The present invention relates to an apparatus and a method for performing measurement reporting considering in-device coexistence interference. The present invention provide a user equipment transmitting a measurement report in a wireless communication system, comprising an interference detection unit, an assistant information generation unit, a measurement controller and a transmitter. According to the present invention, a measurement procedure can be clearly defined in an interference delicate band where in-device coexistence interference occurs and scheduling restrictions on an eNodeB due to measurement reporting about an interference delicate band can be reduced.

Aspects of the disclosure relate to methods and apparatus of time-domain multiplexing (TDM) for reference signals (RS) and data using a modified cyclic prefix. A reference signal (RS) and data are multiplexed either in a single symbol or in two time consecutive symbols that respectively including the RS and data. The cyclic prefix (CP) is added to the single symbol using a portion of the RS or to a first symbol of the two time consecutive symbols using a portion of the RS. The CP may be copied from the RS or the end of the symbol, but not the data, in a manner that affords a virtual Time Division Multiplexing (TDM) of the RS and data before discrete Fourier transform (DFT) spreading is performed in a transceiver to provide lower peak to average power ratios and no Inter-symbol interference.

Aspects of the disclosure relate to methods and apparatus of time-domain multiplexing (TDM) for reference signals (RS) and data using a modified cyclic prefix. A reference signal (RS) and data are multiplexed either in a single symbol or in two time consecutive symbols that respectively including the RS and data. The cyclic prefix (CP) is added to the single symbol using a portion of the RS or to a first symbol of the two time consecutive symbols using a portion of the RS. The CP may be copied from the RS or the end of the symbol, but not the data, in a manner that affords a virtual Time Division Multiplexing (TDM) of the RS and data before discrete Fourier transform (DFT) spreading is performed in a transceiver to provide lower peak to average power ratios and no Inter-symbol interference.

The purpose is to estimate a selection interval of transmission slots of other stations. A TDMA communication device may include a receiver, an estimating information acquirer, and a selection interval estimator. The receiver may receive communication data from another station through any of a plurality of reception slots within a selection interval set based on a given nominal increment. The estimating information acquirer may acquire estimation information for an estimated selection interval of another station based on the communication data received from another station. The selection interval estimator may estimate the estimated selection interval based on the estimation information.

The purpose is to estimate a selection interval of transmission slots of other stations. A TDMA communication device may include a receiver, an estimating information acquirer, and a selection interval estimator. The receiver may receive communication data from another station through any of a plurality of reception slots within a selection interval set based on a given nominal increment. The estimating information acquirer may acquire estimation information for an estimated selection interval of another station based on the communication data received from another station. The selection interval estimator may estimate the estimated selection interval based on the estimation information.

Methods and apparatus for dynamic acknowledgement list selection in detection of uplink control channel formats. In an exemplary embodiment, an apparatus includes a dynamic acknowledgement (ACK) list allocation circuit that generates a dynamic ACK list that includes one or two most likely ACK candidates, and a top-Q candidate CQI bits detector that dynamically allocates a detection branch to each of the one or two most likely ACK candidates to detect top-Q candidate CQI bits. The apparatus also includes a merger circuit that mergers the top-Q candidate CQI bits detected for the one or two most likely ACK candidates to generate a merged list, a top-Q CQI symbol generator that generates top-Q CQI symbols for the top-Q candidate CQI bits detected for the one or two most likely ACK candidates, and a joint detector that detects transmitted CQI bits and ACK bits.

A front-end module that uses a carrier aggregation scheme in which Band, which is selected from a low-frequency band group, and Band, which is selected from a high-frequency band group, are used simultaneously for communication includes a plurality of signal paths that connect a power amplifier module to an antenna element, and an antenna switch module that switches connection between the antenna element and the plurality of signal paths. Harmonics of Band have frequencies that are included in Band. The front-end module further includes a switch element disposed in a TDD transmission path.

A front-end module that uses a carrier aggregation scheme in which Band, which is selected from a low-frequency band group, and Band, which is selected from a high-frequency band group, are used simultaneously for communication includes a plurality of signal paths that connect a power amplifier module to an antenna element, and an antenna switch module that switches connection between the antenna element and the plurality of signal paths. Harmonics of Band have frequencies that are included in Band. The front-end module further includes a switch element disposed in a TDD transmission path.

A communication apparatus includes a receiver and a decoder. The receiver includes a plurality of antenna elements and, in operation, receives from a base station apparatus a modulated signal mapped to one of a plurality of subframes defined in a frame corresponding to a communicable range to which the communication apparatus belongs. The plurality of subframes are defined by time-division, frequency-division, or time-and-frequency division of the frame. A maximum number of modulated signals that can be simultaneously transmitted in a subframe from the base station apparatus varies depending on the communicable range. The decoder, in operation, decodes the received modulated signal.

A communication apparatus includes a receiver and a decoder. The receiver includes a plurality of antenna elements and, in operation, receives from a base station apparatus a modulated signal mapped to one of a plurality of subframes defined in a frame corresponding to a communicable range to which the communication apparatus belongs. The plurality of subframes are defined by time-division, frequency-division, or time-and-frequency division of the frame. A maximum number of modulated signals that can be simultaneously transmitted in a subframe from the base station apparatus varies depending on the communicable range. The decoder, in operation, decodes the received modulated signal.