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1、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： 二一四年三月Power controlDownlink 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 ove
2、r 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 behaviourThe setting of the UE Transmit power for the physical uplink shared channel (P
3、USCH) transmission in subframe i is defined by dBmwhere, 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
4、 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 corre
5、sponding 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
6、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 hi
7、gher layerso for control data sent via PUSCH without UL-SCH data and for other cases. where is the number of code blocks, is the size for code block , is the number of CQI bits including CRC bits and is the number of resource elements determined as, where , , and are defined in 4. o for control data
8、 sent via PUSCH without UL-SCH data and for other cases. is a UE specific correction value, also referred to as a TPC command and is included in PDCCH with DCI format 0 or jointly coded with other TPC commands in PDCCH with DCI format 3/3A whose CRC parity bits are scrambled with TPC-PUSCH-RNTI. The
9、 current PUSCH power control adjustment state is given by which is defined by:o if accumulation is enabled based on the UE-specific parameter Accumulation-enabled provided by higher layers or if the TPC command is included in a PDCCH with DCI format 0 where the CRC is scrambled by the Temporary C-RN
10、TI where was signalled on PDCCH with DCI format 0 or 3/3A on subframe , and where is the first value after reset of accumulation. The value of is For FDD,= 4 For TDD UL/DL configurations 1-6, is given in Table 1.1-1 For TDD UL/DL configuration 0o If the PUSCH transmission in subframe 2 or 7 is sched
11、uled with a PDCCH of DCI format 0 in which the LSB of the UL index is set to 1, = 7o For all other PUSCH transmissions, is given in Table 1.1-1. The UE attempts to decode a PDCCH of DCI format 0 with the UEs C-RNTI or SPS C-RNTI and a PDCCH of DCI format 3/3A with this UEs TPC-PUSCH-RNTI in every su
12、bframe except when in DRX If DCI format 0 and DCI format 3/3A are both detected in the same subframe, then the UE shall use the provided in DCI format 0. dB for a subframe where no TPC command is decoded or where DRX occurs or i is not an uplink subframe in TDD. The dB accumulated values signalled o
13、n PDCCH with DCI format 0 are given in Table 1.1-2. If the PDCCH with DCI format 0 is validated as a SPS activation or release PDCCH, then is 0dB. The dB accumulated values signalled on PDCCH with DCI format 3/3A are one of SET1 given in Table1.1-2 or SET2 given in Table1.1-3 as determined by the pa
14、rameter TPC-Index provided by higher layers. If UE has reached maximum power, positive TPC commands shall not be accumulated If UE has reached minimum power, negative TPC commands shall not be accumulated UE shall reset accumulation when value is changed by higher layers when the UE receives random
15、access response messageo if accumulation is not enabled based on the UE-specific parameter Accumulation-enabled provided by higher layers where was signalled on PDCCH with DCI format 0 on subframe The value of is For FDD,= 4 For TDD UL/DL configurations 1-6, is given in Table 1.1-1 For TDD UL/DL configuration 0o If the PUSCH transmission in subframe 2 or 7 is scheduled with a PDCCHof DCI format 0 in which the LSB of the UL index is set to 1, = 7o For all other PUSCH transmi
