Abstract: A method of reducing memory effect of a power amplifier (PA), for a look-up table (LUT) based memory digital pre-distortion (DPD) circuit of an electronic device is disclosed. The method comprises generating a pre-distorted signal according to a LUT including parameters of an input signal amplitude and an input signal delay associated with a bandwidth of a signal inputted to the memory DPD circuit, and outputting the pre-distorted signal to the PA for improving the nonlinearity of the PA.

Abstract: A method of reducing memory effect of a power amplifier (PA), for a look-up table (LUT) based memory digital pre-distortion (DPD) circuit of an electronic device is disclosed. The method comprises generating a pre-distorted signal according to a LUT including parameters of an input signal amplitude and an input signal delay associated with a bandwidth of a signal inputted to the memory DPD circuit, and outputting the pre-distorted signal to the PA for improving the nonlinearity of the PA.

Abstract: A method of performing a retransmission of a packet from a plurality of transmission points in a wireless communication system to a mobile device of the wireless communication system is disclosed. The method comprises transmitting the packet from a first transmission point of the plurality transmission points to the mobile device in a first transmission; and transmitting the packet from a second transmission point of the plurality transmission points to the mobile device in a second transmission, after transmitting the packet from the first transmission point in the first transmission, wherein the first transmission point and the second transmission point are different transmission points.

Abstract: A method of performing a retransmission of a packet from at least one transmission point of a wireless communication system to a mobile device in the wireless communication system is disclosed. The method comprises transmitting the packet from the at least one transmission point to the mobile device by using a first resource group in a first transmission; and transmitting the packet from the at least one transmission point to the mobile device by using a second resource group in a second transmission, after transmitting the packet in the first transmission, wherein the first resource group and the second resource group are different resource groups.

Abstract: Methods for data transmission management used in a transmitter are provided. The method comprises the steps of: encoding M uncoded packets into N coded packets with Q-packet error correction capability using concatenated encoding, where M?N, and Q?1; sequentially transmitting a set or all of the N coded packets to the at least one receiver; receiving at least one feedback information from the at least one receiver, wherein the at least one feedback information comprises at least one ACK or NACK information for indicating decoding statuses of the transmitted coded packets, each of the transmitted coded packets having one of the decoding statuses corresponding thereto; and determining whether to perform a retransmission procedure to retransmit a dedicated packet to the at least one receiver according to collected ACK/NACK included in the feedback information.

Abstract: A mobile communications device is provided with a wireless module and a controller module. The wireless module receives a plurality of downlink signals from a service node and determines a plurality of status indicators respectively corresponding to the downlink signals. The controller module determines whether a radio link failure has occurred according to the status indicators, and transmits at least one uplink signal via the wireless module to indicate information of the radio link failure to the service node in response to the occurrence of the radio link failure.

Abstract: An apparatus is provided for allocating uplink resources in a system in which downlink component carrier bands are aggregated and uplink component carrier bands are aggregated. The apparatus includes a processor configured to perform or cause the apparatus to perform a number of functions. The functions include receiving an assignment or an indication of an assignment of one or more resource indices to the apparatus. Additional resource indices for the apparatus may be derived as a function of an assigned resource index. The assigned resource indices and/or additional resource indices may be pre-assigned to respective pairs of downlink and uplink component carrier bands, or may be mapped to uplink component carriers. The apparatus may then be enabled to transmit or may prepare for transmission uplink control signals in an uplink component carrier band in accordance with an allocation of uplink resources specified by one of the resource indices.

Abstract: A method of providing interference avoidance in uplink CoMP may include generating an orthogonal frequency division multiplexing (OFDM) symbol for uplink transmission to coordinated multi-point (CoMP) cells, and providing a cyclic-prefix and a cyclic-postfix for the OFDM symbol generated to reduce uplink interference without backhaul transmission for delay or timing advance information. A corresponding apparatus and computer program product are also provided. An alternative method of providing interference avoidance in uplink CoMP may include measuring timing differences between downlink signals received at a mobile terminal in connection with coordinated multi-point (CoMP) transmission from a serving cell and one or more coordinating cells and adjusting uplink transmission timing for signals to be transmitted from the mobile terminal based on the timing differences measured. A corresponding apparatus and computer program product are also provided.

Abstract: A method for a user equipment to transmit uplink control information to a base station, the base station being configured to receive uplink control information on a plurality of groups of subcarriers. The method includes: randomly determining one of the groups of subcarriers; and transmitting uplink control information on the randomly determined group of subcarriers.