RU2003106808A - DEVICE AND METHOD FOR TRANSMISSION POWER TRANSMISSION IN MOBILE COMMUNICATION SYSTEM - Google Patents

Claims (36)

1. The transmission power control device in a mobile communication system that supports one assigned frequency (LF), containing a group of channel devices for generating a modulating frequency band signal of the in-phase (I) channel and a modulating frequency band signal of the quadrature (Q) channel from the data of each channel , a pulse filter driver for filtering and generating pulses of baseband signals, a power controller for adjusting peak ratio values power to average power (SPSM) of the signals filtered and pulse generated, in accordance with the threshold power required for linear power amplification, a frequency converter designed to convert signals for which power was controlled with increasing frequency to high-frequency (HF) signals and the issuance of these RF signals. 2. The transmission power control device according to claim 1, wherein the power controller comprises a scale determining unit for receiving the input signals of the common-mode and quadrature channels from the pulse shaper, measuring the instantaneous power of the initial signals of the common-mode and quadrature channels for each sampling period, comparison instantaneous power with a threshold power and determining scale factors in accordance with the comparison results, the compensation signal calculation unit, designed to calculating the resulting signals by multiplying the original common-mode and quadrature channel signals by scale factors and calculating compensation signals by subtracting the original common-mode and quadrature channel signals from the resulting signals, a signal delay unit designed to delay the initial common-mode and quadrature channel signals for the time required by the signal computing unit compensation and the unit for determining the scale to carry out their operations, the adder intended for the sums delayed signals with signals that have passed filtering and pulse formation. 3. The transmission power control device according to claim 2, in which the power controller further comprises a maximum signal level determining unit for receiving compensation signals from the compensation signal calculation unit at each sampling period and selecting compensation signals with maximum levels, a pulse shaper, designed to filter and generate pulses of selected compensation signals with maximum levels before summing. 4. The transmission power control device according to claim 3, in which the unit for determining the maximum signal level selects compensation signals with maximum levels among consecutive non-zero compensation signals. 5. The transmission power control device according to claim 2, in which the scale factors are determined by the following equation: if the instantaneous power ≤ threshold power, then the scale factor = 1, if instantaneous power> threshold power, then scale factor

. 6. The transmission power control device according to claim 2, in which the threshold power is determined by the following equation: P _threshold = average power (P _average ) · 10 ^{(power loss / 10)} , where P _threshold is the threshold power, P _average is the average power in the mobile communication system, and the power loss is the ratio of the maximum power required to achieve linear amplification to the average power. 7. A method for controlling transmit power in a mobile communication system supporting one assigned frequency (LF), which includes the following steps: generating a baseband signal of the in-phase (I) channel and a baseband signal of the quadrature (Q) channel from the data of each channel, filtering and generating pulses of baseband signals, adjust the ratio of peak power to average power (SPSM) of signals that have passed filtering and pulse shaping, in accordance with the threshold power, t required for linear power amplification, the signals for which power control was performed are converted with increasing frequency into high-frequency (HF) signals and these HF signals are generated. 8. The method according to claim 7, in which the step of adjusting the SPSM includes the steps of receiving the initial signals that have passed filtering and pulse shaping, at each sampling period measure the instantaneous power of the source signals that have passed the filtering and pulse shaping, and determining the scale factors by comparing the instantaneous power with the threshold power, calculating the resulting signals by multiplying the original signals by the scale factors, and calculating the compensation signals in the middle By subtracting the initial signals from the resulting signals, the compensation signals are combined with the initial signals that have passed through filtering and pulse formation. 9. The method of claim 8, which further includes the steps that at each sampling period receive compensation signals and select compensation signals with maximum levels, filter and generate pulses of the selected compensation signals with maximum levels before combining. 10. The method according to claim 9, in which the compensation signals with maximum levels are selected among consecutive non-zero compensation signals. 11. The method of claim 8, which further includes the step that the original signals are delayed for a predetermined time so that by the time they are combined with the selected compensation signals, these signals coincide in phase. 12. The method according to claim 8, in which the scale factors are determined by the following equation: if the instantaneous power ≤ threshold power, then the scale factor = 1, if instantaneous power> threshold power, then scale factor . 13. The method of claim 8, in which the threshold power is determined by the following equation: P _threshold = average power (P _average ) · 10 ^{(power loss / 10)} , where P _threshold is the threshold power, P _average is the average power in the mobile communication system, and the power loss is the ratio of the maximum power required to achieve linear amplification to the average power. 14. A transmission power control device in a mobile communication system supporting a plurality of assigned frequencies (LF), comprising a plurality of groups of channel devices related to each of the LF and intended for generating baseband signals of a common-mode (I) channel and quadrature baseband signals ( Q) a channel from the data of each channel, a plurality of pulse shaper filters connected to groups of channel devices and designed to filter and generate pulses of polo signals sys of modulating frequencies corresponding to the LF frequencies, an LF power controller designed to control the values of the ratio of peak power to average power (SPS) of signals that have passed filtering and pulse formation in accordance with the threshold power required for linear power amplification. 15. The transmission power control device according to claim 14, wherein the LF power controller comprises a scale determining unit for receiving source signals of the in-phase and quadrature channels corresponding to the low-frequency frequencies from pulse shaper filters, measuring the instantaneous power of the source signals of the in-phase and quadrature channels on each sampling period, comparing instantaneous power with threshold power and determining scale factors in accordance with the comparison results, many controllers m generality, the LF corresponding to the frequencies and intended for controlling PAPR values of original FA signals using the scale factors, an adder adapted for summing the output signals of the power controllers. 16. The transmission power control device according to claim 15, wherein each of the power controllers comprises a compensation signal calculation unit for computing the resulting signals by multiplying the original in-phase and quadrature channels by scale factors and calculating the compensation signals by subtracting the original in-phase and quadrature channels from the resulting signals, a signal delay unit designed to delay the original in-phase and quadrature signals the time required for the compensation signal calculation unit and the scale determination unit to perform its operations, an adder designed to summarize the delayed signals with the compensation signals. 17. The transmission power control device according to clause 16, in which each of the power controllers further includes a maximum signal level determining unit for receiving compensation signals at each sampling period and selecting compensation signals with maximum levels, a maximum level pulse filter driver signal intended for filtering and forming pulses of selected compensation signals with maximum levels. 18. The transmission power control device according to claim 17, wherein the maximum signal level determining unit selects compensation signals with maximum levels among consecutive non-zero compensation signals. 19. The transmission power control device according to claim 15, wherein if the plurality of low frequencies has the same service class, then each of the scale factors is determined according to the following equation:

where P _i (i = 1, 2, ..., N) is the instantaneous signal power of the i-th LF; P _threshold - threshold power; Si is the scale factor for the i-th low frequency. 20. The transmission power control device according to claim 15, wherein if the plurality of low frequencies has different classes of service, then each of the scale factors is determined according to the following equation:

where S _i is the scale factor of the i-th LF (i = 1, 2, ..., N), α _i is the weight coefficient assigned to the i-th LF; P _threshold - threshold power; P _i - instantaneous signal power of the i-th bass. 21. The transmission power control device according to claim 15, wherein if the plurality of low frequencies has different classes of service, then each of the scale factors is determined according to the following equation:

where P _i is the instantaneous power (i = 1, 2, ..., N); P _{threshold_i} is the threshold power corresponding to the service class of the i-th LF; S _i - scale factor for the signal of the i-th bass. 22. The transmit power control device according to item 21, in which, if a signal of some LF having a higher class of service than the signal of the i-th LF has a scale factor of 1, the new value of the threshold power of the signal of the i-th LF is calculated by summing the ith threshold power P _threshold-i with the amount of power remaining from the threshold power of the low frequency that has a higher class of service. 23. The transmission power control device according to claim 22, wherein the remaining power value is the difference between the threshold power and the instantaneous power of the LF signal with a higher class of service. 24. The transmission power control device according to clause 15, in which the threshold power is determined by the following equation: P _threshold = average power (P _average ) · 10 ^{(power loss / 10)} , where P _threshold is the threshold power, P _average is the average power in the mobile communication system, and the power loss is the ratio of the maximum power required to achieve linear amplification to the average power. 25. A method for controlling transmit power in a mobile communication system supporting a plurality of assigned frequencies (LF), which includes the following steps: for each LF, a baseband signal of a common-mode (I) channel and a baseband signal of a quadrature (Q) channel are generated from data of each channel, filtering and generating pulses of baseband signals corresponding to the low-frequency frequencies are performed, the ratio of peak power to average power (SPSM) of the signals filtered and generated is regulated and pulses, according to a threshold power required for linear power amplification, and outputting signals which control the PAPR in HF was performed. 26. The method according to claim 25, wherein the step of adjusting the SPSM includes the following steps: receiving the source signals of each LF that have passed filtering and pulse shaping, at each sampling period measure the instantaneous power of these source signals that have passed the filtering and pulse shaping, and by comparing the instantaneous power with the threshold power determine the scale factors for a given low frequency, adjust the SPSM of the original low frequency signals using a scale factor, combine the low frequency signals for which Neno regulation PAPR. 27. The method according to p. 26, in which the step of adjusting the SPSM includes the following steps: calculate the resulting signals by multiplying the original LF signals by scale factors and calculate the compensation signals by subtracting the original LF signals from the resulting signals, summing the compensation signals with the original signals. 28. The method according to item 27, which further includes the following steps: at each sampling period, receive compensation signals and select compensation signals with maximum levels, filter and generate pulses of the selected compensation signals with maximum levels before summing. 29. The method according to p, in which the compensation signals with maximum levels are selected among consecutive non-zero compensation signals. 30. The method according to item 27, which further includes a stage in which the original signals are delayed for a predetermined time so that by the time of their summation with the selected compensation signals, these signals coincided in phase. 31. The method according to p, according to which, if the set of LF has the same class of service, then each of the scale factors is determined according to the following equation:

where P _i (i = 1, 2, ..., N) is the instantaneous signal power of the i-th LF; P _threshold - threshold power; S _i - scale factor for the i-th bass. 32. The method according to p, according to which, if the set of LF has different classes of service, then each of the scale factors is determined according to the following equation:

where S _i is the scale factor of the i-th LF (i = 1, 2, ..., N); α _i is the weight coefficient assigned to the i-th LF; P _threshold - threshold power; P _i - instantaneous signal power of the i-th bass. 33. The method according to p, according to which, if the set of LF has different classes of service, then each of the scale factors is determined according to the following equation:

where P _i is the instantaneous power (i = 1, 2, ..., N) of the i-th low frequency; P _threshold-i threshold power corresponding to the class of service of the i-th LF; S _i - scale factor for the signal of the i-th bass. 34. The method according to claim 33, wherein if a signal of a certain LF having a higher service class than the signal of the i-th LF has a scale factor of 1, the new value of the threshold power of the signal of the i-LF is calculated by summing i th threshold power (P _threshold-i ) with the amount of power remaining from the threshold power of the low frequency that has a higher class of service. 35. The method according to clause 34, in which the remaining power is the difference between the threshold power and the instantaneous power of the LF signal with a higher class of service. 36. The method according to p, according to which the threshold power is determined by the following equation: P _threshold = average power (P _average ) · 10 ^{(power loss / 10)} , where P _threshold is the threshold power, P _average is the average power in the mobile communication system, and the power loss is the ratio of the maximum power required to achieve linear amplification to the average power.