CN101932088B

CN101932088B - Power control and regulation methods and device

Info

Publication number: CN101932088B
Application number: CN200910150938.0A
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: 2014-02-26
Anticipated expiration: 2029-06-22
Also published as: CN101932088A; WO2010148949A1

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 present 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 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 the key technology such as Relay).These key technologies make LTE-A network provide higher peak rate for user terminal, thereby further improve service quality.Wherein, the function of Relay comprises the covering that expands 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, in this power control signal, can carry the various parameter informations that UE carries out uplink transmission power adjustment, then each RN sends to corresponding UE by this power control signal again, so that UE carries out the adjustment of uplink transmission power according to the various parameter informations in this power control signal.

Inventor, in realizing process of the present invention, finds that prior art at least exists following defect: because power control signal time delay in transmitting procedure is larger, cause UE lower to the adjustment precision of uplink transmission power.

Summary of the invention

The embodiment of the present invention provides a kind of power control, method of adjustment and device, larger with power control signal time delay in transmitting procedure in solution prior art, cause the problem that UE is lower to the adjustment precision of uplink transmission power, realize and improve the adjustment precision of UE to uplink transmission power, reduce the effect of alignment error.

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

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

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

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

The first parameter information and via node that reception base station forwards by via node calculate the second parameter information that obtains and send;

According to described the first parameter information and described the second parameter information, adjust uplink transmission power.

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

Receiving processing module, for receiving the first parameter information that base station issues and calculating and obtain the second parameter information;

Sending module, sends to user terminal for the first parameter information and the second parameter information that described receiving processing module is obtained, and for described user terminal, according to described the first parameter information and the second parameter information, adjusts uplink transmission power.

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

Receiver module, calculates for receiving the first parameter information and the via node that base station forwards by via node the second parameter information that obtains and send;

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

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

Described base station, for sending the first parameter information to described via node;

Described via node, the first parameter information sending for receiving described base station, the second parameter information is obtained in calculating, and described the first parameter information and the second parameter information are sent to user terminal, for described user terminal, according to described the first parameter information and the second parameter information, adjust uplink transmission power.

The embodiment of the present invention is calculated and is obtained the second parameter information by RN, and the first parameter information of this second parameter information and base station transmission is sent to UE, make under the control of the second parameter information that UE sends at RN, under the first parameter information auxiliary, realize the adjustment of uplink transmission power.Due to nearer the distance of the distance between RN and UE between base station and UE, therefore, the time delay that adopts RN to control UE adjustment uplink transmission power is less, thereby can improve RN and control the precision that UE adjusts uplink transmission power, further improve the adjustment precision of UE to uplink transmission power, reduce alignment error.

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

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

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

Receive the power adjustment signal that base station sends according to the change information of the average uplink throughput of a plurality of base stations around, described base station;

According to described power, adjust signal and adjust uplink transmission power.

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

Acquisition module, for obtaining the average uplink throughput of a plurality of base stations;

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

Receiver module, the power adjustment signal sending according to the change information of the average uplink throughput of a plurality of base stations around, described base station for receiving base station;

Power regulation module, adjusts uplink transmission power for adjusting signal according to described power.

Described base station, for obtaining the average uplink throughput of a plurality of base stations; According to the change information of described average uplink throughput, to via node transmitted power, adjust signal;

Described via node, the power adjustment signal sending for receiving base station, and according to described power, adjust signal and adjust uplink transmission power.

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

Accompanying drawing explanation

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

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 present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

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 the present embodiment comprises:

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

For instance, RN can receive the first parameter information that base station issues, and this first parameter information can be UE required supplementary while adjusting uplink transmission power, such as cell power, controls parameter path loss control information and signal to noise ratio target information etc.Wherein, signal to noise ratio target information can be empirical value, and path loss control information can regulate calculation of parameter to obtain by path loss reference value, via node position coordinates and path.In specific implementation, base station can be permitted signaling by scheduling the first parameter information is passed to RN.And RN itself can also calculate and obtain the second parameter information, this second parameter information can be UE required control information while adjusting uplink transmission power.This second parameter information can comprise: cell power is controlled parameter, resource allocation information, code rate information and signal to noise ratio compensated information etc.This shows, in step 101, supplementary when the first parameter information that 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 the parameter information lower to delay sensitive, therefore can not limit in time RN and control UE adjustment uplink transmission power.And the control information of UE while adjusting uplink transmission power calculated and obtained and issue by RN.Because the covering radius of base station is larger, and by contrast, RN is as the servicing unit communicating between base station and UE, its covering radius is less, therefore, adopt RN to calculate while obtaining above-mentioned parameter information, the span when span of the parameter adopting is obtained above-mentioned parameter information with respect to base station calculating is less.And, RN is with respect to base station, and the close together between UE, while therefore adopting RN to control the uplink transmission power of UE, time delay when its time delay is controlled with respect to base station reduces greatly, thereby can improve the control precision to UE uplink transmission power.

It should be noted that, the above-mentioned several information that may comprise in the first parameter information and the second parameter information that only provided, but be not limited to this several information, only need to make the first parameter information that base station issues is that UE adjusts the supplementary of uplink transmission power and for having time delay insensitivity, it is the control information that UE adjusts uplink transmission power that RN calculates the second parameter information obtaining.

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

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

The present embodiment is calculated and is obtained the second parameter information by RN, and the first parameter information of this second parameter information and base station transmission is sent to UE, make under the control of the second parameter information that UE sends at RN, under the first parameter information auxiliary, realize the adjustment of uplink transmission power.Due to nearer the distance of the distance between RN and UE between base station and UE, therefore, the time delay that adopts RN to control UE adjustment uplink transmission power is less, thereby can improve RN and control the precision that UE adjusts uplink transmission power, further improve the adjustment precision of UE to uplink transmission power, reduce alignment error.

In another embodiment of Poewr control method of the present invention, in step 101 shown in Fig. 1, the first parameter information that described reception base station issues can comprise: receive the path loss control information that base station cell power contorl parameters regulates calculation of parameter to obtain and issue according to path loss reference value, via node position coordinates and path; Described calculating is obtained the 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 step 102, described user terminal is adjusted uplink transmission power according to described the first parameter information and the second parameter information, comprise: described user terminal calculates acquisition approach loss parameter value according to described path loss control information, and 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 and obtain uplink transmission power reference value; According to 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 base station sends _i, θ _ifor slow running parameter, low to the sensitiveness of time delay, this θ _ican regulate calculation of parameter to obtain according to path loss reference value, via node position coordinates and path.Signaling can be permitted by θ by scheduling in 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 larger, and by contrast, RN is as the servicing unit communicating between base station and UE, its covering radius is less, therefore, adopt RN to calculate while obtaining above-mentioned parameter information, the span when span of the parameter adopting is obtained above-mentioned parameter information with respect to base station calculating is less.

RN can pass to UE by the above-mentioned parameter information obtaining.UE can be according to path loss control information θ _icalculate acquisition approach loss parameter value PL, 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 uplink transmission power reference value.In specific implementation process, UE can adopt formula: PL=θ _i* (Reference Signal Received Power after reference signal power-high-grade filting) calculating path loss parameter value PL, wherein the Reference Signal Received Power after reference signal power and high-grade filting is default reference value.

UE gets after 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 up maximum rated transmitting power, as the uplink transmission power of UE, thereby realize RN, the adjustment of UE uplink transmission power is controlled.Because the time delay that adopts RN to control UE adjustment uplink transmission power is less, thereby can improve RN, control the precision that UE adjusts uplink transmission power, further improve the adjustment precision of UE to uplink transmission power, reduce alignment error.

In another embodiment of Poewr control method of the present invention, in step 101 shown in Fig. 1, the first parameter information that described reception base station issues comprises: the path loss control information that resource allocation information, signal to noise ratio target information and the base station that reception base station issues regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path; Calculating is obtained the second parameter information and is comprised: according to resource allocation information, calculate the code rate information of obtaining, according to signal to noise ratio target information, calculate and obtain signal to noise ratio compensated information, and calculate according to described signal to noise ratio target information the power adjustment step-length information of obtaining.User terminal described in step 102 is adjusted uplink transmission power according to described the first parameter information and the second parameter information, comprise: described user terminal calculates acquisition approach loss parameter value according to described path loss control information, and according to described cell power, control parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and the calculating of power adjustment step-length information and obtain uplink transmission power reference value; According to 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 base station regularly issues _targetand path loss control information θ _i.This 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 to obtain according to path loss reference value, via node position coordinates and path.Signaling can be permitted by resource allocation information MPUSCH, signal to noise ratio target information SINT by scheduling in 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 is controlled parameter P ₀.And 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, can adjust step-length information δ by increasing power, otherwise can reduce power, adjust step-length information δ, to guarantee to adjust precision.

RN can pass to UE by the above-mentioned parameter information obtaining.UE can be according to path loss control information θ _icalculate acquisition approach loss parameter value PL, and control parameter P according to cell power 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 uplink transmission power reference value.In specific implementation process, UE can adopt formula: PL=θ _i* (Reference Signal Received Power after reference signal power-high-grade filting) calculating path loss parameter value PL, wherein the Reference Signal Received Power after reference signal power and high-grade filting 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 the present embodiment comprises:

The first parameter information and via node that step 201, reception base station forward by via node calculate the second parameter information that obtains and send;

For instance, RN can receive the first parameter information that base station issues, and this first parameter information can be UE required supplementary while adjusting uplink transmission power, such as path loss control information and signal to noise ratio target information etc.Wherein, signal to noise ratio target information can be empirical value, and path loss control information can regulate calculation of parameter to obtain by path loss reference value, via node position coordinates and path.In specific implementation, base station can be permitted signaling by scheduling the first parameter information is passed to RN.And RN itself can also calculate and obtain the second parameter information, this second parameter information can be UE required control information while adjusting uplink transmission power.This second parameter information can comprise: cell power is controlled parameter, resource allocation information, code rate information and signal to noise ratio compensated information etc.This shows, in step 201, supplementary when the first parameter information that 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 the parameter information lower to delay sensitive, therefore can not limit in time RN and control UE adjustment uplink transmission power.And the control information of UE while adjusting uplink transmission power calculated and obtained and issue by RN.Because the covering radius of base station is larger, and by contrast, RN is as the servicing unit communicating between base station and UE, its covering radius is less, therefore, adopt RN to calculate while obtaining above-mentioned parameter information, the span when span of the parameter adopting is obtained above-mentioned parameter information with respect to base station calculating is less.And, RN is with respect to base station, and the close together between UE, while therefore adopting RN to control the uplink transmission power of UE, time delay when its time delay is controlled with respect to base station reduces greatly, thereby can improve the control precision to UE uplink transmission power.

It should be noted that, the above-mentioned several information that may comprise in the first parameter information and the second parameter information that only provided, but be not limited to this several information, only need to make the first parameter information that base station issues is the supplementary that UE adjusts uplink transmission power, and it is the control information that UE adjusts uplink transmission power that RN calculates the second parameter information obtaining.

RN, after getting above-mentioned the first parameter information and the second parameter information, can send to UE by this first parameter information and the second parameter information.

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

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

Under the control of the second parameter information that in the present embodiment, UE sends at RN, under the first parameter information sending at RN repeating base station auxiliary, realize the adjustment of uplink transmission power.Due to nearer the distance of the distance between RN and UE between base station and UE, therefore, the time delay that adopts RN to control UE adjustment uplink transmission power is less, thereby can improve RN and control the precision that UE adjusts uplink transmission power, further improve the adjustment precision of UE to uplink transmission power, reduce alignment error.

In another embodiment of power regulating method of the present invention, the first parameter information that reception base station in Fig. 2 described in step 201 forwards by via node, can comprise: the path loss control information that the base station that reception base station sends by via node regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path; Described reception via node calculates the 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.Described in step 202, according to described the first parameter information and the second parameter information, adjust uplink transmission power, can comprise: according to described path loss control information, calculate acquisition approach loss parameter value, and 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 and obtain uplink transmission power reference value; According to 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 base station sends _i, this θ _ifor slow running parameter, low to the sensitiveness of time delay, this θ _ican regulate calculation of parameter to obtain according to path loss reference value, via node position coordinates and path.Signaling can be permitted by this path loss control information θ by scheduling in base station _ipass to RN.RN itself can also calculate Gains resources assignment 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 _icalculate acquisition approach loss parameter value PL, and control parameter P according to cell power 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 uplink transmission power reference value.In specific implementation process, UE can adopt formula: PL=θ _i* (Reference Signal Received Power after reference signal power-high-grade filting) calculating path loss parameter value PL, wherein the Reference Signal Received Power after reference signal power and high-grade filting is default reference value.

In another embodiment of Poewr control method of the present invention, the first parameter information that reception base station described in step 201 described in Fig. 2 forwards by via node, can comprise: the path loss control information that resource allocation information, signal to noise ratio target information and the base station that reception base station sends by via node regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path; Described reception via node calculates the second parameter information that obtains and send, can comprise: receive via node and calculate the code rate information of obtaining and sending and according to described signal to noise ratio target information, calculate the signal to noise ratio compensated information that obtains and send according to described resource allocation information, and via node calculates the power adjustment step-length information of obtaining and sending according to described signal to noise ratio target information.In step 202, described adjusts uplink transmission power according to described the first parameter information and the second parameter information, can comprise: according to described path loss control information, calculate acquisition approach loss parameter value, and according to described cell power, control parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and the calculating of power adjustment step-length information and obtain uplink transmission power reference value; According to 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 base station regularly issues _targetand path loss control information θ _i.This 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 to obtain according to path loss reference value, via node position coordinates and path.Signaling can be permitted by this resource allocation information MPUSCH, signal to noise ratio target information SINT by scheduling in base station _targetand path loss control information θ _ipass to RN.RN itself can also calculate and obtain code rate information Δ TF according to resource allocation information MPUSCH, according to signal to noise ratio target information SINT _targetsignal to noise ratio compensated information f (i) is obtained in calculating, and cell power is controlled parameter P ₀.And 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, can adjust step-length information δ by increasing power, otherwise can reduce power, adjust step-length information δ, 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 _icalculate acquisition approach loss parameter value PL, and control parameter P according to cell power 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 uplink transmission power reference value.In specific implementation process, UE can adopt formula: PL=θ _i* (Reference Signal Received Power after reference signal power-high-grade filting) calculating path loss parameter value PL, wherein the Reference Signal Received Power after reference signal power and high-grade filting 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 the present embodiment comprises: receiving processing module 11 and sending module 12, and wherein receiving processing module 11 is for the first parameter information of receiving base station and issuing and calculate and obtain the second parameter information; Sending module 12 sends to user terminal for the first parameter information and the second parameter information that described receiving processing module is obtained, and for described user terminal, according to described the first parameter information and the second parameter information, adjusts uplink transmission power.

The present embodiment is identical with the principle of the Poewr control method embodiment shown in Fig. 1, repeats no more.

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

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 the present embodiment comprises: receiving processing module 11 and sending module 12, and wherein receiving processing module 11 is for the first parameter information of receiving base station and issuing and calculate and obtain the second parameter information; Sending module 12 sends to user terminal for the first parameter information and the second parameter information that described receiving processing module is obtained, and for described user terminal, according to described the first parameter information and the second parameter information, adjusts uplink transmission power.Further, this receiving processing module 11 can comprise: the path loss control information that the first receiving element 111 and the first processing unit 112, the first receiving elements 111 regulate calculation of parameter to obtain and issue for receiving base station according to path loss reference value, via node position coordinates and path; The first processing unit 112 obtains cell power control parameter, resource allocation information, code rate information and signal to noise ratio compensated information for calculating.

For instance, in the RN of the present embodiment, the first receiving element 111 can receive the path loss control information θ that base station sends _i, this θ _ican regulate calculation of parameter to obtain according to path loss reference value, via node position coordinates and path.Signaling can be permitted by this path loss control information θ by scheduling in base station _ipass to RN.The first processing unit 112 can calculate Gains resources assignment information MPUSCH, code rate information Δ TF and signal to noise ratio compensated information f (i) and cell power and control parameter P ₀.

Sending module 12 can pass to UE by the above-mentioned parameter information obtaining.UE can be according to path loss control information θ _icalculate acquisition approach loss parameter value PL, and control parameter P according to cell power 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 uplink transmission power reference value.In specific implementation process, UE can adopt formula: PL=θ _i* (Reference Signal Received Power after reference signal power-high-grade filting) calculating path loss parameter value PL, wherein the Reference Signal Received Power after reference signal power and high-grade filting is default reference value.

UE gets after 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 up maximum rated transmitting power, as the uplink transmission power of UE, thereby realize RN, the adjustment of UE uplink transmission power is controlled.Due to the RN of the present embodiment, that UE is adjusted to the time delay that uplink transmission power controls is less, thereby can improve RN, controls the precision that UE adjusts uplink transmission power, further improves the adjustment precision of UE to uplink transmission power, reduces alignment error.

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 the present embodiment comprises: receiving processing module 11 and sending module 12, and wherein receiving processing module 11 is for the first parameter information of receiving base station and issuing and calculate and obtain the second parameter information; Sending module 12 sends to user terminal for the first parameter information and the second parameter information that described receiving processing module is obtained, and for described user terminal, according to described the first parameter information and the second parameter information, adjusts uplink transmission power.Further, this receiving processing module 11 can comprise: the second receiving element 113 and the second processing unit 114.The path loss control information that the second receiving element 113 regulates calculation of parameter to obtain for resource allocation information, signal to noise ratio target information and the base station that receives base station and issue according to path loss reference value, via node position coordinates and path; The second processing unit 114, for calculating according to described resource allocation information the code rate information of obtaining, calculates and obtains signal to noise ratio compensated information according to described signal to noise ratio target information, and calculates according to described signal to noise ratio target information the power adjustment step-length information of obtaining.

For instance, the second receiving element 113 can receive resource allocation information MPUSCH, the signal to noise ratio target information SINT that base station issues _targetand path loss control information θ _i.This P ₀can be empirical value, this signal to noise ratio target information SINT _targetfor slow running parameter, low to the sensitiveness of time delay, this θ _ican regulate calculation of parameter to obtain according to path loss reference value, via node position coordinates and path.Signaling can be permitted by this resource allocation information MPUSCH, signal to noise ratio target information SINT by scheduling in base station _targetand path loss control information θ _ipass to RN.The second processing unit 114 can calculate and obtain code rate information Δ TF according to described resource allocation information MPUSCH, 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 and control parameter P ₀.And the 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, can adjust step-length information δ by increasing power, otherwise can reduce power, adjust step-length information δ, to guarantee to adjust precision.

Sending module 12 can pass to UE by the above-mentioned parameter information obtaining.UE can be according to path loss control information θ _icalculate acquisition approach loss parameter value PL, and control parameter P according to cell power 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 uplink transmission power reference value.In specific implementation process, UE can adopt formula: PL=θ _i* (Reference Signal Received Power after reference signal power-high-grade filting) calculating path loss parameter value PL, wherein the Reference Signal Received Power after reference signal power and high-grade filting is default reference value.

It will be understood by those skilled in the art that, in RN shown in Fig. 4 and Fig. 5, the first receiving element 111, the first processing unit 112, the second receiving element 113 and the second processing unit 114 also can be combined in this receiving processing module 11 simultaneously, its realize the RN shown in principle and above-mentioned Fig. 4 and Fig. 5 to realize principle similar, repeat 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 the present embodiment comprises: receiver module 21 and adjusting module 22, and this receiver module 21 calculates for the first parameter information and the via node that receives base station and forward by via node the second parameter information that obtains and send; Adjusting module 22 is for adjusting uplink transmission power according to described the first parameter information and the second parameter information.

The present embodiment is identical with the principle of the power regulating method embodiment shown in Fig. 2, repeats no more.

Under the control of the second parameter information that the UE of the present embodiment sends at RN, under the first parameter information sending at RN repeating base station auxiliary, realize the adjustment of uplink transmission power.Due to nearer the distance of the distance between RN and UE between base station and UE, therefore, the time delay of the UE of the 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 alignment 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 the present embodiment comprises: receiver module 21 and adjusting module 22, and this receiver module 21 calculates for the first parameter information and the via node that receives base station and forward by via node the second parameter information that obtains and send; Adjusting module 22 is for adjusting uplink transmission power according to described the first parameter information and the second parameter information.

Further, the first parameter information that receiver module 21 receives comprises: the path loss control information that base station regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path; The second parameter information that receiver module 21 receives comprises: cell power is controlled parameter, resource allocation information, code rate information and signal to noise ratio compensated information.Correspondingly, this adjusting module 22 can comprise: the first calculation processing unit 221 and first is adjusted processing unit 222.The first calculation processing unit 221 is for calculate acquisition approach loss parameter value according to described path loss control information, and according to described cell power, controls parameter, path loss parameter values, resource allocation information, code rate information and signal to noise ratio compensated information and calculate and obtain uplink transmission power reference value; First adjusts processing unit 222 for according to 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 the present embodiment comprises: receiver module 21 and adjusting module 22, and this receiver module 21 calculates for the first parameter information and the via node that receives base station and forward by via node the second parameter information that obtains and send; Adjusting module 22 is for adjusting uplink transmission power according to described the first parameter information and the second parameter information.

Further, the first parameter information that receiver module 21 receives comprises: the path loss control information that resource allocation information, signal to noise ratio target information and base station regulate calculation of parameter to obtain according to path loss reference value, via node position coordinates and path; The second parameter information that receiver module 21 receives comprises: cell power is controlled 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: the second calculation processing unit 223 and second is adjusted processing unit 224.The second calculation processing unit 223 is for calculate acquisition approach loss parameter value according to described path loss control information, and according to described cell power, controls parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and power and adjust step-length information and calculate and obtain uplink transmission power reference value; Second adjusts processing unit 224 for according to 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, in RN shown in Fig. 7 and Fig. 8, the first calculation processing unit 221, first is adjusted processing unit 222, the second calculation processing unit 223 and second is adjusted processing unit 224 and also can be combined in this adjusting module 22 simultaneously, its realize the RN shown in principle and above-mentioned Fig. 7 and Fig. 8 to realize principle similar, repeat no more.

Fig. 7 and embodiment illustrated in fig. 8 in the control of the second parameter information of sending at RN of UE under, under the first parameter information sending at RN repeating base station auxiliary, realize the adjustment of uplink transmission power.Due to nearer the distance of the distance between RN and UE between base station and 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 alignment 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 the present embodiment comprises: base station 1 and via node 2, and base station 1 is for sending the first parameter information to via node 2; The first parameter information that via node 2 sends for receiving base station 1, the second parameter information is obtained in calculating, and the first parameter information and the second parameter information are sent to user terminal, for described user terminal, according to described the first parameter information and the second parameter information, adjust uplink transmission power.

Supplementary when the first parameter information that 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, the parameter information lower to delay sensitive, therefore can not limit in time RN and control UE adjustment uplink transmission power.And the control information of UE while adjusting uplink transmission power calculated and obtained and issue by RN.Because the covering radius of base station is larger, and by contrast, RN is as the servicing unit communicating between base station and UE, its covering radius is less, therefore, adopt RN to calculate while obtaining above-mentioned parameter information, the span when span of the parameter adopting is obtained above-mentioned parameter information with respect to base station calculating is less.And, RN is with respect to base station, and the close together between UE, while therefore adopting RN to control the uplink transmission power of UE, time delay when its time delay is controlled with respect to base station reduces greatly, thereby can improve the control precision to UE 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 the 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 can be that the quantity of a plurality of eNodeB can be selected as required in current eNodeB a plurality of eNodeB around.

Throughput can be with receiving the quantity of the UE serving or total data rate to represent.The uplink transmission power of the RN communicating by letter with current eNodeB can exert an influence to the uplink throughput in current eNodeB a plurality of eNodeB around.Described a plurality of eNodeB around can include but not limited to that the distance with current eNodeB is less than other eNodeB or the overlapping eNodeB that is greater than certain threshold value of signal covering of certain threshold value.If the uplink transmission power of the RN communicating by letter with current eNodeB is larger, can reduce the uplink throughput in current eNodeB a plurality of eNodeB around.This shows, can control by the uplink transmission power of the average uplink throughput couple RN communicating by letter with current eNodeB in current eNodeB a plurality of eNodeB around, thus the excessive impact on the uplink throughput of other eNodeB of uplink transmission power of the RN that reduction is communicated by letter with current eNodeB.

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

ENodeB can adjust signal to RN transmitted power according to the change information of the average uplink throughput of its eNodeB around, and RN can adjust the corresponding uplink transmission power of signal adjustment according to this power.For example, when eNodeB judges 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 the present embodiment is by obtaining the average uplink throughput in current eNodeB a plurality of eNodeB around, can be so that current eNodeB be known the situation of change of the uplink throughput of its a plurality of eNodeB around, make current eNodeB can control according to the situation of change of this average uplink throughput the uplink transmission power of corresponding RN, and needn't allow RN always transmit with maximum rated transmitting power, thereby the problem of having avoided RN to cause briquettability to disturb due to the excessive uplink throughput to peripheral cell of uplink transmission power.

Poewr control method of the present invention is also in an embodiment, the average uplink throughput of obtaining a plurality of base stations described in step 301 described in Figure 10, can comprise: obtain throughput statistics entity the uplink throughput of a plurality of base stations is averaged and processes the average uplink throughput of determining; Described in step 302, according to the change information of described average uplink throughput, to via node transmitted power, adjust signal, can comprise: if described average uplink throughput reduces, to described via node, send the power adjustment signal for reducing the uplink transmission power of described via node.

For instance, this throughput statistics entity can be self-organizing network (Self OrganizationNetwork, hereinafter to be referred as: SON), each eNodeB can be connected with SON, thereby reports its uplink throughput separately to SON.For current eNode, SON can average processing to the uplink throughput reporting in current eNode a plurality of eNodeB around, thereby determines average uplink throughput.SON can send to current eNodeB by 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, to RN, send the power adjustment signal for reducing the uplink transmission power of RN.

In specific implementation process, current eNodeB can arrange the power initial value P of RN _max(i), i=0, and by the uplink transmission power P of the RN communicating 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 throughput statistics entity, if when this average uplink throughput Tu reduces, can be when in scope sometime, decrease surpasses a certain threshold value during practical operation, P _cmax(i+1)=P _cmax(i)-Step_u, i=i+1, wherein Step_u is for regulating step-length.Adopt P _cmax(i+1)=P _cmax(i)-Step_u, the uplink transmission power P of i=i+1 to RN _cmaxupgrade, when power control period finishes, current eNodeB can obtain the final uplink transmission power of RN, thereby to RN transmitted power, adjusts signal according to final definite uplink transmission power.

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

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

Wherein, described in obtain the average downlink throughput capacity of a plurality of base stations, comprising: obtain throughput statistics entity the downlink throughput capacity of a plurality of base stations is averaged and processes the average downlink throughput capacity of determining; The down transmitting power of adjusting self according to the change information of described average downlink throughput capacity, comprising: if described average downlink throughput capacity reduces, reduce to the down transmitting power of via node transmitted signal.

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

In 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) the second down transmitting power P that and not comprises the transmitting power of reference signal _b(i).Correspondingly, current eNodeB can arrange initializaing variable Δ A=adB, Δ B=bdB, and by the first required down transmitting power P of RN transmitted signal _a(i) be made as power initial value P _amax-Δ A, by the second down transmitting power P _b(i) be made as power initial value P _bmax-Δ B, wherein P _amaxfor maximum the first down transmitting power, P _bmaxfor maximum the 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, during practical operation, can be when in scope sometime, decrease surpasses a certain threshold value, Δ A=Δ A+Step_d; 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, the first down transmitting power P of i=i+1 to current eNodeB _a(i) and the second down transmitting power P _b(i) upgrade, when power control period finishes, current eNodeB can determine the first final down transmitting power and the second down transmitting power, thus according to final the first down transmitting power of determining and the second down transmitting power to RN transmitted signal.

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

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 the present embodiment comprises:

The power that step 401, reception base station send according to the change information of the average uplink throughput of a plurality of base stations around, described base station is adjusted signal;

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 can be that the quantity of a plurality of eNodeB can be selected as required in current eNodeB a plurality of eNodeB around.

ENodeB can adjust signal to RN transmitted power according to the change information of the average uplink throughput of its eNodeB around, and RN can adjust the corresponding uplink transmission power of signal adjustment according to this power.For example, when eNodeB judges 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, according to described power, adjust signal 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 in an embodiment, the power that reception base station described in step 401 described in Figure 11 sends according to the change information of the average uplink throughput of a plurality of base stations around, described base station is adjusted signal, can comprise: the power of the uplink transmission power for reducing via node that the information that reception base station reduces according to the average uplink throughput of a plurality of base stations sends is adjusted signal; Adjusting signal according to described power and adjust uplink transmission power described in step 402, comprising: according to described power, adjust signal and reduce uplink transmission power.

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

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

Another embodiment of base station of the present invention on the basis of the base station shown in Figure 12 further, acquisition module can comprise: the first acquiring unit, and this first acquiring unit averages and processes the average uplink throughput of determining the uplink throughput of a plurality of base stations for obtaining throughput statistics entity; Sending module can comprise: the first transmitting element, this first transmitting element, for when described average uplink throughput reduces, sends the power adjustment signal for reducing the uplink transmission power of described via node to described via node.

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

Another embodiment of base station of the present invention on the basis of the base station shown in Figure 12 further, also comprise: power regulation module, this power regulation module, for when described acquisition module obtains the average downlink throughput capacity of a plurality of base stations, is adjusted 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 in its a plurality of eNodeB around, can know the situation of change of the average downlink throughput capacity of its a plurality of eNodeB around, make the base station of the present embodiment can adjust according to the situation of change of this average downlink throughput capacity the down transmitting power of himself, and needn't allow current eNodeB always transmit with maximum rated transmitting power, thereby the problem of having avoided eNodeB to cause briquettability to disturb due to the excessive downlink throughput capacity to peripheral cell of down 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 the present embodiment comprises: receiver module 41 and power regulation module 42.The power adjustment signal that this receiver module 41 sends according to the average uplink throughput of a plurality of base stations around, described base station for receiving base station; Power regulation module 42 is adjusted uplink transmission power for adjusting signal according to described power.The present embodiment is identical with the principle of the power regulating method embodiment shown in Figure 11, repeats no more.

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

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

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

Another embodiment of power control system of the present invention comprises: base station and via node, and described base station, for obtaining the average uplink throughput of a plurality of base stations; According to the change information of described average uplink throughput, to via node transmitted power, adjust signal; Described via node, the power adjustment signal sending for receiving base station, and according to described power, adjust signal and adjust uplink transmission power.

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

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

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

Finally it should be noted that: above embodiment is only in order to technical scheme of the present invention to be described but not be limited, 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 be modified 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 depart from the spirit and scope of technical solution of the present invention.

Claims

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

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

Described the first parameter information is that described user terminal is adjusted the supplementary of uplink transmission power and has time delay insensitivity, and described the second parameter information is the control information that described user terminal is adjusted uplink transmission power.

2. Poewr control method according to claim 1, it is characterized in that, the first parameter information that described reception base station issues comprises: receive the path loss control information that base station regulates calculation of parameter to obtain and issue according to path loss reference value, via node position coordinates and path;

Described calculating is obtained the 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 the first parameter information and the second parameter information, comprising:

Described user terminal calculates acquisition approach loss parameter value according to described path loss control information, and according to described cell power, controls parameter, path loss parameter values, resource allocation information, code rate information and the calculating of signal to noise ratio compensated information and obtain uplink transmission power reference value;

According to 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, the first parameter information that described reception base station issues comprises: the path loss control information that resource allocation information, signal to noise ratio target information and the base station that reception base station issues regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path;

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

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

Described user terminal calculates acquisition approach loss parameter value according to described path loss control information, and according to described cell power, controls parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and the calculating of power adjustment step-length information and obtain uplink transmission power reference value;

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

According to described the first parameter information and described the second parameter information, adjust uplink transmission power;

Described the first parameter information is that user terminal is adjusted the supplementary of uplink transmission power and has time delay insensitivity, and described the second parameter information is the control information that described user terminal is adjusted uplink transmission power.

7. power regulating method according to claim 6, it is characterized in that, the first parameter information that described reception base station forwards by via node, comprising: the path loss control information that the base station that reception base station sends by via node regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path;

Receive via node and calculate the 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, described according to described the first parameter information and the second parameter information adjustment uplink transmission power, comprising:

According to described path loss control information, calculate acquisition approach loss parameter value, and 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 and obtain uplink transmission power reference value;

9. according to right, to remove the power regulating method described in 6, it is characterized in that, the first parameter information that described reception base station forwards by via node, comprising: the path loss control information that resource allocation information, signal to noise ratio target information and the base station that reception base station sends by via node regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path;

Receive via node and calculate the second parameter information that obtains and send, comprise: receive via node and calculate the code rate information of obtaining and sending and according to described signal to noise ratio target information, calculate the signal to noise ratio compensated information and the cell power that obtain and send and control parameter according to described resource allocation information, and the power that via node obtains and sends according to described signal to noise ratio target information calculating is adjusted step-length information.

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

According to described path loss control information, calculate acquisition approach loss parameter value, and according to described cell power, control parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and the calculating of power adjustment step-length information and obtain uplink transmission power reference value;

11. 1 kinds of via nodes, is characterized in that, comprising:

Sending module, sends to user terminal for the first parameter information and the second parameter information that described receiving processing module is obtained, and for described user terminal, according to described the first parameter information and the second parameter information, adjusts uplink transmission power;

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

The first receiving element, the path loss control information that regulates calculation of parameter to obtain and issue according to path loss reference value, via node position coordinates and path for receiving base station;

The first processing unit, obtains cell power control parameter, resource allocation information, code rate information and signal to noise ratio compensated information for calculating.

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

The second receiving element, the path loss control information that regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path for receiving resource allocation information, signal to noise ratio target information and base station that base station issues;

The second processing unit, for calculating according to described resource allocation information the code rate information of obtaining, calculates and obtains signal to noise ratio compensated information according to described signal to noise ratio target information, and calculates according to described signal to noise ratio target information the power adjustment step-length information of obtaining.

14. 1 kinds of user terminals, is characterized in that, comprising:

Adjusting module, for adjusting uplink transmission power according to described the first parameter information and the second parameter information;

15. user terminals according to claim 14, it is characterized in that, the first parameter information that described receiver module receives comprises: the path loss control information that base station regulates calculation of parameter to obtain according to path loss reference value, via node position coordinates and path; The second parameter information that described receiver module receives comprises: cell power is controlled parameter, resource allocation information, code rate information and signal to noise ratio compensated information.

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

The first calculation processing unit, for calculate acquisition approach loss parameter value according to described path loss control information, and 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 and obtain uplink transmission power reference value;

First adjusts processing unit, for according to 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 terminals according to claim 14, it is characterized in that, the first parameter information that described receiver module receives comprises: the path loss control information that resource allocation information, signal to noise ratio target information and base station regulate calculation of parameter to obtain according to path loss reference value, via node position coordinates and path; The second parameter information that described receiver module receives comprises: via node calculates according to described resource allocation information the code rate information, the via node that obtain and send and according to described signal to noise ratio target information, calculates signal to noise ratio compensated information and the cell power control parameter of obtaining and sending, and the power that via node obtains and sends according to described signal to noise ratio target information calculating is adjusted step-length information.

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

The second calculation processing unit, for calculate acquisition approach loss parameter value according to described path loss control information, and according to described cell power, control parameter, path loss parameter values, resource allocation information, code rate information, signal to noise ratio compensated information and the calculating of power adjustment step-length information and obtain uplink transmission power reference value;

Second adjusts processing unit, for according to 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. 1 kinds of power control systems, is characterized in that, comprising: base station and via node,

Described via node, the first parameter information sending for receiving described base station, the second parameter information is obtained in calculating, and described the first parameter information and the second parameter information are sent to user terminal, for described user terminal, according to described the first parameter information and the second parameter information, adjust uplink transmission power;