CN101932088A

CN101932088A - Power control and regulation methods and device

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: WO2010148949A1; CN101932088B

Abstract

The invention relates to power control and regulation methods and device. The power control method comprises the steps of: receiving the first parameter information distributed by a base station and computing to obtain the second parameter information; and sending the first parameter information and the second parameter information to a user terminal so that the user terminal can regulate an uplink transmission power according to the first parameter information and the second parameter information. The power regulation method comprises the steps of: receiving the first parameter information transferred by the base station through a relay node and the second parameter information computed and sent by the relay node; and regulating the uplink transmission power according to the first parameter information and the second parameter information. When the RN (relay node) is adopted to control and regulate the uplink transmission power of the UE (user equipment), the delay is relatively low the control and the regulation of the uplink transmission power of the UE by the RN is improved, the precision of regulating uplink transmission power of the UE is improved and the error of regulating uplink transmission power of the UE is reduced.

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 that step 101, reception base station issue also calculates and obtains second parameter information;

For instance, RN can receive first parameter information that the base station issues, and this first parameter information can be UE required supplementary, for example cell power Control Parameter path loss control information and signal to noise ratio target information etc. when adjusting uplink transmission power.Wherein, the signal to noise ratio target information can be empirical value, and path loss control information can be regulated calculation of parameter by path loss reference value, via node position coordinates and path and be obtained.In specific implementation, the base station can be permitted signaling by scheduling first parameter information is passed to RN.And RN itself can also calculate and obtain second parameter information, and this second parameter information can be UE required control information when adjusting uplink transmission power.This second parameter information can comprise: cell power Control Parameter, resource allocation information, code rate information and signal to noise ratio compensated information etc.This shows, in the step 101, 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, and 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.

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.

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.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.

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 the step 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 the step 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 P ₀, 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 P ₀, 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.

After UE gets access to this uplink transmission power reference value, this uplink transmission power reference value and up maximum rated transmitting power can be compared, and get one less in this uplink transmission power reference value and the up maximum rated transmitting power, as the uplink transmission power of UE, thereby realize that RN controls the adjustment of UE uplink transmission power.Because 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 the adjustment error uplink transmission power.

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 P ₀And 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 P ₀, 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 via node step 201, reception base station calculate second parameter information that obtains and send;

For instance, RN can receive first parameter information that the base station issues, and this first parameter information can be UE required supplementary, for example path loss control information and signal to noise ratio target information etc. when adjusting uplink transmission power.Wherein, the signal to noise ratio target information can be empirical value, and path loss control information can be regulated calculation of parameter by path loss reference value, via node position coordinates and path and be obtained.In specific implementation, the base station can be permitted signaling by scheduling first parameter information is passed to RN.And RN itself can also calculate and obtain second parameter information, and this second parameter information can be UE required control information when adjusting uplink transmission power.This second parameter information can comprise: cell power Control Parameter, resource allocation information, code rate information and signal to noise ratio compensated information etc.This shows, in the step 201, 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, and 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.

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 the step 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 the step 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 P ₀, 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 P ₀And 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 P ₀, 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: receiving processing module 11 and sending module 12, and wherein receiving processing 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 sending module 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: receiving processing module 11 and sending module 12, and wherein receiving processing 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 sending module 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 receiving processing module 11 can comprise: first receiving element 111 and first processing unit, 112, the first receiving elements 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 processing unit 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 receiving element 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 P ₀

Sending module 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 P ₀, 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.

After UE gets access to this uplink transmission power reference value, this uplink transmission power reference value and up maximum rated transmitting power can be compared, and get one less in this uplink transmission power reference value and the up maximum rated transmitting power, as the uplink transmission power of UE, thereby realize that RN controls the adjustment of UE uplink transmission power.Because 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. 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: receiving processing module 11 and sending module 12, and wherein receiving processing 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 sending module 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 receiving processing module 11 can comprise: second receiving element 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 receiving element 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 P ₀Can 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 P ₀And second 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.

Sending module 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 P ₀, 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 receiving element 111, first processing unit 112, second receiving element 113 and second processing unit 114 also can be combined in this receiving processing 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 adjusting module 22, this receiver 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; Adjusting module 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 adjusting module 22, this receiver 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; Adjusting module 22 is used for adjusting uplink transmission power according to described first parameter information and second parameter information.

Further, first parameter information of receiver 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 that receiver module 21 receives comprises: cell power Control Parameter, resource allocation information, code rate information and signal to noise ratio compensated information.Correspondingly, this adjusting module 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 processing unit 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 adjusting module 22, this receiver 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; Adjusting module 22 is used for adjusting uplink transmission power according to described first parameter information and second parameter information.

Further, first parameter information of receiver 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 that receiver 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 adjusting module 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 adjusted processing unit 222, second calculation processing unit 223 and second is adjusted processing unit 224 and also can be combined in this adjusting 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 via node 2, base station 1 are used for sending first parameter information to via node 2; Via node 2 is used to receive first parameter information that base 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 described step 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 the step 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.

In the specific implementation process, the down transmitting power of eNodeB can be divided into the first down transmitting power P of the transmitting power that comprises reference signal _A(i) and not the second down transmitting power PB (i) that comprises the transmitting power of reference signal.Correspondingly, current eNodeB can be provided with initializaing variable Δ A=adB, Δ B=bdB, and will send the first required down transmitting power P of signal to RN _A(i) be made as power initial value P _Amax-Δ A is with the second down transmitting power P _B(i) be made as power initial value P _Bmax-Δ B, wherein P _AmaxBe maximum first down transmitting power, P _BmaxBe maximum second down transmitting power.In each power control period, current eNodeB can obtain average downlink throughput capacity Tu from SON, when if this average uplink throughput Tu reduces, can be when decrease surpasses a certain threshold value in scope sometime during practical operation, Δ A=Δ A+Step_d then; Δ B=Δ B+Step_d, i=i+1, wherein Step_d is for regulating step-length.Adopt Δ A=Δ A+Step_d; Δ B=Δ B+Step_d, i=i+1 is to the first down transmitting power P of current eNodeB _A(i) and the second down transmitting power P _B(i) upgrade, when power control period finished, current eNodeB can determine the first final down transmitting power and second down transmitting power, thereby sent signal according to final first down transmitting power and second down transmitting power of determining to RN.

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 in step 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 described step 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 the step 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.This receiver 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

1. a Poewr control method is characterized in that, comprising:

2. Poewr control method according to claim 1, it is characterized in that first parameter information that described reception base station issues comprises: 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;

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.

3. Poewr control method according to claim 2 is characterized in that, described user terminal is adjusted uplink transmission power according to described first parameter information and second parameter information, comprising:

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.

4. Poewr control method according to claim 1, it is characterized in that 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;

Described calculating is obtained second parameter information and is comprised: calculate the code rate information of obtaining according to described resource allocation information, obtain the signal to noise ratio compensated information according to described signal to noise ratio target information calculating, and calculate the power adjustment step-length information of obtaining according to described signal to noise ratio target information.

5. Poewr control method according to claim 4 is characterized in that, described user terminal is adjusted uplink transmission power according to described first parameter information and second parameter information, comprising:

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;

6. a power regulating method is characterized in that, comprising:

7. power regulating method according to claim 6, it is characterized in that, first parameter information that transmit by via node described reception base station comprises: 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;

Receive via node and calculate second parameter information that obtains and send, comprising: 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.

8. power regulating method according to claim 7 is characterized in that, and is described according to described first parameter information and second parameter information adjustment uplink transmission power, comprising:

Obtain path loss parameter values according to described path loss control information calculating, 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;

9. to remove 6 described power regulating methods according to right, it is characterized in that, first parameter information that transmit by via node described reception base station comprises: 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;

Receive via node and calculate second parameter information that obtains and send, 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.

10. power regulating method according to claim 9 is characterized in that, and is described according to described first parameter information and second parameter information adjustment uplink transmission power, comprising:

Obtain path loss parameter values according to described path loss control information calculating, 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;

11. a via node is characterized in that, comprising:

12. via node according to claim 11 is characterized in that, described receiving processing module comprises:

First receiving element is used to receive the base station and regulates 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 processing unit is used for calculating and obtains cell power Control Parameter, resource allocation information, code rate information and signal to noise ratio compensated information.

13. via node according to claim 11 is characterized in that, described receiving processing module comprises:

Second receiving element 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 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.

14. a user terminal is characterized in that, comprising:

15. user terminal according to claim 14, it is characterized in that first parameter information that described receiver module receives 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 that described receiver module receives comprises: cell power Control Parameter, resource allocation information, code rate information and signal to noise ratio compensated information.

16. user terminal according to claim 15 is characterized in that, described adjusting module comprises:

First calculation processing unit, be used for obtaining 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 described path loss control information calculating;

First adjusts processing unit, 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.

17. user terminal according to claim 14, it is characterized in that first parameter information that described receiver module receives 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 that described receiver module receives comprises: via node calculates the code rate information, the via node that obtain and send according to described resource allocation information and calculates the signal to noise ratio compensated information that obtains and send according to described signal to noise ratio target information, and via node calculates the power adjustment step-length information of obtaining and sending according to described signal to noise ratio target information.

18. user terminal according to claim 17 is characterized in that, described adjusting module comprises:

Second calculation processing unit, be used for obtaining 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 described path loss control information calculating;

Second adjusts processing unit, 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.

19. a power control system is characterized in that, comprising: base station and via node,

20. a Poewr control method is characterized in that, comprising:

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

21. Poewr control method according to claim 20, it is characterized in that, the described average uplink throughput of obtaining a plurality of base stations comprises: obtain the throughput statistics entity and the uplink throughput of a plurality of base stations is averaged handle the average uplink throughput of determining;

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

22. according to claim 20 or 21 described Poewr control methods, it is characterized in that, also comprise:

Obtain the average downlink throughput capacity of a plurality of base stations;

Adjust the down transmitting power of self according to the change information of described average downlink throughput capacity.

23. Poewr control method according to claim 22, it is characterized in that, 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.

24. a power regulating method is characterized in that, comprising:

25. power regulating method according to claim 24, it is characterized in that, 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 described reception base station, comprising: 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;

Described according to described power adjustment signal adjustment uplink transmission power, comprising: adjust signal according to described power and reduce uplink transmission power.

26. a base station is characterized in that, comprising:

27. base station according to claim 26 is characterized in that, described acquisition module comprises: first acquiring unit is used to obtain the throughput statistics entity and the uplink throughput of a plurality of base stations is averaged handles the average uplink throughput of determining;

Described sending module comprises: first transmitting element, be 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.

28. according to claim 26 or 27 described base stations, it is characterized in that, also comprise: power regulation module, be used for when described acquisition module obtains the average downlink throughput capacity of a plurality of base stations, adjust the down transmitting power of self according to the change information of described average downlink throughput capacity.

29. a via node is characterized in that, comprising:

Receiver module is used to receive the base station and adjusts 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;

30. via node according to claim 29, it is characterized in that, described receiver module comprises: first receiving element is 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 adjusts signal;

Described power regulation module comprises: first power adjustment unit is used for adjusting signal according to described power and reduces uplink transmission power.

31. a power control system is characterized in that, comprising: base station and via node,

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

32. power control system according to claim 31 is characterized in that, 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.