WO2016177110A1

WO2016177110A1 - Uplink interference control method and device, and computer readable storage medium

Info

Publication number: WO2016177110A1
Application number: PCT/CN2016/076342
Authority: WO
Inventors: 付灿; 陈豪; 林洁; 李雪林
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-11-10
Filing date: 2016-03-15
Publication date: 2016-11-10
Also published as: CN106686713A; CN106686713B

Abstract

Disclosed are an uplink interference control method and device, and computer readable storage medium. The method comprises: acquiring a network parameter of each cell; estimating, according to the network parameter, whether a difference between transmission powers before and after a cell switching is greater than a preset threshold when a user equipment (UE) switches between the cells; and when the estimated difference between the transmission powers is greater than the preset threshold, enabling the difference between the transmission powers of the UE before and after the cell switching to be less than the preset threshold by adjusting the network parameter, so as to control the uplink interference of the UE on the cell.

Description

Uplink interference control method, device and computer readable storage medium

Technical field

The present invention relates to the field of communications technologies, and in particular, to an uplink interference control method and apparatus, and a computer readable storage medium.

Background technique

With the development of wireless communication technologies, in the mobile communication network, in order to meet applications in special situations, such as blind spots and hotspots, there is a state in which macro micro cells cooperate with each other. The macro cell covers a large area, generally covers a radius of 1Km to 30Km, and the transmission power is above 40dBm. It is mainly installed at a high place and is used for wide coverage. The micro-cell covers a small area, generally covers a radius of 10m to 300m, and has a small transmission power, generally less than 30dBm, and is mainly used for indoor coverage, such as shopping malls, hotels, and commercial buildings. In today's society, people are increasingly demanding data services, which puts higher demands on network capacity and download rate. Microcells play a major role in this regard.

In the macro-micro-coexistence network, if the user equipment (User Equipment, UE) works in the macro cell in the macro-micro-switching area and the macro-micro-coexistence area, it is generally far away from the macro base station, and the UE transmits a large power. The micro base station generates strong interference on the uplink, which causes the micro-cell service overload/capacity to decrease and affects other users' access.

Summary of the invention

The technical problem to be solved by the embodiments of the present invention is to provide an uplink interference control method, apparatus, and computer readable storage medium, which are used to solve the macro and micro area uplink and downlink indicators when the macro cell and the micro cell are mixed in the prior art. The uplink interference caused by the imbalance causes the micro-cell service to be overloaded and the capacity to be reduced, which affects the access of other users.

In one aspect, an embodiment of the present invention provides an uplink interference control method, including: acquiring each small The network parameter of the area is determined according to the network parameter, when the user equipment performs cell handover, whether the difference between the transmit power before and after the handover is greater than a preset threshold; and the case where the difference between the transmit powers is greater than the preset threshold is estimated And adjusting, by the network parameter, the difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold, to control uplink interference of the user equipment to the cell.

Optionally, the network parameters include: a base station uplink receiving bottom noise and a base station downlink configuration power.

Optionally, the determining, according to the network parameter, that when the user equipment performs cell handover, whether the difference between the transmit power before and after the handover is greater than a preset threshold includes: if the balance parameter between the two cells is less than a preset threshold, the estimation is The difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold; if the balance parameter between the two cells is greater than or equal to the preset threshold, determining that the user equipment performs the transmit power before and after the cell handover The difference is greater than or equal to the preset threshold; wherein the balance parameter is a sum of an uplink receive bottom noise and a downlink configuration power of one cell minus a sum of an uplink receive bottom noise and a downlink configuration power of another cell, and the obtained Difference.

Optionally, the adjusting, by the network parameter, the difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold, including: adjusting, according to the balance parameter, a base station uplink receiving noise of each cell So that the difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold.

Optionally, the adjusting the base station uplink receiving noise of each cell according to the balance parameter comprises: adjusting a noise coefficient through an analog circuit or adding digital noise in a digital domain according to the balance parameter.

Optionally, each of the cells includes a macro cell and a micro cell.

On the other hand, an embodiment of the present invention further provides an uplink interference control apparatus, including: an acquiring unit, configured to acquire network parameters of each cell; and an estimating unit, configured to: when the user equipment performs cell switching according to the network parameter estimation When the difference between the transmit powers before and after the switch is greater than the preset threshold, the adjusting unit is configured to estimate, at the estimating unit, that the difference between the transmit powers is greater than the preset threshold In the case of the value, the user equipment is configured to control the uplink interference of the user equipment to the cell by using the network device to adjust the difference between the transmit power of the user equipment before and after the cell handover.

Optionally, the estimating unit is specifically configured to: if the balance parameter between the two cells is less than a preset threshold, estimate that a difference between the transmit powers before and after the user equipment performs cell handover is less than the preset threshold; If the balance parameter between the two cells is greater than or equal to the preset threshold, determining that the difference between the transmit power of the user equipment before and after the cell handover is greater than or equal to the preset threshold; wherein the balance parameter is one of The sum of the uplink reception bottom noise and the downlink configuration power of the cell minus the sum of the uplink reception bottom noise and the downlink configuration power of the other cell, and the difference is obtained.

Optionally, the adjusting unit is configured to: adjust, according to the balance parameter, a base station uplink receiving noise of each cell, so that a difference between a transmit power of the user equipment before and after a cell handover is less than the preset threshold. .

Optionally, the adjusting unit is specifically configured to adjust a noise figure through an analog circuit or add digital noise in a digital domain according to the balance parameter.

Optionally, each of the cells includes a macro cell and a micro cell.

An embodiment of the present invention provides a computer readable storage medium, the storage medium comprising a set of instructions that, when executed, cause at least one processor to perform operations including:

Acquiring the network parameters of each cell; estimating, according to the network parameter, whether the difference between the transmit power before and after the handover is greater than a preset threshold when the user equipment performs cell handover; and estimating that the difference between the transmit powers is greater than the preset threshold In the case of adjusting the network parameters, the difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold, so as to control the uplink interference of the user equipment to the cell.

The uplink interference control method and device and the computer readable storage medium provided by the embodiments of the present invention are capable of acquiring network parameters of each cell, and then estimating, according to the network parameters, whether the difference between the transmit power before and after the handover is performed when the user equipment performs cell handover. Greater than a preset threshold, the estimated If the difference between the transmit powers is greater than the preset threshold, adjusting the network parameters, the difference between the transmit powers of the user equipment before and after the cell handover is less than the preset threshold, to control the user equipment to the cell Uplink interference. In this way, when the macro cell is mixed with the network, the network parameters of each cell can be adjusted so that the difference between the transmit power of the user equipment before and after the cell handover is less than a preset threshold, that is, the user equipment transmits in the macro cell and the micro cell. The power is suitable for the cell base station. Therefore, the transmit power does not excessively reduce the capacity of the micro cell, thereby causing excessive interference to other user equipments in the micro cell, and effectively improving the communication of each cell in the hybrid network. service quality.

DRAWINGS

FIG. 1 is a flowchart of an uplink interference control method according to an embodiment of the present invention;

2 is a schematic diagram of a macro cell and a micro cell network in the embodiment of the present invention;

3 is a schematic structural diagram of a base station in an uplink interference control method according to an embodiment of the present invention;

4 is a schematic diagram of adjusting a receiver noise coefficient by an analog circuit in an uplink interference control method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of adjusting a receiver noise coefficient by digital signal processing in an uplink interference control method according to an embodiment of the present invention; FIG.

6 is a detailed flowchart of an uplink interference control method according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an uplink interference control apparatus according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIG. 1 , an embodiment of the present invention provides an uplink interference control method, including:

S11. Acquire network parameters of each cell.

S12, according to the network parameter, when the user equipment performs cell handover, whether the difference between the transmit power before and after the handover is greater than a preset threshold;

S13, in a case that the difference between the transmit powers is greater than the preset threshold, by adjusting the network parameter, the difference between the transmit powers of the user equipment before and after the cell handover is less than the preset threshold, Controlling uplink interference of the user equipment to the cell.

The uplink interference control method provided by the embodiment of the present invention can obtain network parameters of each cell, and then predict, according to the network parameter, whether the difference between the transmit power before and after the handover is greater than a preset threshold when the user equipment performs cell handover, If the difference between the transmit powers is greater than the preset threshold, adjusting the network parameters, the difference between the transmit powers of the user equipment before and after the cell handover is less than the preset threshold, to control the user equipment. Uplink interference to the cell. In this way, when the macro cell is mixed with the network, the network parameters of each cell can be adjusted so that the difference between the transmit power of the user equipment before and after the cell handover is less than a preset threshold, that is, the user equipment transmits in the macro cell and the micro cell. The power is suitable for the cell base station. Therefore, the transmit power does not excessively reduce the capacity of the micro cell, thereby causing excessive interference to other user equipments in the micro cell, and effectively improving the communication of each cell in the hybrid network. service quality.

Specifically, in step S11, the network parameters may include the base station uplink receiving noise and the base station downlink configuration power, and the parameters may be obtained by using an operation and maintenance center (OMC) of the network management system.

Specifically, in step S12, when the user equipment performs cell handover according to the network parameter, whether the difference between the transmit power before and after the handover is greater than a preset threshold includes:

If the balance parameter between the two cells is less than the preset threshold, the difference between the transmit powers before and after the cell handover by the user equipment is estimated to be less than the preset threshold;

If the balance parameter between the two cells is greater than or equal to the preset threshold, determining that the difference between the transmit power of the user equipment before and after the cell handover is greater than or equal to the preset threshold;

The balance parameter is an uplink receiving bottom noise and a downlink configuration function of one of the cells. The sum of the rate is subtracted from the sum of the uplink receive bottom noise and the downlink configuration power of the other cell, and the difference is obtained.

Optionally, each cell includes a macro cell and a micro cell, and each cell in the network may be a combination of a macro cell covered by the macro base station and a micro cell covered by the micro base station.

It should be noted that the 3GPP protocol classifies the base station, and the transmission power is greater than 38 dBm, which is defined as a macro base station, and less than 24 dBm is a micro base station. Similarly, the uplink sensitivity index is also required, the sensitivity of the macro base station is high, and the sensitivity of the micro base station is low. However, for both the user and the user, whether it is a macro station or a micro station, the higher the sensitivity, the better. The higher the sensitivity, the lower the mobile phone's transmit power, the farther the coverage distance is, the larger the capacity, that is, the greener and more environmentally friendly.

FIG. 2 is a schematic diagram of an application scenario in which macro-micro-networking is applied to solve macro-macro imbalance in an embodiment of the present invention. FIG. 2 shows uplink and downlink related parameters of a macro base station and a micro base station, which are typical parameter configurations in a current mobile communication base station, to facilitate better description of the concept of macro-micro imbalance, and macro-macro imbalance influences.

Specifically, the strength of the UE transmit power is related to the signal-to-noise ratio of the uplink received signal of the base station, and the signal-to-noise ratio of the uplink received signal of the base station is related to the path loss and the noise figure of the base station receiver, and can be expressed by the following formula:

NodeBSNR=UESignal-FL-NodeBNoiseFloor (Formula 1)

The NodeBSNR represents the signal to noise ratio of the uplink received signal of the base station.

Among them, UESignal represents the UE transmit power.

Among them, FL represents the road damage.

Among them, NodeBNoiseFloor represents the base station receiver noise, which can be approximated by thermal noise (KTB) and base station receiver noise figure (NodeBNF):

NodeBNoiseFloor=KTB+NodeBNF (Equation 2)

Similarly, the signal-to-noise ratio of the received signal of the UE is related to the path loss and the noise figure of the UE receiver. The approximate expression can be expressed by:

UESNR=NodeBSignal-FL-UENoiseFloor (Equation 3)

The UESNR represents the signal to noise ratio of the received signal of the UE, and the NodeBSignal represents the base station transmit power. FL stands for road damage.

UENoiseFloor stands for UE receiver noise floor and can be approximated by thermal noise (KTB) and UE receiver noise figure (UENF):

UENoiseFloor=KTB+UENF (Equation 4)

Obtain FL according to the formula (Formula 3), and then bring in the formula (Formula 1) to obtain:

UESignal=NodeBSNR+NodeBNoiseFloor+(NodeBSignal-UESNR-UENoiseFloor) (Equation 5)

For the coexistence networking between the micro station and the macro station, if the UE wants to smoothly transition in the macro-micro handover, and does not bring uplink interference, the UE needs to switch the macro-micro region to switch the difference between the transmit power before and after the handover is less than the preset threshold. Since the macro base station and the micro base station have the same demodulation capability, the two base stations have the same signal-to-noise ratio, and the parameters of the macro station and the micro station are substituted into the equation 5 respectively, and the conditions for the smooth transition are compared:

A=MarcoSignal+MarcoNoiseSignal-(Picosignal+PicoNoiseFloor)<T(Formula 6)

Among them, MarcoSignal and MacroNoiseFloor represent the downlink transmit power and uplink receive noise of the macro base station. PicoSignal and PicoNoiseFloor represent the downlink transmit power and uplink receive noise of the micro base station. The balance parameter A=MarcoSignal+MarcoNoiseSignal-(Picosignal+PicoNoiseFloor), T is a preset threshold.

Specifically, in step S13, the base station uplink receiving noise may be adjusted according to the balance parameter, so that the difference between the transmit power of the user equipment before and after the cell handover is less than a preset threshold, thereby controlling the uplink of the user equipment to the cell. interference. Optionally, the adjusting the base station uplink receiving noise of each cell according to the balance parameter comprises: adjusting a noise coefficient through an analog circuit or adding digital noise in a digital domain according to the balance parameter.

For example, in the scenario shown in Figure 2, the downlink power configuration of each cell can be obtained according to the cell configuration in the network management system, such as P1, P2, ... Pn, and the uplink noise floor of each cell is obtained from the OMC network management background, such as N1, N2...N3. According to Equation 6, the balance parameter A=(P _x +N _x )-(P _y +N _y ) between any two cells is obtained. By taking the parameters described in Fig. 2 into Equation 6, the equilibrium parameter A = 43-106 - (17-96) = 16 (dB) can be calculated. If the preset threshold is 5 dB, then A is greater than 5, and it is determined that the parameter configuration of the macro cell and the micro cell is unbalanced at this time. Optionally, in some embodiments of the present invention, the preset threshold may also be set to be small, so that the parameter configuration of the user equipment is balanced in the two cells if the balance parameter A is equal to 0.

If it is necessary to balance it, even if Equation 6 is established, it can be realized by adjusting the uplink reception noise of the micro base station. The uplink noise adjustment amount C of the micro base station is equal to the balance parameter A, and the parameter is configured in the micro cell through the network management background. After the parameter is configured, the receiving bottom noise of the micro cell is triggered.

Optionally, the adjustment of the bottom region receiving noise can be implemented by adjusting the noise figure of the radio unit of the base station receiver, or by adding noise in the digital domain.

As shown in FIG. 3, the base station may include a baseband BBU unit, an intermediate unit, and a radio frequency RRU unit. The adjustment of the uplink noise can be adjusted in any one of the above three units. among them:

The baseband processing unit, such as an indoor baseband processing unit (BBU), is used for processing the baseband signal, reporting the received signal to the network management background, and transmitting the power of the network management to the radio frequency processing unit, which can be used in the present invention. The calculation and delivery of the unbalanced parameters are completed, and the uplink receiving noise adjustment is implemented.

The intermediate processing unit performs processing between the baseband signal and the base station signal, such as signal combining, signal dispersion, signal compression and decompression, etc., and can be used to implement uplink receiving noise adjustment in the present invention, and the unit can also be integrated in the baseband processing unit and RF processing unit.

The radio processing unit, such as a radio remote unit (RRU), is used for converting digital to analog signals, receiving signals transmitted by the UE and transmitting signals from the baseband unit, and can be used to implement uplink receiving noise adjustment in the present invention. .

For the three processing units included in the above device, there may be discrete presence, such as a distributed micro base station (see FIG. 3(a)); or may be integrated together, such as an integrated micro base station (see FIG. 3(b)).

Optionally, the adjustment of the uplink noise is mainly divided into two methods, one is to modify the noise coefficient of the receiver in the analog part to adjust the noise floor of the cell, and the other is to incorporate noise in the digital part to adjust the noise floor of the cell. The two methods are described in detail below.

Figure 4 shows the adjustment of the cell floor noise by changing the noise figure of the receiver in the RRU unit. The uplink noise floor of the base station is determined by the noise figure of the receiver, and the relationship between the uplink noise floor and the noise figure is as shown in Equation 2. Therefore, by changing the noise figure of the receiver, the uplink noise adjustment amount C is sent to the CPU control module in the RF processing unit through the network management, and the receiver noise coefficient is adjusted according to the relationship between the noise coefficient and the gain. Among them, the relationship between the noise figure and the gain can be as shown in Equation 7:

(Formula 7)

Where F _i is the noise figure and linear value of the i-th level device on the receiver link.

Where G _j is the gain, linear value of the jth level device on the receiver link.

It should be noted that the noise figure is an inherent parameter of a device and cannot be adjusted. However, the noise figure of the receiver can be realized by adjusting the gain according to Equation 7. First, the uplink noise adjustment amount C is converted into the gain parameter D that the base station needs to adjust, and the gain of the gain module is adjusted accordingly to realize the change of the bottom noise of the uplink base station cell, so that the macro micro area is balanced.

Figure 5 shows the noise reduction in the digital part to adjust the noise floor of the cell. This function can be implemented in the baseband processing unit, either in the intermediate processing unit or in the digital part of the RF processing unit. The principle is to superimpose the digital noise signal during the digital transmission of the uplink received signal to change the uplink noise. The network management sends the uplink noise adjustment amount C to the corresponding unit, calculates the noise size to be added according to the C value, adjusts the signal amplitude of the unit noise source through the gain control word E, and the output signal is an uplink signal superimposed with noise. Signal size eventually passes through the net The cell reception power in the background of the pipe is presented.

Figure 6 shows a software control flow chart. As shown in FIG. 6 , after setting the uplink noise adjustment amount, the balance parameter A may be recalculated according to the adjusted configuration parameters. If A is less than the preset threshold T, the uplink noise is adjusted to achieve the desired, otherwise, The balance has not been reached, and the adjustment is continued according to the new C value, and the total number of adjustments is recorded. When the number of adjustments is greater than 2, the detection still fails to meet the expectation, and the uplink noise adjustment of the micro base station is not up to the expected alarm.

Optionally, the macro-balance can be detected periodically according to the time period, for example, once a week.

Correspondingly, as shown in FIG. 7, an embodiment of the present invention further provides an uplink interference control apparatus, including:

The obtaining unit 71 is configured to acquire network parameters of each cell.

The estimating unit 72 is configured to estimate, according to the network parameter, whether the difference between the transmit power before and after the handover is greater than a preset threshold when the user equipment performs cell handover;

The adjusting unit 73 is configured to: after the estimating unit estimates that the difference between the transmit powers is greater than the preset threshold, adjust the network parameter to enable the user equipment to transmit power before and after cell handover. The difference is less than the preset threshold to control uplink interference of the user equipment to the cell.

The uplink interference control apparatus provided by the embodiment of the present invention can obtain the network parameters of each cell, and the estimating unit 72 can estimate, according to the network parameter, whether the difference between the transmit power before and after the handover is greater than when the user equipment performs cell handover. The preset threshold, the adjusting unit 73 can adjust the network parameter to ensure that the difference between the transmit power of the user equipment before and after the cell handover is smaller than that, when the difference between the transmit powers is greater than the preset threshold. The preset threshold is used to control uplink interference of the user equipment to the cell. In this way, when the macro cell is mixed with the network, the network parameters of each cell can be adjusted so that the difference between the transmit power of the user equipment before and after the cell handover is less than a preset threshold, that is, the user equipment transmits in the macro cell and the micro cell. Power for this small The area base station is suitable, so the transmission power does not excessively reduce the capacity of the micro cell, thereby causing excessive interference to other user equipments in the micro cell, and effectively improving the communication service quality of each cell in the hybrid networking.

Optionally, the network parameter includes a base station uplink receiving noise and a base station downlink configuration power.

Optionally, the estimating unit 72 is specifically configured to:

The balance parameter is the sum of the uplink reception noise and the downlink configuration power of one cell minus the sum of the uplink reception noise and the downlink configuration power of another cell.

Optionally, the adjusting unit 73 is configured to: adjust, according to the balance parameter, the base station uplink receiving noise of the cells, so that the difference between the transmit powers of the user equipment before and after the cell handover is less than the preset threshold.

Optionally, the adjusting unit 73 is specifically configured to adjust a noise figure through an analog circuit or add digital noise in a digital domain according to the balance parameter. Wherein, adding digital noise in the digital domain can be added from different digital processing units, such as baseband processing units, intermediate processing units, and/or radio frequency processing units.

Optionally, each of the cells includes a macro cell and a micro cell. In the embodiment of the present invention, by changing the uplink receiving noise of the micro cell, the micro station and the macro station are balanced under the coexistence networking mode, thereby avoiding the problem of lowering the service capability caused by the uplink interference.

It should be noted that the embodiment of the present invention may further provide a computer readable storage medium, where the storage medium includes a set of instructions that, when executed, cause at least one processor to perform operations including:

Obtaining network parameters of each cell; estimating, when the user equipment performs the cell according to the network parameter When the handover is performed, whether the difference between the transmit powers before and after the handover is greater than a preset threshold; if the difference between the transmit powers is greater than the preset threshold, the user equipment is switched in the cell by adjusting the network parameters. The difference between the front and rear transmit powers is less than the preset threshold to control uplink interference of the user equipment to the cell.

While the preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.

Industrial applicability

The embodiment of the invention discloses an uplink interference control method and device, and a computer readable storage medium, which can acquire network parameters of each cell, and then predict whether the difference between the transmission power before and after the handover is greater than a preset threshold, which is greater than the preset threshold. The difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold by adjusting the network parameter. In this way, when the macro cell is mixed with the network, the network parameters of each cell can be adjusted so that the difference between the transmit power of the user equipment before and after the cell handover is less than a preset threshold, that is, the transmit power does not excessively reduce the microcell capacity. Therefore, excessive interference is caused to other user equipments in the micro area, and the communication service quality of each cell in the hybrid network is effectively improved.

Claims

An uplink interference control method includes:

Obtaining network parameters of each cell;

Determining, according to the network parameter, whether the difference between the transmit power before and after the handover is greater than a preset threshold when the user equipment performs cell handover;

If the difference between the transmit powers is greater than the preset threshold, the network parameters are adjusted, so that the difference between the transmit powers of the user equipment before and after the cell handover is less than the preset threshold, to control the The uplink interference of the user equipment to the cell.
The method of claim 1 wherein said network parameters comprise:

The base station receives the bottom noise and the base station downlink configuration power.
The method according to claim 2, wherein the estimating, when the user equipment performs cell handover according to the network parameter, whether the difference between the transmit power before and after the handover is greater than a preset threshold comprises:

If the balance parameter between the two cells is less than the preset threshold, the difference between the transmit powers before and after the cell handover by the user equipment is estimated to be less than the preset threshold;

If the balance parameter between the two cells is greater than or equal to the preset threshold, determining that the difference between the transmit power of the user equipment before and after the cell handover is greater than or equal to the preset threshold;

The balance parameter is the sum of the uplink reception noise and the downlink configuration power of one cell, and the sum of the uplink reception noise and the downlink configuration power of another cell, and the difference is obtained.
The method according to claim 3, wherein the adjusting, by the network parameter, the difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold comprises:

The base station uplink receiving noise of each cell is adjusted according to the balance parameter, so that the difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold.
The method according to claim 4, wherein the adjusting the base station uplink reception noise of each cell according to the balance parameter comprises:

Adjusting the noise figure through the analog circuit or adding the number in the digital domain according to the balance parameter Word noise.
The method of any of claims 1 to 5, wherein each of the cells comprises a macro cell and a micro cell.
An uplink interference control device includes:

Obtaining a unit, configured to acquire network parameters of each cell;

The estimating unit is configured to estimate, according to the network parameter, whether the difference between the transmit power before and after the handover is greater than a preset threshold when the user equipment performs cell handover;

And an adjusting unit, configured to: when the estimating unit estimates that the difference between the transmit powers is greater than the preset threshold, adjusting the network parameters to make the difference between the transmit powers of the user equipment before and after the cell handover The preset threshold is smaller than the preset threshold to control uplink interference of the user equipment to the cell.
The apparatus of claim 7 wherein said network parameters comprise:

The base station receives the bottom noise and the base station downlink configuration power.
The apparatus according to claim 8, wherein the estimating unit is configured to estimate that, if the balance parameter between the two cells is less than a preset threshold, the difference between the transmit powers before and after the user equipment performs cell handover is estimated to be smaller than Predicting a threshold;

If the balance parameter between the two cells is greater than or equal to the preset threshold, determining that the difference between the transmit power of the user equipment before and after the cell handover is greater than or equal to the preset threshold;

The balance parameter is the sum of the uplink reception noise and the downlink configuration power of one cell minus the sum of the uplink reception noise and the downlink configuration power of another cell.
The apparatus according to claim 9, wherein the adjusting unit is configured to adjust, according to the balance parameter, a base station uplink receiving noise of each cell, so that a difference between a transmit power of the user equipment before and after a cell handover is less than The preset threshold.
The apparatus according to claim 10, wherein the adjustment unit is configured to adjust a noise figure through an analog circuit or to add digital noise in a digital domain according to the balance parameter.
The apparatus of any one of claims 7 to 11, wherein the cells comprise a macro cell and a micro cell.
A computer readable storage medium comprising a set of instructions that, when executed, cause at least one processor to perform operations comprising:

Acquiring the network parameters of each cell; estimating, according to the network parameter, whether the difference between the transmit power before and after the handover is greater than a preset threshold when the user equipment performs cell handover; and estimating that the difference between the transmit powers is greater than the preset threshold In the case of adjusting the network parameters, the difference between the transmit power of the user equipment before and after the cell handover is less than the preset threshold, so as to control the uplink interference of the user equipment to the cell.