In very large-scale networks, conventional centralized power control schemes quickly become impractical owing to the huge computational burden and limited backhaul capacity. SpectrumScope.SampleRate = info.SamplingRate * aclr. Downlink power control is revisited by assuming very large-scale networks. SpectrumScope.Title = spectrumScope.Name SpectrumScope.Name = 'Operating Band Unwanted Emissions' % Create a spectrum analyzer, configure it for the waveform sampling rate % and a resolution bandwidth of 100kHz, configure and display the spectral % mask in TS 36.104 Table 6.6.3.2C-5, and perform spectrum analysis of the % waveform % Adjust waveform power to maximum rated output powerīsWaveform = resampled * 10^((P_max-aclr.EUTRAPowerdBm)/20) As the ACLR results are higher than 45 dB, they fall within the requirements. According to TS 36.104 Table 6.6.2.1-1, the minimum required ACLR for a Base Station in paired spectrum is 45 dB. HACLRResults.m displays the ACLR and plots the adjacent channel powers. The columns give the values for adjacent channels and the rows give the values for each of the configured UTRA chip rates. UTRACenterFreq : A matrix of UTRA center frequencies, in Hertz. Note that as required by the standard, these ACLRs are relative to aclr.EUTRAPowerdBm, not aclr.UTRAPowerdBm. UTRAdB : A matrix of UTRA ACLRs, in decibels relative to aclr.EUTRAPowerdBm. UTRAPowerdBm(i) gives the power of the input in an RRC filter designed for R=cfg.UTRAChipRate(i) Mchips/s, alpha=0.22, centered at 0 Hz. UTRAPowerdBm : A vector of powers, in decibels relative to 1mW in 1ohm, of the input within the UTRA channel of interest each element of the vector corresponds to each of the configured UTRA chip rates i.e. ĮUTRACenterFreq: A vector of E-UTRA center frequencies, in Hertz, for adjacent channels. in a square filter of bandwidth aclr.BandwidthConfig centered at 0Hz.ĮUTRAdB : A vector of E-UTRA ACLRs, in decibels relative to aclr.EUTRAPowerdBm, measured for adjacent channels. Therefore: aclr.SamplingRate = OSR*cfg.SamplingRate.ĮUTRAPowerdBm : The power, in decibels relative to 1mW in 1ohm, of the input within the E-UTRA channel of interest i.e. ![]() If OSR=1, this signal is the input waveform if OSR>1, this signal is the input waveform upsampled by OSR. SamplingRate : The sampling rate of the internal measurement signal from which the ACLR is calculated. to represent aclr.BandwidthACLR with at most 85% bandwidth occupancy. OSR : The integer oversampling ratio of the input waveform required to create a signal capable of representing both the E-UTRA and UTRA 1st and 2nd adjacent carriers i.e. This is the bandwidth within the channel bandwidth that contains active subcarriers.īandwidthACLR : The bandwidth required to represent both the E-UTRA and UTRA 1st and 2nd adjacent carriers the sampling rate used internally for ACLR measurements will support this bandwidth with at most 85% bandwidth occupancy. This is the overall bandwidth of the assigned channel.īandwidthConfig : The transmission bandwidth configuration associated with cfg.NDLRB or cfg.NULRB, in Hertz. ![]() Bandwidth : The channel bandwidth associated with cfg.NDLRB or cfg.NULRB, in Hertz.
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