WO2015139168A1 - 外环功率控制方法、装置和设备 - Google Patents

外环功率控制方法、装置和设备 Download PDF

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Publication number
WO2015139168A1
WO2015139168A1 PCT/CN2014/073503 CN2014073503W WO2015139168A1 WO 2015139168 A1 WO2015139168 A1 WO 2015139168A1 CN 2014073503 W CN2014073503 W CN 2014073503W WO 2015139168 A1 WO2015139168 A1 WO 2015139168A1
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Prior art keywords
target value
signal
performance
control channel
error rate
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PCT/CN2014/073503
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English (en)
French (fr)
Inventor
朱有团
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP14886500.9A priority Critical patent/EP3110029B1/en
Priority to PCT/CN2014/073503 priority patent/WO2015139168A1/zh
Priority to CN201480000324.3A priority patent/CN105900350B/zh
Publication of WO2015139168A1 publication Critical patent/WO2015139168A1/zh
Priority to US15/265,601 priority patent/US10237831B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/12—Outer and inner loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/16—Threshold monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/225—Calculation of statistics, e.g. average, variance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to an outer loop power control method, apparatus, and device. Background technique
  • WCDMA Wideband Code Division Multiple Access
  • Dedicated dedicated physical control channel
  • DPCCH Physical Control Channel
  • HS-DPCCH High Speed Dedicated Physical Control Channel
  • the uplink control channel for example, a Physical Uplink Control Channel (PUCCH)
  • PUCCH Physical Uplink Control Channel
  • Physical Downlink Control Channel Physical Downlink Control Channel
  • the base station eNodeB schedules the resources according to the CQI information fed back by the user equipment UE.
  • CQI channel quality indicator
  • the UE needs to frequently feed back CQI.
  • the information therefore, the UE needs a higher transmission power, which increases the power consumption of the information, and causes the receiving level on the PUCCH of the base station to be higher, which may cause interference to the neighboring area.
  • the quality of the uplink control channel is controlled by setting a signal to noise ratio target value (ie, a minimum signal to noise ratio).
  • a signal to noise ratio target value ie, a minimum signal to noise ratio.
  • the UE transmit power is controlled by a method in which the signal to noise ratio is greater than a set signal to noise ratio target value, and the signal to noise ratio target value is greatly different under different channel conditions, since it is difficult to perform an accurate channel. Identification, and thus the signal-to-noise ratio target value cannot be accurately set, thereby accurately controlling the quality of the uplink control channel.
  • Embodiments of the present invention provide an outer loop power control method, apparatus, and device to overcome the problem of inaccurate control signal to noise ratio target values in the prior art.
  • an embodiment of the present invention provides an outer loop power control method, including:
  • the performance mapping indicator includes: a pilot signal The bit error rate, the bit error rate of the reference signal, and the missed detection probability of the control channel reference measurement; wherein the missed detection probability of the control channel reference measurement is a channel quality indicator CQI or an enhanced dedicated physical control channel in a statistical preset time
  • the ratio of the decoded signal power to the noise power of the E-DPCCH is less than the probability that the number of missed detections of the set reference measurement threshold is the total number of times;
  • the determining, according to a target value of each performance indicator of a control channel of the user equipment UE in each cell, determining that the UE is in the at least one of the respective cells The target value of the performance mapping indicator, including:
  • the target value of the performance indicator of the control channel based on the decoding result is mapped to the target value of the missed detection probability of the control channel CCH reference measurement.
  • the target value of the at least one performance mapping indicator of the UE in each cell and the corresponding The measured value of the performance mapping indicator determines the signal to noise ratio target value of the UE, including:
  • the error rate of the pilot signal or the error rate of the reference signal is greater than a target value of the error rate of the pilot signal or the bit error rate of the reference signal, increase the signal to noise ratio target Or, if the measured value of the missed detection probability of the control channel reference measurement is greater than a target value of the missed detection probability of the control channel reference measurement, increasing the signal to noise ratio target value; or If the error rate of the pilot signal or the measured value of the reference signal error rate is smaller than a target value of the error rate of the pilot signal or the error rate of the reference signal, and the missed detection of the control channel reference measurement The measured value of the probability is less than the target value of the missed detection probability of the control channel reference measurement, and the signal to noise ratio target value is decreased.
  • the method further includes:
  • the determining, by the measured value of each performance indicator of the control channel that is counted in a preset period, adjusting the at least one performance mapping Target values for the indicator including:
  • the determining, according to the UE, the at least one performance mapping indicator in each cell After the target value and the measured value of the corresponding performance mapping indicator determine the signal to noise ratio target value of the UE, the method further includes:
  • the method before the method is performed, the method further includes:
  • the UE transmits no data on the dedicated channel DCH or the enhanced dedicated channel E-DCH within a preset period.
  • the performing, according to the UE, at least one performance mapping indicator in each cell The target value and the measured value of the corresponding performance mapping indicator determine the signal to noise ratio target value of the UE, including: according to the target value of the at least one performance mapping indicator of the UE in each cell and the measured value of the corresponding performance mapping indicator Determining a signal to noise ratio target value of each of the cells;
  • an embodiment of the present invention provides an outer loop power control apparatus, including: a mapping module, configured to determine, according to a target value of each performance indicator of the control channel of the user equipment UE in each cell, a target value of the at least one performance mapping indicator of the UE in the each cell, where the performance mapping indicator
  • the method includes: a bit error rate of the pilot signal, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement, where the missed detection probability of the control channel reference measurement is a channel quality indicator CQI or enhancement in a statistical preset time
  • the ratio of the decoded signal power to the noise power of the dedicated physical control channel E-DPCCH is less than the probability of the number of missed detections of the set reference measurement threshold;
  • An acquiring module configured to acquire, by the UE, a measured value of at least one performance mapping indicator in each cell;
  • a determining module configured to determine a signal to noise ratio target value of the UE according to a target value of the at least one performance mapping indicator of the UE in each cell and a measured value of the corresponding performance mapping indicator
  • a power control module configured to perform outer loop power control on the UE according to the signal to noise ratio target value of the UE, so that the measured value of the at least one performance mapping indicator after the outer loop power control reaches a corresponding value The target value of the performance mapping indicator.
  • mapping module is specifically configured to:
  • the target value of the performance indicator of the control channel based on the decoding result is mapped to the target value of the missed detection probability of the control channel CCH reference measurement.
  • the determining module is specifically configured to:
  • the error rate of the pilot signal or the error rate of the reference signal is greater than a target value of the error rate of the pilot signal or the bit error rate of the reference signal, increase the signal to noise ratio target Or, if the measured value of the missed detection probability of the control channel reference measurement is greater than a target value of the missed detection probability of the control channel reference measurement, increasing the signal to noise ratio target value; or
  • the error rate of the pilot signal or the measured value of the reference signal error rate is smaller than a target value of the error rate of the pilot signal or the error rate of the reference signal, and the missed detection of the control channel reference measurement
  • the measured value of the probability is less than the target value of the missed detection probability of the control channel reference measurement, and the signal to noise ratio target value is decreased.
  • the determination module is also used to:
  • the determining module is specifically configured to:
  • the method further includes:
  • a sending module configured to: after determining, according to the target value of the at least one performance mapping indicator of the UE in each cell and the measured value of the corresponding performance mapping indicator, the performance of the sending control channel Restricted instructions.
  • the determining module is further configured to:
  • the UE transmits no data on the dedicated channel DCH or the enhanced dedicated channel E-DCH within a preset period.
  • the determining module is specifically configured to:
  • An embodiment of the present invention provides a base station, including:
  • the transmitter is configured to transmit data information or an indication message
  • the receiver is configured to receive a bit error rate of the pilot signal, a bit error rate of the reference signal, and a leakage of the control channel reference measurement Detecting a measurement value or other information of at least one performance mapping indicator in the probability
  • the memory storing an execution instruction, when the base station is running, the processor is in communication with the memory, and the processor performs the execution
  • the instructions cause the base station to perform the method as described in the first aspect, or the first to seventh implementations of the first aspect.
  • an embodiment of the present invention provides an outer loop power control device, including: a processor and a memory, the memory storing execution instructions, when the outer loop power control device is in operation, the processor is in communication with the memory, the processor executing the execution instruction to cause the outer loop power
  • the control device performs the method as described in the first aspect, or the first to seventh embodiments of the first aspect.
  • the present invention implements an exception loop power control method, apparatus, and device, by mapping a target value of a performance indicator of a control channel of a UE in each cell to a bit error rate of a pilot signal, a bit error rate of a reference signal, and a control channel reference measurement.
  • the target value of at least one performance mapping indicator is implemented, and the target value of the signal to noise ratio is controlled according to the performance of the control channel, and the accuracy of the target value of the control signal to noise ratio is improved, and the target value of the control signal to noise ratio is not solved in the prior art. The exact problem.
  • Embodiment 1 is a flowchart of Embodiment 1 of an outer loop power control method according to the present invention
  • Embodiment 1 is a schematic structural view of Embodiment 1 of an outer loop power control device according to the present invention
  • Embodiment 2 is a schematic structural diagram of Embodiment 2 of an outer loop power control device according to the present invention.
  • Embodiment 1 of a base station according to the present invention is a schematic structural diagram of Embodiment 1 of a base station according to the present invention.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of an outer loop power control device according to the present invention. detailed description
  • FIG. 1 is a flowchart of Embodiment 1 of an outer loop power control method according to the present invention.
  • the execution body of this embodiment may be an outer loop power control device, and the device may be implemented by software or by hardware, or may be implemented by software and hardware.
  • the device can be located in a base station or controller. As shown in FIG. 1, the method in this embodiment may include:
  • Step 101 Determine, according to a target value of each performance indicator of the control channel of the user equipment UE in each cell, a target value of the at least one performance mapping indicator of the UE in the each cell, where the performance mapping indicator includes: a bit error rate of the frequency signal, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement, wherein the missed detection probability of the control channel reference measurement is a channel quality indicator CQI or an enhanced dedicated physics within a statistical preset time
  • the ratio of the decoded signal power to the noise power of the control channel E-DPCCH is less than the probability that the number of missed detections of the set reference measurement threshold is the total number of times.
  • the performance indicators of the control channel CCH of the user equipment UE in each cell mainly include two parts: a performance index of demodulation and a performance index of decoding miss detection under a certain false alarm probability.
  • the uplink CCH performance indicators of WCDMA may include but are not limited to the following: error rate of pilot signal, Transmit Power Control (TPC) error rate, error rate of CQI of HS-DPCCH, error detection of ACK / Missing detection / false alarm probability, enhanced Depth Physical Control Channel (E-DPCCH), missed detection / false detection / false alarm probability.
  • TPC Transmit Power Control
  • E-DPCCH enhanced Depth Physical Control Channel
  • the uplink PUCCH performance indicators of LTE may include, but are not limited to, a bit error rate of a reference signal, a missed detection/error detection/false alarm probability of a PUCCH of a different format.
  • the performance index of the control channel such as the bit error rate and the TPC error rate of the pilot signal based on the demodulation hard signal can be respectively mapped to the error rate of the pilot signal, and the CQI error block can be used. Rate, ACK error detection/missing/false alarm probability, and E-DPCCH error detection/missing/false alarm probability, etc.
  • the performance indicators of the control channel based on the decoding result are respectively mapped to the missed detection probability of the control channel reference measurement. - In the indicator, for example, the mapping relationship between the indicators can be obtained by offline simulation.
  • 1% of the TPC error rate is mapped to the pilot signal with a bit error rate of %, and the bit error rate of the pilot signal is directly mapped.
  • the error rate to the pilot signal; the missed block rate of 1% CQI mapped to the control channel reference measurement is 8%, where A and B are, for example, 2 and 3. It should be noted that this is just an example. It should be noted that the embodiments of the present invention are not limited thereto.
  • the performance indicators of the respective control channels based on the demodulation hard decision may be respectively mapped to the error rate of the reference signal; the missed detection/error detection/false alarm probability of the PUCCH of different formats, etc.
  • the performance indicators of the control channel based on the decoding result are respectively mapped to the missed detection probability of the control channel reference measurement.
  • the mapping relationship between the indicators can be obtained by the offline simulation method, and the error rate of the reference signal is directly mapped to the error rate of the reference signal; the missed detection probability of the 1% PUCCH miss detection probability mapping to the control channel reference measurement is 8%, where A and B are, for example, 2 and 3. It should be noted that the description herein is merely illustrative, and the embodiment of the present invention is not limited thereto.
  • the missed detection probability of the control channel reference measurement may be a ratio of the signal power to the noise power after the RM maximum likelihood decoding of the statistical CQI or E-DPCCH, and if the ratio is less than the set reference measurement threshold, The reference measurement is missed, and the probability of missed detection can be obtained by counting the ratio of the number of missed detections in the set time to the total number of statistics.
  • the missed detection probability of the control channel reference measurement may be a ratio of the signal power to the noise power after the RM maximum likelihood decoding of the statistical CQI, and if the ratio is less than the set reference measurement threshold, the reference measurement is considered to be leaky.
  • the probability of missed detection can be obtained by checking the ratio of the number of missed tests in the set time to the total number of statistics.
  • the reference measurement threshold can be different for the above two systems.
  • the performance of the control channel of the UE in each cell and the error rate of the pilot signal, the error rate of the reference signal, and the mapping relationship between the missed detection probability indicators of the control channel reference measurement can be obtained, so that the UE can be used in each cell according to the UE.
  • the target value of the performance indicator of the control channel and the corresponding mapping relationship determine the error rate of the pilot signal, the error rate of the reference signal, and the target value of at least one performance mapping indicator of the missed detection probability indicator of the control channel reference measurement.
  • At least one performance map of a target value of a performance indicator of a control channel of each cell and a bit error rate of a pilot signal, a bit error rate of a reference signal, and a missed detection probability of a control channel reference measurement may be obtained by an offline simulation method.
  • the mapping relationship between the target values of the indicators may be obtained by an offline simulation method.
  • the target value of the 0.5% TPC error rate is mapped to the target value of the pilot signal of the pilot signal is 1%; 1%
  • the target value of the block error rate of the CQI is mapped to the target value of the missed detection probability of the control channel reference measurement is 2%, and the target value of the missed detection probability of the 0.5% PUCCH is mapped to the target value of the missed detection probability of the control channel reference measurement. It is 1%, and it should be noted that the embodiment is merely illustrative, and the embodiment of the present invention is not limited thereto.
  • Step 102 Obtain a measured value of at least one performance mapping indicator of a bit error rate of a pilot signal in each cell, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement.
  • Step 103 Determine, according to the target value of the at least one performance mapping indicator of the UE in each cell and the measured value of the corresponding performance mapping indicator obtained in step 102, the UE's letter is obtained. Noise ratio target value.
  • Step 104 Perform outer loop power control on the UE according to a target value of the signal to noise ratio of the UE, so that at least one of a bit error rate of the pilot signal, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement The measured value of the mapping indicator after the outer loop power control reaches the target value of the corresponding performance mapping indicator.
  • the target value is used for outer loop power control, which can ensure the performance of the control channel uplink, that is, the receiving quality reaches the set target value, and reduce the received signal to noise ratio of the control channel of the UE in each cell, reduce the UE transmit power, and reduce the uplink interference.
  • At least one performance mapping is performed by mapping a target value of a performance indicator of a control channel of the UE in each cell to a bit error rate of the pilot signal, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement.
  • a target value of the indicator obtaining a measured value of the at least one performance mapping indicator, and adjusting a signal to noise of the control channel according to a target value of the at least one performance mapping indicator and a measured value of the at least one performance mapping indicator
  • outer loop power control according to the target value of the signal to noise ratio, so that the measured value of the at least one performance mapping indicator after the outer loop power control reaches the target of the corresponding at least one performance mapping index
  • the target value of each performance indicator of the control channel of the user equipment UE in each cell Determining a target value of at least one performance mapping indicator of the UE in each cell: a bit error rate of the pilot signal, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement, including:
  • Mapping a target value of a performance indicator of the control channel based on the demodulation hard decision to a bit error rate of the pilot signal or a target value of the bit error rate of the reference signal; or, a target of a performance indicator of the control channel based on the decoding result The value is mapped to the target value of the missed detection probability of the control channel reference measurement.
  • the target value of the performance index of the control channel such as the error rate of the demodulation hard-coded pilot signal and the TPC error rate
  • the target values are respectively mapped to the target value of the index of the missed detection probability of the control channel reference measurement.
  • the mapping relationship between the target values of each index can be obtained by an off-line simulation method, such as a target value of a 0.5% TPC error rate.
  • the target value of the bit error rate mapped to the pilot signal is 1%, and the target value of the bit error rate of the pilot signal is directly mapped to the target value of the bit error rate of the pilot signal; the target of the block error rate of 1% CQI
  • the target value of the missed detection probability of the value mapped to the control channel reference measurement is 2%. It should be noted that the embodiment is merely illustrative, and the embodiment of the present invention is not limited thereto.
  • the target value of the performance indicator of each control channel based on the demodulation hard decision may also be mapped to the target value of the bit error rate of the reference signal respectively; the missed detection/error detection/false alarm of the PUCCH of different formats
  • the target value of the performance index of the control channel based on the decoding result is mapped to the target value of the missed detection probability of the control channel reference measurement, respectively.
  • the mapping relationship between the target values of each index can be obtained by the offline simulation method, and the target value of the error rate of the reference signal is directly mapped to the target value of the bit error rate of the reference signal; the target of the missed detection probability of the PUCCH of 0.5%
  • the target value of the missed detection probability of the value mapped to the control channel reference measurement is 1%.
  • the UE determines the signal to noise ratio target value of the UE. , including:
  • the measured value of the missed detection probability of the control channel reference measurement is greater than the target value of the missed detection probability of the control channel reference measurement, increasing the signal to noise ratio target value;
  • the error rate of the pilot signal or the error rate of the reference signal is less than the error rate of the pilot signal or the target value of the bit error rate of the reference signal, and the measured value of the missed detection probability of the control channel reference measurement is less than The target value of the missed detection probability of the control channel reference measurement reduces the signal to noise ratio target value.
  • the SNR target value may be adjusted, and the following method may be adopted:
  • the measured values of the missed detection probability of the rate and control channel reference measurements are respectively compared with the respective threshold values, that is, the target values, if the error rate value of the pilot signal is greater than the target value of the indicator or the missed detection probability of the control channel reference measurement
  • the value of the control is greater than the target value of the indicator, indicating that the performance of the control channel, that is, the uplink reception quality is poor, and the signal-to-noise ratio target value needs to be increased, that is, a length may be increased, and the length may be preset.
  • the value of the bit error rate of the pilot signal is less than the target of the indicator
  • the value of the missed detection probability of the control channel reference measurement is smaller than the target value of the indicator, indicating that the performance of the control channel, that is, the uplink reception quality is good, and the signal to noise ratio target value needs to be reduced, that is, the length of the signal can be reduced.
  • the signal-to-noise ratio target value is adjusted according to the error rate of the reference signal and the measured value and the target value of the missed detection probability of the control channel reference measurement, and the following manner may be adopted: the bit error rate of the reference signal and the control channel reference The measured value of the missed detection probability is compared with the respective threshold value, that is, the target value, if the error rate value of the reference signal is greater than the target value of the index or the value of the missed detection probability of the control channel reference measurement is greater than the target value
  • the target value indicates that the performance of the control channel, that is, the uplink reception quality is poor, and the signal-to-noise ratio target value needs to be increased, that is, a length may be increased, and the length may be preset; if the reference signal is The value of the error rate is less than the target value of the indicator and the value of the missed detection probability of the control channel reference measurement is smaller than the target value of the indicator, indicating that the performance of the control channel, that is, the uplink reception quality is good
  • the method in this embodiment may further include:
  • each performance indicator of the control channel can be obtained in various ways, for example: In the preset period, the probability of the E-DPCCH miss detection is obtained by controlling the RLC layer retransmission probability by the statistical radio link, according to The channel quality indicates that the CQI decision is unreliable, and the error rate of the CQI of the HS-DPCCH is obtained, and the ACK of the dedicated control channel HS-DPCCH is uplinked according to the user equipment UE, but the receiving end judges that the probability that the UE is not transmitted is ACK. It is to be noted that the detection probability and the like are merely examples, and the embodiment of the present invention is not limited thereto.
  • Adjusting the target value of at least one performance mapping indicator according to the measured value of each performance indicator of the control channel counted in the preset period which may be:
  • the target value of the at least one performance mapping indicator is decreased.
  • the measured value of the block error rate of the CQI is lower than the threshold of 2%, which may be reduced.
  • the mapping performance indicator with the mapping relationship of the indicator the target value of the missed detection probability of the control channel reference measurement; or
  • the target value of the at least one performance mapping indicator is increased. For example, if the measured value of the block error rate of the CQI is higher than the threshold of 3%, the The performance indicator has a mapping performance index of the mapping relationship: a target value of the missed detection probability of the control channel reference measurement.
  • the signal to noise ratio target value it may also include:
  • the indication that the control channel performance is limited is sent; or
  • the error rate of the pilot signal or the error rate of the reference signal is less than the error rate of the pilot signal or the target value of the bit error rate of the reference signal, and the measured value of the missed detection probability of the control channel reference measurement is less than
  • the target value of the missed detection probability of the control channel reference measurement transmits an indication that the control channel performance is not limited.
  • the performance of the control channel at this time is an indication that the uplink reception quality is poor, and the performance of the control channel is limited;
  • the performance of the control channel at this time is an indication that the uplink reception quality is good, and the performance of the control channel is not limited.
  • the target value of the signal to noise ratio of the UE is determined according to the target value of the at least one performance mapping indicator and the measured value of the at least one performance mapping indicator, if the measured value of the at least one performance mapping indicator is greater than the performance mapping indicator of the UE.
  • the target value of the performance mapping indicator reduces the target value of the signal to noise ratio, and can also adjust the target value of the performance mapping indicator according to the performance of the statistical control channel, thereby realizing the target value of the signal to noise ratio according to the performance of the control channel, and The accuracy of the target value of the control signal to noise ratio is improved, and the problem that the target value of the control signal to noise ratio is inaccurate in the prior art is solved.
  • the method further includes:
  • the UE has no data transmission on the dedicated channel DCH or the enhanced dedicated channel E-DCH within a preset period.
  • the non-soft handover UE has only one serving cell, and the Dedicated Channel (DCH) or the Enhanced Dedicated Channel (E-DCH) is within a preset period.
  • DCH Dedicated Channel
  • E-DCH Enhanced Dedicated Channel
  • the UE is determined according to the following steps.
  • the SNR target value is used for outer loop power control:
  • a target value of the at least one performance mapping indicator of the UE in the serving cell according to a target value of each performance indicator of a control channel of the UE in a serving cell of the DCH or the E-DCH, where the performance mapping indicator includes : a bit error rate of the pilot signal, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement, where the missed detection probability of the control channel reference measurement is a channel quality indicator CQI or enhanced in a statistical preset time
  • the ratio of the decoded signal power to the noise power of the dedicated physical control channel E-DPCCH is less than the total number of missed detections of the set reference measurement threshold;
  • the outer loop power control is performed on the UE according to the SNR target value of the UE, so that the measured value of the at least one performance mapping indicator after the outer loop power control reaches the target value of the corresponding performance mapping indicator.
  • the outer loop power control is performed by the method described in the method embodiments 1 and 2.
  • the DCH or E-DCH outer loop power control is performed according to the uplink reception quality of the DCH or E-DCH to adjust the signal to noise ratio target value. That is, switching from outer loop power control according to control channel performance to outer loop power control according to DCH or E-DCH quality.
  • the signal-to-noise ratio target value is adjusted only by the performance requirement of the CCH, which can effectively reduce the uplink transmit power of the CCH, reduce the uplink overhead, and increase the uplink capacity.
  • the DCH or E-DCH outer loop power control if an indication that the control channel performance of the serving cell is limited is obtained, the DCH or E-DCH outer loop power is obtained.
  • the control increases the signal to noise ratio target value, and the DCH or E-DCH outer loop power control cannot reduce the signal to noise ratio target value before receiving the indication that the next control channel performance of the serving cell is not limited.
  • determining, according to the target value of the at least one performance mapping indicator of the UE in each cell, and the measured value of the corresponding performance mapping indicator, determining a target value of the signal to noise ratio of the UE including:
  • Determining a target value of at least one performance mapping indicator and a corresponding performance mapping indicator according to a bit error rate of the pilot signal in each cell, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement Determining a signal to noise ratio target value of each of the cells;
  • Determining a signal to noise ratio target value of the UE according to a signal to noise ratio target value of each of the cells Specifically, for the non-soft handover UE, according to the error rate of the pilot signal in the serving cell, the error rate of the reference signal, and the target value of at least one performance mapping indicator of the control channel reference measurement missed detection probability. And determining, by the measured value of the corresponding performance mapping indicator, a signal to noise ratio target value of the serving cell;
  • the uplink receiving quality adjusts the signal-to-noise ratio target value for DCH or E-DCH outer loop power control, which can effectively reduce the CCH transmit power, reduce the uplink overhead, and increase the uplink capacity.
  • the method further includes:
  • the UE has no data transmission on the dedicated channel DCH or the enhanced dedicated channel E-DCH within a preset period.
  • the embodiment is directed to a soft handover UE, where the soft handover UE includes multiple DCH or E-DCH serving cells (a primary serving cell and a non-primary serving cell), and a Dedicated Channel (DCH) or an enhanced dedicated channel. (Enhanced Dedicated Channel, referred to as E-DCH)
  • the outer loop power control is performed according to the following steps:
  • the performance mapping indicator includes: a bit error rate of the pilot signal, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement, where the missed detection probability of the control channel reference measurement is a channel quality indicator within a statistical preset time
  • the ratio of the decoded signal power to the noise power of the CQI or the enhanced dedicated physical control channel E-DPCCH is less than the probability of the number of missed detections of the set reference measurement threshold.
  • the at least one serving cell may select one or more cells that have the best control channel performance, that is, the uplink receiving quality.
  • the outer loop power control is performed by the method described in the method embodiments 1 and 2.
  • the DCH or E-DCH outer loop power control is performed according to the uplink reception quality of the DCH or E-DCH to adjust the signal to noise ratio target value. That is, switching from outer loop power control according to control channel performance to outer loop power control according to DCH or E-DCH quality.
  • the signal-to-noise ratio target value is adjusted only by the performance requirement of the CCH, which can effectively reduce the uplink transmit power of the CCH, reduce the uplink overhead, and increase the uplink capacity.
  • the soft handover UE only the error rate of the pilot signal in the serving cell of the DCH or the E-DCH, the error rate of the reference signal, and the missed detection probability of the control channel reference measurement may be acquired.
  • the non-primary serving cell sends an indication of limited performance of the control channel, at this time, according to the error rate of the pilot signal of the primary serving cell, the error rate of the reference signal, and at least one of the missed detection probability of the control channel reference measurement.
  • the target value of the performance mapping indicator and the measured value of the corresponding performance mapping indicator are also determined to reduce the target value of the signal to noise ratio, thereby reducing the target value of the signal to noise ratio of the control channel of the primary serving cell, and reducing the right to Interference from the primary serving cell.
  • the DCH or the E-DCH outer loop power control if an indication that the control channel performance of the at least one serving cell is restricted is obtained, the DCH or the E-DCH The ring power control increases the signal to noise ratio target value, and the DCH or E-DCH outer loop power control cannot reduce the signal to noise ratio target value until an indication that the performance of the next control channel of at least one serving cell is not limited.
  • determining, according to the target value of the at least one performance mapping indicator of the UE in each cell, and the measured value of the corresponding performance mapping indicator, determining a target value of the signal to noise ratio of the UE including:
  • Determining a target value of at least one performance mapping indicator and a corresponding performance mapping indicator according to a bit error rate of the pilot signal in each cell, a bit error rate of the reference signal, and a missed detection probability of the control channel reference measurement Determining a signal to noise ratio target value of each of the cells; Determining a signal to noise ratio target value of the UE according to a signal to noise ratio target value of each of the cells.
  • the soft handover UE according to the error rate of the pilot signal in the at least one serving cell, the error rate of the reference signal, and the target of at least one performance mapping indicator of the missed detection probability of the control channel reference measurement. And a measured value of the corresponding performance mapping indicator determines a signal to noise ratio target value of the at least one serving cell;
  • the uplink receiving quality adjusts the signal-to-noise ratio target value for DCH or E-DCH outer loop power control, which can effectively reduce the CCH transmit power, reduce the uplink overhead, and increase the uplink capacity.
  • the outer loop power control device 20 of the present embodiment may be disposed in a base station or a controller, and may include: a mapping module 201, The obtaining module 202, the determining module 203, and the power control module 204, wherein the mapping module 201 is configured to determine, according to a target value of each performance indicator of the control channel of the user equipment UE in each cell, that the UE is in the at least one of the cells.
  • a target value of a performance mapping indicator where the performance mapping indicator includes: a bit error rate of a pilot signal, a bit error rate of a reference signal, and a missed detection probability of a control channel reference measurement, where the control channel reference measurement
  • the probability of missed detection is that the ratio of the decoded signal power to the noise power of the dedicated physical control channel E-DPCCH enhanced by the channel quality indicator CQ domain is less than the set reference measurement threshold.
  • the obtaining module 202 is configured to obtain at least one performance mapping indicator of the UE in each cell
  • the determining module 203 is configured to determine a signal to noise ratio target value of the UE according to a target value of the at least one performance mapping indicator of the UE in each cell and a measured value of the corresponding performance mapping indicator; the power control module 204 And performing outer loop power control on the UE according to the target value of the signal to noise ratio of the UE, so that the measured value of the at least one performance mapping indicator after the outer loop power control reaches the corresponding performance.
  • the target value of the mapping indicator is configured to obtain at least one performance mapping indicator of the UE in each cell
  • the determining module 203 is configured to determine a signal to noise ratio target value of the UE according to a target value of the at least one performance mapping indicator of the UE in each cell and a measured value of the corresponding performance mapping indicator; the power control module 204 And performing outer loop power control on the UE according to the target value of the signal to noise ratio of the UE
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 1.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • Embodiment 2 is a schematic structural diagram of Embodiment 2 of an outer loop power control device according to the present invention. As shown in FIG. 3, the device in this embodiment is further configured on the basis of the device structure shown in FIG. : Mapping a target value of a performance indicator of the control channel based on the demodulation hard decision to a bit error rate of the pilot signal or a target value of the bit error rate of the reference signal; or
  • the target value of the performance indicator of the control channel based on the decoding result is mapped to the target value of the missed detection probability of the control channel CCH reference measurement.
  • the determining module 203 is specifically configured to:
  • the error rate of the pilot signal or the error rate of the reference signal is greater than a target value of the error rate of the pilot signal or the bit error rate of the reference signal, increase the signal to noise ratio target Or, if the measured value of the missed detection probability of the control channel reference measurement is greater than a target value of the missed detection probability of the control channel reference measurement, increasing the signal to noise ratio target value; or
  • the error rate of the pilot signal or the measured value of the reference signal error rate is smaller than a target value of the error rate of the pilot signal or the error rate of the reference signal, and the missed detection of the control channel reference measurement
  • the measured value of the probability is less than the target value of the missed detection probability of the control channel reference measurement, and the signal to noise ratio target value is decreased.
  • the determining module 203 is further configured to:
  • the determining module 203 is specifically configured to:
  • the device in this embodiment may further include:
  • the sending module 205 is configured to: after determining the signal to noise ratio target value of the UE according to the target value of the at least one performance mapping indicator of the UE in each cell and the measured value of the corresponding performance mapping indicator, send the performance of the control channel Whether the indication is limited.
  • the determining module 203 is further configured to:
  • the UE Before the method of the method embodiments 1 and 2 is performed, it is determined that the UE has no data transmission on the dedicated channel DCH or the enhanced dedicated channel E-DCH within a preset period.
  • the determining module 203 is specifically configured to:
  • the device in this embodiment may be used to implement the technical solutions in the second and third embodiments of the method, and the implementation principles and technical effects are similar, and details are not described herein again.
  • FIG. 4 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention.
  • the base station 40 provided in this embodiment includes a transmitter 401, a receiver 402, a processor 403, and a memory 404.
  • the transmitter is configured to send data information or an indication message
  • the receiver is configured to receive a error rate of the pilot signal, a bit error rate of the reference signal, and a measurement of at least one performance mapping indicator of the missed detection probability of the control channel reference measurement.
  • Value or other information the memory storing execution instructions, when the base station is running, the processor is in communication with the memory, and the processor executing the execution instruction causes the base station to perform the following method:
  • the performance mapping indicator includes: a pilot signal The bit error rate, the bit error rate of the reference signal, and the missed detection probability of the control channel reference measurement; wherein the missed detection probability of the control channel reference measurement is a channel quality indicator CQI or an enhanced dedicated physical control channel in a statistical preset time
  • the ratio of the decoded signal power to the noise power of the E-DPCCH is less than the probability that the number of missed detections of the set reference measurement threshold is the total number of times;
  • the base station of this embodiment may be used to implement the technical solution of any method embodiment, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of an outer loop power control device according to the present invention.
  • the outer loop power control device 50 provided in this embodiment includes a processor 501 and a memory 502.
  • the outer loop power control device 50 may also include a transmitter 503 and a receiver 504. Transmitter 503 and receiver 504 can be coupled to processor 501.
  • the transmitter 503 is configured to transmit data or information
  • the receiver 504 is configured to receive data or information
  • the memory 502 stores execution instructions.
  • the processor 501 communicates with the memory 502. 501
  • the execution instruction in the memory 502 is used to execute the technical solution described in any one of the first to fourth embodiments of the method, and the implementation principle and the technical effect are similar. I will not repeat them here.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are only schematic.
  • the division of the unit or module is only a logical function division.
  • there may be another division manner for example, multiple units or modules may be used. Combined or can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be in electrical, mechanical or other form.
  • the modules described as separate components may or may not be physically separate.
  • the components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

提供一种外环功率控制方法、装置和设备。外环功率控制方法，包括：根据用户设备UE在各个小区中的控制信道的各个性能指标的目标值确定UE至少一种性能映射指标的目标值，性能映射指标包括：导频信号的误码率，参考信号的误码率，控制信道参考测量的漏检概率；获取UE至少一种性能映射指标的测量值；根据UE至少一种性能映射指标的目标值和对应的性能映射指标的测量值确定UE的信噪比目标值；根据UE的信噪比目标值对UE进行外环功率控制，以使得至少一种性能映射指标经过外环功率控制后的测量值达到对应的性能映射指标的目标值。实现了根据CCH质量控制信噪比目标值，并提高了控制信噪比目标值准确性。

Description

外环功率控制方法、 装置和设备
技术领域
本发明实施例涉及通信技术领域， 尤其涉及一种外环功率控制方法、 装 置和设备。 背景技术
在宽带码多分址 （Wideband Code Division Multiple Access , 简称 WCDMA)系统中，用户设备 UE在进行突发业务时，虽然数据激活概率较低， 但是其上行的控制信道，例如： 专用物理控制信道（Dedicated Physical Control Channel , 简称 DPCCH ) 和高速专用物理控制信道 （High Speed Dedicated Physical Control Channel ， 简称 HS- DPCCH) ， 需要固定反馈， 导致智能终 端的上行方向的控制信道占了上行较大的功率开销。
长期演进 （Long Term Evolution, 简称 LTE) 系统中， 上行的控制信道， 例如： 物理上行控制信道 （Physical Uplink Control Channel, 简称 PUCCH) ， 承载着下行控制信道如物理下行控制信道 （Physical Downlink Control Channel,简称 PDCCH)的信道质量指示（Channel Quality Indicator,简称 CQI) 信息的反馈， 基站 eNodeB根据用户设备 UE反馈回的 CQI信息,对资源进行调 度， 为了获得较优的下行调度性能， UE需要频繁反馈 CQI信息， 因此 UE需要 较高的发送功率， 这样会增加信息的功耗， 而且导致基站的 PUCCH上接收电 平较高， 对邻区会造成干扰。
现有技术中通过设置信噪比目标值 （即最小的信噪比） ， 控制上行的控 制信道的质量。 现有技术中存在的问题是， 通过信噪比大于设定的信噪比目 标值的方法控制 UE发送功率， 信噪比目标值在不同信道条件下差距很大， 由 于很难进行准确的信道识别， 因而无法准确的设置信噪比目标值， 从而准确 控制上行控制信道的质量。 且需要根据最恶劣的信道条件设置较高的信噪比 目标值， 造成 UE发送功率浪费， 同时基站接收的信噪比偏高， 造成邻区干扰 增加。 发明内容
本发明实施例提供一种外环功率控制方法、 装置和设备， 以克服现有技 术中控制信噪比目标值不准确的问题。
第一方面， 本发明实施例提供一种外环功率控制方法， 包括：
根据用户设备 UE在各个小区中的控制信道的各个性能指标的目标值确定 所述 UE在所述各个小区中至少一种性能映射指标的目标值， 其中， 所述性能 映射指标包括： 导频信号的误码率， 参考信号的误码率， 控制信道参考测量 的漏检概率； 其中， 所述控制信道参考测量的漏检概率为统计预设时间内信 道质量指示 CQI或增强的专用物理控制信道 E-DPCCH的译码后的信号功率与 噪声功率的比值小于设定的参考测量门限的漏检次数占总次数的概率；
获取所述 UE在各个小区中至少一种性能映射指标的测量值；
根据所述 UE在各个小区中至少一种性能映射指标的目标值和对应的性能 映射指标的测量值确定所述 UE的信噪比目标值；
根据所述 UE的信噪比目标值对所述 UE进行外环功率控制， 以使得所述至 少一种性能映射指标经过所述外环功率控制后的测量值达到对应的所述性能 映射指标的目标值。
结合第一方面， 在第一方面的第一种实现方式中， 所述根据用户设备 UE 在各个小区中的控制信道的各个性能指标的目标值确定所述 UE在所述各个小 区中至少一种性能映射指标的目标值， 包括：
将基于解调硬判的控制信道的性能指标的目标值映射到导频信号的误码 率或参考信号的误码率的目标值； 或者，
将基于译码结果的控制信道的性能指标的目标值映射到控制信道 CCH参 考测量的漏检概率的目标值。
结合第一方面、 或第一方面的第一种实现方式， 在第一方面的第二种实 现方式中， 所述根据所述 UE在各个小区中至少一种性能映射指标的目标值和 对应的性能映射指标的测量值确定所述 UE的信噪比目标值， 包括：
若所述导频信号的误码率或参考信号的误码率的测量值大于所述导频信 号的误码率或参考信号的误码率的目标值， 则增大所述信噪比目标值； 或者， 若所述控制信道参考测量的漏检概率的测量值大于所述控制信道参考测 量的漏检概率的目标值， 则增大所述信噪比目标值； 或者， 若所述导频信号的误码率或参考信号误码率的测量值小于所述导频信号 的误码率或参考信号的误码率的目标值， 且所述控制信道参考测量的漏检概 率的测量值小于所述控制信道参考测量的漏检概率的目标值， 则减小所述信 噪比目标值。
结合第一方面的第二种实现方式， 在第一方面的第三种实现方式中， 还 包括：
根据预设周期内统计的控制信道的各个性能指标的测量值， 调整所述至 少一种性能映射指标的目标值。
结合第一方面的第三种实现方式， 在第一方面的第四种实现方式中， 所 述根据预设周期内统计的控制信道的各个性能指标的测量值， 调整所述至少 一种性能映射指标的目标值， 包括：
若至少一个所述控制信道的性能指标的测量值低于第一阈值则减小所述 至少一种性能映射指标的目标值； 或者，
若至少一个所述控制信道的性能指标的测量值高于第二阈值则增大所述 至少一种性能映射指标的目标值。
结合第一方面、 或第一方面的第一〜第四任一种实现方式， 在第一方面的 第五种实现方式中， 所述根据所述 UE在各个小区中至少一种性能映射指标的 目标值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值之后， 还 包括：
发送控制信道的性能是否受限的指示。
结合第一方面、 或第一方面的第一〜第五任一种实现方式， 在第一方面的 第六种实现方式中， 所述方法执行之前， 还包括：
确定所述 UE在预设周期内在专用信道 DCH或增强专用信道 E-DCH上无 数据发送。
结合第一方面、 或第一方面的第一〜第六任一种实现方式， 在第一方面的 第七种实现方式中， 所述根据所述 UE在各个小区中至少一种性能映射指标的 目标值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值， 包括： 根据所述 UE在各个小区中至少一种性能映射指标的目标值和对应的性能 映射指标的测量值确定所述各个小区的信噪比目标值；
根据所述各个小区的信噪比目标值确定所述 UE的信噪比目标值。
第二方面， 本发明实施例提供一种外环功率控制装置， 包括： 映射模块， 用于根据用户设备 UE在各个小区中的控制信道的各个性能指 标的目标值确定所述 UE在所述各个小区中至少一种性能映射指标的目标值， 其中， 所述性能映射指标包括： 导频信号的误码率， 参考信号的误码率， 控 制信道参考测量的漏检概率， 其中， 所述控制信道参考测量的漏检概率为统 计预设时间内信道质量指示 CQI或增强的专用物理控制信道 E-DPCCH的译码 后的信号功率与噪声功率的比值小于设定的参考测量门限的漏检次数占总次 数的概率；
获取模块， 用于获取所述 UE在各个小区中至少一种性能映射指标的测量 值；
确定模块， 用于根据所述 UE在各个小区中至少一种性能映射指标的目标 值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值；
功率控制模块，用于根据所述 UE的信噪比目标值对所述 UE进行外环功率 控制， 以使得所述至少一种性能映射指标经过所述外环功率控制后的测量值 达到对应的所述性能映射指标的目标值。
结合第二方面， 在第二方面的第一种实现方式中， 所述映射模块， 具体 用于：
将基于解调硬判的控制信道的性能指标的目标值映射到导频信号的误码 率或参考信号的误码率的目标值； 或者，
将基于译码结果的控制信道的性能指标的目标值映射到控制信道 CCH参 考测量的漏检概率的目标值。
结合第二方面、 或第二方面的第一种实现方式， 在第二方面的第二种实 现方式中， 所述确定模块， 具体用于：
若所述导频信号的误码率或参考信号的误码率的测量值大于所述导频信 号的误码率或参考信号的误码率的目标值， 则增大所述信噪比目标值； 或者， 若所述控制信道参考测量的漏检概率的测量值大于所述控制信道参考测 量的漏检概率的目标值， 则增大所述信噪比目标值； 或者，
若所述导频信号的误码率或参考信号误码率的测量值小于所述导频信号 的误码率或参考信号的误码率的目标值， 且所述控制信道参考测量的漏检概 率的测量值小于所述控制信道参考测量的漏检概率的目标值， 则减小所述信 噪比目标值。
结合第二方面的第二种实现方式， 在第二方面的第三种实现方式中， 所 述确定模块， 还用于：
根据预设周期内统计的控制信道的各个性能指标的测量值， 调整所述至 少一种性能映射指标的目标值。
结合第二方面的第三种实现方式， 在第二方面的第四种实现方式中， 所 述确定模块， 具体用于：
若至少一个所述控制信道的性能指标的测量值低于第一阈值则减小所述 至少一种性能映射指标的目标值； 或者，
若至少一个所述控制信道的性能指标的测量值高于第二阈值则增大所述 至少一种性能映射指标的目标值。
结合第二方面、 或第二方面的第一〜第四任一种实现方式， 在第二方面的 第五种实现方式中， 还包括：
发送模块， 用于在根据所述 UE在各个小区中至少一种性能映射指标的目 标值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值之后， 发送 控制信道的性能是否受限的指示。
结合第二方面、 或第二方面的第一〜第五任一种实现方式， 在第二方面的 第六种实现方式中， 所述确定模块还用于：
确定所述 UE在预设周期内在专用信道 DCH或增强专用信道 E-DCH上无 数据发送。
结合第二方面、 或第二方面的第一〜第六任一种实现方式， 在第二方面的 第七种实现方式中， 所述确定模块， 具体用于：
根据所述 UE在各个小区中至少一种性能映射指标的目标值和对应的性能 映射指标的测量值确定所述各个小区的信噪比目标值；
根据所述各个小区的信噪比目标值确定所述 UE的信噪比目标值。
第三方面。 本发明实施例提供一种基站， 包括：
发射器、 接收器、 处理器和存储器； 其中， 所述发射器用于发送数据信 息或指示消息， 接收器用于接收导频信号的误码率， 参考信号的误码率， 控 制信道参考测量的漏检概率中至少一种性能映射指标的测量值或其他信息， 所述存储器存储执行指令， 当所述基站运行时， 所述处理器与所述存储器之 间通信， 所述处理器执行所述执行指令使得所述基站执行如第一方面、 或第 一方面的第一〜第七任一种实现方式中所述的方法。
第四方面， 本发明实施例提供一种外环功率控制设备， 包括： 处理器和存储器， 所述存储器存储执行指令， 当所述外环功率控制设备 运行时， 所述处理器与所述存储器之间通信， 所述处理器执行所述执行指令 使得所述外环功率控制设备执行如第一方面、 或第一方面的第一〜第七任一种 实现方式中所述的方法。
本发明实施例外环功率控制方法、 装置和设备， 通过将 UE在各个小区中 控制信道的性能指标的目标值映射到导频信号的误码率、 参考信号的误码率 和控制信道参考测量的漏检概率中至少一种性能映射指标的目标值， 获取所 述至少一种性能映射指标的测量值， 根据所述至少一种性能映射指标的目标 值和所述至少一种性能映射指标的测量值调整所述控制信道的信噪比目标 值； 根据所述信噪比目标值进行外环功率控制， 以使得所述至少一种性能映 射指标经过外环功率控制后的测量值达到对应的所述至少一种性能映射指标 的目标值， 实现了根据控制信道的性能控制信噪比目标值， 并提高了控制信 噪比目标值准确性， 解决了现有技术中控制信噪比目标值不准确的问题。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍， 显而易见地， 下 面描述中的附图是本发明的一些实施例， 对于本领域普通技术人员来讲， 在 不付出创造性劳动性的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明外环功率控制方法实施例一的流程图；
图 2为本发明外环功率控制装置实施例一的结构示意图；
图 3为本发明外环功率控制装置实施例二的结构示意图；
图 4为本发明基站实施例一的结构示意图；
图 5为本发明外环功率控制设备实施例一的结构示意图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发 明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描述， 显然， 所描述的实施例是本发明一部分实施例， 而不是全部的实施例。 基于 本发明中的实施例， 本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例， 都属于本发明保护的范围。
图 1为本发明外环功率控制方法实施例一的流程图。 本实施例的执行主体 可以为外环功率控制装置， 该装置可以通过软件实现， 也可以通过硬件实现， 还可以通过软件和硬件结合实现。 该装置可以位于基站或者控制器中。 如图 1 所示， 本实施例的方法可以包括：
歩骤 101、根据用户设备 UE在各个小区中的控制信道的各个性能指标的目 标值确定所述 UE在所述各个小区中至少一种性能映射指标的目标值， 其中， 性能映射指标包括： 导频信号的误码率， 参考信号的误码率， 控制信道参考 测量的漏检概率， 其中， 所述控制信道参考测量的漏检概率为统计预设时间 内信道质量指示 CQI或增强的专用物理控制信道 E-DPCCH的译码后的信号功 率与噪声功率的比值小于设定的参考测量门限的漏检次数占总次数的概率。
具体地， 用户设备 UE在各个小区中的控制信道 CCH的性能指标主要包括 解调的性能指标和在一定虚警概率下的译码漏检的性能指标两个部分。
WCDMA的上行 CCH性能指标可以包括但不限于以下： 导频信号的误码 率， 发射功率控制 （Transmit Power Control, 简称 TPC)误码率， HS-DPCCH 的 CQI的误块率， ACK的错检 /漏检 /虚警概率， 增强的专用物理控制信道 (Enhanced Dedicated Physical Control Channel, 简称 E-DPCCH)的漏检 /错检 /虚警概率等。
LTE的上行 PUCCH性能指标可以包括但不限于： 参考信号的误码率， 不 同格式的 PUCCH的漏检 /错检 /虚警概率等。
在 WCDMA系统中， 可以将基于解调硬判的导频信号的误码率、 TPC误码 率等控制信道的性能指标分别映射到导频信号的误码率这一指标，将 CQI的误 块率、 ACK的错检 /漏检 /虚警概率以及 E-DPCCH的错检 /漏检 /虚警概率等基于 译码结果的控制信道的性能指标分别映射到控制信道参考测量的漏检概率这 —指标上， 例如， 可以通过离线仿真的方法得到各个指标间的映射关系， 比 如 1%的 TPC误码率映射到导频信号的误码率为入％，导频信号的误码率直接映 射到导频信号的误码率； 1%的 CQI的误块率映射到控制信道参考测量的漏检 概率为8%， 这里的 A和 B例如是 2和 3， 需要说明的是， 这里只是举例说明， 本 发明实施例并不限于此。
类似地，在 LTE系统中， 也可以基于解调硬判的各个控制信道的性能指标 分别映射到参考信号的误码率;将不同格式的 PUCCH的漏检 /错检 /虚警概率等 基于译码结果的控制信道的性能指标分别映射到控制信道参考测量的漏检概 率。 例如： 可以通过离线仿真的方法得到各个指标间映射关系， 参考信号的 误码率直接映射到参考信号的误码率； 1%的 PUCCH的漏检概率映射到控制信 道参考测量的漏检概率为8%， 这里的 A和 B例如是 2和 3， 需要说明的是， 这里 只是举例说明， 本发明实施例并不限于此。
在 WCDMA系统中， 控制信道参考测量的漏检概率可以是统计 CQI或 E-DPCCH的 RM最大似然译码后的信号功率与噪声功率的比值，如果该比值小 于设定的参考测量门限， 认为该参考测量漏检， 统计设定时间内的漏检次数 占总统计次数的比值就可以得到漏检概率。
在 LTE系统中， 控制信道参考测量的漏检概率可以是统计 CQI的 RM最大 似然译码后的信号功率与噪声功率的比值， 如果该比值小于设定的参考测量 门限， 认为该参考测量漏检， 统计设定时间内的漏检次数占总统计次数的比 值就可以得到漏检概率。
参考测量门限对于上述两种系统的取值可以不同。
由于可以得到 UE在各个小区的控制信道的性能指标与导频信号的误码 率， 参考信号的误码率， 控制信道参考测量的漏检概率指标间的映射关系， 因此可以根据 UE在各个小区的控制信道的性能指标的目标值以及相应的映射 关系确定导频信号的误码率， 参考信号的误码率， 控制信道参考测量的漏检 概率指标中至少一种性能映射指标的目标值。
例如， 可以通过离线仿真的方法得到各个小区的控制信道的性能指标的 目标值与导频信号的误码率， 参考信号的误码率， 控制信道参考测量的漏检 概率中至少一种性能映射指标的目标值之间的映射关系。 各个性能指标的目 标值与上述至少一种性能映射指标的目标值的对应关系， 比如 0.5%的 TPC误 码率的目标值映射到导频信号的误码率的目标值为 1%; 1%的 CQI的误块率的 目标值映射到控制信道参考测量的漏检概率的目标值为 2%， 0.5%的 PUCCH的 漏检概率的目标值映射到控制信道参考测量的漏检概率的目标值为 1%， 需要 说明的是， 这里只是举例说明， 本发明实施例并不限于此。
歩骤 102、 获取 UE在各个小区中导频信号的误码率， 参考信号的误码率， 控制信道参考测量的漏检概率中至少一种性能映射指标的测量值。
歩骤 103、 根据歩骤 101中获取到的 UE在各个小区中至少一种性能映射指 标的目标值和歩骤 102中获取到的对应的性能映射指标的测量值确定 UE的信 噪比目标值。
歩骤 104、 根据 UE的信噪比目标值对 UE进行外环功率控制， 以使得导频 信号的误码率， 参考信号的误码率， 控制信道参考测量的漏检概率中至少一 种性能映射指标经过外环功率控制后的测量值达到对应的性能映射指标的目 标值。
具体地， 获取上述至少一种性能映射指标的测量值， 与各性能映射指标 的目标值进行比较， 调整 UE在各个小区中的控制信道的信噪比目标值， 并根 据调整后的信噪比目标值进行外环功率控制， 可以在保证控制信道上行的性 能即接收质量达到设定的目标值， 同时降低 UE在各个小区中的控制信道的接 收信噪比， 降低 UE发送功率， 减少上行干扰。
本实施例， 通过将 UE在各个小区中控制信道的性能指标的目标值映射到 导频信号的误码率、 参考信号的误码率和控制信道参考测量的漏检概率中至 少一种性能映射指标的目标值， 获取所述至少一种性能映射指标的测量值， 根据所述至少一种性能映射指标的目标值和所述至少一种性能映射指标的测 量值调整所述控制信道的信噪比目标值； 根据所述信噪比目标值进行外环功 率控制， 以使得所述至少一种性能映射指标经过外环功率控制后的测量值达 到对应的所述至少一种性能映射指标的目标值， 实现了根据控制信道的性能 控制信噪比目标值， 并提高了控制信噪比目标值准确性， 解决了现有技术中 控制信噪比目标值不准确的问题。
在本发明外环功率控制方法实施例二中， 在图 1所示实施例的方法基础 上， 本实施例的方法中， 根据用户设备 UE在各个小区中的控制信道的各个性 能指标的目标值确定 UE在各个小区中以下至少一种性能映射指标的目标值： 导频信号的误码率， 参考信号的误码率， 控制信道参考测量的漏检概率， 包 括：
将基于解调硬判的控制信道的性能指标的目标值映射到导频信号的误码 率或参考信号的误码率的目标值； 或者， 将基于译码结果的控制信道的性能 指标的目标值映射到控制信道参考测量的漏检概率的目标值。
具体地， 在 WCDMA系统中， 可以将基于解调硬判的导频信号的误码率、 TPC误码率等控制信道的性能指标的目标值分别映射到导频信号的误码率这 一指标的目标值上， 将 CQI的误块率、 ACK的错检 /漏检 /虚警概率以及 E-DPCCH的错检 /漏检 /虚警概率等基于译码结果的控制信道的性能指标的目 标值分别映射到控制信道参考测量的漏检概率这一指标的目标值上， 例如， 可以通过离线仿真的方法得到各个指标目标值间的映射关系， 比如 0.5%的 TPC误码率的目标值映射到导频信号的误码率的目标值为 1%， 导频信号的误 码率的目标值直接映射到导频信号的误码率的目标值； 1%的 CQI的误块率的 目标值映射到控制信道参考测量的漏检概率的目标值为 2%， 需要说明的是， 这里只是举例说明， 本发明实施例并不限于此。
在 LTE系统中，也可以将基于解调硬判的各个控制信道的性能指标的目标 值分别映射到参考信号的误码率的目标值；将不同格式的 PUCCH的漏检 /错检 /虚警概率等基于译码结果的控制信道的性能指标的目标值分别映射到控制信 道参考测量的漏检概率的目标值。 例如， 可以通过离线仿真的方法得到各个 指标目标值间的映射关系， 参考信号的误码率的目标值直接映射到参考信号 的误码率的目标值； 0.5%的 PUCCH的漏检概率的目标值映射到控制信道参考 测量的漏检概率的目标值为 1%， 需要说明的是， 这里只是举例说明， 本发明 实施例并不限于此。
可选地，根据歩骤 101中获取到的 UE在各个小区中至少一种性能映射指标 的目标值和歩骤 102中获取到的对应的性能映射指标的测量值确定 UE的信噪 比目标值， 包括：
若导频信号的误码率或参考信号的误码率的测量值大于导频信号的误码 率或参考信号的误码率的目标值， 则增大信噪比目标值； 或者，
若控制信道参考测量的漏检概率的测量值大于控制信道参考测量的漏检 概率的目标值， 则增大信噪比目标值； 或者，
若导频信号的误码率或参考信号的误码率的值测量小于导频信号的误码 率或参考信号的误码率的目标值， 且控制信道参考测量的漏检概率的测量值 小于控制信道参考测量的漏检概率的目标值， 则减小信噪比目标值。
具体地， 在 WCDMA系统中， 根据导频信号的误码率和控制信道参考测 量的漏检概率的测量值和目标值调整信噪比目标值， 可以采用如下方式： 将 导频信号的误码率和控制信道参考测量的漏检概率的测量值分别与各自的门 限值即目标值进行比较， 若导频信号的误码率值大于该指标的目标值或者控 制信道参考测量的漏检概率的值大于该指标的目标值， 说明此时控制信道的 性能即上行接收质量较差， 则需要增大信噪比目标值， 即可以增加一个歩长， 所述歩长可以是预先设定好的； 若导频信号的误码率的值小于该指标的目标 值且控制信道参考测量的漏检概率的值小于该指标的目标值， 说明此时控制 信道的性能即上行接收质量较好， 则需要减小信噪比目标值， 即可以减小一 个歩长。
在 LTE系统中，根据参考信号的误码率和控制信道参考测量的漏检概率的 测量值和目标值调整信噪比目标值， 可以采用如下方式： 将参考信号的误码 率和控制信道参考测量的漏检概率的测量值分别与各自的门限值即目标值进 行比较， 若参考信号的误码率值大于该指标的目标值或者控制信道参考测量 的漏检概率的值大于该指标的目标值， 说明此时控制信道的性能即上行接收 质量较差， 则需要增大信噪比目标值， 即可以增加一个歩长， 所述歩长可以 是预先设定好的； 若参考信号的误码率的值小于该指标的目标值且控制信道 参考测量的漏检概率的值小于该指标的目标值， 说明此时控制信道的性能即 上行接收质量较好， 则需要减小信噪比目标值， 即可以减小一个歩长。
可选地， 本实施例的方法， 还可以包括：
根据预设周期内统计的控制信道的各个性能指标的测量值， 调整至少一 种性能映射指标的目标值； 其中， 性能映射指标包括： 导频信号的误码率， 参考信号的误码率， 控制信道参考测量的漏检概率； 控制信道的各个性能指 标可以通过多种方式获得， 例如： 在预设周期内， 通过统计无线链路控制 RLC 层重传概率得到 E-DPCCH漏检概率， 根据信道质量指示 CQI判决为不可靠的 概率得到 HS-DPCCH的 CQI的误块率、 根据用户设备 UE上行发送专用控制信 道 HS-DPCCH的 ACK, 但是接收端判为 UE未发送的概率得到 ACK的漏检概率 等， 需要说明的是这里均只是举例， 本发明实施例并不限于此。
根据预设周期内统计的控制信道的各个性能指标的测量值， 调整至少一 种性能映射指标的目标值， 可以是：
若至少一个控制信道的性能指标的测量值低于第一阈值则减小至少一种 性能映射指标的目标值， 例如， CQI的误块率的测量值低于阈值 2%， 可以减 少与该性能指标具有映射关系的映射性能指标： 控制信道参考测量的漏检概 率的目标值； 或者，
若至少一个控制信道的性能指标的测量值高于第二阈值则增大至少一种 性能映射指标的目标值， 例如， CQI的误块率的测量值高于阈值 3%， 则可以 增大与该性能指标具有映射关系的映射性能指标： 控制信道参考测量的漏检 概率的目标值。 可选地， 根据导频信号的误码率， 参考信号的误码率， 控制信道参考测 量的漏检概率中至少一种性能映射指标的目标值和对应的性能映射指标的测 量值确定 UE的信噪比目标值之后， 还可以包括：
发送控制信道的性能是否受限的指示。
例如， 若导频信号的误码率或参考信号的误码率的测量值大于导频信号 的误码率或参考信号的误码率的目标值， 或者控制信道参考测量的漏检概率 的测量值大于控制信道参考测量的漏检概率的目标值， 则发送控制信道性能 受限的指示； 或者，
若导频信号的误码率或参考信号的误码率的测量值小于导频信号的误码 率或参考信号的误码率的目标值， 且控制信道参考测量的漏检概率的测量值 小于控制信道参考测量的漏检概率的目标值， 则发送控制信道性能不受限的 指示。
又例如， 若增大信噪比目标值， 则说明此时控制信道的性能即上行接收 质量较差， 发送控制信道性能受限的指示； 或者，
若减小信噪比目标值， 则说明此时控制信道的性能即上行接收质量较好， 发送控制信道性能不受限的指示。
本实施例， 通过根据至少一种性能映射指标的目标值和至少一种性能映 射指标的测量值确定 UE的信噪比目标值， 若至少一种性能映射指标的测量值 大于各自性能映射指标的目标值， 增大信噪比目标值； 若导频信号的误码率 或参考信号的误码率的测量值小于各自性能映射指标的目标值且控制信道参 考测量的漏检概率的测量值小于该性能映射指标的目标值， 减小信噪比目标 值， 还可以根据统计的控制信道的性能， 调整上述性能映射指标的目标值， 实现了根据控制信道的性能控制信噪比目标值， 并提高了控制信噪比目标值 准确性， 解决了现有技术中控制信噪比目标值不准确的问题。
在本发明外环功率控制方法实施例三中， 在方法实施例一、 二的基础上， 本实施例的方法执行之前， 还包括：
确定 UE在预设周期内在专用信道 DCH或增强专用信道 E-DCH上无数据 发送。
具体地， 本实施例针对非软切换 UE， 非软切换 UE只有一个服务小区， 在 专用信道（Dedicated Channel,简称 DCH)或增强专用信道（Enhanced Dedicated Channel, 简称 E-DCH)在预设周期内不发送数据时， 则根据如下歩骤确定 UE 的信噪比目标值进行外环功率控制：
根据 UE在 DCH或 E-DCH的服务小区中的控制信道的各个性能指标的目 标值确定所述 UE在所述服务小区中至少一种性能映射指标的目标值， 其中， 所述性能映射指标包括： 导频信号的误码率， 参考信号的误码率， 控制信道 参考测量的漏检概率， 其中， 所述控制信道参考测量的漏检概率为统计预设 时间内信道质量指示 CQI或增强的专用物理控制信道 E-DPCCH的译码后的信 号功率与噪声功率的比值小于设定的参考测量门限的漏检次数占总次数的概 -；
获取所述 UE在所述服务小区中的导频信号的误码率，参考信号的误码率， 控制信道参考测量的漏检概率中至少一种性能映射指标的测量值；
根据所述 UE在所述服务小区中上述至少一种性能映射指标的目标值和对 应的性能映射指标的测量值确定所述 UE的信噪比目标值；
根据所述 UE的信噪比目标值对所述 UE进行外环功率控制， 以使得上述至 少一种性能映射指标经过所述外环功率控制后的测量值达到对应的性能映射 指标的目标值。
即采用方法实施例一、 二中描述的方法进行外环功率控制。
在第一次收到 DCH或 E-DCH上的数据后， 根据 DCH或 E-DCH的上行接收 质量调整信噪比目标值进行 DCH或 E-DCH外环功率控制。 即从根据控制信道 性能的外环功率控制切换到根据 DCH或 E-DCH质量的外环功率控制。 在只有 CCH期间， 仅利用 CCH的性能要求调整信噪比目标值， 能有效降低 CCH的上 行发送功率， 减小上行开销， 增加上行容量。
可选地， 本实施例的方法， 在所述 DCH或 E-DCH外环功率控制期间， 如 果获取到服务小区发送的控制信道性能受限的指示， 则所述 DCH或 E-DCH外 环功率控制增加信噪比目标值， 且在收到服务小区的下一个控制信道性能不 受限的指示前， DCH或 E-DCH外环功率控制不能降低信噪比目标值。
可选地， 根据所述 UE在各个小区中至少一种性能映射指标的目标值和对 应的性能映射指标的测量值确定所述 UE的信噪比目标值， 包括：
根据所述 UE在各个小区中导频信号的误码率， 参考信号的误码率， 控制 信道参考测量的漏检概率中至少一种性能映射指标的目标值和对应的性能映 射指标的测量值确定所述各个小区的信噪比目标值；
根据所述各个小区的信噪比目标值确定所述 UE的信噪比目标值。 具体地，对于非软切换 UE，根据所述 UE在服务小区中导频信号的误码率， 参考信号的误码率， 控制信道参考测量的漏检概率中至少一种性能映射指标 的目标值和对应的性能映射指标的测量值确定所述服务小区的信噪比目标 值；
根据所述服务小区的信噪比目标值确定所述 UE的信噪比目标值。
本实施例， 通过在只有控制信道的数据期间， 仅利用控制信道的性能调 整信噪比目标值， 在第一次收到所述 DCH或 E-DCH上的数据后， 根据 DCH或 E-DCH的上行接收质量调整信噪比目标值进行 DCH或 E-DCH外环功率控制， 能有效降低 CCH的发射功率， 减小上行开销， 增加上行容量。
在本发明外环功率控制方法实施例四中， 在方法实施例一、 二的基础上， 本实施例的方法执行之前， 还包括：
确定 UE在预设周期内在专用信道 DCH或增强专用信道 E-DCH上无数据 发送。
具体地，本实施例针对软切换 UE，软切换 UE包括多个 DCH或 E-DCH的服 务小区 （主服务小区和非主服务小区） ， 在专用信道（Dedicated Channel, 简 称 DCH) 或增强专用信道 （Enhanced Dedicated Channel, 简称 E-DCH) 在预 设周期内不发送数据时， 则根据如下歩骤确定 UE的信噪比目标值进行外环功 率控制：
根据 UE在 DCH或 E-DCH的至少一个服务小区中的控制信道的各个性能 指标的目标值确定所述 UE在所述至少一个服务小区中至少一种性能映射指标 的目标值， 其中， 所述性能映射指标包括： 导频信号的误码率， 参考信号的 误码率， 控制信道参考测量的漏检概率， 其中， 所述控制信道参考测量的漏 检概率为统计预设时间内信道质量指示 CQI或增强的专用物理控制信道 E-DPCCH的译码后的信号功率与噪声功率的比值小于设定的参考测量门限的 漏检次数占总次数的概率 ·'
获取所述 UE在所述至少一个服务小区中的导频信号的误码率， 参考信号 的误码率， 控制信道参考测量的漏检概率中至少一种性能映射指标的测量值; 根据所述 UE在所述至少一个服务小区中上述至少一种性能映射指标的目 标值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值；
根据所述 UE的信噪比目标值对所述 UE进行外环功率控制， 以使得上述至 少一种性能映射指标经过所述外环功率控制后的测量值达到对应的性能映射 指标的目标值。
上述至少一个服务小区可以选择控制信道性能即上行接收质量最好的一 个或多个小区。
即采用方法实施例一、 二中描述的方法进行外环功率控制。
在第一次收到 DCH或 E-DCH上的数据后， 根据 DCH或 E-DCH的上行接收 质量调整信噪比目标值进行 DCH或 E-DCH外环功率控制。 即从根据控制信道 性能的外环功率控制切换到根据 DCH或 E-DCH质量的外环功率控制。 在只有 CCH期间， 仅利用 CCH的性能要求调整信噪比目标值， 能有效降低 CCH的上 行发送功率， 减小上行开销， 增加上行容量。
对于软切换 UE， 还可以只获取在 DCH或 E-DCH的服务小区的中导频信号 的误码率， 参考信号的误码率， 控制信道参考测量的漏检概率中至少一种性 能映射指标的目标值和对应的性能映射指标的测量值， 获取在 DCH或 E-DCH 的非服务小区的控制信道的性能是否受限的指示；
根据上述非主服务小区的控制信道的性能是否受限的指示以及主服务小 区的至少一种性能映射指标的目标值和对应的性能映射指标的测量值， 确定 UE在主服务小区的控制信道的信噪比目标值。
例如， 若非主服务小区发送控制信道的性能受限的指示， 而此时根据主 服务小区的导频信号的误码率， 参考信号的误码率， 控制信道参考测量的漏 检概率中至少一种性能映射指标的目标值和对应的性能映射指标的测量值也 判断出可以减小信噪比目标值， 则减小 UE在主服务小区的控制信道的信噪比 目标值， 减小对非主服务小区的干扰。
可选地， 本实施例的方法， 在所述 DCH或 E-DCH外环功率控制期间， 如 果获取到至少一个服务小区发送的控制信道性能受限的指示， 则所述 DCH或 E-DCH外环功率控制增加信噪比目标值， 且在收到至少一个服务小区的下一 个控制信道性能不受限的指示前， DCH或 E-DCH外环功率控制不能降低信噪 比目标值。
可选地， 根据所述 UE在各个小区中至少一种性能映射指标的目标值和对 应的性能映射指标的测量值确定所述 UE的信噪比目标值， 包括：
根据所述 UE在各个小区中导频信号的误码率， 参考信号的误码率， 控制 信道参考测量的漏检概率中至少一种性能映射指标的目标值和对应的性能映 射指标的测量值确定所述各个小区的信噪比目标值； 根据所述各个小区的信噪比目标值确定所述 UE的信噪比目标值。
具体地， 对于软切换 UE， 根据所述 UE在至少一个服务小区中导频信号的 误码率， 参考信号的误码率， 控制信道参考测量的漏检概率中至少一种性能 映射指标的目标值和对应的性能映射指标的测量值确定所述至少一个服务小 区的信噪比目标值；
根据所述至少一个服务小区的信噪比目标值确定所述 UE的信噪比目标 值。
本实施例， 通过在只有控制信道的数据期间， 仅利用控制信道的性能调 整信噪比目标值， 在第一次收到所述 DCH或 E-DCH上的数据后， 根据 DCH或 E-DCH的上行接收质量调整信噪比目标值进行 DCH或 E-DCH外环功率控制， 能有效降低 CCH的发射功率， 减小上行开销， 增加上行容量。
图 2为本发明外环功率控制装置实施例一的结构示意图， 如图 2所示， 本 实施例的外环功率控制装置 20， 可以设置在基站或控制器中， 可以包括： 映 射模块 201、 获取模块 202、 确定模块 203和功率控制模块 204， 其中， 映射模 块 201，用于根据用户设备 UE在各个小区中的控制信道的各个性能指标的目标 值确定所述 UE在所述各个小区中至少一种性能映射指标的目标值， 其中， 所 述性能映射指标包括： 导频信号的误码率， 参考信号的误码率， 控制信道参 考测量的漏检概率， 其中， 所述控制信道参考测量的漏检概率为统计预设时 间内信道质量指示 CQ域增强的专用物理控制信道 E-DPCCH的译码后的信号 功率与噪声功率的比值小于设定的参考测量门限的漏检次数占总次数的概 率； 获取模块 202，用于获取所述 UE在各个小区中至少一种性能映射指标的测 量值；确定模块 203，用于根据所述 UE在各个小区中至少一种性能映射指标的 目标值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值； 功率控 制模块 204， 用于根据所述 UE的信噪比目标值对所述 UE进行外环功率控制， 以使得所述至少一种性能映射指标经过所述外环功率控制后的测量值达到对 应的所述性能映射指标的目标值。
本实施例的装置， 可以用于执行图 1所示方法实施例的技术方案， 其实现 原理和技术效果类似， 此处不再赘述。
图 3为本发明外环功率控制装置实施例二的结构示意图， 如图 3所示， 本 实施例的装置在图 2所示装置结构的基础上， 进一歩地， 映射模块 201， 具体 用于： 将基于解调硬判的控制信道的性能指标的目标值映射到导频信号的误码 率或参考信号的误码率的目标值； 或者，
将基于译码结果的控制信道的性能指标的目标值映射到控制信道 CCH参 考测量的漏检概率的目标值。
可选地， 确定模块 203， 具体用于：
若所述导频信号的误码率或参考信号的误码率的测量值大于所述导频信 号的误码率或参考信号的误码率的目标值， 则增大所述信噪比目标值； 或者， 若所述控制信道参考测量的漏检概率的测量值大于所述控制信道参考测 量的漏检概率的目标值， 则增大所述信噪比目标值； 或者，
若所述导频信号的误码率或参考信号误码率的测量值小于所述导频信号 的误码率或参考信号的误码率的目标值， 且所述控制信道参考测量的漏检概 率的测量值小于所述控制信道参考测量的漏检概率的目标值， 则减小所述信 噪比目标值。
可选地， 确定模块 203， 还用于：
根据预设周期内统计的控制信道的各个性能指标的测量值， 调整所述至 少一种性能映射指标的目标值。
可选地， 确定模块 203， 具体用于：
若至少一个所述控制信道的性能指标的测量值低于第一阈值则减小所述 至少一种性能映射指标的目标值； 或者，
若至少一个所述控制信道的性能指标的测量值高于第二阈值则增大所述 至少一种性能映射指标的目标值。
可选地， 本实施例的装置， 还可以包括：
发送模块 205，用于在根据所述 UE在各个小区中至少一种性能映射指标的 目标值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值之后， 发 送控制信道的性能是否受限的指示。
可选地， 确定模块 203还用于：
在方法实施例一、 二的方法执行之前， 确定所述 UE在预设周期内在专用 信道 DCH或增强专用信道 E-DCH上无数据发送。
可选地， 确定模块 203， 具体用于：
根据所述 UE在各个小区中至少一种性能映射指标的目标值和对应的性能 映射指标的测量值确定所述各个小区的信噪比目标值； 根据所述各个小区的信噪比目标值确定所述 UE的信噪比目标值。
本实施例的装置， 可以用于执行方法实施例二、 三的技术方案， 其实现 原理和技术效果类似， 此处不再赘述。
图 4为本发明基站实施例一的结构示意图。 如图 4所示， 本实施例提供的 基站 40包括发射器 401、 接收器 402、 处理器 403和存储器 404。 其中， 所述发 射器用于发送数据信息或指示消息， 接收器用于接收导频信号的误码率， 参 考信号的误码率， 控制信道参考测量的漏检概率中至少一种性能映射指标的 测量值或其他信息， 所述存储器存储执行指令， 当所述基站运行时， 所述处 理器与所述存储器之间通信， 所述处理器执行所述执行指令使得所述基站执 行如下方法：
根据用户设备 UE在各个小区中的控制信道的各个性能指标的目标值确定 所述 UE在所述各个小区中至少一种性能映射指标的目标值， 其中， 所述性能 映射指标包括： 导频信号的误码率， 参考信号的误码率， 控制信道参考测量 的漏检概率； 其中， 所述控制信道参考测量的漏检概率为统计预设时间内信 道质量指示 CQI或增强的专用物理控制信道 E-DPCCH的译码后的信号功率与 噪声功率的比值小于设定的参考测量门限的漏检次数占总次数的概率；
获取所述 UE在各个小区中至少一种性能映射指标的测量值；
根据所述 UE在各个小区中至少一种性能映射指标的目标值和对应的性能 映射指标的测量值确定所述 UE的信噪比目标值；
根据所述 UE的信噪比目标值对所述 UE进行外环功率控制， 以使得所述至 少一种性能映射指标经过所述外环功率控制后的测量值达到对应的所述性能 映射指标的目标值。
本实施例的基站， 可以用于执行任一方法实施例的技术方案， 其实现原 理和技术效果类似， 此处不再赘述。
图 5为本发明外环功率控制设备实施例一的结构示意图。 如图 5所示， 本 实施例提供的外环功率控制设备 50包括处理器 501和存储器 502。 外环功率控 制设备 50还可以包括发射器 503、 接收器 504。 发射器 503和接收器 504可以和 处理器 501相连。 其中， 发射器 503用于发送数据或信息， 接收器 504用于接收 数据或信息， 存储器 502存储执行指令， 当外环功率控制设备 50运行时， 处理 器 501与存储器 502之间通信， 处理器 501调用存储器 502中的执行指令， 用于 执行方法实施例一〜四任一项所述的技术方案， 其实现原理和技术效果类似， 此处不再赘述。
在本申请所提供的几个实施例中， 应该理解到， 所揭露的设备和方法， 可以通过其它的方式实现。 例如， 以上所描述的设备实施例仅仅是示意性的， 例如， 所述单元或模块的划分， 仅仅为一种逻辑功能划分， 实际实现时可以 有另外的划分方式， 例如多个单元或模块可以结合或者可以集成到另一个系 统， 或一些特征可以忽略， 或不执行。 另一点， 所显示或讨论的相互之间的 耦合或直接耦合或通信连接可以是通过一些接口， 设备或模块的间接耦合或 通信连接， 可以是电性， 机械或其它的形式。
所述作为分离部件说明的模块可以是或者也可以不是物理上分开的， 作 为模块显示的部件可以是或者也可以不是物理模块， 即可以位于一个地方， 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或 者全部模块来实现本实施例方案的目的。
本领域普通技术人员可以理解： 实现上述各方法实施例的全部或部分歩 骤可以通过程序指令相关的硬件来完成。 前述的程序可以存储于一计算机可 读取存储介质中。 该程序在执行时， 执行包括上述各方法实施例的歩骤； 而 前述的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码 的介质。
最后应说明的是： 以上各实施例仅用以说明本发明的技术方案， 而非对 其限制； 尽管参照前述各实施例对本发明进行了详细的说明， 本领域的普通 技术人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行修改， 或者对其中部分或者全部技术特征进行等同替换； 而这些修改或者替换， 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种外环功率控制方法， 其特征在于， 包括：
根据用户设备 UE在各个小区中的控制信道的各个性能指标的目标值确定 所述 UE在所述各个小区中至少一种性能映射指标的目标值， 其中， 所述性能 映射指标包括： 导频信号的误码率， 参考信号的误码率， 控制信道参考测量 的漏检概率； 其中， 所述控制信道参考测量的漏检概率为统计预设时间内信 道质量指示 CQI或增强的专用物理控制信道 E-DPCCH的译码后的信号功率与 噪声功率的比值小于设定的参考测量门限的漏检次数占总次数的概率；
获取所述 UE在各个小区中至少一种性能映射指标的测量值；
根据所述 UE在各个小区中至少一种性能映射指标的目标值和对应的性能 映射指标的测量值确定所述 UE的信噪比目标值；
根据所述 UE的信噪比目标值对所述 UE进行外环功率控制， 以使得所述至 少一种性能映射指标经过所述外环功率控制后的测量值达到对应的所述性能 映射指标的目标值。
2、 根据权利要求 1所述的方法， 其特征在于， 所述根据用户设备 UE在各 个小区中的控制信道的各个性能指标的目标值确定所述 UE在所述各个小区中 至少一种性能映射指标的目标值， 包括：
将基于解调硬判的控制信道的性能指标的目标值映射到导频信号的误码 率或参考信号的误码率的目标值； 或者，
将基于译码结果的控制信道的性能指标的目标值映射到控制信道 CCH参 考测量的漏检概率的目标值。
3、根据权利要求 1或 2所述的方法， 其特征在于， 所述根据所述 UE在各个 小区中至少一种性能映射指标的目标值和对应的性能映射指标的测量值确定 所述 UE的信噪比目标值， 包括：
若所述导频信号的误码率或参考信号的误码率的测量值大于所述导频信 号的误码率或参考信号的误码率的目标值， 则增大所述信噪比目标值； 或者， 若所述控制信道参考测量的漏检概率的测量值大于所述控制信道参考测 量的漏检概率的目标值， 则增大所述信噪比目标值； 或者，
若所述导频信号的误码率或参考信号误码率的测量值小于所述导频信号 的误码率或参考信号的误码率的目标值， 且所述控制信道参考测量的漏检概 率的测量值小于所述控制信道参考测量的漏检概率的目标值， 则减小所述信 噪比目标值。
4、 根据权利要求 3所述的方法， 其特征在于， 还包括：
根据预设周期内统计的控制信道的各个性能指标的测量值， 调整所述至 少一种性能映射指标的目标值。
5、 根据权利要求 4所述的方法， 其特征在于， 所述根据预设周期内统计 的控制信道的各个性能指标的测量值， 调整所述至少一种性能映射指标的目 标值， 包括：
若至少一个所述控制信道的性能指标的测量值低于第一阈值则减小所述 至少一种性能映射指标的目标值； 或者，
若至少一个所述控制信道的性能指标的测量值高于第二阈值则增大所述 至少一种性能映射指标的目标值。
6、 根据权利要求 1〜5任一项所述的方法， 其特征在于， 所述根据所述 UE 在各个小区中至少一种性能映射指标的目标值和对应的性能映射指标的测量 值确定所述 UE的信噪比目标值之后， 还包括：
发送控制信道的性能是否受限的指示。
7、 根据权利要求 1〜6任一项所述的方法， 其特征在于， 所述方法执行之 前， 还包括：
确定所述 UE在预设周期内在专用信道 DCH或增强专用信道 E-DCH上无 数据发送。
8、 根据权利要求 1〜7任一项所述的方法， 其特征在于， 所述根据所述 UE 在各个小区中至少一种性能映射指标的目标值和对应的性能映射指标的测量 值确定所述 UE的信噪比目标值， 包括：
根据所述 UE在各个小区中至少一种性能映射指标的目标值和对应的性能 映射指标的测量值确定所述各个小区的信噪比目标值；
根据所述各个小区的信噪比目标值确定所述 UE的信噪比目标值。
9、 一种外环功率控制装置， 其特征在于， 包括：
映射模块， 用于根据用户设备 UE在各个小区中的控制信道的各个性能指 标的目标值确定所述 UE在所述各个小区中至少一种性能映射指标的目标值， 其中， 所述性能映射指标包括： 导频信号的误码率， 参考信号的误码率， 控 制信道参考测量的漏检概率， 其中， 所述控制信道参考测量的漏检概率为统 计预设时间内信道质量指示 CQI或增强的专用物理控制信道 E-DPCCH的译码 后的信号功率与噪声功率的比值小于设定的参考测量门限的漏检次数占总次 数的概率；
获取模块， 用于获取所述 UE在各个小区中至少一种性能映射指标的测量 值；
确定模块， 用于根据所述 UE在各个小区中至少一种性能映射指标的目标 值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值；
功率控制模块，用于根据所述 UE的信噪比目标值对所述 UE进行外环功率 控制， 以使得所述至少一种性能映射指标经过所述外环功率控制后的测量值 达到对应的所述性能映射指标的目标值。
10、根据权利要求 9所述的装置， 其特征在于， 所述映射模块， 具体用于: 将基于解调硬判的控制信道的性能指标的目标值映射到导频信号的误码 率或参考信号的误码率的目标值； 或者，
将基于译码结果的控制信道的性能指标的目标值映射到控制信道 CCH参 考测量的漏检概率的目标值。
11、 根据权利要求 9或 10所述的装置， 其特征在于， 所述确定模块， 具体 用于：
若所述导频信号的误码率或参考信号的误码率的测量值大于所述导频信 号的误码率或参考信号的误码率的目标值， 则增大所述信噪比目标值； 或者， 若所述控制信道参考测量的漏检概率的测量值大于所述控制信道参考测 量的漏检概率的目标值， 则增大所述信噪比目标值； 或者，
若所述导频信号的误码率或参考信号误码率的测量值小于所述导频信号 的误码率或参考信号的误码率的目标值， 且所述控制信道参考测量的漏检概 率的测量值小于所述控制信道参考测量的漏检概率的目标值， 则减小所述信 噪比目标值。
12、 根据权利要求 11所述的装置， 其特征在于， 所述确定模块， 还用于: 根据预设周期内统计的控制信道的各个性能指标的测量值， 调整所述至 少一种性能映射指标的目标值。
13、 根据权利要求 12所述的装置， 其特征在于， 所述确定模块， 具体用 于：
若至少一个所述控制信道的性能指标的测量值低于第一阈值则减小所述 至少一种性能映射指标的目标值； 或者，
若至少一个所述控制信道的性能指标的测量值高于第二阈值则增大所述 至少一种性能映射指标的目标值。
14、 根据权利要求 9〜13任一项所述的装置， 其特征在于， 还包括： 发送模块， 用于在根据所述 UE在各个小区中至少一种性能映射指标的目 标值和对应的性能映射指标的测量值确定所述 UE的信噪比目标值之后， 发送 控制信道的性能是否受限的指示。
15、 根据权利要求 9〜14任一项所述的装置， 其特征在于， 所述确定模块 还用于：
确定所述 UE在预设周期内在专用信道 DCH或增强专用信道 E-DCH上无 数据发送。
16、 根据权利要求 9〜15任一项所述的装置， 其特征在于， 所述确定模块， 具体用于：
根据所述 UE在各个小区中至少一种性能映射指标的目标值和对应的性能 映射指标的测量值确定所述各个小区的信噪比目标值；
根据所述各个小区的信噪比目标值确定所述 UE的信噪比目标值。
17、 一种基站， 其特征在于， 包括：
发射器、 接收器、 处理器和存储器； 其中， 所述发射器用于发送数据信 息或指示消息， 接收器用于接收导频信号的误码率， 参考信号的误码率， 控 制信道参考测量的漏检概率中至少一种性能映射指标的测量值或其他信息， 所述存储器存储执行指令， 当所述基站运行时， 所述处理器与所述存储器之 间通信， 所述处理器执行所述执行指令使得所述基站执行如权利要求 1〜8任一 项所述的方法。
18、 一种外环功率控制设备， 其特征在于， 包括：
处理器和存储器， 所述存储器存储执行指令， 当所述外环功率控制设备 运行时， 所述处理器与所述存储器之间通信， 所述处理器执行所述执行指令 使得所述外环功率控制设备执行如权利要求 1〜8任一项所述的方法。
PCT/CN2014/073503 2014-03-17 2014-03-17 外环功率控制方法、装置和设备 WO2015139168A1 (zh)

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