WO2014205655A1

WO2014205655A1 - Outer loop power control method, device and appliance

Info

Publication number: WO2014205655A1
Application number: PCT/CN2013/077906
Authority: WO
Inventors: 朱有团; 黄心晔
Original assignee: 华为技术有限公司
Priority date: 2013-06-25
Filing date: 2013-06-25
Publication date: 2014-12-31
Also published as: CN104412671B; CN104412671A

Abstract

The present invention relates to the technical field of communications. An outer loop power control method, device and appliance, the method comprising: determining the pilot bit error rate (BER) of a pilot symbol in the uplink dedicated control channel of a terminal; comparing the pilot BER with a target pilot BER corresponding to the terminal; and adjusting the signal-to-interference ratio (SIR) target of the terminal according to the result of the comparison between the pilot BER and the target pilot BER. An embodiment of the present invention solves the problem in the prior art that the transmission power of a terminal side cannot be effectively adjusted timely in the case of low utilization of an uplink data channel.

Description

Outer loop power control method, device and device

Technical field

The present invention relates to the field of communications technologies, and in particular, to an outer loop power control method, apparatus, and device. Background technique

The Code Division Multiple Access (CDMA) system is a self-contained system, because the CDMA system allows multiple terminals to transmit signals at the same time and at the same time, causing signals of multiple intra-frequency terminals to be superimposed and transmitted. For each terminal, the signals of other intra-frequency terminals are interference signals. The self-interference of CDMA systems cannot be completely eliminated and can only be reduced by technical means.

Power control is an effective means to reduce the self-interference of CDMA systems. That is, the terminal needs to use the lowest possible transmit power while transmitting a signal, while ensuring a certain reception quality. Because if the terminal uses a smaller transmit power, the receiver may not receive the signal sent by the terminal due to interference from other co-frequency terminals. If the terminal uses a larger transmit power, it will waste resources and other Frequency terminals cause interference, so power control is essential in CDMA systems.

Closed loop power control is a commonly used power control method in existing power control techniques. Closed loop power control includes inner loop power control and outer loop power control. The inner loop power control mainly refers to the signal-to-interference ratio (SIR, signal-to-interference ratio) and the signal-to-interference ratio target value of the received signal each time the receiver in the terminal and the network side receives the signal sent by the sender ( The SIR target is compared, and according to the comparison result, a power adjustment command is sent to the sender, and the sender adjusts the transmission power when the signal is transmitted to the receiver next time according to the received power adjustment command. For example, in the uplink inner loop power control, the network side compares the SIR of the signal sent by the received terminal with the SIR target stored for the terminal, and sends a power adjustment command to the terminal according to the comparison result, so that the terminal adjusts the The transmit power when the signal is sent to the network side once; in the downlink inner loop power control, the terminal compares the SIR of the signal sent by the received network side with the SIR target stored by the network for the network side, and compares the result to the network side according to the comparison result. Send a power adjustment command to enable the network side to adjust to the terminal next time. Transmit power when sending a signal.

The SIR target characterizes the SIR required by the receiver to correctly demodulate the useful signal transmitted by the sender. The purpose of the inner loop power control of the CDMA system is to enable the signal transmitter to transmit a signal to the receiver at a certain transmit power to ensure that the signal arrives. The receiver can maintain a certain SIR, that is, keep the SIR close to the SIR target. For different communication quality communication environments, the SIR target may be different. Therefore, it is necessary to adjust the SIR target value used by the inner loop power control according to the current communication quality of the CDMA system through the outer loop power control. In the prior art, the outer loop power control mainly refers to a link established between each terminal and the network side, and compares a block error ratio (BLER) of the data channel in the link with a corresponding target BLER, according to the comparison result. The SIR target of the link is adjusted so that the communication quality of each link remains substantially at a set value and is not affected by changes in the communication environment.

In the prior art, the process of uplink outer loop power control is: the network side measures the BLER value of the uplink data channel of the terminal, and compares with the target BLER value preset for the terminal, if the measured BLER value is greater than the target BLER value. Then, the SIR target is raised (that is, the transmission power of the terminal is indirectly adjusted); if the measured BLER value is smaller than the target BLER value, the SIR target is lowered (that is, the transmission power of the terminal is indirectly lowered).

However, when the uplink transmission activation factor is low, that is, when the uplink data channel utilization is low, the uplink data channel is idle for a long time, and the amount of transmitted data is small, and it is difficult for the network side to measure the BLER of the data channel. Therefore, the link quality cannot be reflected in time, resulting in a long SIR target adjustment period in the outer loop power control, and the transmit power of the terminal side cannot be adjusted in time and effectively. Summary of the invention

The embodiments of the present invention provide a method, a device, and a device for controlling the outer loop power, which are used to solve the problem that the transmit power of the terminal side cannot be adjusted in time and effectively when the uplink data channel utilization rate is low.

In a first aspect, an outer loop power control method is provided, including:

Determining a pilot error rate BER of a pilot symbol in an uplink dedicated control channel of the terminal;

Comparing the determined pilot BER with a target pilot BER corresponding to the terminal; And adjusting a target signal to interference ratio of the terminal according to at least a result of comparing the pilot BER with a pilot BER of the target pilot BER.

With reference to the first aspect, in a first possible implementation, the determining, by the target, the target pilot BER includes: determining at least one uplink dedicated control channel; and determining a target pilot corresponding to the determined uplink dedicated control channel BER, determining a target pilot BER corresponding to the terminal.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner, when the determined uplink dedicated control channel is an uplink dedicated control channel with a pilot symbol, and according to the determined uplink dedicated control channel Determining, by the first transmission quality indicator value of the first domain other than the pilot symbol, a target pilot BER corresponding to the determined uplink dedicated control channel, or when the determined uplink dedicated control channel is a non-existent pilot The uplink dedicated control channel of the symbol determines the target pilot BER corresponding to the determined uplink dedicated control channel by: when the interference cancellation gain is not obtained for the determined uplink dedicated control channel, according to the statistical determination Corresponding relationship between the first transmission quality indicator value of the first domain in the uplink dedicated control channel and the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol exists a pilot BER corresponding to a first transmission quality indicator value of the first domain in the determined uplink dedicated control channel; Provided the first transmission quality index value corresponding to a first domain pilot BER is determined to be the determination of the uplink dedicated control channel corresponding to the target pilot BER.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner, when the determined uplink dedicated control channel is an uplink dedicated control channel with a pilot symbol, and according to the determined uplink dedicated control channel Determining, by the first transmission quality indicator value of the first domain other than the pilot symbol, a target pilot BER corresponding to the determined uplink dedicated control channel, or when the determined uplink dedicated control channel is a non-existent pilot symbol And determining, by the uplink dedicated control channel, a target pilot BER corresponding to the determined uplink dedicated control channel: when obtaining an interference cancellation gain for the determined uplink dedicated control channel, according to a statistical actual measured signal to interference ratio, Corresponding relationship between the first transmission quality indicator value of the first domain in the determined uplink dedicated control channel and the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol exists Presetting a first transmission quality indicator value pair of the first domain in the determined uplink dedicated control channel Actual measured signal to interference ratio; using the corresponding actual measured signal to interference ratio value minus the statistical value of the interference cancellation gain obtained by the determined uplink dedicated control channel, to obtain an adjusted signal to interference ratio; a correspondence between the pilot BER of the pilot symbol in the uplink dedicated control channel with the pilot symbol and the actual measured signal-to-interference ratio, and determining the adjusted signal Comparing the corresponding pilot BER; determining a pilot BER corresponding to the adjusted signal-to-interference ratio as a target pilot BER corresponding to the determined uplink dedicated control channel.

In conjunction with the first possible implementation of the first aspect, or in combination with the second possible implementation of the first aspect, or in combination with the third possible implementation of the first aspect, in a fourth possible implementation Determining the at least one uplink dedicated control channel, including: determining a first uplink dedicated control channel; determining, according to the target pilot BER corresponding to the determined uplink dedicated control channel, determining a target pilot BER corresponding to the terminal, including: The determined target pilot BER corresponding to the first uplink dedicated control channel is determined as the target pilot BER corresponding to the terminal.

In conjunction with the first possible implementation of the first aspect, or in combination with the second possible implementation of the first aspect, or in combination with the third possible implementation of the first aspect, in a fifth possible implementation Determining the at least one uplink dedicated control channel, comprising: determining at least two uplink dedicated control channels respectively; determining, according to the target pilot BER corresponding to the determined uplink dedicated control channel, determining a target pilot BER corresponding to the terminal, including Determining, respectively, a target pilot BER corresponding to the at least two determined uplink dedicated control channels, and determining a minimum value of the target pilot BERs corresponding to the at least two determined uplink dedicated control channels respectively as the terminal corresponding to the terminal Target pilot BER.

With reference to the first aspect, or in combination with any of the foregoing possible implementation manners of the first aspect, in a sixth possible implementation, the result of comparing the pilot BER with the pilot BER of the target pilot BER, Adjusting the target signal to interference ratio of the terminal, including: increasing a value of a target signal to interference ratio of the terminal when the pilot BER is greater than the target pilot BER; or, when the pilot BER is smaller than When the target pilot BER is described, the value of the target signal to interference ratio of the terminal is reduced; or, when the pilot BER is equal to the target pilot BER, the value of the target signal to interference ratio of the terminal is kept unchanged. .

In combination with the first aspect, or in combination with any of the above possible implementations of the first aspect, In the seven possible implementation manners, the determining, according to the comparison between the pilot BER and the pilot BER of the target pilot BER, adjusting a target signal to interference ratio of the terminal, including: according to the pilot Comparing the BER with the pilot BER of the target pilot BER, and comparing the block error rate BLER of the uplink data channel of the terminal with the BLER of the target BLER corresponding to the terminal, adjusting the target signal to interference ratio of the terminal .

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, the adjusting a target signal to interference ratio of the terminal according to the pilot BER comparison result and the BLER comparison result The method includes: when determining, according to the comparison result of the pilot BER and the BLER comparison result, increasing a value of a target signal to interference ratio of the terminal, increasing a value of a target signal to interference ratio of the terminal; or Determining a value of a target signal to interference ratio of the terminal when determining a value of reducing a target signal to interference ratio of the terminal according to the comparison result of the pilot BER and the BLER comparison result; or Determining a value of a target signal to interference ratio of the terminal by using a comparison result between the pilot BER comparison result and the BLER comparison result, and determining to reduce a target signal to interference ratio of the terminal according to another comparison result a value, or determining to maintain a value of a target signal to interference ratio of the terminal when the value of the target signal to interference ratio of the terminal is kept unchanged; or, when comparing results according to the pilot BER and the BLER a comparison result, determining to reduce the value of the target signal to interference ratio of the terminal, and determining to maintain the target signal to interference ratio of the terminal when the value of the target signal to interference ratio of the terminal is kept unchanged according to another comparison result The value does not change.

With reference to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner, when the comparison result between the pilot BER and the BLER is compared, determining that the target signal of the terminal is increased When the value of the ratio is increased, increasing the value of the target signal to interference ratio of the terminal specifically includes: determining, according to the pilot BER comparison result, that the value of the target signal to interference ratio of the terminal needs to be increased by the first adjustment amount And determining, according to the BLER comparison result, that when the value of the target signal to interference ratio of the terminal needs to be increased by a second adjustment amount, increasing a value of the target signal to interference ratio of the terminal by the first adjustment amount and a larger one of the second adjustment amounts; when determining a value of reducing a target signal to interference ratio of the terminal according to the pilot BER comparison result and the BLER comparison result, reducing the terminal The value of the target signal to interference ratio specifically includes: determining, according to the pilot BER comparison result, that the terminal needs to be The value of the target signal-to-interference ratio is decreased by the third adjustment amount, and according to the BLER comparison result, when it is determined that the value of the target signal-to-interference ratio of the terminal needs to be decreased by the fourth adjustment amount, the target signal of the terminal is dried. The value of the ratio decreases the smaller of the third adjustment amount and the fourth adjustment amount.

With reference to the first aspect, or in combination with any one of the foregoing possible implementation manners of the first aspect, in a tenth possible implementation manner, after adjusting a target signal to interference ratio of the terminal, the method further includes: determining that the terminal is targeted to a statistical value of the interference cancellation gain obtained by the uplink dedicated data channel; the adjusted target signal to interference ratio is further adjusted according to the statistical value of the interference cancellation gain obtained by the first uplink dedicated data channel.

In a second aspect, an outer loop power control device is provided, including:

a determining module, configured to determine a pilot error rate BER of a pilot symbol in an uplink dedicated control channel of the terminal;

a comparison module, configured to compare a pilot BER determined by the determining module with a target pilot BER corresponding to the terminal;

And an adjusting module, configured to adjust a target signal to interference ratio of the terminal according to at least a comparison result between the pilot BER determined by the comparing module and a pilot BER of the target pilot BER.

With reference to the second aspect, in a first possible implementation, the comparing module includes a first determining unit and a second determining unit, where the first determining unit is configured to determine at least one uplink dedicated control channel, a second determining unit, configured to determine, according to the target pilot BER corresponding to the uplink dedicated control channel determined by the first determining unit, a target pilot BER corresponding to the terminal.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the second determining unit includes a first determining subunit and a second determining subunit; the first determining subunit And the uplink dedicated control channel determined by the first determining unit is an uplink dedicated control channel with a pilot symbol, and the first domain other than the pilot symbol preset according to the determined uplink dedicated control channel The first transmission quality indicator value determines a target pilot BER corresponding to the determined uplink dedicated control channel, or determines that the uplink dedicated control channel determined by the first determining unit is an uplink dedicated control channel in which pilot symbols are not present, Whether the uplink dedicated control channel determined by the first determining unit is capable of obtaining an interference cancellation gain; the second determining subunit, configured to Determining, by the first determining subunit, that the uplink dedicated control channel determined by the first determining unit does not obtain the interference cancellation gain, the first of the first domain in the uplink dedicated control channel determined according to the statistical first determining unit Determining a correspondence between the transmission quality indicator value and the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol exists, and determining the uplink dedicated control channel determined by the preset first determining unit a pilot BER corresponding to the first transmission quality indicator value of the first domain; determining a pilot BER corresponding to the preset first transmission quality indicator value of the first domain as the uplink determined by the first determining unit The target pilot BER corresponding to the dedicated control channel.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner, the second determining unit includes a third determining subunit and a fourth determining subunit; the third determining subunit And the uplink dedicated control channel determined by the first determining unit is an uplink dedicated control channel with a pilot symbol, and the first domain other than the pilot symbol preset according to the determined uplink dedicated control channel The first transmission quality indicator value determines a target pilot BER corresponding to the determined uplink dedicated control channel, or determines that the uplink dedicated control channel determined by the first determining unit is an uplink dedicated control channel in which pilot symbols are not present, Whether the uplink dedicated control channel determined by the first determining unit is capable of obtaining an interference cancellation gain; the fourth determining subunit, configured to: when the third determining subunit determines an uplink dedicated determined by the first determining unit When the control channel obtains the interference cancellation gain, the actual measured signal-to-interference ratio according to the statistics, and the uplink specific line determined by the first determining unit Corresponding relationship between the first transmission quality indicator value of the first domain in the control channel and the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol exists An actual measured signal to interference ratio corresponding to the first transmission quality indicator value of the first domain in the uplink dedicated control channel determined by the determining unit; using the value of the corresponding actual measured signal to interference ratio minus the first determining unit The statistical value of the interference ί 消 gain obtained by the uplink dedicated control channel is obtained, and the adjusted signal-to-interference ratio is obtained; according to the correspondence between the three, the uplink dedicated control channel in which the pilot symbol exists a pilot BER corresponding to the adjusted signal-to-interference ratio, and a pilot BER corresponding to the adjusted signal-to-interference ratio, a correspondence between a pilot BER of the pilot symbol and an actual measured signal-to-interference ratio Determining a target pilot BER corresponding to the uplink dedicated control channel determined by the first determining unit. In conjunction with the first possible implementation of the second aspect, or in combination with the second possible implementation of the second aspect, or in combination with the third possible implementation of the second aspect, in a fourth possible implementation The first determining unit, configured to determine a first uplink dedicated control channel, where the second determining unit is configured to use a target pilot BER corresponding to the first uplink dedicated control channel determined by the first determining unit And determining the target pilot BER corresponding to the terminal.

In conjunction with the first possible implementation of the second aspect, or in combination with the second possible implementation of the second aspect, or in combination with the third possible implementation of the second aspect, in a fifth possible implementation The first determining unit is configured to respectively determine at least two uplink dedicated control channels, where the second determining unit is configured to respectively determine target guides corresponding to the at least two uplink dedicated control channels determined by the first determining unit Frequency BER, and determining a minimum value of the target pilot BER corresponding to each of the at least two determined uplink dedicated control channels as a target pilot BER corresponding to the terminal.

With reference to the second aspect, or in combination with any one of the foregoing possible implementation manners of the second aspect, in a sixth possible implementation, the adjusting module is configured to: when the comparing module determines that the pilot BER is greater than the Increasing the value of the target signal to interference ratio of the terminal when the target pilot BER is; or, when the comparison module determines that the pilot BER is smaller than the target pilot BER, reducing the target signal of the terminal Or a value of the ratio; or, when the comparing module determines that the pilot BER is equal to the target pilot BER, keeping the value of the target signal to interference ratio of the terminal unchanged.

With reference to the second aspect, or in combination with any of the foregoing possible implementation manners of the second aspect, in a seventh possible implementation, the determining module is further configured to determine a block error rate BLER of an uplink data channel of the terminal. The comparison module is further configured to compare the BLER determined by the determining module with a target BLER corresponding to the terminal, to obtain a BLER comparison result, where the adjustment module is configured to be used according to the comparison module Comparing the frequency BER with the pilot BER of the target pilot BER, and comparing the BLER determined by the comparison module with the BLER of the target BLER, adjusting the target signal to interference ratio of the terminal.

In conjunction with the seventh possible implementation of the second aspect, in an eighth possible implementation, the adjusting module is configured to: when the pilot BER comparison result is determined according to the comparing module, As a result of the BLER comparison, when it is determined that the value of the target signal to interference ratio of the terminal is increased, the value of the target signal to interference ratio of the terminal is increased; or, when the pilot BER comparison result is determined according to the comparison module Comparing with the BLER result, when determining a value of reducing a target signal to interference ratio of the terminal, reducing a value of a target signal to interference ratio of the terminal; or, when the pilot is determined according to the comparison module Determining, by a comparison result of the BER comparison result and the BLER comparison result, increasing a value of a target signal to interference ratio of the terminal, and determining to reduce a target signal of the terminal according to another comparison result determined by the comparison module a value of a dry ratio, or determining to maintain a value of a target signal to interference ratio of the terminal when the value of the target signal to interference ratio of the terminal is kept unchanged; or, when the pilot BER is determined according to the comparison module Comparing the result of the comparison with the comparison result of the BLER, determining to reduce the value of the target signal to interference ratio of the terminal, and determining to maintain the target of the terminal according to another comparison result determined by the comparison module When the value of the signal to interference ratio is constant, the value of the target signal to interference ratio of the terminal is kept unchanged.

With reference to the eighth possible implementation of the second aspect, in a ninth possible implementation, the adjusting module is configured to determine, when the pilot BER comparison result is determined according to the comparing module, The value of the target signal-to-interference ratio of the terminal is increased by the first adjustment amount, and when it is determined that the value of the target signal-to-interference ratio of the terminal needs to be increased by the second adjustment amount according to the BLER comparison result determined by the comparison module, And increasing a value of the target signal-to-interference ratio of the terminal by a larger one of the first adjustment amount and the second adjustment amount; determining, according to the pilot BER comparison result determined by the comparison module, And decreasing a value of the target signal-to-interference ratio of the terminal by a third adjustment amount, and determining, according to the BLER comparison result determined by the comparison module, that the value of the target signal-to-interference ratio of the terminal needs to be reduced by a fourth adjustment And decreasing the value of the target signal to interference ratio of the terminal by a smaller of the third adjustment amount and the fourth adjustment amount.

With reference to the second aspect, or in combination with any one of the foregoing possible implementation manners of the second aspect, in the tenth possible implementation, the adjusting module is further configured to determine, after adjusting a target signal to interference ratio of the terminal, a statistical value of the interference cancellation gain obtained by the terminal for the first uplink dedicated data channel; and further adjusting the adjusted target signal to interference ratio according to the statistical value of the interference cancellation gain obtained by the first uplink dedicated data channel.

In a third aspect, a network device is provided, including the second aspect, or any one of the second aspects An external loop power control device is provided in a possible implementation.

In a fourth aspect, a network device is provided, including:

a receiver, configured to receive information transmitted in an uplink dedicated control channel of the terminal;

a processor, configured to determine a pilot error rate BER of a pilot symbol in an uplink dedicated control channel of the terminal received by the receiver; the determined pilot BER and a target pilot BER corresponding to the terminal Performing a comparison; at least adjusting a target signal to interference ratio of the terminal according to a result of comparing the pilot BER with a pilot BER of the target pilot BER.

With reference to the fourth aspect, in a first possible implementation, the processor is configured to determine at least one uplink dedicated control channel, and determine, according to the target pilot BER corresponding to the determined uplink dedicated control channel, the corresponding terminal Target pilot BER.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the processor is configured to: when the determined uplink dedicated control channel is an uplink dedicated control channel with a pilot symbol, and according to Determining, by the first uplink quality indicator value of the first domain other than the pilot symbol, in the determined uplink dedicated control channel, determining a target pilot BER corresponding to the determined uplink dedicated control channel, or determining the uplink dedicated The control channel is an uplink dedicated control channel in which no pilot symbol exists, and the target pilot BER corresponding to the determined uplink dedicated control channel is determined by: when no interference cancellation gain is obtained for the determined uplink dedicated control channel, Corresponding relationship between the first transmission quality indicator value of the first domain in the uplink dedicated control channel and the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol is present, according to the statistics Determining, corresponding to the first transmission quality indicator value of the first domain in the determined uplink dedicated control channel that is preset Pilot BER; a first transmission quality indicator value corresponding to the BER of the pilot pre-determined frequency domain of the first uplink dedicated control channel corresponding to the BER target guiding said determined.

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation, the processor, when the determined uplink dedicated control channel is an uplink dedicated control channel with a pilot symbol, and according to Determining, by the first uplink quality indicator value of the first domain other than the pilot symbol, in the determined uplink dedicated control channel, determining a target pilot BER corresponding to the determined uplink dedicated control channel, or determining the uplink dedicated Control channel is uplink dedicated control without pilot symbols Channel, determining a target pilot BER corresponding to the determined uplink dedicated control channel by: when obtaining an interference cancellation gain for the determined uplink dedicated control channel, according to a statistical actual measured signal to interference ratio, the determined Corresponding relationship between the first transmission quality indicator value of the first domain in the uplink dedicated control channel and the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol exists Determining an actual measured signal to interference ratio corresponding to the first transmission quality indicator value of the first domain in the determined uplink dedicated control channel; using the value of the corresponding actual measured signal to interference ratio minus the determined uplink dedicated control channel a statistical value of the interference cancellation gain, and an adjusted signal to interference ratio; according to the correspondence between the three, the pilot of the pilot symbol in the uplink dedicated control channel with the pilot symbol Determining a correspondence between the BER and the actual measured signal to interference ratio, and determining a pilot BER corresponding to the adjusted signal to interference ratio; corresponding to the adjusted signal to interference ratio The pilot BER is determined as the target pilot BER corresponding to the determined uplink dedicated control channel.

In conjunction with the first possible implementation of the fourth aspect, or in combination with the second possible implementation of the fourth aspect, or in combination with the third possible implementation of the fourth aspect, in a fourth possible implementation manner The processor is configured to determine a first uplink dedicated control channel, and determine the determined target pilot BER corresponding to the first uplink dedicated control channel as a target pilot BER corresponding to the terminal.

In combination with the first possible implementation of the fourth aspect, or with the second possible implementation of the fourth aspect, or with the third possible implementation of the fourth aspect, in a fifth possible implementation manner The processor is configured to respectively determine at least two uplink dedicated control channels; respectively determine target pilot BERs corresponding to at least two determined uplink dedicated control channels, and respectively correspond to the at least two determined uplink dedicated control channels respectively The minimum value in the target pilot BER is determined as the target pilot BER corresponding to the terminal.

With reference to the fourth aspect, or in combination with any one of the foregoing possible implementation manners of the fourth aspect, in a sixth possible implementation, the processor, when the pilot BER is greater than the target pilot BER And increasing a value of a target signal to interference ratio of the terminal; or, when the pilot BER is smaller than the target pilot BER, reducing a value of a target signal to interference ratio of the terminal; or, when When the pilot BER is equal to the target pilot BER, the value of the target signal to interference ratio of the terminal is kept unchanged. With reference to the fourth aspect, or in combination with any one of the foregoing possible implementation manners of the fourth aspect, in a seventh possible implementation, the processor is further configured to use the pilot BER and the target pilot The result of the pilot BER comparison of the BER, and the result of comparing the block error rate BLER of the uplink data channel of the terminal with the BLER of the target BLER corresponding to the terminal, adjusts the target signal to interference ratio of the terminal.

With reference to the seventh possible implementation of the fourth aspect, in an eighth possible implementation, the processor is configured to determine to increase according to the pilot BER comparison result and the BLER comparison result. When the value of the target signal to interference ratio of the terminal is increased, the value of the target signal to interference ratio of the terminal is increased; or, when the comparison result between the pilot BER and the BLER is compared, the terminal is determined to be reduced. Decreasing the value of the target signal to interference ratio of the terminal when the value of the target signal to interference ratio is; or determining to increase the value according to a comparison result between the pilot BER comparison result and the BLER comparison result The value of the target signal to interference ratio of the terminal, according to another comparison result, determining to decrease the value of the target signal to interference ratio of the terminal, or determining to keep the value of the target signal to interference ratio of the terminal unchanged, increase the a value of a target signal to interference ratio of the terminal; or, when a comparison result of the pilot BER comparison result and the BLER comparison result is determined, determining a value of reducing a target signal to interference ratio of the terminal, according to another ratio As a result, determining the value of the target SIR to maintain the terminal when the constant value of the target SIR to maintain the terminal unchanged.

With reference to the eighth possible implementation manner of the foregoing aspect, in a ninth possible implementation, the processor, the processor, is configured to determine, according to the pilot BER comparison result, that the The value of the target signal-to-interference ratio of the terminal is increased by the first adjustment amount, and according to the BLER comparison result, when it is determined that the value of the target signal-to-interference ratio of the terminal needs to be increased by the second adjustment amount, the target of the terminal is determined. The value of the signal to interference ratio increases a larger value of the first adjustment amount and the second adjustment amount; when determining, according to the pilot BER comparison result, the value of the target signal to interference ratio of the terminal needs to be reduced a small third adjustment amount, and determining, according to the BLER comparison result, that when the value of the target signal to interference ratio of the terminal needs to be decreased by a fourth adjustment amount, reducing a value of the target signal to interference ratio of the terminal by the The smaller of the third adjustment amount and the fourth adjustment amount.

In combination with the fourth aspect, or in combination with any of the above possible implementation manners of the fourth aspect, In the ten possible implementations, the processor is further configured to: after adjusting a target signal to interference ratio of the terminal, determine a statistical value of the interference cancellation gain obtained by the terminal for the first uplink dedicated data channel; The statistical value of the interference cancellation gain obtained by the first uplink dedicated data channel further adjusts the adjusted target signal to interference ratio.

Advantageous effects of embodiments of the present invention include:

The method, device and device for controlling outer loop power provided by the embodiment of the present invention perform uplink and outer loop power control according to the pilot BER of the pilot symbol in the uplink dedicated control channel of the terminal, even if the uplink data channel utilization rate is low. At the same time, the terminal still periodically sends signals to the network side through the uplink control channel, and the network side can perform external loop power control in time and effectively based on the quality of the control channel, and performs uplink and outer loop power control according to the BLER of the data channel in the prior art. The method for controlling the outer loop power provided by the embodiment of the present invention can adjust the transmit power of the terminal in time and effectively even when the uplink data channel utilization rate is low. DRAWINGS

1 is a flowchart of an outer loop power control method according to an embodiment of the present invention; FIG. 2 is a second flowchart of an outer loop power control method according to an embodiment of the present invention; FIG. 4 is a flowchart of an outer loop power control method according to an embodiment of the present invention; FIG. 4 is a flowchart of an outer loop power control method according to an embodiment of the present invention; A schematic diagram of a structure of a ring power control device; FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention. detailed description

The specific embodiments of the method, device and device for controlling the outer loop power provided by the embodiments of the present invention are described below with reference to the accompanying drawings.

A method for controlling outer loop power provided by an embodiment of the present invention, as shown in FIG. 1, may include the following steps:

S101. Determine a pilot error rate (BER) of pilot symbols in an uplink dedicated control channel of the terminal. Bit Error Rate ).

5102. Compare the pilot BER determined in S101 with a target pilot BER corresponding to the terminal.

5103. Adjust the SIR target of the terminal according to the pilot BER comparison result of the pilot BER and the target pilot BER.

Further, in S101, the terminal transmits control information to the network side through the uplink dedicated control channel. In different CDMA systems, the uplink dedicated control channels of the terminals are different. For example, in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system, an uplink dedicated control channel may refer to a Dedicated Physical Control Channel (DPCCH); in a CDMA2000 system. The uplink dedicated control channel may be referred to as a Dedicated Physical Control Channel (DPCCH); in a Wideband Code Division Multiple Access (WCDMA) system, the uplink dedicated control channel may refer to an uplink dedicated physical control channel. (DPCCH, Dedicated Physical Control Channel).

Further, in S101, the pilot symbol may be a pilot symbol in any CDMA system, for example: pilot symbols in a TD-SCDMA system, pilot symbols in a CDMA2000 system, and dedicated physical control in a WCDMA system. Pilot symbol in the channel (DPCCH, Dedicated Physical Control Channel). Different from the uplink data channel, the uplink dedicated control channel does not have a Cyclic Redundancy Check (CRC) check. Therefore, the BLER of the uplink dedicated control channel cannot be obtained through the CRC check of the uplink dedicated control channel, and the uplink dedicated control channel cannot be obtained. The BLER of the dedicated control channel performs uplink and outer loop power control.

Further, in S101, when determining a pilot BER of a pilot symbol in an uplink dedicated control channel of the terminal, the pilot BER of the pilot symbol in the signal transmitted by the uplink dedicated control channel of the terminal may be counted according to requirements, for example, according to The triggering of an event carries out the statistics of the pilot BER of the pilot symbol, and may also set a period for determining the pilot BER. For example, the pilot of the pilot symbol in the signal transmitted by the uplink dedicated control channel of the terminal may be periodically counted. BER.

Further, in S102, at least one uplink dedicated control channel may be determined, and may be Determining a target pilot BER corresponding to the uplink dedicated control channel, and determining a target pilot BER corresponding to the terminal.

Further, there may be multiple types of uplink dedicated control channels in the CDMA system, and the network side may determine at least one type of uplink dedicated control channel that is of interest to the network side according to actual needs. It can be understood that at least one type of network-side concern is The uplink dedicated control channel may change according to different needs or scenarios.

Further, the target pilot BER corresponding to the terminal may be determined according to the determined target pilot BER corresponding to the at least one uplink dedicated control channel; for example, the following manner may be used:

Determining a first uplink dedicated control channel, and determining the determined target pilot BER corresponding to the first uplink dedicated control channel as a target pilot BER corresponding to the terminal; or

Determining at least two uplink dedicated control channels respectively, respectively determining target pilot BERs corresponding to at least two determined uplink dedicated control channels, and determining a minimum of target pilot BERs corresponding to the at least two determined uplink dedicated control channels respectively The value is determined as the target pilot BER corresponding to the terminal.

In order to further illustrate the outer loop power control method provided by the embodiment of the present invention, FIG. 2 is a flowchart of an outer loop power control method according to another embodiment of the present invention, and an outer loop power control method according to an embodiment of the present invention. Specific steps are as follows:

5201. Determine a pilot BER of a pilot symbol in an uplink dedicated control channel of the terminal.

Further, taking the WCDMA system as an example, in the WCDMA system, the uplink dedicated control channel refers to the uplink DPCCH, and the pilot symbol of the uplink DPCCH is pilot. In the WCDMA system, this step is to determine the pilot symbol in the uplink DPCCH channel of the terminal. Pilot error rate.

5202. Determine a first uplink dedicated control channel.

Further, in this step, the network side may determine a certain type of uplink dedicated control channel that is of interest to the first uplink dedicated control channel according to actual needs.

Further, taking a WCDMA system as an example, a WCDMA system includes multiple types of uplink dedicated control channels, such as: an uplink DPCCH, an Enhanced Dedicated Physical Control Channel (E-DPCCH), and an uplink high-speed dedicated physical physics. Control channel (HS-DPCCH, High Speed Dedicated Physical Control Channel). Network side The uplink dedicated control channel of any of the above types is determined as the first uplink dedicated control channel according to actual needs.

S203. Determine, as the target pilot BER corresponding to the first uplink dedicated control channel determined in S202, a target pilot BER corresponding to the terminal.

Further, in this step, the content carried by the uplink dedicated control channel is composed of different parts, and each component may be referred to as a domain. The WCDMA system is used as an example. In addition to the pilot symbol domain, the uplink DPCCH may further include: Transmit Power Control (TPC), Transmit Power Control (TPCI, Transport Format Combination Indicator) i3⁄4 and Feedback Information (FBI, Feedback Information) fields, E-DPCCH includes one domain, and HS-DPCCH includes channel CQI, Channel Quality Information field and acknowledgment (ACK, Acknowledge) field.

Further, in this step, the transmission quality indicator value of the domain reflects the transmission quality of the transmission link, and the transmission quality indicator value of the domain may include the missed detection probability, the false alarm probability, the BLER, etc. of the domain, and several different transmissions. A combination of quality indicators. The missed detection may send the sender a certain domain to the receiver through a certain channel, but the domain is not detected by the receiver through the channel; the false alarm may be sent by the sender to the receiver through a certain channel. The signal does not include a domain, but the receiver detects the domain through the channel. The BLER can send a domain to the receiver through the channel, and the receiver receives the channel through the channel. The field was detected in the signal, but the value of the received field was incorrect.

Further, although pilot symbols are not present for each type of uplink dedicated control channel, the target pilot BER corresponding to each type of uplink dedicated control channel can be determined. The determination method can include:

When the uplink dedicated control channel with the pilot symbol is determined as the first uplink dedicated control channel, the target pilot BER of the pilot symbol may be directly set as the target pilot BER corresponding to the first uplink dedicated control channel; however, the network side Determining, according to actual needs, a certain transmission quality indicator value of a domain other than the pilot symbol in the first uplink dedicated control channel of the pilot symbol with the same, and passing the transmission quality indicator value of the domain, Indirectly adjusting the target pilot BER corresponding to the terminal, Then, the domain is used as the first domain, and the transmission quality indicator value is used as the first transmission quality indicator value, and the first transmission quality indicator value of the first domain of the first uplink dedicated control channel is mapped to the first a pilot BER of the uplink dedicated control channel pilot symbol, and determining the mapped pilot BER as a target pilot BER corresponding to the first uplink dedicated control channel;

When the uplink dedicated control channel in which the pilot symbol is not present is determined as the first uplink dedicated control channel, the network side may determine, according to actual needs, a transmission quality indicator value of a certain domain of the first uplink dedicated control channel that is of interest to the network, and The target pilot BER corresponding to the terminal is indirectly adjusted by using the value of the transmission quality indicator of the domain. Then, the domain is used as the first domain, and the transmission quality indicator value is used as the first transmission quality indicator value, by using the first The first transmission quality indicator value of the first domain of the uplink dedicated control channel is mapped to the pilot BER of the uplink dedicated control channel pilot symbol with the pilot symbol, and the mapped pilot BER is determined as the first uplink dedicated control The target pilot BER corresponding to the channel.

Further, taking the WCDMA system as an example, when the uplink DPCCH is determined as the first uplink dedicated control channel, since the pilot symbol pilot exists in the uplink DPCCH, the pilot can be directly set to specify the minimum requirement of the pilot BER for the pilot symbol. The minimum requirement can ensure that the terminal and the network side do not lose the step. Therefore, the minimum requirement of the pilot BER for the pilot symbol specified by the protocol can be set as the target pilot BER corresponding to the uplink DPCCH, or, according to actual needs, Adjusting the value of the pilot BER of the pilot symbol based on the minimum requirement, and setting the value of the pilot BER of the adjusted pilot symbol to the target pilot BER corresponding to the uplink DPCCH;

When the network side is concerned with the first transmission quality indicator value of the first domain except the pilot symbol in the uplink DPCCH, the first transmission quality indicator value of the first domain and the pilot symbol in the uplink DPCCH may be established in the uplink DPCCH. Corresponding relationship between the pilot BERs, mapping the first transmission quality indicator value of the first domain to the pilot BER of the pilot symbol in the uplink DPCCH, and determining the pilot BER of the mapping as the target guide corresponding to the uplink DPCCH For example, the network side is concerned with the BLER value of the TPC field in the uplink DPCCH, and needs to perform the outer loop power control indirectly through the BLER value of the TPC domain in the uplink DPCCH. Then, the network side can preset the uplink DPCCH according to requirements. a BLER value of the TPC field in the middle, and establishing a correspondence between the BLER value and a pilot BER of the pilot symbol in the uplink DPCCH, mapping the BLER value to a pilot BER of the pilot symbol in the uplink DPCCH, and The pilot BER of the mapped pilot symbol is determined as the target pilot BER corresponding to the uplink DPCCH;

When the uplink E-DPCCH or the uplink HS-DPCCH is determined as the first uplink dedicated control channel, since there are no pilot symbols in the uplink E-DPCCH and the uplink HS-DPCCH, the uplink E-DPCCH and the uplink HS cannot be directly counted. - the pilot BER of the DPCCH, but when the network side cares about the first transmission quality indicator value of the first domain in the uplink E-DPCCH or the uplink HS-DPCCH, it may be established by establishing the uplink E-DPCCH or the uplink HS-DPCCH a correspondence between a first transmission quality indicator value of a domain and a pilot BER of a pilot symbol in an uplink DPCCH, mapping the first transmission quality indicator value of the first domain to a pilot BER of a pilot symbol in the uplink DPCCH, For example, the network side cares about the missed detection probability of the CQI field of the uplink HS-DPCCH, and needs to perform the outer loop power control indirectly through the missed detection probability of the CQI domain of the HS-DPCCH of the uplink DPCCH, then the network side can Determining, by default, the probability of missed detection of the CQI field in the uplink HS-DPCCH, and establishing a correspondence between the missed detection probability and the pilot BER of the pilot symbol in the uplink DPCCH, the probability of missed detection BER is an uplink pilot shot pilot symbols in the DPCCH pilot BER, and the mapping of pilot symbols is determined as the uplink HS-DPCCH corresponding to the target pilot frequency BER.

Further, in the embodiment of the present invention, a certain transmission quality indicator value of a certain domain in an uplink dedicated control channel may be mapped to a pilot symbol in an uplink dedicated control channel in which a pilot symbol exists. Frequency B ER, the method of offline simulation can be:

Establishing a transmitting end, a transmission channel, a noise signal on the transmission channel, and a model of the receiver at the receiving end; setting a plurality of preset SIRs in advance (by presetting the received power of the received signal on the transmission channel, and changing the transmission channel The size of the noise power is obtained, and a plurality of different preset SIRs are obtained. For each preset SIR, the actual measured SIR of the transport channel and the different domains of the transport channel corresponding to the preset SIR are counted multiple times. Correspondence between different transmission quality indicator values. For each preset SIR, a series of actual measured SIRs of the transport channel can be obtained, and the transport channel is different. Correspondence between different transmission quality indicator values corresponding to the domain;

Further, when the preset SIR is used, the actual measured SIR of the uplink dedicated control channel, a certain transmission quality indicator value corresponding to a domain other than the pilot symbol of the uplink dedicated control channel in which the pilot symbol exists, and the presence When the correspondence between the pilot symbol BER of the uplink dedicated control channel of the pilot symbol is used, the transmitting end, the uplink dedicated control channel, the noise signal on the uplink dedicated control channel, and the receiver model of the receiving end may be established. For each preset SIR, a series of uplink dedicated control channel actual measurement SIR, a pilot dedicated control channel with pilot symbols, and a certain transmission quality indicator value corresponding to a domain other than the pilot symbol, and the same Corresponding relationship between pilot symbols BER of uplink dedicated control channels with pilot symbols;

Further, when for the preset SIR, the actual measurement SIR, a certain transmission quality indicator value corresponding to a certain domain of the uplink dedicated control channel where no pilot symbol exists, and the pilot symbol of the uplink dedicated control channel in which the pilot symbol exists are calculated. When the correspondence between the three BERs is concerned, since the uplink dedicated control channel without the pilot symbol has a certain power offset with respect to the uplink dedicated control channel with the pilot symbol, that is, according to the presence of the pilot symbol The SIR preset by the uplink dedicated control channel can be determined as the preset SIR of the uplink dedicated control channel without the pilot symbol, and then there is an uplink dedicated control channel of the pilot symbol and an uplink dedicated control channel without the pilot symbol. Performing offline simulation transmission and reception according to the corresponding preset SIR, and obtaining an actual measurement SIR, a certain transmission quality indicator value corresponding to a certain domain of the uplink dedicated control channel in which no pilot symbol exists, and an uplink dedicated to the presence of the pilot symbol The correspondence between the pilot symbols BER of the control channel.

In summary, by the offline simulation method, a certain transmission quality indicator value of a certain domain of an uplink dedicated control channel can be mapped to a pilot BER of a pilot symbol in an uplink dedicated control channel in which a pilot symbol exists.

Further, determining a target pilot BER corresponding to the first uplink dedicated control channel, and further considering an interference cancellation (IC) of the first uplink dedicated control channel. That is, when the signal of the first uplink dedicated control channel of the terminal is demodulated by the network side, the interference signal of the first uplink dedicated control channel of the terminal is cancelled by the other terminal, for the first uplink dedicated control channel. Can get the IC gain, which is the signal to noise ratio gain; instead, when When the network side demodulates the signal of the first uplink dedicated control channel of the terminal, the interference signal of the other terminal to the first uplink dedicated control channel of the terminal cannot be eliminated (for example, the network side first demodulates the first uplink dedicated control) Channel signal), not available for the first uplink dedicated control channel

IC gain. Taking the WCDMA system as an example, due to the limitation of the power control feedback delay, the uplink DPCCH cannot obtain the IC gain, and the uplink E-DPCCH and the uplink HS-DPCCH can obtain the IC gain, and which channels can obtain the IC gain can usually be obtained by the network side. Set it in advance.

Further, the IC gain can be obtained for the first uplink dedicated control channel, and when the signal of the first uplink dedicated control channel of the terminal is demodulated, the interference of the other terminal to the first uplink dedicated control channel of the terminal is eliminated. The signal, for the first uplink dedicated control channel, can obtain an increased SIR, that is, the transmit power is appropriately reduced, and the first uplink dedicated control channel can be correctly demodulated, so that power waste can be avoided. The IC gain subtraction obtained by the first uplink dedicated control channel capable of obtaining the IC gain.

In summary, after determining the first uplink dedicated control channel, the determined first uplink dedicated control channel is an uplink dedicated control channel with pilot symbols, and is preset according to the determined first uplink dedicated control channel. The first transmission quality indicator value of the first domain except the pilot symbol determines a target pilot BER corresponding to the determined first uplink dedicated control channel, or when the determined first uplink dedicated control channel is not present The uplink dedicated control channel of the frequency symbol determines the target pilot BER corresponding to the determined first uplink dedicated control channel by:

When the IC gain is obtained for the determined first uplink dedicated control channel, the actual measured SIR according to the statistics, the first transmission quality indicator value of the first domain in the determined first uplink dedicated control channel, and the presence of the pilot symbol Determining, by the correspondence between the pilot BERs of the pilot symbols in the uplink dedicated control channel, the actual corresponding to the first transmission quality indicator value of the first domain in the determined first uplink dedicated control channel Measuring the SIR; using the value of the corresponding actual measured SIR minus the statistical value of the IC gain obtained by the determined first uplink dedicated control channel, to obtain the adjusted SIR; according to the correspondence between the three, there is a pilot Determining a pilot BER corresponding to the adjusted SIR by determining a correspondence between a pilot BER of the pilot symbol in the uplink dedicated control channel of the symbol and the actual measured SIR; determining a pilot BER corresponding to the adjusted SIR as The determined first uplink Using the target pilot BER corresponding to the control channel;

When the IC gain cannot be obtained for the determined first uplink dedicated control channel, the actual transmission SIR, the first transmission quality indicator value of the first domain in the determined first uplink dedicated control channel, and the presence guide may be obtained according to statistics. a first transmission quality indicator value of the first domain in the determined first uplink dedicated control channel, and a presence guide, in a correspondence between pilot BERs of pilot symbols in an uplink dedicated control channel of the frequency symbol Determining, by a correspondence between the pilot BERs of the pilot symbols in the uplink dedicated control channel of the frequency symbol, determining a first transmission quality indicator value of the first domain in the determined first uplink dedicated control channel Corresponding pilot BER; determining a pilot BER corresponding to the preset first transmission quality indicator value of the first domain as the target pilot BER corresponding to the determined first uplink dedicated control channel.

Further, the statistical value of the IC gain may be an average value of the IC gain obtained for the first uplink dedicated control channel within a preset time, or an alpha filter value of the IC gain obtained for the first uplink dedicated control channel within a preset time. Or other form of statistical value of the IC gain obtained for the first uplink dedicated control channel within a preset time.

Further, the execution of S202 and S203 is not in the order of step S201, and step S201 may be performed first to execute S202 and S203, or S202 and S203 may be executed first, and then step S201 is performed.

5204. Compare the pilot BER determined in S201 with the target pilot BER corresponding to the terminal determined in S203.

5205. Adjust the SIR target of the terminal according to at least the pilot BER and the pilot BER of the target pilot BER.

In this step, when the pilot BER is greater than the target pilot BER, the value of the SIR target of the terminal may be increased. The value of the SIR target may be increased in multiple ways. For example, the value of the SIR target may be Increase at least one step, or directly increase the value of the SIR target to a certain value, the size of the step can be set according to actual needs; or, when the pilot BER is smaller than the target pilot BER, the terminal can be reduced. The value of the SIR target, wherein the value of the SIR target can be decremented by d, for example, the value of the SIR target can be reduced by at least one step, or the value of the SIR target can be directly reduced to one. The determined value, the size of the step can be set according to actual needs Or; when the pilot BER is equal to the target pilot BER, the value of the terminal's SIR target can be kept unchanged.

FIG. 3 is a flowchart of a method for controlling an outer loop power according to another embodiment of the present invention. The specific steps of an outer loop power control method according to an embodiment of the present invention are as follows:

S301. Determine a pilot BER of a pilot symbol in an uplink dedicated control channel of the terminal.

5302. Determine at least two uplink dedicated control channels respectively.

Further, in this step, the network side may determine at least two types of uplink dedicated control channels that are of interest to the network side according to actual needs.

S303. Determine a target pilot BER corresponding to the at least two uplink dedicated control channels determined in S302, and determine a minimum value of the target pilot BER corresponding to the at least two determined uplink dedicated control channels respectively. Target pilot BER.

Further, since the power offsets of the different uplink dedicated control channels are different, when determining the target pilot BER corresponding to the terminal according to the target pilot BER corresponding to the at least two uplink dedicated control channels, at least two uplink dedicated states may be separately determined. The target pilot BER corresponding to the control channel is determined, and the minimum value of the target pilot BERs corresponding to the at least two uplink dedicated control channels respectively is determined as the target pilot BER corresponding to the terminal. The target pilot BER of the uplink dedicated control channel is the smallest, indicating that the uplink dedicated control channel requires the largest transmit power, and the terminal transmits the signal according to the maximum transmit power to ensure that the signals of other uplink dedicated control channels can be correctly received by the receiver.

Further, taking the WCDMA system as an example, since the power offset settings of the uplink E-DPCCH and the uplink HS-DPCCH are different from those of the uplink DPCCH, at least two uplinks in the uplink DPCCH, the uplink E-DPCCH, or the uplink HS-DPCCH may be respectively determined. The target pilot BER corresponding to the dedicated control channel, and the minimum value of the determined target pilot BER is determined as the target pilot BER corresponding to the terminal.

Further, H does not separately determine the target pilot BER corresponding to the uplink DPCCH and the uplink HS-DPCCH, and in this example, does not consider the acquisition of the IC gain of the uplink DPCCH and the uplink HS-DPCCH, and presets the TPC domain of the uplink DPCCH. a BLER value, and determining an uplink DPCCH corresponding according to a correspondence between the BLER value and a pilot BER of a pilot symbol of an uplink DPCCH The target pilot BER is BER1; preset the missed detection probability of the CQI domain of the uplink HS-DPCCH, and determine the uplink HS-DPCCH corresponding according to the correspondence between the missed detection probability and the pilot BER of the pilot symbol of the uplink DPCCH The pilot BER is BER2, and BER1 is smaller than BER2, and BER1 is determined as the target pilot BER corresponding to the terminal.

Further, in this embodiment, among the at least two uplink dedicated control channels, the method for determining the target pilot BER corresponding to each uplink dedicated control channel is the target corresponding to the first uplink dedicated control channel introduced in the previous embodiment. The method for determining the pilot BER is the same and will not be described here.

Further, the execution of S302 and S303 is not in the order of step S301, and S301 and S303 may be performed first, or S302 and S303 may be performed first, and then step S301 is performed.

5304. Compare the pilot BER determined in S301 with the target pilot BER corresponding to the terminal determined in S303.

S305. Adjust the SIR target of the terminal according to at least the pilot BER and the pilot BER of the target pilot BER.

In this step, when the pilot BER is greater than the target pilot BER, the value of the SIR target of the terminal may be increased. The value of the SIR target may be increased in multiple ways. For example, the value of the SIR target may be Increase at least one step, or directly increase the value of the SIR target to a certain value, the size of the step can be set according to actual needs; or, when the pilot BER is smaller than the target pilot BER, the terminal can be reduced. The value of the SIR target, wherein the value of the SIR target can be decremented by d, for example, the value of the SIR target can be reduced by at least one step, or the value of the SIR target can be directly reduced to one. The determined value, the size of the step can be set according to actual needs; or, when the pilot BER is equal to the target pilot BER, the value of the SIR target of the terminal can be kept unchanged.

Further, in the embodiment of the present invention, the SIR target adjusted in step S305 may be further adjusted, including: S306. Determine a statistical value of the IC gain obtained by the terminal for the first uplink dedicated data channel.

Further, when the IC gain obtained for the first uplink dedicated data channel may be a signal of the first uplink dedicated data channel of the demodulation terminal, the other terminal is eliminated from the terminal. The interference signal of an uplink dedicated data channel, the IC gain obtained for the first uplink dedicated data channel, that is, the signal to noise ratio gain.

Further, the statistical value of the IC gain may be an average value of the IC gain obtained for the first uplink dedicated data channel within a preset time, or an alpha of an IC gain obtained for the first uplink dedicated data channel within a preset time ( Alpha) filter value, or other form of statistical value of the IC gain obtained for the first uplink dedicated data channel within a preset time.

Further, taking the WCDMA system as an example, the first uplink dedicated data channel may be a Dedicated Physical Data Channel (DPD) or an Enhanced Dedicated Physical Data Channel (E-DPDCH).

S307. Further adjust the SIR target according to the statistical value of the IC gain obtained by the first uplink dedicated data channel.

Further, since the uplink dedicated data channel can generally obtain the IC gain, in the embodiment of the present invention, the SIR target can be appropriately adjusted according to the statistical value of the IC gain obtained by the first uplink dedicated data channel, thereby ensuring that the terminal is as low as possible. The transmission power is normally communicated, and the transmission power is guaranteed to not cause power waste.

Further, the SIR target may be appropriately reduced according to the statistical value of the IC gain obtained by the first uplink dedicated data channel, and the value of the SIR target may be a preset percentage of the statistical value of the IC gain obtained by the first uplink dedicated data channel ( The percentage is less than or equal to 100%. For example, if the DPDCH is the first uplink dedicated data channel, and the statistical value of the IC gain obtained by the DPDCH is adb, the SIR target can be appropriately reduced by 0.25 adb or 0.3 adb to achieve further adjustment of the SIR target. .

FIG. 4 is a flowchart of an external loop power control method according to another embodiment of the present invention. The specific steps of the outer loop power control method provided by the embodiment of the present invention are as follows:

5401. Determine a pilot BER of a pilot symbol in an uplink dedicated control channel of the terminal.

S402: Compare the pilot BER determined in S401 with the target pilot BER corresponding to the terminal, and obtain a pilot BER comparison result.

5403. Determine a BLER of an uplink data channel of the foregoing terminal. In this step, a period for determining the BLER of the uplink data channel may be set, and the BLER of the uplink data channel of the terminal may be periodically counted.

S404: Compare the BLER determined in S403 with the target BLER corresponding to the terminal, to obtain a BLER comparison result.

Further, in this embodiment, the method for performing outer loop power control using the BLER of the uplink data channel of the terminal in the prior art, and the pilot BER of the pilot symbol using the uplink dedicated control channel of the terminal in the embodiment of the present invention may be used. The method of performing outer loop power control is combined to perform outer loop power control for the terminal.

The step S403, the step S404, the step S401, the step S402 are performed in the order of the step S403, the step S404, the step S401, the step S402, or the step S401, the step S402, the step S403, the step The sequence of S404 is executed.

S405: Determine whether the pilot BER comparison result and the BLER comparison result are both determining to increase the value of the SIR target of the terminal; if yes, proceed to step S406; otherwise, proceed to step S407.

5406. When determining, according to the comparison result of the pilot BER and the BLER comparison result, that the value of the SIR target of the terminal is increased, increase the value of the SIR target of the terminal; and complete the adjustment of the value of the SIR target of the terminal. .

For example, in this step, when it is determined according to the pilot BER comparison result, it is determined that the value of the SIR target of the terminal needs to be increased by the first adjustment amount, and according to the BLER comparison result, it is determined that the value of the SIR target of the terminal needs to be increased. When the second adjustment amount is large, the value of the SIR target of the terminal is increased by a larger value of the first adjustment amount and the second adjustment amount.

5407. Determine whether the pilot BER comparison result and the BLER comparison result are both determining to reduce the value of the SIR target of the terminal; if yes, proceed to step S408; otherwise, proceed to step S409.

5408. When determining, according to the comparison result of the pilot BER and the BLER comparison result, that the value of the SIR target of the terminal is decreased, reducing the value of the SIR target of the terminal; and completing the adjustment of the value of the SIR target of the terminal. .

For example, in this step, when the comparison result of the pilot BER is used, it is determined that the terminal needs to be used. The value of the SIR target is decreased by the third adjustment amount, and according to the BLER comparison result, when it is determined that the value of the SIR target of the terminal needs to be decreased by the fourth adjustment amount, the value of the SIR target of the terminal is decreased by the third The smaller of the adjustment amount and the fourth adjustment amount described above.

5409, determining, in the comparison result of the pilot BER and the BLER comparison result, whether a comparison result is determining to increase a value of the SIR target of the terminal, and another comparison result is determining to decrease a value of the SIR target of the terminal; Go to step S410; otherwise, go to step S411.

5410. Determine, according to a comparison result between the pilot BER comparison result and the foregoing BLER comparison result, that the value of the SIR target of the terminal is increased, and according to another comparison result, determining to decrease the value of the SIR target of the terminal, increase The value of the SIR target of the above terminal is large; the adjustment of the value of the SIR target of the above terminal is completed.

For example, in this step, when it is determined according to the pilot BER comparison result, it is determined that the value of the SIR target of the terminal needs to be increased by the first adjustment amount, and according to the BLER comparison result, it is determined that the value of the SIR target of the terminal needs to be reduced. When the fourth adjustment amount is small, the value of the SIR target of the terminal is increased by the first adjustment amount; or

Determining, according to the result of the pilot BER comparison, that the value of the SIR target of the terminal needs to be decreased by a third adjustment amount, and determining, according to the BLER comparison result, that the value of the SIR target of the terminal needs to be increased by a second adjustment amount. And increasing the value of the SIR target of the terminal to the second adjustment amount.

5411. Determine whether the comparison result of the pilot BER comparison result and the BLER comparison result is that a comparison result is that the value of the SIR target of the terminal is increased, and another comparison result is that the value of the SIR target of the terminal is determined to be unchanged; If yes, go to step S412; otherwise, go to step S413.

5412. When determining, according to the comparison result of the pilot BER comparison result and the foregoing BLER comparison result, increasing the value of the SIR target of the terminal, and determining, according to another comparison result, that the value of the SIR target of the terminal is unchanged, Increasing the value of the SIR target of the above terminal; completing the adjustment of the value of the SIR target of the above terminal.

5413. Determine whether the pilot BER comparison result and the BLER comparison result are The result of the comparison is to determine to reduce the value of the SIR target of the terminal, and another comparison result is to determine that the value of the SIR target of the terminal is kept unchanged; if yes, go to step S414; otherwise, complete the value of the SIR target of the terminal. Adjustment.

S414. Determine, according to the comparison result of the pilot BER comparison result and the BLER comparison result, that the value of the SIR target of the terminal is decreased, and according to another comparison result, determining that the value of the SIR target of the terminal is unchanged, The value of the SIR target of the above terminal is kept unchanged; the adjustment of the value of the SIR target of the above terminal is completed.

Based on the same inventive concept, the embodiment of the present invention further provides an outer loop power control device and device. Since the principle of solving the problem by the device and the device is similar to the foregoing outer loop power control method, the implementation of the device and the device can be referred to the foregoing method. The implementation, the repetition will not be repeated.

The outer loop power control device provided by the embodiment of the present invention, as shown in FIG. 5, includes:

a determining module 501, configured to determine a pilot error rate BER of a pilot symbol in an uplink dedicated control channel of the terminal;

The comparing module 502 is configured to compare the pilot BER determined by the determining module 501 with a target pilot BER corresponding to the terminal;

The adjusting module 503 is configured to adjust a target signal to interference ratio of the terminal according to at least a comparison result between the pilot BER determined by the comparing module 502 and the pilot BER of the target pilot BER.

Further, the determining module 501, when determining the pilot BER of the pilot symbol in the uplink dedicated control channel of the terminal, may calculate the pilot BER of the pilot symbol in the signal transmitted by the uplink dedicated control channel of the terminal according to requirements. For example, the pilot BER of the pilot symbol may be set according to the trigger of an event, and the period of determining the pilot BER may also be set. For example, the pilot symbol in the signal transmitted by the uplink dedicated control channel of the terminal may be periodically counted. Pilot BER.

Further, the comparison module 502 may include a first determining unit 5021 and a second determining unit 5022;

The first determining unit 5021 is configured to determine at least one uplink dedicated control channel. The second determining unit 5022 is configured to determine the terminal according to the target pilot BER corresponding to the uplink dedicated control channel determined by the first determining unit 5021. Corresponding target pilot BER. Further, there may be multiple types of uplink dedicated control channels in the CDMA system, and the network side may determine at least one type of uplink dedicated control channel that is of interest to the network side according to actual needs. It can be understood that at least one type of network-side concern is The uplink dedicated control channel may change according to different needs or scenarios.

Further, although pilot symbols are not present for each type of uplink dedicated control channel, the comparison module 502 can determine the target pilot BER for each type of uplink dedicated control channel.

When the uplink dedicated control channel determined by the first determining unit 5021 is an uplink dedicated control channel with a pilot symbol, the second determining unit 5022 may directly set a target pilot BER of the pilot symbol as the determined uplink dedicated control channel. Target pilot BER; however, the network side may determine, according to actual needs, a transmission quality indicator value of a certain domain other than the pilot symbol in the determined uplink dedicated control channel of the existing pilot symbol of interest, and The target radio BER corresponding to the terminal is indirectly adjusted by the value of the transmission quality indicator of the domain. Then, the second determining unit 5022 may use the domain as the first domain, and use the transmission quality indicator value as the first transmission quality indicator value. And mapping the first transmission quality indicator value of the first domain of the determined uplink dedicated control channel to the pilot BER of the determined uplink dedicated control channel pilot symbol, and determining the mapped pilot BER as the determination Target pilot BER corresponding to the uplink dedicated control channel;

When the uplink dedicated control channel determined by the first determining unit 5021 is an uplink dedicated control channel in which pilot symbols are not present, the network side may determine, according to actual needs, a certain transmission quality of a certain domain of the determined uplink dedicated control channel that is of interest to the network. The value of the indicator, and the target pilot BER corresponding to the terminal is indirectly adjusted by the value of the transmission quality indicator of the domain. Then, the second determining unit 5022 may use the domain as the first domain, and the transmission quality indicator value is used as the first Transmitting a quality indicator value by mapping a first transmission quality indicator value of the first domain of the determined uplink dedicated control channel to a pilot BER of an uplink dedicated control channel pilot symbol having a pilot symbol, and guiding the mapping The frequency BER is determined as the target pilot BER corresponding to the determined uplink dedicated control channel.

Further, the comparison module 502 may map a certain transmission quality indicator value of a certain domain in an uplink dedicated control channel to an uplink dedicated control with a pilot symbol by using an offline simulation method. The pilot BER of the pilot symbols in the channel.

Further, the second determining unit 5022 determines the target pilot BER corresponding to the determined uplink dedicated control channel, and further considers the IC gain of the determined uplink dedicated control channel. That is, when the network side demodulates the signal of the determined uplink dedicated control channel of the terminal, the interference dedicated signal of the determined uplink dedicated control channel of the terminal is eliminated, and the determined uplink dedicated control channel is determined. The IC gain, that is, the signal-to-noise ratio gain can be obtained. Conversely, when the network side demodulates the determined uplink dedicated control channel signal of the terminal, the interference of the other terminal to the determined uplink dedicated control channel of the terminal cannot be eliminated. The signal (eg, the network side first demodulates the determined signal of the uplink dedicated control channel), the IC gain is not obtained for the determined uplink dedicated control channel.

In combination, the foregoing second determining unit 5022 may include a first determining subunit and a second determining stator unit;

The first determining sub-unit may be used to: when the uplink dedicated control channel determined by the first determining unit 5021 is an uplink dedicated control channel with a pilot symbol, and according to the determined uplink dedicated control channel, the preset pilot is removed. The first transmission quality indicator value of the first domain other than the symbol determines the target pilot BER corresponding to the determined uplink dedicated control channel, or the uplink dedicated control channel determined by the first determining unit 5021 is the absence of the pilot symbol. Determining an uplink dedicated dedicated control channel, determining whether an uplink dedicated control channel determined by the first determining unit 5021 can obtain an interference cancellation gain;

The foregoing second determining sub-unit may be configured to: when the first determining sub-unit determines that the uplink dedicated control channel determined by the first determining unit 5021 does not obtain the interference and the gain, the first determining unit 5021 according to the statistics. Corresponding relationship between the first transmission quality indicator value of the first domain in the determined uplink dedicated control channel and the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol is present, determined and preset The pilot BER corresponding to the first transmission quality indicator value of the first domain in the uplink dedicated control channel determined by the foregoing first determining unit 5021; corresponding to the preset first transmission quality indicator value of the first domain The pilot BER is determined as the target pilot BER corresponding to the uplink dedicated control channel determined by the first determining unit 5021. The foregoing second determining unit 5022 may include a third determining subunit and a fourth determining subunit. The third determining subunit may be used when the uplink dedicated control channel determined by the first determining unit 5021 is a pilot symbol. An uplink dedicated control channel, and determining, according to the first transmission quality indicator value of the first domain other than the pilot symbol preset in the determined uplink dedicated control channel, the target pilot BER corresponding to the determined uplink dedicated control channel, Alternatively, when the uplink dedicated control channel determined by the first determining unit 5021 is an uplink dedicated control channel in which pilot symbols are not present, it is determined whether an uplink dedicated control channel determined by the first determining unit 5021 can obtain an interference cancellation gain;

The fourth determining subunit may be configured to: when the third determining subunit determines that the interference cancellation gain is obtained for the uplink dedicated control channel determined by the first determining unit 5021, according to a statistical actual measured signal to interference ratio, the foregoing first determining The correspondence between the first transmission quality indicator value of the first domain in the uplink dedicated control channel determined by the unit 5021 and the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol exists is determined and determined. Presetting the actual measured signal to interference ratio corresponding to the first transmission quality indicator value of the first domain in the uplink dedicated control channel determined by the foregoing first determining unit 5021; using the value of the corresponding actual measured signal to interference ratio minus the above a statistical value of the interference ί 消 gain obtained by the uplink dedicated control channel determined by the first determining unit 5021, to obtain an adjusted signal-to-interference ratio; according to the correspondence between the three, the pilot symbol exists Corresponding relationship between the pilot BER of the pilot symbol in the uplink dedicated control channel and the actual measured signal to interference ratio, determined and said After the signal to interference ratio corresponding pilot BER; determined as the first determination unit 5021 determines the target pilot uplink dedicated control channel corresponding to the pilot SIR and BER after adjusting the ratio of the corresponding pilot BER.

Further, the first determining unit 5021 is configured to determine a first uplink dedicated control channel, and the second determining unit 5022 is configured to: target the first uplink dedicated control channel determined by the first determining unit 5021 The frequency BER is determined as the target pilot BER corresponding to the terminal.

Further, the foregoing first determining unit 5021 is configured to separately determine at least two uplink dedicated control channels;

The second determining unit 5022 is configured to determine the determined by the first determining unit 5021, respectively. The target pilot BER corresponding to the two uplink dedicated control channels is reduced, and the minimum value of the target pilot BERs corresponding to the at least two determined uplink dedicated control channels respectively is determined as the target pilot BER corresponding to the terminal.

Further, because the power offsets of the different uplink dedicated control channels are different, when the target pilot BER corresponding to the terminal is determined according to the target pilot BER corresponding to the at least two uplink dedicated control channels, the comparing module 502 may determine at least The target pilot BER corresponding to the two uplink dedicated control channels, and determining the minimum value of the target pilot BER corresponding to the at least two uplink dedicated control channels respectively as the target pilot BER corresponding to the terminal. The target pilot BER of the uplink dedicated control channel is the smallest, indicating that the uplink dedicated control channel requires the largest transmit power, and the terminal transmits the signal according to the maximum transmit power to ensure that the signals of other uplink dedicated control channels can be correctly received by the receiver.

Further, the adjusting module 503 is configured to increase the value of the SIR target of the terminal when the comparing module 502 determines that the pilot BER is greater than the target pilot BER, where the value of the SIR target is increased. There are a plurality of types, for example, the value of the SIR target can be increased by at least one step, or the value of the SIR target can be directly increased to a certain value, and the size of the step can be set according to actual needs; or

When the comparison module 502 determines that the pilot BER is smaller than the target pilot BER, the value of the SIR target of the terminal is decreased, and the value of the SIR target may be reduced in various manners, for example, the SIR may be The value of the target is reduced by at least one step, or the value of the SIR target is directly reduced to a certain value, and the size of the step may be set according to actual needs; or, when the comparison modulo 502 determines that the pilot BER is equal to In the above target pilot BER, the value of the SIR target of the above terminal is kept unchanged.

Further, the determining module 501 is further configured to determine a BLER of an uplink data channel of the terminal.

The comparing module 502 is further configured to compare the BLER determined by the determining module 501 with the target BLER corresponding to the terminal, to obtain a BLER comparison result;

The adjusting module 503 is configured to use the pilot BER determined by the comparing module 502. The pilot BER comparison result of the target pilot BER is compared with the BLER comparison result of the BLER determined by the comparison module 502 and the target BLER, and the SIR target of the terminal is adjusted.

Further, the adjusting module 503 is configured to increase the SIR target of the terminal when determining the value of the SIR target of the terminal according to the pilot BER comparison result determined by the comparing module 502 and the BLER comparison result. Value; or,

When the comparison result of the pilot BER determined by the comparison module 502 and the BLER comparison result are both determined to reduce the value of the SIR target of the terminal, the value of the SIR target of the terminal is decreased; or

When the comparison result between the pilot BER comparison result determined by the comparison module 502 and the BLER comparison result is determined, it is determined that the value of the SIR target of the terminal is increased, and the comparison result is determined according to another comparison result determined by the comparison module 502. If the value of the SIR target of the terminal is small, or when the value of the target signal to interference ratio of the terminal is kept unchanged, the value of the SIR target of the terminal is increased; or

Determining the value of the SIR target of the terminal is determined according to the comparison result of the pilot BER comparison result determined by the comparison module 502 and the BLER comparison result, and determining to maintain according to another comparison result determined by the comparison module 502. When the value of the SIR target of the terminal is unchanged, the value of the SIR target of the terminal is kept unchanged.

Further, the adjusting module 503 is specifically configured to determine, according to the pilot BER comparison result determined by the comparing module 502, that the value of the SIR target of the terminal needs to be increased by a first adjustment amount, and determined according to the comparing module 502. When the BLER comparison result determines that the value of the SIR target of the terminal needs to be increased by the second adjustment amount, the value of the SIR target of the terminal is increased by the larger of the first adjustment amount and the second adjustment amount. ;

Determining that the value of the SIR target of the terminal needs to be decreased by a third adjustment amount according to the foregoing comparison result of the pilot BER determined by the comparison module 502, and determining that the terminal needs to be used according to the BLER comparison result determined by the comparison module 502. When the value of the SIR target is decreased by the fourth adjustment amount, the value of the SIR target of the terminal is decreased by the smaller of the third adjustment amount and the fourth adjustment amount. Further, the adjusting module 503 is further configured to: after adjusting a target signal to interference ratio of the terminal, determine a statistical value of an IC gain obtained by the terminal for the first uplink dedicated data channel; and obtained according to the first uplink dedicated data channel. The adjusted value of the IC gain further adjusts the adjusted SIR target.

Further, in the device embodiment provided by the present invention, the interaction and implementation between the modules may refer to the corresponding content in the method embodiment provided by the present invention.

The network device is provided by the embodiment of the present invention, and the device includes the above outer loop power control device provided by the embodiment of the present invention.

Further, the network device provided by the embodiment of the present invention may be a base station, or a base station controller, or a combination of a base station and a base station controller.

A network device, as shown in FIG. 6, includes:

a receiver 601, configured to receive information transmitted in an uplink dedicated control channel of the terminal;

The processor 602 is configured to determine a pilot error rate BER of a pilot symbol in an uplink dedicated control channel of the terminal received by the receiver 601, and perform the determined pilot BER and a target pilot BER corresponding to the terminal. Comparing; adjusting the target signal to interference ratio of the terminal according to at least the pilot BER and the pilot BER of the target pilot BER.

Further, when determining, by the processor 602, the pilot BER of the pilot symbol in the uplink dedicated control channel of the terminal, the pilot BER of the pilot symbol in the signal transmitted by the uplink dedicated control channel of the terminal may be counted according to requirements. For example, according to the triggering of a certain event, the pilot BER of the pilot symbol is counted, and the period of determining the pilot BER may also be set. For example, the pilot symbol in the signal transmitted by the uplink dedicated control channel of the terminal may be periodically counted. Pilot BER.

Further, the processor 602 is configured to determine at least one uplink dedicated control channel, and determine a target pilot BER corresponding to the terminal according to the target pilot BER corresponding to the determined uplink dedicated control channel.

Further, there may be multiple types of uplink dedicated control channels in the CDMA system, and the network side may determine at least one type of uplink dedicated control channel that is of interest to the network side according to actual needs. It can be understood that at least one type of network-side concern is The uplink dedicated control channel may be based on Different needs or scenarios change.

Further, although pilot symbols are not present for each type of uplink dedicated control channel, the processor 602 described above can determine the target pilot BER for each type of uplink dedicated control channel.

When the determined uplink dedicated control channel is the uplink dedicated control channel with the pilot symbol, the processor 602 may directly set the target pilot BER of the pilot symbol as the target pilot BER corresponding to the determined uplink dedicated control channel; The network side may determine, according to actual needs, a certain transmission quality indicator value of a certain domain other than the pilot symbol in the determined uplink dedicated control channel of the pilot symbol that is of interest, and pass the transmission quality indicator of the domain. The value of the target pilot BER corresponding to the terminal is indirectly adjusted. Then, the processor 602 may use the domain as the first domain, and use the transmission quality indicator value as the first transmission quality indicator value, by using the determined uplink dedicated control channel. The first transmission quality indicator value of the first domain is mapped to the pilot BER of the determined uplink dedicated control channel pilot symbol, and the mapped pilot BER is determined as the target pilot corresponding to the determined uplink dedicated control channel. BER;

When the determined uplink dedicated control channel is an uplink dedicated control channel in which no pilot symbol exists, the network side may determine, according to actual needs, a certain transmission quality of a certain domain of the determined uplink dedicated control channel of the non-existent pilot symbol that is of interest to the network. The indicator value, and indirectly adjusting the target pilot BER corresponding to the terminal by using the value of the transmission quality indicator of the domain, the processor 602 may use the domain as the first domain, and use the transmission quality indicator value as the first transmission quality. And an indicator value, by mapping a first transmission quality indicator value of the first domain of the determined uplink dedicated control channel to a pilot BER of an uplink dedicated control channel pilot symbol with a pilot symbol, and mapping the pilot BER The target pilot BER corresponding to the determined uplink dedicated control channel is determined.

Further, the processor 602 may map, by using an offline simulation method, a certain transmission quality indicator value of a certain domain in an uplink dedicated control channel to a pilot BER of a pilot symbol in an uplink dedicated control channel in which a pilot symbol exists. .

Further, the processor 602 determines the target pilot BER corresponding to the determined uplink dedicated control channel, and further considers the IC gain of the determined uplink dedicated control channel. That is When the signal of the determined uplink dedicated control channel of the terminal is demodulated by the network side, since the interference signal of the determined uplink dedicated control channel of the terminal by the other terminal is eliminated, the determined uplink dedicated control channel can be obtained. IC gain, that is, signal-to-noise ratio gain; conversely, when the network side demodulates the signal of the determined uplink dedicated control channel of the terminal, the interference signal of the determined uplink dedicated control channel of the terminal to the terminal cannot be eliminated ( For example, the network side first demodulates the signal of the determined uplink dedicated control channel, and the IC gain cannot be obtained for the determined uplink dedicated control channel.

In combination, the foregoing processor 602 is configured to: when the determined uplink dedicated control channel is an uplink dedicated control channel with a pilot symbol, and according to the first preset dedicated control channel, except for a pilot symbol The first transmission quality indicator value of the domain determines a target pilot BER corresponding to the determined uplink dedicated control channel, or when the determined uplink dedicated control channel is an uplink dedicated control channel in which pilot symbols are not present, the method is determined as follows The target pilot BER corresponding to the determined uplink dedicated control channel:

When the interference cancellation gain is not obtained for the determined uplink dedicated control channel, the first transmission quality indicator value of the first domain in the determined uplink dedicated control channel according to the statistics, and the uplink of the presence of the pilot symbol Determining, by the correspondence between the pilot BERs of the pilot symbols in the dedicated control channel, a pilot BER corresponding to the first transmission quality indicator value of the first domain in the determined uplink dedicated dedicated control channel And determining a pilot BER corresponding to the preset first transmission quality indicator value of the first domain as the target pilot BER corresponding to the determined uplink dedicated control channel.

Further, the processor 602 is configured to: when the determined uplink dedicated control channel is an uplink dedicated control channel with pilot symbols, and according to the first preset dedicated control channel, except for the pilot symbol The first transmission quality indicator value of the domain determines a target pilot BER corresponding to the determined uplink dedicated control channel, or when the determined uplink dedicated control channel is an uplink dedicated control channel in which pilot symbols are not present, the method is determined as follows The target pilot BER corresponding to the determined uplink dedicated control channel:

When the interference cancellation gain is obtained for the determined uplink dedicated control channel, according to the measured actual measured signal to interference ratio, the first transmission quality of the first domain in the determined uplink dedicated control channel An indicator value, and a pilot of the pilot symbol in the uplink dedicated control channel in which the pilot symbol is present

Corresponding relationship between the three BERs, determining an actual measured signal to interference ratio corresponding to the first transmission quality indicator value of the first domain in the determined uplink dedicated control channel; using the corresponding actual measurement signal The value of the dry ratio is subtracted from the statistical value of the interference and gain obtained by the determined uplink dedicated control channel, and the adjusted signal-to-interference ratio is obtained; according to the correspondence between the three, the presence guide Determining a pilot BER corresponding to the adjusted signal to interference ratio according to a correspondence between a pilot BER of a pilot symbol in an uplink dedicated control channel of the frequency symbol and an actual measured signal to interference ratio; The corresponding pilot BER is determined as the target pilot BER corresponding to the determined uplink dedicated control channel.

Further, the processor 602 is configured to determine a first uplink dedicated control channel, and determine the determined target pilot BER corresponding to the first uplink dedicated control channel as a target pilot BER corresponding to the terminal.

Further, the processor 602 is configured to separately determine at least two uplink dedicated control channels, respectively determine target pilot BERs corresponding to the at least two determined uplink dedicated control channels, and determine the at least two determined uplink dedicated control The minimum value of the target pilot BERs corresponding to the respective channels is determined as the target pilot BER corresponding to the terminal.

Further, since the power offsets of the different uplink dedicated control channels are different, when determining the target pilot BER corresponding to the terminal according to the target pilot BER corresponding to the at least two uplink dedicated control channels, the processor 602 may determine at least The target pilot BER corresponding to the two uplink dedicated control channels, and determining the minimum value of the target pilot BER corresponding to the at least two uplink dedicated control channels respectively as the target pilot BER corresponding to the terminal. The target pilot BER of the uplink dedicated control channel is the smallest, indicating that the uplink dedicated control channel requires the largest transmit power, and the terminal transmits the signal according to the maximum transmit power to ensure that the signals of other uplink dedicated control channels can be correctly received by the receiver.

Further, the processor 602 is specifically configured to increase a value of the SIR target of the terminal when the pilot BER is greater than the target pilot BER; wherein, the manner of increasing the value of the SIR target may be multiple For example, you can increase the value of the SIR target by at least one step, or straight The value of the SIR target is increased to a certain value, and the size of the step can be set according to actual needs; or

When the pilot BER is smaller than the target pilot BER, the value of the SIR target of the terminal is decreased. The value of the SIR target may be reduced. For example, the value of the SIR target may be decreased. At least one step, or directly reduce the value of the SIR target to a certain value, the size of the step can be set according to actual needs; or,

When the pilot BER is equal to the target pilot BER, the value of the SIR target of the terminal is kept unchanged.

Further, the processor 602 is further configured to compare a BLER of the uplink data channel of the terminal with a BLER of the target BLER corresponding to the terminal according to a comparison result between the pilot BER and the pilot BER of the target pilot BER. Adjust the SIR target of the above terminal.

Further, the processor 602 is configured to increase the value of the SIR target of the terminal when determining, according to the comparison result of the pilot BER and the BLER comparison result, that the value of the SIR target of the terminal is increased; or

When it is determined that the value of the SIR target of the terminal is reduced according to the comparison result of the pilot BER and the BLER comparison result, the value of the SIR target of the terminal is decreased; or

When the comparison result between the pilot BER comparison result and the BLER comparison result is performed, determining to increase the value of the SIR target of the terminal, and determining, according to another comparison result, decreasing the value of the SIR target of the terminal, or determining to maintain When the value of the target signal to interference ratio of the terminal is unchanged, the value of the SIR target of the terminal is increased; or

And determining, according to the comparison result of the pilot BER comparison result and the BLER comparison result, that the value of the SIR target of the terminal is decreased, and determining, according to another comparison result, that the value of the SIR target of the terminal is kept unchanged, The value of the SIR target of the above terminal does not change.

Further, the processor 602 is configured to: when it is determined according to the pilot BER comparison result, that the value of the SIR target of the terminal needs to be increased by a first adjustment amount, and determine, according to the BLER comparison result, that the SIR of the terminal needs to be When the value of the target is increased by the second adjustment amount, the value of the SIR target of the terminal is increased by a larger of the first adjustment amount and the second adjustment amount; The processor 602 is specifically configured to: when determining, according to the pilot BER comparison result, that the value of the SIR target of the terminal needs to be decreased by a third adjustment amount, and determining, according to the BLER comparison result, that the SIR target of the terminal needs to be When the value is decreased by the fourth adjustment amount, the value of the SIR target of the terminal is decreased by the smaller of the third adjustment amount and the fourth adjustment amount.

Further, the processor 602 is further configured to: after adjusting the SIR target of the terminal, determine a statistical value of the IC gain obtained by the terminal for the first uplink dedicated data channel; and obtain an IC gain according to the first uplink dedicated data channel. The statistic value further adjusts the adjusted SIR target.

It should be noted that, in the network device embodiment provided by the present invention, the interaction between the receiver and the processor and the method, device and device for controlling the outer loop power provided by the embodiment of the present invention are based on The pilot BER of the pilot symbol in the uplink dedicated control channel of the terminal performs uplink outer loop power control, and even when the uplink data channel utilization rate is low, the terminal periodically sends a signal to the network side through the uplink control channel, and the network The side can perform the outer loop power control in a timely and effective manner based on the quality of the control channel. Compared with the uplink outer loop power control based on the BLER of the data channel in the prior art, the prior art solves the problem that when the uplink data channel utilization rate is low, The outer loop power control is performed based on the quality of the data channel, so that the SIR target adjustment period is long, and the transmission power of the terminal cannot be adjusted in time and effectively.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of one or more computer program products embodied on a computer-usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It should be understood that each of the processes and/or blocks in the flowcharts and/or block diagrams, and the flow in the flowcharts and/or block diagrams can be implemented by computer program instructions. And/or a combination of boxes. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the < Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and modifications The spirit and scope of the embodiments of the present invention are departed. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims

Rights request

1. An outer loop power control method, characterized by including:

Determine the pilot bit error rate BER of the pilot symbols in the uplink dedicated control channel of the terminal;

Compare the determined pilot BER with a target pilot BER corresponding to the terminal; and adjust the target signal of the terminal based on at least a pilot BER comparison result between the pilot BER and the target pilot BER. Dry than.

2. The method of claim 1, wherein determining the target pilot BER corresponding to the terminal includes:

Determine at least one uplink dedicated control channel;

According to the determined target pilot BER corresponding to the uplink dedicated control channel, the target pilot BER corresponding to the terminal is determined.

3. The method according to claim 2, characterized in that, when the determined uplink dedicated control channel is an uplink dedicated control channel with pilot symbols, and according to the predetermined uplink dedicated control channel except pilot symbols, The first transmission quality index value of the first domain outside the determined uplink dedicated control channel determines the target pilot BER corresponding to the determined uplink dedicated control channel, or, when the determined uplink dedicated control channel is an uplink dedicated control channel without pilot symbols, by The target pilot BER corresponding to the determined uplink dedicated control channel is determined in the following manner:

When the interference cancellation gain is not obtained for the determined uplink dedicated control channel, the first transmission quality index value of the first domain in the determined uplink dedicated control channel according to statistics, and the uplink dedicated control with pilot symbols The corresponding relationship between the pilot BER of the pilot symbols in the channel determines the pilot BER corresponding to the preset first transmission quality index value of the first domain in the determined uplink dedicated control channel;

The pilot BER corresponding to the preset first transmission quality index value of the first domain is determined as the target pilot BER corresponding to the determined uplink dedicated control channel.

4. The method of claim 2, wherein when the determined uplink dedicated control channel is an uplink dedicated control channel with pilot symbols, and according to the determined uplink dedicated control channel, The preset first transmission quality index value of the first domain except the pilot symbols determines the target pilot BER corresponding to the determined uplink dedicated control channel, or when the determined uplink dedicated control channel does not have a pilot symbol The uplink dedicated control channel determines the target pilot BER corresponding to the determined uplink dedicated control channel in the following manner:

When the interference cancellation gain is obtained for the determined uplink dedicated control channel, based on the statistics of the actual measured signal-to-interference ratio, the first transmission quality index value of the first domain in the determined uplink dedicated control channel, and the presence of pilots The corresponding relationship between the pilot symbol and the pilot BER of the pilot symbol in the uplink dedicated control channel of the symbol is determined to correspond to the preset first transmission quality index value of the first domain in the determined uplink dedicated control channel. Actual measured signal-to-interference ratio;

Use the corresponding actual measured signal-to-interference ratio value to subtract the statistical value of the Gan's cancellation gain obtained from the determined uplink dedicated control channel to obtain the adjusted signal-to-interference ratio;

According to the corresponding relationship between the three, the corresponding relationship between the pilot BER of the pilot symbol in the uplink dedicated control channel in which the pilot symbol exists and the actual measured signal-to-interference ratio, it is determined that the adjusted The signal-to-interference ratio corresponds to the pilot BER;

The pilot BER corresponding to the adjusted signal-to-interference ratio is determined as the target pilot BER corresponding to the determined uplink dedicated control channel.

5. The method according to any one of claims 2 to 4, characterized in that determining at least one uplink dedicated control channel includes:

Determine the first uplink dedicated control channel;

Determining the target pilot BER corresponding to the terminal according to the determined target pilot BER corresponding to the uplink dedicated control channel includes:

The determined target pilot BER corresponding to the first uplink dedicated control channel is determined as the target pilot BER corresponding to the terminal.

6. The method according to any one of claims 2 to 4, characterized in that determining at least one uplink dedicated control channel includes:

Determine at least two uplink dedicated control channels respectively;

Determine the terminal according to the determined target pilot BER corresponding to the uplink dedicated control channel The corresponding target pilot BER includes:

Determine the target pilot BER corresponding to at least two determined uplink dedicated control channels respectively, and determine the minimum value among the target pilot BER corresponding to the at least two determined uplink dedicated control channels as the target corresponding to the terminal Pilot BER.

7. The method according to any one of claims 1 to 6, characterized in that: adjusting the target signal-to-interference ratio of the terminal according to the pilot BER comparison result between the pilot BER and the target pilot BER, include:

When the pilot BER is greater than the target pilot BER, increase the value of the target signal-to-interference ratio of the terminal; or,

When the pilot BER is less than the target pilot BER, reduce the value of the target signal-to-interference ratio of the terminal; or,

When the pilot BER is equal to the target pilot BER, the value of the target signal-to-interference ratio of the terminal is kept unchanged.

8. The method according to any one of claims 1 to 7, characterized in that: adjusting the target signal of the terminal based on at least a pilot BER comparison result between the pilot BER and the target pilot BER. dry ratio, including:

Adjust the terminal according to the comparison result between the pilot BER and the target pilot BER, and the comparison result between the block error rate BLER of the uplink data channel of the terminal and the target BLER corresponding to the terminal. The target signal-to-interference ratio.

9. The method of claim 8, wherein adjusting the target signal-to-interference ratio of the terminal according to the pilot BER comparison result and the BLER comparison result includes:

When it is determined to increase the value of the target signal-to-interference ratio of the terminal according to the pilot BER comparison result and the BLER comparison result, increase the value of the target signal-to-interference ratio of the terminal; or,

When it is determined to reduce the value of the target signal-to-interference ratio of the terminal according to the pilot BER comparison result and the BLER comparison result, reduce the value of the target signal-to-interference ratio of the terminal; or,

When it is determined to increase the value of the target signal-to-interference ratio of the terminal according to one of the comparison results of the pilot BER comparison result and the BLER comparison result, it is determined to decrease the value according to the other comparison result. The value of the target signal-to-interference ratio of the terminal, or when it is determined to keep the value of the target signal-to-interference ratio of the terminal unchanged, increase the value of the target signal-to-interference ratio of the terminal; or,

When a value to reduce the target signal-to-interference ratio of the terminal is determined according to one of the comparison results of the pilot BER comparison result and the BLER comparison result, and it is determined to maintain the target signal-to-interference ratio of the terminal according to the other comparison result. When the value of the ratio remains unchanged, the value of the target signal-to-interference ratio of the terminal is kept unchanged.

10. The method of claim 9, wherein when it is determined to increase the value of the target signal-to-interference ratio of the terminal according to the pilot BER comparison result and the BLER comparison result, increase the Describe the value of the target signal-to-interference ratio of the terminal, specifically including:

When, according to the pilot BER comparison result, it is determined that the value of the target signal-to-interference ratio of the terminal needs to be increased by a first adjustment amount, and according to the BLER comparison result, it is determined that the value of the target signal-to-interference ratio of the terminal needs to be increased. When the value increases by the second adjustment amount, increase the value of the target signal-to-interference ratio of the terminal by the larger value of the first adjustment amount and the second adjustment amount;

When it is determined to reduce the value of the target signal-to-interference ratio of the terminal according to the pilot BER comparison result and the BLER comparison result, reducing the value of the target signal-to-interference ratio of the terminal specifically includes: When according to The pilot BER comparison result determines that the value of the target signal-to-interference ratio of the terminal needs to be reduced by a third adjustment amount, and based on the BLER comparison result, it is determined that the value of the target signal-to-interference ratio of the terminal needs to be reduced. When the fourth adjustment amount is small, the value of the target signal-to-interference ratio of the terminal is reduced by the smaller value of the third adjustment amount and the fourth adjustment amount.

11. The method according to any one of claims 1 to 10, characterized in that, after adjusting the target signal-to-interference ratio of the terminal, it further includes:

Determine the statistical value of the interference cancellation gain obtained by the terminal for the first uplink dedicated data channel;

The adjusted target signal-to-interference ratio is further adjusted according to the statistical value of the interference cancellation gain obtained from the first uplink dedicated data channel.

12. An outer loop power control device, characterized in that it includes:

Determining module, used to determine the pilot bit error rate BER of the pilot symbols in the uplink dedicated control channel of the terminal; A comparison module, configured to compare the pilot BER determined by the determination module with the target pilot BER corresponding to the terminal;

An adjustment module, configured to adjust the target signal-to-interference ratio of the terminal based on at least a pilot BER comparison result between the pilot BER and the target pilot BER determined by the comparison module.

13. The device according to claim 12, wherein the comparison module includes a first determination unit and a second determination unit;

The first determining unit is used to determine at least one uplink dedicated control channel;

The second determining unit is configured to determine the target pilot BER corresponding to the terminal according to the target pilot BER corresponding to the uplink dedicated control channel determined by the first determining unit.

14. The device according to claim 13, wherein the second determination unit includes a first determination sub-unit and a second determination sub-unit;

The first determining subunit is configured to: when the uplink dedicated control channel determined by the first determining unit is an uplink dedicated control channel with pilot symbols, and according to the preset preset in the determined uplink dedicated control channel except pilot symbols, The first transmission quality index value in the first domain outside the symbol determines the target pilot BER corresponding to the determined uplink dedicated control channel, or, when the uplink dedicated control channel determined by the first determining unit does not have a pilot symbol The uplink dedicated control channel determines whether interference cancellation gain can be obtained for the uplink dedicated control channel determined by the first determining unit;

The second determination subunit is configured to, when the first determination subunit determines that the interference cancellation gain is not obtained for the uplink dedicated control channel determined by the first determination unit, based on statistics determined by the first determination unit The corresponding relationship between the first transmission quality index value of the first domain in the uplink dedicated control channel and the pilot BER of the pilot symbol in the uplink dedicated control channel where the pilot symbol exists is determined to be consistent with the preset The pilot BER corresponding to the first transmission quality index value of the first domain in the uplink dedicated control channel determined by the first determining unit; The pilot corresponding to the preset first transmission quality index value of the first domain The BER is determined as the target pilot BER corresponding to the uplink dedicated control channel determined by the first determining unit.

15. The device according to claim 13, wherein the second determination unit includes a third determination sub-unit and a fourth determination sub-unit; The third determination subunit is used to determine when the uplink dedicated control channel determined by the first determining unit is an uplink dedicated control channel with pilot symbols, and according to the preset preset in the determined uplink dedicated control channel except pilot symbols. The first transmission quality index value in the first domain outside the symbol determines the target pilot BER corresponding to the determined uplink dedicated control channel, or, when the uplink dedicated control channel determined by the first determining unit does not have a pilot symbol The uplink dedicated control channel determines whether interference cancellation gain can be obtained for the uplink dedicated control channel determined by the first determining unit;

The fourth determination subunit is configured to, when the third determination subunit determines that interference cancellation gain is obtained for the uplink dedicated control channel determined by the first determination unit, based on the statistics of the actual measured signal-to-interference ratio, the third The correspondence between the first transmission quality index value of the first domain in the uplink dedicated control channel determined by a determining unit and the pilot BER of the pilot symbol in the uplink dedicated control channel where the pilot symbol exists is determined. The actual measured signal-to-interference ratio corresponding to the preset first transmission quality index value of the first domain in the uplink dedicated control channel determined by the first determining unit; use the corresponding actual measured signal-to-interference ratio value to subtract The statistical value of the interference cancellation gain obtained by the uplink dedicated control channel determined by the first determining unit is used to obtain the adjusted signal-to-interference ratio; according to the correspondence between the three, the uplink dedicated control channel with pilot symbols is Control the correspondence between the pilot BER of the pilot symbols in the channel and the actual measured signal-to-interference ratio, determine the pilot BER corresponding to the adjusted signal-to-interference ratio; and determine the pilot BER corresponding to the adjusted signal-to-interference ratio The pilot BER is determined as the target pilot BER corresponding to the uplink dedicated control channel determined by the first determining unit.

16. The device according to any one of claims 13-15, characterized in that the first determining unit is used to determine the first uplink dedicated control channel;

The second determining unit is configured to determine the target pilot BER corresponding to the first uplink dedicated control channel determined by the first determining unit as the target pilot BER corresponding to the terminal.

17. The device according to any one of claims 13-15, characterized in that the first determining unit is used to determine at least two uplink dedicated control channels respectively;

The second determination unit is configured to respectively determine the target pilot BER corresponding to the at least two uplink dedicated control channels determined by the first determining unit, and set the target pilot BER corresponding to the at least two determined uplink dedicated control channels respectively. The minimum value in the pilot BER is determined as the target pilot corresponding to the terminal BER.

18. The device according to any one of claims 12 to 17, wherein the adjustment module is configured to increase the pilot BER when the comparison module determines that the pilot BER is greater than the target pilot BER. The value of the terminal’s target signal-to-interference ratio; or,

When the comparison module determines that the pilot BER is less than the target pilot BER, reduce the value of the target signal-to-interference ratio of the terminal; or,

When the comparison module determines that the pilot BER is equal to the target pilot BER, the value of the target signal-to-interference ratio of the terminal is kept unchanged.

19. The device according to any one of claims 12 to 18, characterized in that the determination module is also used to determine the block error rate BLER of the uplink data channel of the terminal;

The comparison module is also used to compare the BLER determined by the determination module with the target BLER corresponding to the terminal, and obtain a BLER comparison result;

The adjustment module is configured to compare the pilot BER between the pilot BER determined by the comparison module and the target pilot BER, and the BLER between the BLER determined by the comparison module and the target BLER. The comparison result is used to adjust the target signal-to-interference ratio of the terminal.

20. The device according to claim 19, wherein the adjustment module is configured to determine to increase the size of the terminal when both the pilot BER comparison result and the BLER comparison result determined by the comparison module are When the value of the target signal-to-interference ratio is, increase the value of the target signal-to-interference ratio of the terminal; or, when the pilot BER comparison result and the BLER comparison result determined according to the comparison module, both determine to decrease When the value of the target signal-to-interference ratio of the terminal is lower than the value of the target signal-to-interference ratio of the terminal; or,

When a value to increase the target signal-to-interference ratio of the terminal is determined according to one of the comparison results of the pilot BER comparison result and the BLER comparison result determined by the comparison module, based on the other one determined by the comparison module Compare the results and determine to reduce the value of the target signal-to-interference ratio of the terminal, or when determining to keep the value of the target signal-to-interference ratio unchanged, increase the value of the target signal-to-interference ratio of the terminal; or,

When the pilot BER comparison result and the BLER comparison result determined by the comparison module According to one of the comparison results among the results, it is determined to reduce the value of the target signal-to-interference ratio of the terminal. According to another comparison result determined by the comparison module, when it is determined to keep the value of the target signal-to-interference ratio of the terminal unchanged, keep The value of the target signal-to-interference ratio of the terminal remains unchanged.

21. The device according to claim 20, wherein the adjustment module is configured to determine the value of the target signal-to-interference ratio of the terminal that needs to be adjusted according to the pilot BER comparison result determined by the comparison module. Increase the first adjustment amount, and according to the BLER comparison result determined by the comparison module, when it is determined that the value of the target signal-to-interference ratio of the terminal needs to be increased by the second adjustment amount, increase the target signal-to-interference ratio of the terminal The value of the ratio increases by the larger value of the first adjustment amount and the second adjustment amount;

When it is determined that the value of the target signal-to-interference ratio of the terminal needs to be reduced by a third adjustment amount according to the pilot BER comparison result determined by the comparison module, and then based on the BLER comparison determined by the comparison module As a result, when it is determined that the value of the target signal-to-interference ratio of the terminal needs to be reduced by a fourth adjustment amount, the value of the target signal-to-interference ratio of the terminal is reduced by one of the third adjustment amount and the fourth adjustment amount. smaller value.

22. The device according to any one of claims 12 to 21, characterized in that, the adjustment module is further configured to determine, after adjusting the target signal-to-interference ratio of the terminal, the terminal's response to the first uplink dedicated data channel. The obtained statistical value of the interference cancellation gain; further adjust the adjusted target signal-to-interference ratio according to the obtained statistical value of the interference·ί cancellation gain of the first uplink dedicated data channel.

23. A network device, characterized by including the outer loop power control device according to any one of claims 12-22.

24. A network device, characterized by: including:

A receiver, used to receive information transmitted in the uplink dedicated control channel of the terminal;

A processor, configured to determine the pilot bit error rate BER of the pilot symbols in the uplink dedicated control channel of the terminal received by the receiver; combine the determined pilot BER with the target pilot BER corresponding to the terminal Compare; and adjust the target signal-to-interference ratio of the terminal based on at least a pilot BER comparison result between the pilot BER and the target pilot BER.

25. The network device according to claim 24, wherein the processor is configured to determine at least one uplink dedicated control channel; frequency BER, determine the target pilot BER corresponding to the terminal.

26. The network device according to claim 25, wherein the processor is configured to: When the determined uplink dedicated control channel is an uplink dedicated control channel with pilot symbols, and according to the determined uplink dedicated control channel The first transmission quality index value of the first domain except the pilot symbols preset in determines the target pilot BER corresponding to the determined uplink dedicated control channel, or, when the determined uplink dedicated control channel does not have a pilot Symbol uplink dedicated control channel, determine the target pilot BER corresponding to the determined uplink dedicated control channel in the following manner:

When the interference cancellation gain is not obtained for the determined uplink dedicated control channel, the first transmission quality index value of the first domain in the determined uplink dedicated control channel according to statistics, and the uplink dedicated control with pilot symbols The corresponding relationship between the pilot BER of the pilot symbols in the channel determines the pilot BER corresponding to the preset first transmission quality index value of the first domain in the determined uplink dedicated control channel; The pilot BER corresponding to the preset first transmission quality index value of the first domain is determined as the target pilot BER corresponding to the determined uplink dedicated control channel.

27. The network device according to claim 25, wherein the processor is configured to: When the determined uplink dedicated control channel is an uplink dedicated control channel with pilot symbols, and according to the determined uplink dedicated control channel The first transmission quality index value of the first domain except the pilot symbols preset in determines the target pilot BER corresponding to the determined uplink dedicated control channel, or, when the determined uplink dedicated control channel does not have a pilot Symbol uplink dedicated control channel, determine the target pilot BER corresponding to the determined uplink dedicated control channel in the following manner:

When the interference cancellation gain is obtained for the determined uplink dedicated control channel, based on the statistics of the actual measured signal-to-interference ratio, the first transmission quality index value of the first domain in the determined uplink dedicated control channel, and the presence of pilots The corresponding relationship between the pilot symbol and the pilot BER of the pilot symbol in the uplink dedicated control channel of the symbol is determined to correspond to the preset first transmission quality index value of the first domain in the determined uplink dedicated control channel. Actual measured signal-to-interference ratio; Use the corresponding actual measured signal-to-interference ratio value to subtract the statistical value of the interference·ί cancellation gain obtained from the determined uplink dedicated control channel to obtain the adjusted signal-to-interference ratio; According to the Among the correspondences between the above three, the correspondence between the pilot BER of the pilot symbols in the uplink dedicated control channel where pilot symbols exist and the actual measured signal-to-interference ratio relationship, determine the pilot BER corresponding to the adjusted signal-to-interference ratio; determine the pilot BER corresponding to the adjusted signal-to-interference ratio as the target pilot BER corresponding to the determined uplink dedicated control channel.

28. The network device according to any one of claims 25 to 27, wherein the processor is configured to determine a first uplink dedicated control channel; and determine the target pilot corresponding to the determined first uplink dedicated control channel. BER is determined as the target pilot BER corresponding to the terminal.

29. The network device according to any one of claims 25 to 27, wherein the processor is configured to determine at least two uplink dedicated control channels respectively; and determine targets corresponding to at least two determined uplink dedicated control channels respectively. pilot BER, and determine the minimum value among the target pilot BER corresponding to the at least two determined uplink dedicated control channels as the target pilot BER corresponding to the terminal.

30. The network device according to any one of claims 24 to 29, wherein the processor is configured to increase the target of the terminal when the pilot BER is greater than the target pilot BER. The value of the signal-to-interference ratio; or,

31. The network device according to any one of claims 24 to 30, wherein the processor is further configured to compare a pilot BER between the pilot BER and the target pilot BER, and Based on the comparison result, the target signal-to-interference ratio of the terminal is adjusted.

32. The network device according to claim 31, wherein the processor is configured to determine to increase the target signal interference of the terminal according to the pilot BER comparison result and the BLER comparison result. When the value of the ratio is greater than the value of the target signal-to-interference ratio, increase the value of the target signal-to-interference ratio of the terminal; or,

When it is determined to reduce the value of the target signal-to-interference ratio of the terminal according to the pilot BER comparison result and the BLER comparison result, reduce the value of the target signal-to-interference ratio of the terminal; or, When it is determined to increase the target signal-to-interference ratio of the terminal according to one of the comparison results of the pilot BER comparison result and the BLER comparison result, it is determined to decrease the target signal-to-interference ratio of the terminal according to the other comparison result. or, when determining to keep the value of the target signal-to-interference ratio of the terminal unchanged, increase the value of the target signal-to-interference ratio of the terminal; or,

33. The network device according to claim 32, wherein the processor is configured to determine, according to the pilot BER comparison result, that it is necessary to increase the target signal-to-interference ratio value of the terminal by a first The adjustment amount, and according to the BLER comparison result, when it is determined that the value of the target signal-to-interference ratio of the terminal needs to be increased by the second adjustment amount, the value of the target signal-to-interference ratio of the terminal is increased by the first adjustment amount. The larger value between the amount and the second adjustment amount;

When, according to the pilot BER comparison result, it is determined that the value of the target signal-to-interference ratio of the terminal needs to be reduced by a third adjustment amount, and according to the BLER comparison result, it is determined that the value of the target signal-to-interference ratio of the terminal needs to be reduced. When the value is reduced by the fourth adjustment amount, the value of the target signal-to-interference ratio of the terminal is reduced by the smaller value of the third adjustment amount and the fourth adjustment amount.

34. The network device according to any one of claims 24 to 33, wherein the processor is further configured to determine, after adjusting the target signal-to-interference ratio of the terminal, the terminal's first uplink dedicated The statistical value of the interference cancellation gain obtained by the data channel; the adjusted target signal-to-interference ratio is further adjusted according to the statistical value of the interference·ί's cancellation gain obtained by the first uplink dedicated data channel.