A control device for a wireless communication system is configured to obtain a first channel estimation for a first client device and a second channel estimation for a second client device, to allocate a common resource block (RB) for concurrent wireless transmission between a first network node and the first client device using a first radio access technology (RAT) and between a second network node and the second client device using a second RAT based on the first channel estimation and the second channel estimation. The control device is further configured to allocate a first precoder for the common RB for the first client device and a second precoder for the common RB for the second client device. The first precoder and the second precoder are configured for spatially multiplexing the concurrent wireless transmission.

A mobile station configured to perform radio communication using spatial multiplexing with a base station, the mobile station including: a controller configured to select a data unit with highest channel quality, and to select a spatial layer with highest reception quality belonging to the selected data unit; and a transmitter configured to transmit spatial coding information and first identification information to the base station, the spatial coding information corresponding to the number of spatial layers, and the first identification information identifying the spatial layer selected, and a layer indicator to determine a precoding matrix.

A mobile station is configured to perform radio communication using spatial multiplexing with a base station. The mobile station includes a selecting unit and a transmitting unit. The selecting unit selects a data unit with highest channel quality from a plurality of data units and selects a spatial layer with highest reception quality from spatial layers belonging to the data unit. The transmitting unit transmits identification information of the spatial layer selected by the selecting unit to the base station as control information.

A multiple-input multiple output (MIMO) wireless receiver is provided to detect data in MIMO streams received via a multi-antenna system. A filter based detector performs a first pass at decoding codewords in a MIMO bitstream, and then a parity check is performed to determine that the codewords were decoded correctly. If one or more codewords are decoded correctly, those codewords can be used as a candidate codeword and used to generate a bit log likelihood ratio as an input for a second MIMO detector pass which uses a list based MIMO detector. The first pass with a high speed, simple detector facilitates decreasing the list size for the second, optimum list based detector which helps improve overall throughput.

A configurable transceiver includes a first transmitter, an edge rate controller, a second transmitter, a subtractor, a bandwidth controller and a main controller. The first transmitter is configured to generate a first signal for transmission via a transmission link. The second transmitter is configured to generate a replica signal associated with the first signal. The edge rate controller is communicatively coupled to the first and/or second transmitter and is configured to control an edge rate parameter of the first and/or second signal. The subtractor is configured to subtract the replica signal from a signal received via the transmission link. The bandwidth controller is configured to control a bandwidth parameter of a difference signal received from the output of the subtractor. The main controller chooses edge rate and bandwidth control words per desired link rates. It can also automatically find the maximum possible link speed.

This invention presents methods for estimating MU-MIMO channel information using SU-MIMO channel information to choose a modulation and channel coding appropriate for the quality of the MU-MIMO channels, for adaptively selecting MU-MIMO precoding methods based on estimations of a plural of UEs and for compensating hardware impairments in MU-MIMO precoding.

A multiple-input multiple output (MIMO) wireless receiver is provided to detect data in MIMO streams received via a multi-antenna system. A filter based detector performs a first pass at decoding codewords in a MIMO bitstream, and then a parity check is performed to determine that the codewords were decoded correctly. If one or more codewords are decoded correctly, those codewords can be used as a candidate codeword and used to generate a bit log likelihood ratio as an input for a second MIMO detector pass which uses a list based MIMO detector. The first pass with a high speed, simple detector facilitates decreasing the list size for the second, optimum list based detector which helps improve overall throughput.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). A channel information feedback in a wireless communication system and a method of a receiving node of a wireless communication system are provided. The method includes transmitting an indication representing an indexing rule for channel values and block-wise quantized channel information, and receiving beamformed signals mapped to an antenna based on the indexing rule.

A multiple-input multiple output (MIMO) wireless receiver is provided to detect data in MIMO streams received via a multi-antenna system. A filter based detector performs a first pass at decoding codewords in a MIMO bitstream, and then a parity check is performed to determine that the codewords were decoded correctly. If one or more codewords are decoded correctly, those codewords can be used as a candidate codeword and used to generate a bit log likelihood ratio as an input for a second MIMO detector pass which uses a list based MIMO detector. The first pass with a high speed, simple detector facilitates decreasing the list size for the second, optimum list based detector which helps improve overall throughput.