毕业论文外翻译-功率控制分析.doc

2014 届 本 科 毕 业 设 计（外文 翻 译） 学 院： 专 业： 姓 名： 学 号： 指导教师： 完成时间： 二〇一四年三月  Power control Downlink power control determines the energy per resource element (EPRE). The term resource element energy denotes the energy prior to CP insertion. The term resource element energy also denotes the average energy taken over all constellation points for the modulation scheme applied. Uplink power control determines the average power over a SC-FDMA symbol in which the physical channel is transmitted. Physical uplink shared channel-UE behaviour The setting of the UE Transmit power for the physical uplink shared channel (PUSCH) transmission in subframe i is defined by [dBm] where, is the configured UE transmitted power defined in [6] is the bandwidth of the PUSCH resource assignment expressed in number of resource blocks valid for subframe i. is a parameter composed of the sum of a cell specific nominal component provided from higher layers for j=0 and 1 and a UE specific component provided by higher layers for j=0 and 1. For PUSCH (re)transmissions corresponding to a semi-persistent grant then j=0 , for PUSCH (re)transmissions corresponding to a dynamic scheduled grant then j=1 and for PUSCH (re)transmissions corresponding to the random access response grant then j=2. and , where the parameter PREAMBLE_INITIAL_RECEIVED_TARGET_POWER [8] () and are signalled from higher layers. For j =0 or 1, is a 3-bit cell specific parameter provided by higher layers. For j=2, PL is the downlink pathloss estimate calculated in the UE in dB and PL = referenceSignalPower – higher layer filtered RSRP, where referenceSignalPower is provided by higher layers and RSRP is defined in [5] and the higher layer filter configuration is defined in [11] for and 0 for where is given by the UE specific parameter deltaMCS-Enabled provided by higher layers for control data sent via