Nokia Siemens Networks Gmbh & Co Kg

Yan Gao

Hui Li

Thomas Haustein

Wolfgang Zirwas

Egon Schulz

Dan Yu

Rüdiger Halfmann

Josef Martin Eichinger

Bernard Raaf

Qikai Zhang

A method for radio communication between a device and radio stations of a radio communications system having a plurality of radio stations involves transmitting messages from the transmitting radio station to the receiving radio station either directly, or via a routing the passes through one or more radio stations that forward said messages. The device transmits information, which related to one or more routings between a respective transmitting radio station and a receiving radio station and to radio resources that are to be used for at least one message transmission via the routing or routings, to radio stations.

Method and device for determining routings and for allocating radio resources for the determined routings in a radio communications system

A method and a system for transmitting data by a transmitter over a channel having a predetermined channel quality estimate, comprises the steps of splitting (SP) input data stream (S, S, S) to be transmitted into a plurality of data sub-streams (S, S, S); processing (SYM, SYM, SYMj) each of the plurality of data sub-streams (S, S, S) into a plurality of symbol subsets (S, S, S) by selecting a certain scheme of coded-modulation (BPSK, QPSK, 16-QAM); processing, separately, each of the plurality of symbol subsets (S, S, S), via a plurality of separate Discrete Fourier Transforms (DFT, DFT, DFT), herein after denoted as DFTs, to obtain a plurality of DFT-precoded data sub-streams (S, S, S); allocating each DFT-precoded data sub-stream (S, S, S) in a frequency resource block (RB, RB, RB), via a sub-carrier mapping module (SCM), so that for each data sub-stream (S, S, S) the selected scheme of coded-modulation (BPSK, QPSK, 16-QAM) is chosen in dependence of the values of the channel quality estimate at the frequencies of its own allocated frequency resource block (RB, RB, RB).

Adaptive modulation and coding in a SC-FDMA system

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Munich, Germany

Yan Gao