Abstract:
Provided is a terminal including a receiver, which, in operation, receives a Channel State Information Reference Signal (CSI-RS) candidate list for CSI-RS configuration information. The CSI-RS candidate list is indicated as Radio Resource Control (RRC) control information for respective terminals. The terminal further includes circuitry, which, in operation, specifies at least one CSI-RS resource information of a measurement target based on the CSI-RS candidate list, and measures a reception power using the specified CSI-RS resource information. The terminal also includes a transmitter, which, in operation, reports the result of the reception power measurement. A reception power measurement method is also provided.
Abstract:
The invention relates methods for time aligning uplink transmissions by a mobile terminal in a mobile communication system, and to methods for performing a handover of a mobile terminal to a target aggregation access point. The invention is also providing apparatus and system for performing these methods, and computer readable media the instructions of which cause the apparatus and system to perform the methods described herein. In order to allow for aligning the timing of uplink transmissions on uplink component carriers, where different propagation delays are imposed on the transmissions on the uplink component carriers, the inventions suggests to time align the uplink component carriers based on a reference time alignment of a reference cell and a reception time difference or propagation delay difference between the downlink transmissions in the reference cell and the other radio cells, the uplink component carriers of which need to be time aligned.
Abstract:
The invention relates to methods for reporting on downlink timings by a mobile terminal in a mobile communication system. In order to allow for an aggregation access point to obtain information on propagation delay differences of downlink transmissions on aggregated serving cells, the invention suggests the mobile terminal to report timing information based on reception time difference information for a the target/reference cell. The mobile terminal performs measurements relating to transmission and/or reception time differences on the target/reference cell, and reports same to the eNodeB. The eNodeB compares the measurement result to a predefined maximum propagation delay time difference. Alternatively, the mobile terminal performs the measurements, compares same to the predefined maximum propagation delay time difference and then report the comparison result to the eNodeB.
Abstract:
A control unit (208) employs instruction information which instructs a unit band which is employed in the transmission of a response signal to transmit the response signal. A first unit band and a second unit band which differs from the first unit band are included in the plurality of unit bands. The first unit band is employed in the transmission of the response signal when downstream data is simultaneously assigned to both the first unit band and the second unit band. When at least the second unit band downstream circuit data is assigned, the second unit band is employed in making a notification of the instruction information. When the downstream circuit data is simultaneously assigned to both the first unit band and the second unit band, the unit band which is denoted in the instruction information is the first unit band.
Abstract:
A control unit (208) employs instruction information which instructs a unit band which is employed in the transmission of a response signal to transmit the response signal. A first unit band and a second unit band which differs from the first unit band are included in the plurality of unit bands. The first unit band is employed in the transmission of the response signal when downstream data is simultaneously assigned to both the first unit band and the second unit band. When at least the second unit band downstream circuit data is assigned, the second unit band is employed in making a notification of the instruction information. When the downstream circuit data is simultaneously assigned to both the first unit band and the second unit band, the unit band which is denoted in the instruction information is the first unit band.
Abstract:
The present invention relates to performing radio resource management tasks in a communication system including at least a base station and a terminal. In order to avoid inconsistencies in executing the radio resource management tasks for the dual-priority devices, which may run a delay-tolerant and a normal application at the same time, when the device priority changes, the change is indicated to the base station either from the terminal or from the core network. The device priority may be indicated as an overall priority per device or as a priority per bearer configured for the device.
Abstract:
The invention relates methods for avoiding in-device coexistence, IDC, interference by a mobile terminal in a mobile communication system. The invention is also providing apparatus for performing these methods, and computer readable media the instructions of which cause the apparatus to perform the methods described herein. In order to allow avoiding IDC interference, an IDC interference indication is reported for one of a first or second cell on which an interference condition is detected; in response an activation/deactivation pattern is received for the one cell, the pattern indicating an off-duration and an offset specifying a time-period during which communication via the cell is to be deactivated; based thereon, subframes are determined from which on communication via the one cell is to be deactivated and re-activated, respectively; and communication on the one cell is deactivated and is re-activated communication at the determined first and second subframe.
Abstract:
Provided is a terminal whereby the accuracy of CSI measurement results in the terminal can be assured, and declines in throughput prevented. In this terminal, a reception processor (203) receives reference signals respectively transmitted from a plurality of transmission points. A CSI generator (206) identifies a second subframe on the basis of a first subframe respectively established for each of the plurality of transmission points, and using the reference signals from the plurality of transmission points, generates channel information in a subframe other than the second subframe, without generating channel information in the second subframe. A transmission signal former (208) transmits the generated channel information.
Abstract:
Provided is a terminal whereby the accuracy of CSI measurement results in the terminal can be assured, and declines in throughput prevented. In this terminal, a reception processor (203) receives reference signals respectively transmitted from a plurality of transmission points. A CSI generator (206) identifies a second subframe on the basis of a first subframe respectively established for each of the plurality of transmission points, and using the reference signals from the plurality of transmission points, generates channel information in a subframe other than the second subframe, without generating channel information in the second subframe. A transmission signal former (208) transmits the generated channel information.
Abstract:
The invention relates to methods for avoiding in-device coexistence (IDC) interference in a mobile terminal in a mobile communication system, apparatus for performing these methods, and computer readable media instructions to cause the apparatus to perform the methods. In order to avoid IDC interference, an IDC interference indication is reported for at least one of a first cell and a second cell on which an interference condition is detected. In response, an activation/deactivation pattern is received for at least one of the first and second cells for which the interference condition is detected. The activation/deactivation pattern indicates an off-duration and an offset specifying a time-period during which communication via the at least one of the first and second cells is to be deactivated. According to the activation/deactivation pattern, first and second subframes are determined, at which the communication via the at least one of the first and second cells is to be deactivated and re-activated, respectively.