CN101932088A

Movatterモバイル変換

Info

Publication number: CN101932088A
Application number: CN2009101509380A
Authority: CN
Inventors: 肖登坤; 黄剑
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-06-22
Filing date: 2009-06-22
Publication date: 2010-12-29
Anticipated expiration: 2029-06-22
Also published as: CN101932088B; WO2010148949A1

Abstract

Description

Power control, method of adjustment and device

Technical field

The embodiment of the invention relates to communication technical field, relates in particular to a kind of power control, method of adjustment and device.

Background technology

With respect to Long Term Evolution (long-term evolution, hereinafter to be referred as: LTE) system, in the LTE-A system, introduced carrier aggregation (Carrier Aggregation, hereinafter to be referred as: CA), cooperative multipoint transmission (Coordinated Multi-points transmission, hereinafter to be referred as: CoMP), multimedia broadcast/group broadcast service (Multi-broadcast and Multi-services, hereinafter to be referred as: MBMS) and relaying (hereinafter to be referred as key technology such as Relay).These key technologies make the LTE-A network provide higher peak rate for user terminal, thereby further improve service quality.Wherein, the function of Relay comprises covering that enlarges wireless network and the capacity that increases system.

Prior art is for to user terminal (User Equipment, hereinafter to be referred as: uplink transmission power UE) is controlled, can in base station (eNodeB), power control module be set, by this power control module to each Relay node (Relay Node, hereinafter to be referred as: RN) transmitting power control signal, can carry UE in this power control signal and carry out the various parameter informations that uplink transmission power is adjusted, each RN sends to this power control signal corresponding UE more then, so that UE carries out the adjustment of uplink transmission power according to the various parameter informations in this power control signal.

The inventor finds that there is following defective at least in prior art: because power control signal time delay in transmission course is bigger, cause UE lower to the adjustment precision of uplink transmission power in realizing process of the present invention.

Summary of the invention

The embodiment of the invention provides a kind of power control, method of adjustment and device, bigger with power control signal time delay in transmission course in the solution prior art, cause the UE problem lower to the adjustment precision of uplink transmission power, realize improving the adjustment precision of UE, reduce the effect of adjusting error uplink transmission power.

The embodiment of the invention provides a kind of Poewr control method, comprising:

First parameter information that the reception base station issues also calculates and obtains second parameter information;

Described first parameter information and second parameter information are sent to user terminal, adjust uplink transmission power according to described first parameter information and second parameter information for described user terminal.

The embodiment of the invention provides a kind of power regulating method, comprising:

Receive first parameter information and the via node transmitted by via node the base station and calculate second parameter information that obtains and send;

Adjust uplink transmission power according to described first parameter information and described second parameter information.

The embodiment of the invention provides a kind of via node, comprising:

Receiving processing module is used to receive first parameter information that the base station issues and calculates and obtain second parameter information;

Sending module, first parameter information and second parameter information that are used for described receiving processing module is obtained send to user terminal, adjust uplink transmission power for described user terminal according to described first parameter information and second parameter information.

The embodiment of the invention provides a kind of user terminal, comprising:

Receiver module is used to receive first parameter information and the via node transmitted by via node the base station and calculates second parameter information that obtains and send;

Adjusting module is used for adjusting uplink transmission power according to described first parameter information and second parameter information.

The embodiment of the invention provides a kind of power control system, comprising: base station and via node,

Described base station is used for sending first parameter information to described via node;

Described via node, be used to receive first parameter information that described base station sends, second parameter information is obtained in calculating, and described first parameter information and second parameter information sent to user terminal, adjust uplink transmission power for described user terminal according to described first parameter information and second parameter information.

The embodiment of the invention is calculated by RN and is obtained second parameter information, and first parameter information that this second parameter information and base station are sent sends to UE, make UE under the control of second parameter information that RN sends,, realize the adjustment of uplink transmission power assisting down of first parameter information.Because it is nearer the distance of distance between base station and UE between RN and the UE, therefore, the time delay that employing RN controls UE adjustment uplink transmission power is less, thereby can improve the precision that RN control UE adjusts uplink transmission power, further improve the adjustment precision of UE, reduce and adjust error uplink transmission power.

In view of also existing RN, prior art always transmits with maximum rated transmitting power, cause RN because the excessive uplink throughput to peripheral cell of uplink transmission power causes the problem of briquettability interference, the embodiment of the invention also provides following power control, method of adjustment and device.

Obtain the average uplink throughput of a plurality of base stations;

Change information according to described average uplink throughput is adjusted signal to the via node transmitted power, adjusts signal for described via node according to described power and adjusts uplink transmission power.

Receive the base station and adjust signal according to the power of the change information transmission of the average uplink throughput of a plurality of base stations around the described base station;

Adjust signal according to described power and adjust uplink transmission power.

The embodiment of the invention provides a kind of base station, comprising:

Acquisition module is used to obtain the average uplink throughput of a plurality of base stations;

Sending module is used for adjusting signal according to the change information of described average uplink throughput to the via node transmitted power, adjusts signal for described via node according to described power and adjusts uplink transmission power.

The embodiment of the invention provides a kind of via node, comprising:

Receiver module is used to receive the base station and adjusts signal according to the power that change information sent of the average uplink throughput of a plurality of base stations around the described base station;

Power regulation module is used for adjusting signal according to described power and adjusts uplink transmission power.

Described base station is used to obtain the average uplink throughput of a plurality of base stations; Change information according to described average uplink throughput is adjusted signal to the via node transmitted power;

Described via node is used to receive the power adjustment signal that the base station sends, and adjusts signal according to described power and adjust uplink transmission power.

The embodiment of the invention is by obtaining the average uplink throughput that is in current eNodeB a plurality of eNodeB on every side, can be so that current eNodeB be known the situation of change of the uplink throughput of its a plurality of eNodeB on every side, make current eNodeB can control the uplink transmission power of corresponding RN according to the situation of change of this average uplink throughput, and needn't allow RN always transmit, thereby avoided RN because the problem that the excessive uplink throughput to peripheral cell of uplink transmission power causes briquettability to disturb with maximum rated transmitting power.

Description of drawings

In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the flow chart of an embodiment of Poewr control method of the present invention;

Fig. 2 is the flow chart of an embodiment of power regulating method of the present invention;

Fig. 3 is the structural representation of an embodiment of via node of the present invention;

Fig. 4 is the structural representation of another embodiment of via node of the present invention;

Fig. 5 is the structural representation of another embodiment of via node of the present invention;

Fig. 6 is the structural representation of an embodiment of user terminal of the present invention;

Fig. 7 is the structural representation of another embodiment of user terminal of the present invention;

Fig. 8 is the structural representation of another embodiment of user terminal of the present invention;

Fig. 9 is the structural representation of an embodiment of power control system of the present invention;

Figure 10 is the flow chart of another embodiment of Poewr control method of the present invention;

Figure 11 is the flow chart of another embodiment of power regulating method of the present invention;

Figure 12 is the structural representation of an embodiment of base station of the present invention;

Figure 13 is the structural representation of another embodiment of via node of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

Fig. 1 is the flow chart of an embodiment of Poewr control method of the present invention, and as shown in Figure 1, the method for present embodiment comprises:

First parameter information thatstep 101, reception base station issue also calculates and obtains second parameter information;

Need to prove, the above-mentioned several information that may comprise in first parameter information and second parameter information that only provided, but be not limited to this several information, only first parameter information that the base station is issued is that UE adjusts the supplementary of uplink transmission power and for having the time delay insensitivity, second parameter information that RN calculating is obtained is that the control information of UE adjustment uplink transmission power gets final product.

Step 102, described first parameter information and second parameter information are sent to user terminal, adjust uplink transmission power according to described first parameter information and second parameter information for described user terminal.

Present embodiment calculates by RN and obtains second parameter information, and first parameter information that this second parameter information and base station are sent sends to UE, make UE under the control of second parameter information that RN sends, in the auxiliary adjustment that realizes uplink transmission power down of first parameter information.Because it is nearer the distance of distance between base station and UE between RN and the UE, therefore, the time delay that employing RN controls UE adjustment uplink transmission power is less, thereby can improve the precision that RN control UE adjusts uplink transmission power, further improve the adjustment precision of UE, reduce and adjust error uplink transmission power.

Among another embodiment of Poewr control method of the present invention, in thestep 101 shown in Figure 1, first parameter information that described reception base station issues can comprise: receive the base station cell power contorl parameters and regulate the path loss control information that calculation of parameter is obtained and issued according to path loss reference value, via node position coordinates and path; Described calculating is obtained second parameter information and is comprised: calculate and obtain cell power Control Parameter, resource allocation information, code rate information and signal to noise ratio compensated information.In thestep 102, described user terminal is adjusted uplink transmission power according to described first parameter information and second parameter information, comprise: described user terminal calculates according to described path loss control information and obtains path loss parameter values, and obtains the uplink transmission power reference value according to described cell power Control Parameter, path loss parameter values, resource allocation information, code rate information and the calculating of signal to noise ratio compensated information; According to a described uplink transmission power reference value and a medium and small uplink transmission power of adjusting described user terminal of up maximum rated transmitting power.

For instance, the RN in the present embodiment can carry the repertoire of base station, and RN can receive the path loss control information θ that the base station sends_i, θ_iBe slow running parameter, low to the sensitiveness of time delay, this θ_iCan regulate calculation of parameter according to path loss reference value, via node position coordinates and path obtains.Signaling can be permitted with θ by scheduling in the base station_iPass to RN.RN itself can also calculate and obtain cell power Control Parameter P₀, resource allocation information MPUSCH, code rate information Δ TF and signal to noise ratio compensated information f (i).Because the covering radius of base station is bigger, and by contrast, RN is as the servicing unit that communicates between base station and the UE, its covering radius is less, therefore, adopt RN to calculate when obtaining above-mentioned parameter information, the span the when parameter range that is adopted is obtained above-mentioned parameter information with respect to base station calculating is less.

RN can pass to UE with the above-mentioned parameter information that obtains.UE can be according to path loss control information θ_iPath loss parameter values PL is obtained in calculating, and according to P₀, path loss parameter values PL, resource allocation information MPUSCH, code rate information Δ TF and signal to noise ratio compensated information f (i) calculate and obtain the uplink transmission power reference value.In the specific implementation process, UE can adopt formula: PL=θ_i* (the filtered Reference Signal Received Power of reference signal power-high-order) calculating path loss parameter value PL, wherein the filtered Reference Signal Received Power of reference signal power and high-order is default reference value.

Among another embodiment of Poewr control method of the present invention, in the step 101 shown in Figure 1, first parameter information that described reception base station issues comprises: the path loss control information that calculation of parameter is obtained is regulated according to path loss reference value, via node position coordinates and path in resource allocation information, signal to noise ratio target information and base station that the reception base station issues; Calculating is obtained second parameter information and is comprised: calculate the code rate information of obtaining according to resource allocation information, calculate according to the signal to noise ratio target information and obtain the signal to noise ratio compensated information, and calculate the power adjustment step-length information of obtaining according to described signal to noise ratio target information.User terminal described in the step 102 is adjusted uplink transmission power according to described first parameter information and second parameter information, comprise: described user terminal calculates according to described path loss control information and obtains path loss parameter values, and adjusts the step-length information calculations according to described cell power Control Parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and power and obtain the uplink transmission power reference value; According to a described uplink transmission power reference value and a medium and small uplink transmission power of adjusting described user terminal of up maximum rated transmitting power.

For instance, RN can receive resource allocation information MPUSCH, the signal to noise ratio target information SINT that the base station regularly issues_TargetAnd path loss control information θ_iThis resource allocation information MPUSCH, signal to noise ratio target information SINT_TargetAnd path loss control information θ_iBe slow running parameter, low to the sensitiveness of time delay, this θ_iCan regulate calculation of parameter according to path loss reference value, via node position coordinates and path obtains.Signaling can be permitted with resource allocation information MPUSCH, signal to noise ratio target information SINT by scheduling in the base station_TargetAnd path loss control information θ_iPass to RN.RN itself can also according to resource allocation information MPUSCH calculate obtain code rate information Δ TF and, according to signal to noise ratio target information SINT_TargetSignal to noise ratio compensated information f (i) is obtained in calculating, and cell power Control Parameter P₀And RN can also be according to signal to noise ratio target information SINT_TargetCalculating is obtained power and is adjusted step-length information δ, if current signal to noise ratio is less than signal to noise ratio target information SINT_Target, then can increase power and adjust step-length information δ, adjust step-length information δ otherwise can reduce power, to guarantee to adjust precision.

RN can pass to UE with the above-mentioned parameter information that obtains.UE can calculate according to path loss control information θ i and obtain path loss parameter values PL, and according to cell power Control Parameter P₀, path loss parameter values PL, resource allocation information MPUSCH, code rate information Δ TF, signal to noise ratio compensated information f (i) and power adjusts step-length information δ and calculates and obtain the uplink transmission power reference value.In the specific implementation process, UE can adopt formula: PL=θ_i* (the filtered Reference Signal Received Power of reference signal power-high-order) calculating path loss parameter value PL, wherein the filtered Reference Signal Received Power of reference signal power and high-order is default reference value.

Fig. 2 is the flow chart of an embodiment of power regulating method of the present invention, and as shown in Figure 2, the method for present embodiment comprises:

First parameter information and the via node that transmit by vianode step 201, reception base station calculate second parameter information that obtains and send;

Need to prove, the above-mentioned several information that may comprise in first parameter information and second parameter information that only provided, but be not limited to this several information, only first parameter information that the base station is issued is the supplementary that UE adjusts uplink transmission power, and second parameter information that RN calculating is obtained is that the control information of UE adjustment uplink transmission power gets final product.

RN can send to UE with this first parameter information and second parameter information after getting access to above-mentioned first parameter information and second parameter information.

Step 202, adjust uplink transmission power according to described first parameter information and second parameter information.

UE can obtain required uplink transmission power according to this first parameter information and the calculating of second parameter information, thereby make UE adjust corresponding uplink transmission power under the control of RN after receiving this first parameter information and second parameter information.

UE is under the control of second parameter information that RN sends in the present embodiment, and first parameter information that sends at the RN repeating base station down auxiliary realized the adjustment of uplink transmission power.Because it is nearer the distance of distance between base station and UE between RN and the UE, therefore, the time delay that employing RN controls UE adjustment uplink transmission power is less, thereby can improve the precision that RN control UE adjusts uplink transmission power, further improve the adjustment precision of UE, reduce and adjust error uplink transmission power.

Among another embodiment of power regulating method of the present invention, first parameter information that transmit by via node reception base station among Fig. 2 described in thestep 201 can comprise: receive the base station and regulate the path loss control information that calculation of parameter is obtained by the base station that via node sends according to path loss reference value, via node position coordinates and path; Described reception via node calculates second parameter information that obtains and send, and can comprise: receive via node and calculate cell power Control Parameter, resource allocation information, code rate information and the signal to noise ratio compensated information that obtains and send.Adjust uplink transmission power according to described first parameter information and second parameter information described in thestep 202, can comprise: calculate according to described path loss control information and obtain path loss parameter values, and obtain the uplink transmission power reference value according to described cell power Control Parameter, path loss parameter values, resource allocation information, code rate information and the calculating of signal to noise ratio compensated information; According to a described uplink transmission power reference value and a medium and small uplink transmission power of adjusting described user terminal of up maximum rated transmitting power.

For instance, RN can receive the path loss control information θ that the base station sends_i, this θ_iBe slow running parameter, low to the sensitiveness of time delay, this θ_iCan regulate calculation of parameter according to path loss reference value, via node position coordinates and path obtains.Signaling can be permitted with this path loss control information θ by scheduling in the base station_iPass to RN.RN itself can also calculate and obtain resource allocation information MPUSCH, code rate information Δ TF and signal to noise ratio compensated information f (i).

UE can receive RN and transmit and next above-mentioned parameter information.UE can be according to path loss control information θ_iPath loss parameter values PL is obtained in calculating, and according to cell power Control Parameter P₀, path loss parameter values PL, resource allocation information MPUSCH, code rate information Δ TF and signal to noise ratio compensated information f (i) calculate and obtain the uplink transmission power reference value.In the specific implementation process, UE can adopt formula: PL=θ_i* (the filtered Reference Signal Received Power of reference signal power-high-order) calculating path loss parameter value PL, wherein the filtered Reference Signal Received Power of reference signal power and high-order is default reference value.

Among another embodiment of Poewr control method of the present invention, first parameter information that transmit by via node reception base station described in the described step 201 of Fig. 2 can comprise: receive the base station and regulate the path loss control information that calculation of parameter is obtained by resource allocation information, signal to noise ratio target information and base station that via node sends according to path loss reference value, via node position coordinates and path; Described reception via node calculates second parameter information that obtains and send, can comprise: receive via node and calculate code rate information of obtaining and sending and the signal to noise ratio compensated information that obtains and send according to described signal to noise ratio target information calculating, and via node calculates the power adjustment step-length information of obtaining and sending according to described signal to noise ratio target information according to described resource allocation information.In the step 202, described according to described first parameter information and second parameter information adjustment uplink transmission power, can comprise: calculate according to described path loss control information and obtain path loss parameter values, and adjust the step-length information calculations according to described cell power Control Parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and power and obtain the uplink transmission power reference value; According to a described uplink transmission power reference value and a medium and small uplink transmission power of adjusting described user terminal of up maximum rated transmitting power.

For instance, RN can receive resource allocation information MPUSCH, the signal to noise ratio target information SINT that the base station regularly issues_TargetAnd path loss control information θ_iThis resource allocation information MPUSCH, signal to noise ratio target information SINT_TargetAnd path loss control information θ_iBe slow running parameter, low to the sensitiveness of time delay, this θ_iCan regulate calculation of parameter according to path loss reference value, via node position coordinates and path obtains.Signaling can be permitted with this resource allocation information MPUSCH, signal to noise ratio target information SINT by scheduling in the base station_TargetAnd path loss control information θ_iPass to RN.RN itself can also calculate according to resource allocation information MPUSCH and obtain code rate information Δ TF, according to signal to noise ratio target information SINT_TargetSignal to noise ratio compensated information f (i) is obtained in calculating, and cell power Control Parameter P₀And RN can also be according to signal to noise ratio target information SINT_TargetCalculating is obtained power and is adjusted step-length information δ, if current signal to noise ratio is less than signal to noise ratio target information SINT_Target, then can increase power and adjust step-length information δ, adjust step-length information δ otherwise can reduce power, to guarantee to adjust precision.

UE can receive RN and transmit and next above-mentioned parameter information.UE can be according to path loss control information θ_iPath loss parameter values PL is obtained in calculating, and according to cell power Control Parameter P₀, path loss parameter values PL, resource allocation information MPUSCH, code rate information Δ TF, signal to noise ratio compensated information f (i) and power adjusts step-length information δ and calculates and obtain the uplink transmission power reference value.In the specific implementation process, UE can adopt formula: PL=θ_i* (the filtered Reference Signal Received Power of reference signal power-high-order) calculating path loss parameter value PL, wherein the filtered Reference Signal Received Power of reference signal power and high-order is default reference value.

Fig. 3 is the structural representation of an embodiment of via node of the present invention, as shown in Figure 3, the via node of present embodiment comprises: receivingprocessing module 11 and sendingmodule 12, and wherein receivingprocessing module 11 is used to receive first parameter information that the base station issues and calculates and obtain second parameter information; First parameter information and second parameter information that sendingmodule 12 is used for described receiving processing module is obtained send to user terminal, adjust uplink transmission power for described user terminal according to described first parameter information and second parameter information.

Present embodiment is identical with the principle of Poewr control method embodiment shown in Figure 1, repeats no more.

The RN of present embodiment, obtain second parameter information by receiving processing module calculating, and first parameter information that this second parameter information and base station send is sent to UE by sending module, make UE under the control of second parameter information that RN sends, assisting down of first parameter information, realize the adjustment of uplink transmission power.Because it is nearer the distance of distance between base station and UE between RN and the UE, therefore, the time delay that the RN of present embodiment controls UE adjustment uplink transmission power is less, thereby can improve the precision that RN control UE adjusts uplink transmission power, further improve the adjustment precision of UE, reduce and adjust error uplink transmission power.

Fig. 4 is the structural representation of another embodiment of via node of the present invention, as shown in Figure 4, the via node of present embodiment comprises: receivingprocessing module 11 and sendingmodule 12, and wherein receivingprocessing module 11 is used to receive first parameter information that the base station issues and calculates and obtain second parameter information; First parameter information and second parameter information that sendingmodule 12 is used for described receiving processing module is obtained send to user terminal, adjust uplink transmission power for described user terminal according to described first parameter information and second parameter information.Further, this receivingprocessing module 11 can comprise: first receivingelement 111 and first processing unit, 112, the first receivingelements 111 are used to receive the base station and regulate the path loss control information that calculation of parameter is obtained and issued according to path loss reference value, via node position coordinates and path; First processingunit 112 is used for calculating and obtains cell power Control Parameter, resource allocation information, code rate information and signal to noise ratio compensated information.

For instance, among the RN of present embodiment, first receivingelement 111 can receive the path loss control information θ that the base station sends_i, this θ_iCan regulate calculation of parameter according to path loss reference value, via node position coordinates and path obtains.Signaling can be permitted with this path loss control information θ by scheduling in the base station_iPass to RN.First processing unit 112 can calculate and obtain resource allocation information MPUSCH, code rate information Δ TF and signal to noise ratio compensated information f (i) and cell power Control Parameter P₀

Sendingmodule 12 can pass to UE with the above-mentioned parameter information that obtains.UE can be according to path loss control information θ_iPath loss parameter values PL is obtained in calculating, and according to cell power Control Parameter P₀, path loss parameter values PL, resource allocation information MPUSCH, code rate information Δ TF and signal to noise ratio compensated information f (i) calculate and obtain the uplink transmission power reference value.In the specific implementation process, UE can adopt formula: PL=θ_i* (the filtered Reference Signal Received Power of reference signal power-high-order) calculating path loss parameter value PL, wherein the filtered Reference Signal Received Power of reference signal power and high-order is default reference value.

Fig. 5 is the structural representation of another embodiment of via node of the present invention, as shown in Figure 5, the via node of present embodiment comprises: receivingprocessing module 11 and sendingmodule 12, and wherein receivingprocessing module 11 is used to receive first parameter information that the base station issues and calculates and obtain second parameter information; First parameter information and second parameter information that sendingmodule 12 is used for described receiving processing module is obtained send to user terminal, adjust uplink transmission power for described user terminal according to described first parameter information and second parameter information.Further, this receivingprocessing module 11 can comprise: second receivingelement 113 and second processing unit 114.Second receiving element 113 is used to receive resource allocation information, signal to noise ratio target information and the base station that the base station issues and regulates the path loss control information that calculation of parameter is obtained according to path loss reference value, via node position coordinates and path;Second processing unit 114 is used for calculating the code rate information of obtaining according to described resource allocation information, calculates according to described signal to noise ratio target information and obtains the signal to noise ratio compensated information, and calculate the power adjustment step-length information of obtaining according to described signal to noise ratio target information.

For instance, second receivingelement 113 can receive resource allocation information MPUSCH, the signal to noise ratio target information SINT that the base station issues_TargetAnd path loss control information θ_iThis P₀Can be empirical value, this signal to noise ratio target information SINT_TargetBe slow running parameter, low to the sensitiveness of time delay, this θ_iCan regulate calculation of parameter according to path loss reference value, via node position coordinates and path obtains.Signaling can be permitted with this resource allocation information MPUSCH, signal to noise ratio target information SINT by scheduling in the base station_TargetAnd path loss control information θ_iPass to RN.Second processing unit 114 can calculate according to described resource allocation information MPUSCH and obtain code rate information Δ TF, according to signal to noise ratio target information SINT_TargetSignal to noise ratio compensated information f (i) is obtained in calculating, and obtains cell power Control Parameter P₀Andsecond processing unit 114 can also be according to signal to noise ratio target information SINT_TargetCalculating is obtained power and is adjusted step-length information δ, if current signal to noise ratio is less than signal to noise ratio target information SINT_Target, then can increase power and adjust step-length information δ, adjust step-length information δ otherwise can reduce power, to guarantee to adjust precision.

Sendingmodule 12 can pass to UE with the above-mentioned parameter information that obtains.UE can be according to path loss control information θ_iPath loss parameter values PL is obtained in calculating, and according to cell power Control Parameter P₀, path loss parameter values PL, resource allocation information MPUSCH, code rate information Δ TF, signal to noise ratio compensated information f (i) and power adjusts step-length information δ and calculates and obtain the uplink transmission power reference value.In the specific implementation process, UE can adopt formula: PL=θ_i* (the filtered Reference Signal Received Power of reference signal power-high-order) calculating path loss parameter value PL, wherein the filtered Reference Signal Received Power of reference signal power and high-order is default reference value.

It will be understood by those skilled in the art that, among Fig. 4 and the RN shown in Figure 5, first receivingelement 111,first processing unit 112, second receivingelement 113 andsecond processing unit 114 also can be combined in this receivingprocessing module 11 simultaneously, its realization principle that realizes principle and above-mentioned Fig. 4 and RN shown in Figure 5 is similar, repeats no more.

Fig. 6 is the structural representation of an embodiment of user terminal of the present invention, as shown in Figure 6, the user terminal of present embodiment comprises:receiver module 21 and adjustingmodule 22, thisreceiver module 21 are used to receive first parameter information and the via node transmitted by via node the base station and calculate second parameter information that obtains and send; Adjustingmodule 22 is used for adjusting uplink transmission power according to described first parameter information and second parameter information.

Present embodiment is identical with the principle of power regulating method embodiment shown in Figure 2, repeats no more.

The UE of present embodiment is under the control of second parameter information that RN sends, and first parameter information that sends at the RN repeating base station down auxiliary realized the adjustment of uplink transmission power.Because it is nearer the distance of distance between base station and UE between RN and the UE, therefore, the time delay of the UE of present embodiment when accepting RN uplink transmission power is adjusted is less, thereby can improve the adjustment precision of UE to uplink transmission power, reduces and adjusts error.

Fig. 7 is the structural representation of another embodiment of user terminal of the present invention, as shown in Figure 7, the user terminal of present embodiment comprises:receiver module 21 and adjustingmodule 22, thisreceiver module 21 are used to receive first parameter information and the via node transmitted by via node the base station and calculate second parameter information that obtains and send; Adjustingmodule 22 is used for adjusting uplink transmission power according to described first parameter information and second parameter information.

Further, first parameter information ofreceiver module 21 receptions comprises: the path loss control information that calculation of parameter is obtained is regulated according to path loss reference value, via node position coordinates and path in the base station; Second parameter information thatreceiver module 21 receives comprises: cell power Control Parameter, resource allocation information, code rate information and signal to noise ratio compensated information.Correspondingly, this adjustingmodule 22 can comprise: first calculation processing unit 221 and first is adjusted processing unit 222.First calculation processing unit 221 is used for obtaining path loss parameter values according to described path loss control information calculating, and obtains the uplink transmission power reference value according to described cell power Control Parameter, path loss parameter values, resource allocation information, code rate information and the calculating of signal to noise ratio compensated information; First adjusts processingunit 222 is used for according to a described uplink transmission power reference value and a medium and small uplink transmission power of adjusting described user terminal of up maximum rated transmitting power.

Fig. 8 is the structural representation of another embodiment of user terminal of the present invention, as shown in Figure 8, the user terminal of present embodiment comprises:receiver module 21 and adjustingmodule 22, thisreceiver module 21 are used to receive first parameter information and the via node transmitted by via node the base station and calculate second parameter information that obtains and send; Adjustingmodule 22 is used for adjusting uplink transmission power according to described first parameter information and second parameter information.

Further, first parameter information ofreceiver module 21 receptions comprises: the path loss control information that calculation of parameter is obtained is regulated according to path loss reference value, via node position coordinates and path in resource allocation information, signal to noise ratio target information and base station; Second parameter information thatreceiver module 21 receives comprises: cell power Control Parameter, code rate information and signal to noise ratio compensated information, and via node calculates the power adjustment step-length information of obtaining and sending according to described signal to noise ratio target information.Correspondingly, this adjustingmodule 22 can comprise: second calculation processing unit 223 and second is adjusted processing unit 224.Second calculation processing unit 223 is used for obtaining path loss parameter values according to described path loss control information calculating, and adjusts the step-length information calculations according to described cell power Control Parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and power and obtain the uplink transmission power reference value; Second adjusts processing unit 224 is used for according to a described uplink transmission power reference value and a medium and small uplink transmission power of adjusting described user terminal of up maximum rated transmitting power.

It will be understood by those skilled in the art that, among Fig. 7 and the RN shown in Figure 8, first calculation processing unit 221, first is adjustedprocessing unit 222, second calculation processing unit 223 and second is adjusted processing unit 224 and also can be combined in thisadjusting module 22 simultaneously, its realization principle that realizes principle and above-mentioned Fig. 7 and RN shown in Figure 8 is similar, repeats no more.

Fig. 7 and embodiment illustrated in fig. 8 in UE under the control of second parameter information that RN sends, first parameter information that sends at the RN repeating base station down auxiliary realized the adjustment of uplink transmission power.Because nearer the distance of distance between base station and UE between RN and the UE, therefore, the time delay of this UE when accepting RN uplink transmission power is adjusted is less, thereby can improve the adjustment precision of UE to uplink transmission power, reduces the adjustment error.

Fig. 9 is the structural representation of an embodiment of power control system of the present invention, and as shown in Figure 9, the system of present embodiment comprises:base station 1 and vianode 2,base station 1 are used for sending first parameter information to vianode 2; Vianode 2 is used to receive first parameter information thatbase station 1 sends, second parameter information is obtained in calculating, and first parameter information and second parameter information sent to user terminal, adjust uplink transmission power for described user terminal according to described first parameter information and second parameter information.

Supplementary when first parameter information that the base station issues is only adjusted uplink transmission power as follow-up UE, but not control information, and, this first parameter information is slow running parameter, therefore promptly lower to delay sensitive parameter information can not limit RN control UE in time and adjust uplink transmission power.And the control information of UE when adjusting uplink transmission power calculated by RN and obtained and issue.Because the covering radius of base station is bigger, and by contrast, RN is as the servicing unit that communicates between base station and the UE, its covering radius is less, therefore, adopt RN to calculate when obtaining above-mentioned parameter information, the span the when parameter range that is adopted is obtained above-mentioned parameter information with respect to base station calculating is less.And, RN is with respect to the base station, and the close together between the UE, when therefore adopting RN that the uplink transmission power of UE is controlled, time delay when its time delay is controlled with respect to the base station reduces greatly, thereby can improve the control precision to the UE uplink transmission power.

Present embodiment calculates by RN and obtains second parameter information, and first parameter information that this second parameter information and base station are sent sends to UE, make UE under the control of second parameter information that RN sends,, realize the adjustment of uplink transmission power assisting down of first parameter information.Because it is nearer the distance of distance between base station and UE between RN and the UE, therefore, the time delay that employing RN controls UE adjustment uplink transmission power is less, thereby can improve the precision that RN control UE adjusts uplink transmission power, further improve the adjustment precision of UE, reduce and adjust error uplink transmission power.

Figure 10 is the flow chart of another embodiment of Poewr control method of the present invention, and as shown in figure 10, the method for present embodiment comprises:

Step 301, obtain the average uplink throughput of a plurality of base stations;

For instance, current base station (eNodeB) can be obtained the average uplink throughput of a plurality of eNodeB, and this average uplink throughput can be obtained the uplink throughput averaged of a plurality of eNodeB.A plurality of eNodeB are in current eNodeB a plurality of eNodeB on every side, and the quantity of a plurality of eNodeB can be selected as required.

Throughput can be represented with the quantity of the UE that admits service or total data rate.The uplink transmission power of the RN that communicates by letter with current eNodeB can exert an influence to the uplink throughput that is in current eNodeB a plurality of eNodeB on every side.A plurality of eNodeB around described can include but not limited to cover the eNodeB that overlaps greater than certain threshold value with the distance of current eNodeB less than other eNodeB or the signal of certain threshold value.If the uplink transmission power of the RN that communicates by letter with current eNodeB is bigger, then can reduce the uplink throughput that is in current eNodeB a plurality of eNodeB on every side.This shows, the uplink transmission power of the average uplink throughput couple RN that communicates by letter with current eNodeB that can be by being in a plurality of eNodeB around the current eNodeB is controlled, thus the influence of the excessive uplink throughput to other eNodeB of the uplink transmission power of the RN that reduction is communicated by letter with current eNodeB.

Step 302, adjust signal to the via node transmitted power, adjust signal for described via node according to described power and adjust uplink transmission power according to the change information of described average uplink throughput.

ENodeB can adjust signal to the RN transmitted power according to the change information of the average uplink throughput of the eNodeB around it, and RN can adjust the corresponding uplink transmission power of signal adjustment according to this power.For example, when eNodeB judged that according to the average uplink throughput of obtaining this average uplink throughput reduces, it can be that the power that reduces the uplink transmission power of this RN is adjusted signal that the power that this eNodeB sends to RN is adjusted signal.When RN receives this power adjustment signal, can adjust signal according to this power and reduce its uplink transmission power.

The Poewr control method of present embodiment is by obtaining the average uplink throughput that is in current eNodeB a plurality of eNodeB on every side, can be so that current eNodeB be known the situation of change of the uplink throughput of its a plurality of eNodeB on every side, make current eNodeB can control the uplink transmission power of corresponding RN according to the situation of change of this average uplink throughput, and needn't allow RN always transmit, thereby avoided RN because the problem that the excessive uplink throughput to peripheral cell of uplink transmission power causes briquettability to disturb with maximum rated transmitting power.

Poewr control method of the present invention is also among embodiment, the described average uplink throughput of obtaining a plurality of base stations of the describedstep 301 of Figure 10 can comprise: obtain the throughput statistics entity and the uplink throughput of a plurality of base stations is averaged handle the average uplink throughput of determining; The change information according to described average uplink throughput described in thestep 302 is adjusted signal to the via node transmitted power, can comprise: if described average uplink throughput reduces, then the power that sends the uplink transmission power that is used to reduce described via node to described via node is adjusted signal.

For instance, this throughput statistics entity can be self-organizing network (Self Organization Network, hereinafter to be referred as: SON), each eNodeB can be connected with SON, thereby reports its uplink throughput separately to SON.For current eNode, the uplink throughput that SON can report a plurality of eNodeB that are in around the current eNode averages processing, thereby determines average uplink throughput.SON can send to current eNodeB with the average uplink throughput of determining.Current eNodeB can adjust signal to corresponding RN transmitted power according to this average uplink throughput.For example, if this average uplink throughput reduces, then send the power adjustment signal of the uplink transmission power that is used to reduce RN to RN.

In the specific implementation process, current eNodeB can be provided with the power initial value P of RN_Max(i), i=0, and the uplink transmission power P of the RN that will communicate by letter with current eNodeB_CmaxBe made as power initial value P_Max(i).In each power control period, current eNodeB can obtain average uplink throughput Tu from the throughput statistics entity, if when this average uplink throughput Tu reduces, can be when decrease surpasses a certain threshold value in scope sometime during practical operation, then P_Cmax(i+1)=P_Cmax(i)-and Step_u, i=i+1, wherein Step_u is for regulating step-length.Adopt P_Cmax(i+1)=P_Cmax(i)-and Step_u, i=i+1 is to the uplink transmission power P of RN_CmaxUpgrade, when power control period finished, current eNodeB can obtain the final uplink transmission power of RN, thereby adjusted signal according to the final uplink transmission power of determining to the RN transmitted power.

The Poewr control method of present embodiment is by obtaining the average uplink throughput that is in current eNodeB a plurality of eNodeB on every side, can be so that current eNodeB be known its a plurality of eNodeB uplink throughput situations of change on every side, make current eNodeB can control the uplink transmission power of corresponding RN according to the situation of change of this average uplink throughput, and needn't allow RN always transmit, thereby avoided RN because the problem that the excessive uplink throughput to peripheral cell of uplink transmission power causes briquettability to disturb with maximum rated transmitting power.

Poewr control method of the present invention another embodiment again can further comprise on the basis of embodiment shown in Figure 10: the average downlink throughput capacity that obtains a plurality of base stations; Adjust the down transmitting power of self according to the change information of described average downlink throughput capacity.

Wherein, the described average downlink throughput capacity that obtains a plurality of base stations comprises: obtain the throughput statistics entity and the downlink throughput capacity of a plurality of base stations is averaged handle the average downlink throughput capacity of determining; Adjust self down transmitting power according to the change information of described average downlink throughput capacity, comprising:, then reduce the down transmitting power that sends signal to via node if described average downlink throughput capacity reduces.

For instance, this throughput statistics entity also can adopt SON.For current eNodeB, the downlink throughput capacity that SON can report a plurality of eNodeB that are in around the current eNode averages processing, thereby determines average downlink throughput capacity.SON can send to current eNodeB with the average downlink throughput capacity of determining.Current eNodeB can adjust himself according to the change information of this average downlink throughput capacity and send the required down transmitting power of signal to RN.For example, if this average downlink throughput capacity reduces, then eNodeB can reduce to the required down transmitting power of RN transmission signal.

The Poewr control method of present embodiment is by obtaining the average downlink throughput capacity that is in current eNodeB a plurality of eNodeB on every side, can be so that current eNodeB be known the downlink throughput capacity situation of change of its a plurality of eNodeB on every side, make current eNodeB himself to send the required down transmitting power of signal according to the situation of change control of this average downlink throughput capacity to RN, and needn't always transmit, thereby avoided because the problem that the excessive downlink throughput capacity to peripheral cell of down transmitting power causes briquettability to disturb with maximum rated transmitting power.

Figure 11 is the flow chart of another embodiment of power regulating method of the present invention, and as shown in figure 11, the method for present embodiment comprises:

Signal is adjusted according to the power of the change information transmission of the average uplink throughput of a plurality of base stations around the described base station instep 401, reception base station;

For instance, current eNodeB can obtain the average uplink throughput of a plurality of eNodeB, and this average uplink throughput can be obtained the uplink throughput averaged of a plurality of eNodeB.A plurality of eNodeB are in current eNodeB a plurality of eNodeB on every side, and the quantity of a plurality of eNodeB can be selected as required.

ENodeB can adjust signal to the RN transmitted power according to the change information of the average uplink throughput of the eNodeB around it, and RN can adjust the corresponding uplink transmission power of signal adjustment according to this power.For example, when eNodeB judged that according to the average uplink throughput of obtaining this average uplink throughput reduces, it can be that the power that reduces the uplink transmission power of this RN is adjusted signal that the power that this eNodeB sends to RN is adjusted signal.

Step 402, adjust signal according to described power and adjust transmitting power.

When RN receives this power adjustment signal, can adjust signal according to this power and reduce its uplink transmission power.

Power regulating method of the present invention is also among embodiment, signal is adjusted according to the power that the change information of the average uplink throughput of a plurality of base stations around the described base station sends in the described reception of the describedstep 401 of Figure 11 base station, can comprise: being used to of receiving that information that the base station reduces according to the average uplink throughput of a plurality of base stations sends reduces the power of the uplink transmission power of via node and adjusts signal; Adjusting signal according to described power and adjust uplink transmission power described in thestep 402 comprises: adjust signal according to described power and reduce uplink transmission power.

Figure 12 is the structural representation of an embodiment of base station of the present invention, and as shown in figure 12, acquisition module 31 and sending module 32, acquisition module 31 are used to obtain the average uplink throughput of a plurality of base stations; Sending module 32 is used for adjusting signal according to the change information of described average uplink throughput to the via node transmitted power, adjusts signal for described via node according to described power and adjusts uplink transmission power.Present embodiment is identical with the principle of Poewr control method embodiment shown in Figure 10, repeats no more.

The base station of present embodiment is by obtaining the average uplink throughput that is in its a plurality of eNodeB on every side, can know the situation of change of the uplink throughput of its a plurality of eNodeB on every side, make the base station of present embodiment can control the uplink transmission power of corresponding RN according to this average uplink throughput, and needn't allow RN always transmit, thereby avoided RN because the problem that the excessive uplink throughput to peripheral cell of uplink transmission power causes briquettability to disturb with maximum rated transmitting power.

Another embodiment of base station of the present invention on the basis of base station shown in Figure 12 further, acquisition module can comprise: first acquiring unit, this first acquiring unit are used to obtain the throughput statistics entity and the uplink throughput of a plurality of base stations is averaged handle the average uplink throughput of determining; Sending module can comprise: first transmitting element, this first transmitting element are used for when described average uplink throughput reduces, and the power that sends the uplink transmission power that is used to reduce described via node to described via node is adjusted signal.

The present embodiment base station is by obtaining the average uplink throughput that is in its a plurality of eNodeB on every side, can know the situation of change of the uplink throughput of its a plurality of eNodeB on every side, make the base station of present embodiment can control the uplink transmission power of corresponding RN according to the situation of change of this average uplink throughput, and needn't allow RN always transmit, thereby avoided RN because the problem that the excessive uplink throughput to peripheral cell of uplink transmission power causes briquettability to disturb with maximum rated transmitting power.

Another embodiment of base station of the present invention on the basis of base station shown in Figure 12 further, also comprise: power regulation module, this power regulation module is used for when described acquisition module obtains the average downlink throughput capacity of a plurality of base stations, adjusts the down transmitting power of self according to the change information of described average downlink throughput capacity.

The present embodiment base station is by obtaining the average downlink throughput capacity that is in its a plurality of eNodeB on every side, can know the situation of change of the average downlink throughput capacity of its a plurality of eNodeB on every side, make the base station of present embodiment can adjust the down transmitting power of himself according to the situation of change of this average downlink throughput capacity, and needn't allow current eNodeB always transmit, thereby avoided eNodeB because the problem that the excessive downlink throughput capacity to peripheral cell of down transmitting power causes briquettability to disturb with maximum rated transmitting power.

Figure 13 is the structural representation of another embodiment of via node of the present invention, and as shown in figure 13, the via node of present embodiment comprises:receiver module 41 and power regulation module 42.Thisreceiver module 41 is used to receive the base station and adjusts signal according to the power of the average uplink throughput transmission of a plurality of base stations around the described base station;Power regulation module 42 is used for adjusting signal according to described power and adjusts uplink transmission power.Present embodiment is identical with the principle of power regulating method embodiment shown in Figure 11, repeats no more.

The RN of present embodiment obtains the average throughput that is in its a plurality of eNodeB on every side by current eNodeB, can be so that current eNodeB be known the uplink throughput situation of change of its a plurality of eNodeB on every side, make current eNodeB can control the uplink transmission power of corresponding RN according to the situation of change of this average uplink throughput, and needn't allow RN always transmit, thereby avoided RN because the problem that the excessive uplink throughput to peripheral cell of uplink transmission power causes briquettability to disturb with maximum rated transmitting power.

Via node of the present invention also an embodiment on the basis of RN shown in Figure 13, further, receiver module can comprise: first receiving element, this first receiving element are used to receive the power that information that the base station reduces according to the average uplink throughput of a plurality of base stations around the described base station sends is used to reduce the uplink transmission power of via node and adjust signal; Power regulation module can comprise: first power adjustment unit, this first power adjustment unit are used for adjusting signal according to described power and reduce uplink transmission power.

Present embodiment obtains the average uplink throughput that is in its a plurality of eNodeB on every side by current eNodeB, can be so that current eNodeB be known the uplink throughput situation of change of its a plurality of eNodeB on every side, make current eNodeB can control the uplink transmission power of corresponding RN according to the situation of change of this average uplink throughput, and needn't allow RN always transmit, thereby avoided RN because the problem that the excessive uplink throughput to peripheral cell of uplink transmission power causes briquettability to disturb with maximum rated transmitting power.

Another embodiment of power control system of the present invention comprises: base station and via node, and described base station is used to obtain the average uplink throughput of a plurality of base stations; Change information according to described average uplink throughput is adjusted signal to the via node transmitted power; Described via node is used to receive the power adjustment signal that the base station sends, and adjusts signal according to described power and adjust uplink transmission power.

The system of present embodiment is by obtaining the average uplink throughput that is in current eNodeB a plurality of eNodeB on every side, can be so that current eNodeB be known the situation of change of its a plurality of eNodeB uplink throughputs on every side, make current eNodeB can control the uplink transmission power of corresponding RN according to the situation of change of this average uplink throughput, and needn't allow RN always transmit, thereby avoided RN because the problem that the excessive uplink throughput to peripheral cell of uplink transmission power causes briquettability to disturb with maximum rated transmitting power.

Among another embodiment of power control system of the present invention, described base station also is used to obtain the average downlink throughput capacity of a plurality of base stations, and adjusts the down transmitting power of base station self according to the change information of described average downlink throughput capacity.

The system of present embodiment is by obtaining the average downlink throughput capacity that is in its a plurality of eNodeB on every side, can know the situation of change of the average downlink throughput capacity of its a plurality of eNodeB on every side, make the base station of present embodiment can adjust the down transmitting power of himself according to the situation of change of this average downlink throughput capacity, and needn't allow current eNodeB always transmit, thereby avoided eNodeB because the problem that the excessive downlink throughput capacity to peripheral cell of down transmitting power causes briquettability to disturb with maximum rated transmitting power.

It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.

Claims

Translated fromChinese

1.一种功率控制方法，其特征在于，包括：1. A power control method, characterized in that, comprising:

接收基站下发的第一参数信息并计算获取第二参数信息；receiving the first parameter information issued by the base station and calculating and obtaining the second parameter information;

将所述第一参数信息和第二参数信息发送给用户终端，供所述用户终端根据所述第一参数信息和第二参数信息调整上行发射功率。Sending the first parameter information and the second parameter information to the user terminal for the user terminal to adjust uplink transmission power according to the first parameter information and the second parameter information.

2.根据权利要求1所述的功率控制方法，其特征在于，所述接收基站下发的第一参数信息包括：接收基站根据路径损耗参考值、中继节点位置坐标和路径调节参数计算获取并下发的路径损耗校正信息；2. The power control method according to claim 1, wherein the first parameter information issued by the receiving base station comprises: the receiving base station calculates and obtains the information according to the path loss reference value, the relay node position coordinates, and the path adjustment parameters, and issued path loss correction information;

所述计算获取第二参数信息包括：计算获取小区功率控制参数、资源分配信息、编码速率信息以及信噪比补偿信息。The calculating and obtaining the second parameter information includes: calculating and obtaining cell power control parameters, resource allocation information, coding rate information, and signal-to-noise ratio compensation information.

3.根据权利要求2所述的功率控制方法，其特征在于，所述用户终端根据所述第一参数信息和第二参数信息调整上行发射功率，包括：3. The power control method according to claim 2, wherein the user terminal adjusts uplink transmission power according to the first parameter information and the second parameter information, comprising:

所述用户终端根据所述路径损耗校正信息计算获取路径损耗参数值，并根据所述小区功率控制参数、路径损耗参数值、资源分配信息、编码速率信息以及信噪比补偿信息计算获取上行发射功率参考值；The user terminal calculates and acquires the path loss parameter value according to the path loss correction information, and calculates and acquires the uplink transmission power according to the cell power control parameter, the path loss parameter value, resource allocation information, coding rate information, and signal-to-noise ratio compensation information Reference;

根据所述上行发射功率参考值和上行最大额定发射功率中小的一个调整所述用户终端的上行发射功率。Adjusting the uplink transmit power of the user terminal according to the smaller one of the uplink transmit power reference value and the uplink maximum rated transmit power.

4.根据权利要求1所述的功率控制方法，其特征在于，所述接收基站下发的第一参数信息包括：接收基站下发的资源分配信息、信噪比目标信息以及基站根据路径损耗参考值、中继节点位置坐标和路径调节参数计算获取的路径损耗校正信息；4. The power control method according to claim 1, wherein the receiving the first parameter information issued by the base station includes: receiving resource allocation information issued by the base station, signal-to-noise ratio target information, and the base station according to the path loss reference value, relay node position coordinates, and path loss correction information calculated by path adjustment parameters;

所述计算获取第二参数信息包括：根据所述资源分配信息计算获取编码速率信息，根据所述信噪比目标信息计算获取信噪比补偿信息，并根据所述信噪比目标信息计算获取功率调整步长信息。The calculating and acquiring the second parameter information includes: calculating and acquiring coding rate information according to the resource allocation information, calculating and acquiring signal-to-noise ratio compensation information according to the signal-to-noise ratio target information, and calculating and acquiring power according to the signal-to-noise ratio target information Adjust step size information.

5.根据权利要求4所述的功率控制方法，其特征在于，所述用户终端根据所述第一参数信息和第二参数信息调整上行发射功率，包括：5. The power control method according to claim 4, wherein the user terminal adjusts uplink transmission power according to the first parameter information and the second parameter information, comprising:

所述用户终端根据所述路径损耗校正信息计算获取路径损耗参数值，并根据所述小区功率控制参数、路径损耗参数值、资源分配信息、编码速率信息、信噪比补偿信息以及功率调整步长信息计算获取上行发射功率参考值；The user terminal calculates and obtains a path loss parameter value according to the path loss correction information, and adjusts the step size according to the cell power control parameter, path loss parameter value, resource allocation information, coding rate information, signal-to-noise ratio compensation information, and power Information calculation to obtain the reference value of uplink transmission power;

6.一种功率调整方法，其特征在于，包括：6. A power adjustment method, characterized in that, comprising:

接收基站通过中继节点转发的第一参数信息以及中继节点计算获取并发送的第二参数信息；receiving the first parameter information forwarded by the base station through the relay node and the second parameter information calculated and acquired by the relay node and sent;

根据所述第一参数信息和所述第二参数信息调整上行发射功率。Adjusting uplink transmit power according to the first parameter information and the second parameter information.

7.根据权利要求6所述的功率调整方法，其特征在于，所述接收基站通过中继节点转发的第一参数信息，包括：接收基站通过中继节点发送的基站根据路径损耗参考值、中继节点位置坐标和路径调节参数计算获取的路径损耗校正信息；7. The power adjustment method according to claim 6, wherein the receiving the first parameter information forwarded by the base station through the relay node comprises: receiving the base station's path loss reference value, medium parameter information sent by the base station through the relay node Path loss correction information obtained through calculation of node position coordinates and path adjustment parameters;

接收中继节点计算获取并发送的第二参数信息，包括：接收中继节点计算获取并发送的小区功率控制参数、资源分配信息、编码速率信息以及信噪比补偿信息。Receiving the second parameter information calculated and acquired by the relay node and sent includes: receiving cell power control parameters, resource allocation information, coding rate information and signal-to-noise ratio compensation information acquired and transmitted by the relay node.

8.根据权利要求7所述的功率调整方法，其特征在于，所述根据所述第一参数信息和第二参数信息调整上行发射功率，包括：8. The power adjustment method according to claim 7, wherein the adjusting the uplink transmit power according to the first parameter information and the second parameter information comprises:

根据所述路径损耗校正信息计算获取路径损耗参数值，并根据所述小区功率控制参数、路径损耗参数值、资源分配信息、编码速率信息以及信噪比补偿信息计算获取上行发射功率参考值；Calculate and acquire a path loss parameter value according to the path loss correction information, and calculate and acquire an uplink transmit power reference value according to the cell power control parameter, path loss parameter value, resource allocation information, coding rate information, and signal-to-noise ratio compensation information;

9.根据权利要去6所述的功率调整方法，其特征在于，所述接收基站通过中继节点转发的第一参数信息，包括：接收基站通过中继节点发送的资源分配信息、信噪比目标信息以及基站根据路径损耗参考值、中继节点位置坐标和路径调节参数计算获取的路径损耗校正信息；9. The power adjustment method according to claim 6, wherein said receiving the first parameter information forwarded by the base station through the relay node includes: receiving resource allocation information and signal-to-noise ratio sent by the base station through the relay node The target information and the path loss correction information calculated and obtained by the base station according to the path loss reference value, the relay node position coordinates and the path adjustment parameters;

接收中继节点计算获取并发送的第二参数信息，包括：接收中继节点根据所述资源分配信息计算获取并发送的编码速率信息以及根据所述信噪比目标信息计算获取并发送的信噪比补偿信息，以及中继节点根据所述信噪比目标信息计算获取并发送的功率调整步长信息。Receiving the second parameter information calculated and transmitted by the relay node includes: receiving the coding rate information calculated and transmitted by the relay node according to the resource allocation information and the signal-to-noise ratio calculated and transmitted according to the signal-to-noise ratio target information The ratio compensation information, and the power adjustment step size information calculated and acquired by the relay node according to the signal-to-noise ratio target information and sent.

10.根据权利要求9所述的功率调整方法，其特征在于，所述根据所述第一参数信息和第二参数信息调整上行发射功率，包括：10. The power adjustment method according to claim 9, wherein the adjusting the uplink transmit power according to the first parameter information and the second parameter information comprises:

根据所述路径损耗校正信息计算获取路径损耗参数值，并根据所述小区功率控制参数、路径损耗参数值、资源分配信息、编码速率信息、信噪比补偿信息以及功率调整步长信息计算获取上行发射功率参考值；Calculate and obtain the path loss parameter value according to the path loss correction information, and calculate and obtain the uplink according to the cell power control parameter, path loss parameter value, resource allocation information, coding rate information, signal-to-noise ratio compensation information and power adjustment step information transmit power reference value;

11.一种中继节点，其特征在于，包括：11. A relay node, characterized in that it comprises:

接收处理模块，用于接收基站下发的第一参数信息并计算获取第二参数信息；A receiving processing module, configured to receive the first parameter information issued by the base station and calculate and obtain the second parameter information;

发送模块，用于将所述接收处理模块获取的第一参数信息和第二参数信息发送给用户终端，供所述用户终端根据所述第一参数信息和第二参数信息调整上行发射功率。A sending module, configured to send the first parameter information and the second parameter information acquired by the receiving processing module to a user terminal for the user terminal to adjust uplink transmission power according to the first parameter information and the second parameter information.

12.根据权利要求11所述的中继节点，其特征在于，所述接收处理模块，包括：12. The relay node according to claim 11, wherein the receiving processing module comprises:

第一接收单元，用于接收基站根据路径损耗参考值、中继节点位置坐标和路径调节参数计算获取并下发的路径损耗校正信息；The first receiving unit is configured to receive the path loss correction information calculated and delivered by the base station according to the path loss reference value, the relay node position coordinates, and the path adjustment parameters;

第一处理单元，用于计算获取小区功率控制参数、资源分配信息、编码速率信息以及信噪比补偿信息。The first processing unit is configured to calculate and obtain cell power control parameters, resource allocation information, coding rate information, and signal-to-noise ratio compensation information.

13.根据权利要求11所述的中继节点，其特征在于，所述接收处理模块，包括：13. The relay node according to claim 11, wherein the receiving processing module comprises:

第二接收单元，用于接收基站下发的资源分配信息、信噪比目标信息以及基站根据路径损耗参考值、中继节点位置坐标和路径调节参数计算获取的路径损耗校正信息；The second receiving unit is configured to receive the resource allocation information issued by the base station, the signal-to-noise ratio target information, and the path loss correction information calculated and obtained by the base station according to the path loss reference value, the relay node position coordinates, and the path adjustment parameters;

第二处理单元，用于根据所述资源分配信息计算获取编码速率信息，根据所述信噪比目标信息计算获取信噪比补偿信息，并根据所述信噪比目标信息计算获取功率调整步长信息。The second processing unit is configured to calculate and acquire coding rate information according to the resource allocation information, calculate and acquire signal-to-noise ratio compensation information according to the signal-to-noise ratio target information, and calculate and acquire power adjustment step size according to the signal-to-noise ratio target information information.

14.一种用户终端，其特征在于，包括：14. A user terminal, characterized in that it comprises:

接收模块，用于接收基站通过中继节点转发的第一参数信息以及中继节点计算获取并发送的第二参数信息；A receiving module, configured to receive the first parameter information forwarded by the base station through the relay node and the second parameter information calculated, obtained and sent by the relay node;

调整模块，用于根据所述第一参数信息和第二参数信息调整上行发射功率。An adjustment module, configured to adjust uplink transmission power according to the first parameter information and the second parameter information.

15.根据权利要求14所述的用户终端，其特征在于，所述接收模块接收的第一参数信息包括：基站根据路径损耗参考值、中继节点位置坐标和路径调节参数计算获取的路径损耗校正信息；所述接收模块接收的第二参数信息包括：小区功率控制参数、资源分配信息、编码速率信息以及信噪比补偿信息。15. The user terminal according to claim 14, wherein the first parameter information received by the receiving module includes: the path loss correction calculated and obtained by the base station according to the path loss reference value, the relay node position coordinates, and the path adjustment parameters Information; the second parameter information received by the receiving module includes: cell power control parameters, resource allocation information, coding rate information, and signal-to-noise ratio compensation information.

16.根据权利要求15所述的用户终端，其特征在于，所述调整模块包括：16. The user terminal according to claim 15, wherein the adjustment module comprises:

第一计算处理单元，用于根据所述路径损耗校正信息计算获取路径损耗参数值，并根据所述小区功率控制参数、路径损耗参数值、资源分配信息、编码速率信息以及信噪比补偿信息计算获取上行发射功率参考值；The first calculation processing unit is configured to calculate and obtain the path loss parameter value according to the path loss correction information, and calculate according to the cell power control parameter, path loss parameter value, resource allocation information, coding rate information, and signal-to-noise ratio compensation information Obtain the uplink transmit power reference value;

第一调整处理单元，用于根据所述上行发射功率参考值和上行最大额定发射功率中小的一个调整所述用户终端的上行发射功率。A first adjustment processing unit, configured to adjust the uplink transmit power of the user terminal according to the smaller one of the uplink transmit power reference value and the uplink maximum rated transmit power.

17.根据权利要求14所述的用户终端，其特征在于，所述接收模块接收的第一参数信息包括：资源分配信息、信噪比目标信息以及基站根据路径损耗参考值、中继节点位置坐标和路径调节参数计算获取的路径损耗校正信息；所述接收模块接收的第二参数信息包括：中继节点根据所述资源分配信息计算获取并发送的编码速率信息、中继节点根据所述信噪比目标信息计算获取并发送的信噪比补偿信息，以及中继节点根据所述信噪比目标信息计算获取并发送的功率调整步长信息。17. The user terminal according to claim 14, wherein the first parameter information received by the receiving module includes: resource allocation information, signal-to-noise ratio target information, and the base station according to the path loss reference value, the relay node position coordinates and the path loss correction information obtained by calculating and obtaining the path adjustment parameters; the second parameter information received by the receiving module includes: the coding rate information obtained and sent by the relay node according to the resource allocation information, the relay node according to the signal-to-noise The signal-to-noise ratio compensation information is calculated and transmitted based on the signal-to-noise ratio target information, and the power adjustment step size information is calculated and transmitted by the relay node according to the signal-to-noise ratio target information.

18.根据权利要求17所述的用户终端，其特征在于，所述调整模块包括：18. The user terminal according to claim 17, wherein the adjustment module comprises:

第二计算处理单元，用于根据所述路径损耗校正信息计算获取路径损耗参数值，并根据所述小区功率控制参数、路径损耗参数值、资源分配信息、编码速率信息、信噪比补偿信息以及功率调整步长信息计算获取上行发射功率参考值；The second calculation and processing unit is configured to calculate and obtain a path loss parameter value according to the path loss correction information, and obtain a path loss parameter value according to the cell power control parameter, path loss parameter value, resource allocation information, coding rate information, signal-to-noise ratio compensation information, and The power adjustment step size information is calculated to obtain the reference value of the uplink transmission power;

第二调整处理单元，用于根据所述上行发射功率参考值和上行最大额定发射功率中小的一个调整所述用户终端的上行发射功率。The second adjustment processing unit is configured to adjust the uplink transmit power of the user terminal according to the smaller one of the uplink transmit power reference value and the uplink maximum rated transmit power.

19.一种功率控制系统，其特征在于，包括：基站和中继节点，19. A power control system, comprising: a base station and a relay node,

所述基站，用于向所述中继节点发送第一参数信息；The base station is configured to send first parameter information to the relay node;

所述中继节点，用于接收所述基站发送的第一参数信息，计算获取第二参数信息，并将所述第一参数信息和第二参数信息发送给用户终端，供所述用户终端根据所述第一参数信息和第二参数信息调整上行发射功率。The relay node is configured to receive the first parameter information sent by the base station, calculate and obtain the second parameter information, and send the first parameter information and the second parameter information to the user terminal for the user terminal to use according to The first parameter information and the second parameter information adjust uplink transmission power.

20.一种功率控制方法，其特征在于，包括：20. A power control method, comprising:

获取多个基站的平均上行吞吐量；Obtain the average uplink throughput of multiple base stations;

根据所述平均上行吞吐量的变化信息向中继节点发送功率调整信号，供所述中继节点根据所述功率调整信号调整上行发射功率。Sending a power adjustment signal to the relay node according to the change information of the average uplink throughput, for the relay node to adjust uplink transmit power according to the power adjustment signal.

21.根据权利要求20所述的功率控制方法，其特征在于，所述获取多个基站的平均上行吞吐量，包括：获取吞吐量统计实体对多个基站的上行吞吐量进行平均处理确定的平均上行吞吐量；21. The power control method according to claim 20, wherein said obtaining the average uplink throughput of a plurality of base stations comprises: obtaining the average throughput determined by the throughput statistics entity for performing average processing on the uplink throughput of a plurality of base stations Uplink throughput;

根据所述平均上行吞吐量的变化信息向中继节点发送功率调整信号，包括：若所述平均上行吞吐量减小，则向所述中继节点发送用于降低所述中继节点的上行发射功率的功率调整信号。Sending a power adjustment signal to the relay node according to the change information of the average uplink throughput includes: if the average uplink throughput decreases, sending a signal for reducing the uplink transmission of the relay node to the relay node Power adjustment signal for power.

22.根据权利要求20或21所述的功率控制方法，其特征在于，还包括：22. The power control method according to claim 20 or 21, further comprising:

获取多个基站的平均下行吞吐量；Obtain the average downlink throughput of multiple base stations;

根据所述平均下行吞吐量的变化信息调整自身的下行发射功率。Adjusting its own downlink transmit power according to the change information of the average downlink throughput.

23.根据权利要求22所述的功率控制方法，其特征在于，所述获取多个基站的平均下行吞吐量，包括：获取吞吐量统计实体对多个基站的下行吞吐量进行平均处理确定的平均下行吞吐量；23. The power control method according to claim 22, wherein said obtaining the average downlink throughput of a plurality of base stations comprises: obtaining the average throughput determined by the throughput statistics entity for performing average processing on the downlink throughput of a plurality of base stations Downlink throughput;

根据所述平均下行吞吐量的变化信息调整自身的下行发射功率，包括：若所述平均下行吞吐量减小，则降低向中继节点发送信号的下行发射功率。Adjusting its own downlink transmission power according to the change information of the average downlink throughput includes: reducing the downlink transmission power for sending signals to the relay node if the average downlink throughput decreases.

24.一种功率调整方法，其特征在于，包括：24. A power adjustment method, comprising:

接收基站根据所述基站周围的多个基站的平均上行吞吐量的变化信息发送的功率调整信号；receiving a power adjustment signal sent by the base station according to the change information of the average uplink throughput of multiple base stations around the base station;

根据所述功率调整信号调整上行发射功率。Adjust uplink transmission power according to the power adjustment signal.

25.根据权利要求24所述的功率调整方法，其特征在于，所述接收基站根据所述基站周围的多个基站的平均上行吞吐量的变化信息发送的功率调整信号，包括：接收基站根据多个基站的平均上行吞吐量降低的信息发送的用于降低中继节点的上行发射功率的功率调整信号；25. The power adjustment method according to claim 24, wherein the receiving the power adjustment signal sent by the base station according to the change information of the average uplink throughput of multiple base stations around the base station comprises: receiving the power adjustment signal sent by the base station according to the multiple The power adjustment signal used to reduce the uplink transmission power of the relay node is sent by the information of the average uplink throughput reduction of the base stations;

所述根据所述功率调整信号调整上行发射功率，包括：根据所述功率调整信号降低上行发射功率。The adjusting the uplink transmission power according to the power adjustment signal includes: reducing the uplink transmission power according to the power adjustment signal.

26.一种基站，其特征在于，包括：26. A base station, comprising:

获取模块，用于获取多个基站的平均上行吞吐量；An acquisition module, configured to acquire the average uplink throughput of multiple base stations;

发送模块，用于根据所述平均上行吞吐量的变化信息向中继节点发送功率调整信号，供所述中继节点根据所述功率调整信号调整上行发射功率。A sending module, configured to send a power adjustment signal to the relay node according to the change information of the average uplink throughput, for the relay node to adjust uplink transmission power according to the power adjustment signal.

27.根据权利要求26所述的基站，其特征在于，所述获取模块包括：第一获取单元，用于获取吞吐量统计实体对多个基站的上行吞吐量进行平均处理确定的平均上行吞吐量；27. The base station according to claim 26, wherein the acquiring module comprises: a first acquiring unit, configured to acquire the average uplink throughput determined by the average processing of the uplink throughput of a plurality of base stations by the throughput statistics entity ;

所述发送模块包括：第一发送单元，用于在所述平均上行吞吐量减小时，向所述中继节点发送用于降低所述中继节点的上行发射功率的功率调整信号。The sending module includes: a first sending unit, configured to send a power adjustment signal for reducing uplink transmission power of the relay node to the relay node when the average uplink throughput decreases.

28.根据权利要求26或27所述的基站，其特征在于，还包括：功率调整模块，用于在所述获取模块获取多个基站的平均下行吞吐量时，根据所述平均下行吞吐量的变化信息调整自身的下行发射功率。28. The base station according to claim 26 or 27, further comprising: a power adjustment module, configured to, when the obtaining module obtains the average downlink throughput of a plurality of base stations, according to the average downlink throughput of the The change information adjusts its own downlink transmit power.

29.一种中继节点，其特征在于，包括：29. A relay node, comprising:

接收模块，用于接收基站根据所述基站周围的多个基站的平均上行吞吐量的变化信息发送的功率调整信号；A receiving module, configured to receive a power adjustment signal sent by the base station according to the change information of the average uplink throughput of multiple base stations around the base station;

功率调整模块，用于根据所述功率调整信号调整上行发射功率。A power adjustment module, configured to adjust uplink transmit power according to the power adjustment signal.

30.根据权利要求29所述的中继节点，其特征在于，所述接收模块包括：第一接收单元，用于接收基站根据所述基站周围的多个基站的平均上行吞吐量降低的信息发送的用于降低中继节点的上行发射功率的功率调整信号；30. The relay node according to claim 29, wherein the receiving module comprises: a first receiving unit, configured to receive information sent by the base station according to the average uplink throughput reduction of multiple base stations around the base station A power adjustment signal for reducing the uplink transmission power of the relay node;

所述功率调整模块包括：第一功率调整单元，用于根据所述功率调整信号降低上行发射功率。The power adjustment module includes: a first power adjustment unit, configured to reduce uplink transmission power according to the power adjustment signal.

31.一种功率控制系统，其特征在于，包括：基站和中继节点，31. A power control system, comprising: a base station and a relay node,

所述基站，用于获取多个基站的平均上行吞吐量；根据所述平均吞吐量的变化信息向中继节点发送功率调整信号；The base station is configured to obtain the average uplink throughput of multiple base stations; send a power adjustment signal to the relay node according to the change information of the average throughput;

所述中继节点，用于接收基站发送的功率调整信号，并根据所述功率调整信号调整上行发射功率。The relay node is configured to receive a power adjustment signal sent by the base station, and adjust uplink transmission power according to the power adjustment signal.

32.根据权利要求31所述的功率控制系统，其特征在于，所述基站还用于获取多个基站的平均下行吞吐量，并根据所述平均下行吞吐量的变化信息调整基站自身的下行发射功率。32. The power control system according to claim 31, wherein the base station is further configured to obtain the average downlink throughput of multiple base stations, and adjust the downlink transmission of the base station itself according to the change information of the average downlink throughput power.