to achieve a block spread sequence of complex valued modulation symbols. The user equipment further transforms the block-spread sequence of complex valued modulation symbols per DFTS-OFDM symbol. This is performed by applying a matrix that depends on a DFTS-OFDM symbol index and/or slot index to the block-spread sequence of complex valued modulation symbols. The user equipment also transmits the block spread sequence of complex valued modulation symbols that has been transformed over the radio channel to the radio base station.

Inventors:
Valdemeyer, Robert
Astery, david
Geestenberger, Dirk
Larsson, daniel
Parc Val, Stephan
Application Number:
JP2012548919A
Publication Date:
November 10, 2015
Filing Date:
January 18, 2011
Export Citation:
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Assignee:
Telefon Akti Bora Get Elm Ericson (Pubble)
International Classes:
H04J11/00; H04J13/22; H04L27/01
Domestic Patent References:
JP2008508803A
JP2009302614A
Foreign References:
WO2009131345A1
US20090022135
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama