CN106455029A

CN106455029A - Power control method, power control device, and power control system

Info

Publication number: CN106455029A
Application number: CN201510498157.6A
Authority: CN
Inventors: 李汉涛; 李振宇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-08-13
Filing date: 2015-08-13
Publication date: 2017-02-22
Also published as: WO2017024922A1

Abstract

The invention discloses a power control method, a power control device, and a power control system. The power control method comprises steps that a base station is used to determine emission power of a reference signal of a first cell at a second moment, and the base station is used to determine first power information according to the emission power of the reference signal of the first cell at the second moment; the base station is used to transmit the first power information to a terminal at a first moment by a downlink physical channel of a second cell, and then the terminal is used to determine the emission power of the reference signal of the first cell at the second moment according to the first power information. By adopting the above mentioned method, when changing of emission power of a reference signal of a main cell or an auxiliary cell is determined, the terminal is quickly notified, and therefore the millisecond-level power control is realized, and signaling costs are reduced. The invention also discloses the power control device and the power control system.

Description

The methods, devices and systems of Power Control

Technical field

The present embodiments relate to the methods, devices and systems of the communications field, more particularly, to Power Control.

Background technology

Licensed spectrum auxiliary accesses (licensed assisted access, LAA) system and refers to license frequency Spectrum and licensed spectrum of exempting from pass through carrier aggregation (carrier aggregation, CA) or the mode of non-CA The wireless communication system together using.Wherein, licensed spectrum is usually traditional second filial generation, third generation communication System and Long Term Evolution (long term evolution, LTE) system etc. by operator provide wireless The frequency spectrum that communication system is used, exempts from licensed spectrum and is usually Wireless Fidelity (Wireless fidelity, WIFI) The frequency spectrum that system uses.

A kind of main flow deployment scenario is by licensed spectrum and to exempt from the scene that licensed spectrum is used in combination by CA, that is, Would operate in cell in licensed spectrum as main plot, would operate in the cell exempting from licensed spectrum as auxiliary Cell, wherein main serving cell and auxiliary serving cell can be disposed with co-sited deployment or non-co-sited, and two There is preferable or nonideal return path between individual Serving cell.

Another kind of deployment scenario is to exempt from the scene that licensed spectrum independently uses (Standalone), that is, exempt from license frequency As the scene of independent carrier operation, being operated in the Serving cell exempting from licensed spectrum can provide independence to spectrum Access function is it is not necessary to auxiliary by being operated in the cell in licensed spectrum.

Exempt from licensed spectrum by increase, LAA system can improve Intelligent terminal data speed and reduce congestion, The growth of effectively solving house data flow.

It is to share with WIFI system due to exempting from licensed spectrum in LAA system, so that between consideration system The fairness that channel is used.Meanwhile, the frequency spectrum regulation of each department also exempts from the channel work(of licensed spectrum to such Rate, occupancy duration etc. both increase constraint.

Generally for the interference reducing to WIFI system, LAA system can be controlled to the transmission of full bandwidth power System, for example, is controlled to the power of reference signal.Especially introducing listem-before-talk (listen before Talk, LBT) after technology, LAA system can first detect the channel power exempting from licensed spectrum, determines that carrier wave is sent out Penetrate power, the requirement to real-time is stricter, need to realize Millisecond other cell-level Power Control.

How interference level, lifting frequency are effectively ensured under the constraint of frequency spectrum regulation by quick Power Control Compose service efficiency and then lift the important topic that network capacity is LAA system.

In existing Power Control, because the transmission power of reference signal is relatively stable, typically pass through system message Notify terminal, and the schedule speed of system message generally requires milliseconds up to a hundred it is impossible to realize quick power Control.

Content of the invention

In view of this, the methods, devices and systems of Power Control are embodiments provided, to realize milli The fast power of second level controls.

In a first aspect, embodiments providing a kind of method of Power Control, methods described includes：

Base station determines the transmission power in the second moment for the reference signal of first community；

According to the reference signal of described first community, the transmission power in described second moment determines for described base station One power information；

The down physical channel that second community is passed through in the first moment in described base station sends described first work(to terminal Rate information, so that described terminal determines the reference signal of described first community according to described first power information In the transmission power in described second moment, or, media access control layer is passed through in the first moment in described base station MAC Control Element CE sends described first power information to terminal, so that described terminal is according to described first Power information determines the transmission power in described second moment for the reference signal of described first community；

Wherein, described second moment is later than described k Transmission Time Interval TTI of first moment, k be more than or The integer that person is equal to 0, described down physical channel is scrambled by power radio network mark RNTI, and every TTI is by described base station scheduling.

In the first possible implementation of first aspect, before methods described, also include：

Described base station sends system message by the broadcast channel of described second community, takes in described system message The initial power information of the reference signal with described first community, or, the reference signal of described first community Initial power information and described first community support reference signal power information；Wherein, described initial Power information is initial power level or initial gain value, the reference signal of the support of described first community Power information includes at least one power grade of reference signal, or, at least one power of reference signal Value.

In conjunction with the first possible implementation of first aspect, in the possible realization of the second of first aspect In mode, described first power information includes following at least one：The reference signal of described first community is in institute State the power grade in the second moment, or, the reference signal of described first community is in the work(in described second moment Rate value, or, the reference signal of described first community described second moment power grade with respect to described The variable quantity of the power grade in the first moment, or, the reference signal of described first community is when described second The variable quantity of the performance number with respect to described first moment for the performance number carved, or, the ginseng of described first community Examine signal described second moment power grade with respect to described initial power level variable quantity, or, The initial gain value of the reference signal of described first community is with respect to the variable quantity of described initial gain value.

In the third possible implementation of first aspect, described first power information include following at least A kind of：The reference signal of described first community in the power grade in described second moment, or, described first The reference signal of cell in the performance number in described second moment, or, the reference signal of described first community exists The variable quantity of the power grade with respect to described first moment for the power grade in described second moment, or, institute State the reference signal of first community described second moment performance number with respect to described first moment performance number Variable quantity.

In conjunction with first aspect and the first any one possible implementation in the third of first aspect, In the 4th kind of possible implementation, described down physical channel includes：Physical downlink control channel PDCCH, Or, physical mixed automatic re-transmission indicating channel PHICH, or, Physical Control Format Indicator Channel.

In conjunction with first aspect and the first any one possible implementation in the 4th kind of first aspect, In the 5th kind of possible implementation, described first community and described second community are same cell.

In conjunction with first aspect and the first any one possible implementation in the 4th kind of first aspect, In the 6th kind of possible implementation, described first community is secondary cell, and described second community is main plot； Described first power information also includes the cell ID of described first community.

Second aspect, embodiments provides a kind of method of Power Control, and methods described includes：

Base station determines the power grade in the second moment for the reference signal of first community；

Described base station sends downlink physical signal in the first moment by described first community, so that terminal root Determine the power grade in the second moment for the reference signal of described first community according to described downlink physical signal；

Wherein, described second moment is later than described k Transmission Time Interval TTI of first moment, k be more than or The integer that person is equal to 0.

In the first possible implementation of second aspect, the downlink physical signal packet of described second community Include power descrambling reference signals；

Described base station sends downlink physical signal in the first moment by described first community, including：

Described base station according to the reference signal of described first community the second moment power grade to cell-specific Reference signal sequence scrambling obtains described power descrambling reference signals；

Described base station sends described power descrambling reference signals in described first moment by described first community, Wherein, described first moment includes the time-domain position sending for cell special reference.

In the possible implementation of the second of second aspect, the downlink physical signal packet of described second community Include power notification sequence；

Described base station determines the corresponding sequence of power grade with the reference signal of described first community in the second moment Row are as power notification sequence；

Described base station sends described power notification sequence, wherein, institute in the first moment by described first community State the first moment include for master sync signal send time-domain position, or, for auxiliary synchronous signals send Time-domain position, or, described base station detects the time-domain position of the idle channel exempting from licensed spectrum.

The third aspect, embodiments provides a kind of method of Power Control, and methods described includes：

Base station determines the transmission power change information in the second moment for the reference signal of first community；

Described base station is passed through second community in the first moment and is sent described transmission power change information to terminal；

Wherein, described second moment is later than described k Transmission Time Interval TTI of first moment, k be more than or The integer that person is equal to 0, described transmission power change information at least includes following one kind, the reference of first community The transmission power changing pattern of signal and described second moment.

In the first possible implementation of the third aspect, the transmitting of the reference signal of described first community Power change patterns include at least one cycle and this cycle corresponding power information.

The first possible implementation in conjunction with the third aspect, in the possible implementation of second, described Before method, also include：

Described base station sends system message by the broadcast channel of described second community, takes in described system message The initial power information of the reference signal with described first community, or, the reference signal of described first community Initial power information and described first community support reference signal power information；Described initial power letter Cease for initial power level or initial gain value, the power letter of the reference signal of the support of described first community Breath includes at least one power grade of reference signal, or, at least one performance number of reference signal.

In conjunction with the possible implementation of third aspect second, in the third possible implementation, described Cycle, corresponding power information included：The power grade in described cycle, or, the performance number in described cycle, Or, the variable quantity of the power grade in the described cycle power grade with respect to the previous cycle in described cycle, Or.The variable quantity of the performance number with respect to the previous cycle in described cycle for the performance number in described cycle, or, The power grade in described cycle is with respect to the variable quantity of described initial power level, or the power in described cycle Value is with respect to the variable quantity of described initial gain value.

The first possible implementation in conjunction with the third aspect, in the 4th kind of possible implementation, described Cycle, corresponding power information included：The power grade in described cycle, or, the performance number in described cycle.

In conjunction with the third aspect, or any one possible implementation of first to fourth kind of the third aspect, In the 5th kind of possible implementation, described base station is passed through second community in the first moment and is sent institute to terminal State transmission power change information, including：

The DCCH that second community is passed through in the first moment in described base station sends described transmitting work(to terminal Rate change information；Or,

The broadcast channel that second community is passed through in the first moment in described base station sends described transmission power to terminal and becomes Change information；Or,

Described base station was become to transmission power described in terminal by the down physical channel of second community in the first moment Change information, the down physical channel of described second community is scrambled by power radio network mark RNTI, and often TTI is by described base station scheduling.

In conjunction with the 5th kind of possible implementation of the third aspect, in the 6th kind of possible implementation, described Down physical channel includes：Physical downlink control channel PDCCH, or, physical mixed autonomous retransmission instruction letter Road PHICH, or, Physical Control Format Indicator Channel.

In conjunction with the third aspect, or the third aspect first is to the 6th kind of any one possible implementation, In 7th kind of possible implementation, described first community and described second community are same cell.

In conjunction with the third aspect, or the third aspect first is to the 6th kind of any one possible implementation, In 8th kind of possible implementation, described first community is secondary cell, and described second community is main plot； Described transmission power change information also includes the cell ID of described first community.

Fourth aspect, embodiments provides a kind of method of Power Control, and methods described includes：

Terminal receives the first power letter that base station is sent by the down physical channel of second community in the first moment Breath, or, terminal receives base station and passes through media access control layer MAC Control Element CE transmission in the first moment The first power information；

Described terminal determines reference signal the sending out in the second moment of first community according to described first power information Penetrate power；

In the first possible implementation of fourth aspect, before methods described, also include：

Described terminal receives the system message that described base station is sent, institute by the broadcast channel of described second community State the initial power information of the reference signal carrying described first community in system message, or, described first The power information of the reference signal of the initial power information of the reference signal of cell and the support of described first community； Wherein, described initial power information be initial power level or initial gain value, described first community The power information of the reference signal held includes at least one power grade of reference signal, or, reference signal At least one performance number.

In conjunction with the first possible implementation of fourth aspect, in the possible realization of the second of fourth aspect In mode, described first power information includes following at least one：The reference signal of described first community is in institute State the power grade in the second moment, or, the reference signal of described first community is in the work(in described second moment Rate value, or, the reference signal of described first community described second moment power grade with respect to described The variable quantity of the power grade in the first moment, or, the reference signal of described first community is when described second The variable quantity of the performance number with respect to described first moment for the performance number carved, or, the ginseng of described first community Examine signal described second moment power grade with respect to described initial power level variable quantity, or, The initial gain value of the reference signal of described first community is with respect to the variable quantity of described initial gain value.

In the third possible implementation of fourth aspect, described first power information include following at least A kind of：The reference signal of described first community in the power grade in described second moment, or, described first The reference signal of cell in the performance number in described second moment, or, the reference signal of described first community exists The variable quantity of the power grade with respect to described first moment for the power grade in described second moment, or, institute State the reference signal of first community described second moment performance number with respect to described first moment performance number Variable quantity.

In conjunction with fourth aspect, or fourth aspect first any one possible implementation in the third, In the 4th kind of possible implementation, described down physical channel includes：Including Physical Downlink Control Channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, or, physical control format instruction letter Road.

In conjunction with fourth aspect, or fourth aspect first any one possible implementation in the 4th kind, In the 5th kind of possible implementation, described first community and described second community are same cell.

In conjunction with fourth aspect, or fourth aspect first any one possible implementation in the 4th kind, In the 6th kind of possible implementation, described first community is secondary cell, and described second community is main plot； Described first power information also includes the cell ID of described first community.

5th aspect, embodiments provides a kind of method of Power Control, and methods described includes：

Terminal receives the downlink physical signal that base station is sent by first community in the first moment；

Described terminal determines the reference signal of described first community in the second moment according to described downlink physical signal Power grade；

In the first possible implementation of the 5th aspect, the downlink physical signal packet of described second community Include power descrambling reference signals, described first moment includes the time domain position sending for cell special reference Put；

Described terminal determines the reference signal of described first community in the second moment according to described downlink physical signal Power grade, including：

Described terminal determines the corresponding cell special reference of described power descrambling reference signals by blind Detecting Sequence；

Described terminal power descrambling reference signals descrambling according to described cell special reference sequence pair is true The reference signal of fixed described first community is in the power grade in the second moment.

In the possible implementation of the second of the 5th aspect, the downlink physical signal packet of described second community Include power notification sequence；Described first moment includes the time-domain position sending for master sync signal, or, The time-domain position sending for auxiliary synchronous signals, or, described base station detects the idle letter exempting from licensed spectrum The time-domain position in road；

Described terminal determines the reference signal of described first community in the second moment according to described power notification sequence Power grade.

6th aspect, embodiments provides a kind of method of Power Control, and methods described includes：

Terminal receives the transmission power change information that base station is sent by second community in the first moment；

Described terminal determines the reference signal of first community in the second moment according to described transmission power change information Transmission power；

In the first possible implementation of the 6th aspect, the transmitting of the reference signal of described first community Power change patterns include at least one cycle and this cycle corresponding power information.

In conjunction with the first possible implementation of the 6th aspect, in the possible implementation of second, described Before method, also include：

Described terminal receives the system message that described base station is sent, institute by the broadcast channel of described second community State the initial power information of the reference signal carrying described first community in system message, or, described first The power information of the reference signal of the initial power information of the reference signal of cell and the support of described first community； Described initial power information is initial power level or initial gain value, the ginseng of the support of described first community The power information examining signal includes at least one power grade of reference signal, or, reference signal is at least One performance number.

In conjunction with the possible implementation of the 6th aspect second, in the third possible implementation, described Cycle, corresponding power information included：The power grade in described cycle, or, the performance number in described cycle, Or, the variable quantity of the power grade in the described cycle power grade with respect to the previous cycle in described cycle, Or.The variable quantity of the performance number with respect to the previous cycle in described cycle for the performance number in described cycle, or, The power grade in described cycle is with respect to the variable quantity of described initial power level, or the power in described cycle Value is with respect to the variable quantity of described initial gain value.

In conjunction with the first possible implementation of the 6th aspect, in the 4th kind of possible implementation, described Cycle, corresponding power information included：The power grade in described cycle, or, the performance number in described cycle.

In conjunction with the 6th aspect, or any one possible implementation of first to fourth kind of the 6th aspect, In 5th kind of possible implementation, described terminal reception base station was sent by second community in the first moment Transmission power change information, including：

Described terminal receives the institute that described base station is sent by the DCCH of second community in the first moment State transmission power change information；Or,

Described terminal receives described base station in the first moment by sending out described in the broadcast channel transmission of second community Penetrate changed power information；Or,

Described terminal receives the institute that described base station is sent by the down physical channel of second community in the first moment State transmission power change information, the down physical channel of described second community is identified RNTI by power radio network Scrambling, and every TTI is by described base station scheduling.

In conjunction with the 5th kind of possible implementation of the 6th aspect, in the 6th kind of possible implementation, described Down physical channel includes：Physical downlink control channel PDCCH, or, physical mixed autonomous retransmission instruction letter Road PHICH, or, Physical Control Format Indicator Channel.

In conjunction with the 6th aspect, or the 6th aspect first is to the 6th kind of any one possible implementation, In 7th kind of possible implementation, described first community and described second community are same cell.

In conjunction with the 6th aspect, or the 6th aspect first is to the 6th kind of any one possible implementation, In 8th kind of possible implementation, described first community is secondary cell, and described second community is main plot； Described transmission power change information also includes the cell ID of described first community.

7th aspect, embodiments provides a kind of device of Power Control, and described device includes：The One determining unit, the second determining unit and Transmit-Receive Unit；Wherein,

Described first determining unit is used for determining the transmission power in the second moment for the reference signal of first community；

Described second determining unit is used for the reference of the described first community according to described first determining unit determination The transmission power in the second moment for the signal determines the first power information；

The down physical channel that described Transmit-Receive Unit is used for passing through second community in the first moment sends institute to terminal State the first power information, so that described terminal determines described first community according to described first power information Reference signal in the transmission power in described second moment, or, described Transmit-Receive Unit be used for first the moment lead to Cross media access control layer MAC Control Element CE and send described first power information to terminal, so that described Terminal determines reference signal the sending out in described second moment of described first community according to described first power information Penetrate power；

Wherein, described second moment is later than described k Transmission Time Interval TTI of first moment, k be more than or The integer that person is equal to 0, described down physical channel is scrambled by power radio network mark RNTI, and every TTI is by base station scheduling.

In the first possible implementation of the 7th aspect, described Transmit-Receive Unit is additionally operable to by described The broadcast channel of two cells sends system message, carries the reference letter of described first community in described system message Number initial power information, or, the initial power information of the reference signal of described first community and described The power information of the reference signal that one cell is supported；Wherein, described initial power information is initial power level Or initial gain value, the power information of the reference signal of the support of described first community includes reference signal At least one power grade, or, at least one performance number of reference signal.

In conjunction with the first possible implementation of the 7th aspect, in the possible implementation of second, institute State the first power information and include following at least one：The reference signal of described first community is in described second moment Power grade, or, the reference signal of described first community in the performance number in described second moment, or, The reference signal of described first community described second moment power grade with respect to described first moment work( The variable quantity of rate grade, or, the reference signal of described first community is in the performance number phase in described second moment For the variable quantity of the performance number in described first moment, or, the reference signal of described first community is described The power grade in the second moment with respect to the variable quantity of described initial power level, or, described first community Reference signal initial gain value with respect to described initial gain value variable quantity.

In the third possible implementation of the 7th aspect, described first power information include following at least A kind of：The reference signal of described first community in the power grade in described second moment, or, described first The reference signal of cell in the performance number in described second moment, or, the reference signal of described first community exists The variable quantity of the power grade with respect to described first moment for the power grade in described second moment, or, institute State the reference signal of first community described second moment performance number with respect to described first moment performance number Variable quantity.

In conjunction with the 7th aspect, or the 7th aspect first any one possible implementation in the third, In the 4th kind of possible implementation, described down physical channel includes：Physical downlink control channel PDCCH, Or, physical mixed automatic re-transmission indicating channel PHICH, or, Physical Control Format Indicator Channel.

In conjunction with the 7th aspect, or the 7th aspect first any one possible implementation in the 4th kind, In the 5th kind of possible implementation, described first community and described second community are same cell.

In conjunction with the 7th aspect, or the 7th aspect first any one possible implementation in the 4th kind, In the 6th kind of possible implementation, described first community is secondary cell, and described second community is main plot； Described first power information also includes the cell ID of described first community.

In conjunction with the 7th aspect the 5th in the 6th kind any one possible implementation, possible at the 7th kind In implementation, described device is deployed in base station.

Eighth aspect, embodiments provides a kind of device of Power Control, and described device includes：Really Order unit and Transmit-Receive Unit；Wherein,

Described determining unit is used for determining the power grade in the second moment for the reference signal of first community；

Described Transmit-Receive Unit is used for sending downlink physical signal in the first moment by described first community, so that Obtain the power in the second moment for the reference signal that terminal determines described first community according to described downlink physical signal Grade；

In the first possible implementation of eighth aspect, the downlink physical signal packet of described second community Include power descrambling reference signals；

Described Transmit-Receive Unit sends downlink physical signal in the first moment by described first community, including：

Described Transmit-Receive Unit according to the reference signal of described first community the second moment power grade to cell The scrambling of DRS (Dedicated Reference Signal) sequence obtains described power descrambling reference signals；

Described Transmit-Receive Unit sends described power descrambling reference letter in described first moment by described first community Number, wherein, described first moment includes the time-domain position sending for cell special reference.

In the possible implementation of the second of eighth aspect, the downlink physical signal packet of described second community Include power notification sequence；

Described Transmit-Receive Unit determines corresponding in the power grade in the second moment with the reference signal of described first community Sequence as power notification sequence；

Described Transmit-Receive Unit sends described power notification sequence in the first moment by described first community, wherein, Described first moment includes the time-domain position sending for master sync signal, or, send out for auxiliary synchronous signals The time-domain position sending, or, the time-domain position of the idle channel exempting from licensed spectrum is detected.

In conjunction with eighth aspect, or eighth aspect first is to the possible implementation of second, can at the third In the implementation of energy, described device is deployed in base station.

9th aspect, embodiments provides a kind of device of Power Control, and described device includes：Really Order unit and Transmit-Receive Unit；Wherein,

Described determining unit is used for determining the transmission power change letter in the second moment for the reference signal of first community Breath；

Described Transmit-Receive Unit is used for passing through second community to terminal transmission described transmission power change in the first moment Information；

In the first possible implementation of the 9th aspect, the transmitting of the reference signal of described first community Power change patterns include at least one cycle and this cycle corresponding power information.

In conjunction with the first possible implementation of the 9th aspect, in the possible implementation of second, described Transmit-Receive Unit is additionally operable to send system message by the broadcast channel of described second community, in described system message Carry the initial power information of the reference signal of described first community, or, the reference letter of described first community Number initial power information and described first community support reference signal power information；Described initial power Information is initial power level or initial gain value, the power of the reference signal of the support of described first community Information includes at least one power grade of reference signal, or, at least one performance number of reference signal.

In conjunction with the possible implementation of the 9th aspect second, in the third possible implementation, described Cycle, corresponding power information included：The power grade in described cycle, or, the performance number in described cycle, Or, the variable quantity of the power grade in the described cycle power grade with respect to the previous cycle in described cycle, Or.The variable quantity of the performance number with respect to the previous cycle in described cycle for the performance number in described cycle, or, The power grade in described cycle is with respect to the variable quantity of described initial power level, or the power in described cycle Value is with respect to the variable quantity of described initial gain value.

In conjunction with the first possible implementation of the 9th aspect, in the 4th kind of possible implementation, described Cycle, corresponding power information included：The power grade in described cycle, or, the performance number in described cycle.

In conjunction with the 9th aspect, or any one possible implementation in first to fourth kind of the 9th aspect, In the 5th kind of possible implementation, described Transmit-Receive Unit is used for passing through second community to end in the first moment End sends described transmission power change information, including：

The DCCH that described Transmit-Receive Unit passes through second community in the first moment sends described sending out to terminal Penetrate changed power information；Or,

The broadcast channel that described Transmit-Receive Unit passes through second community in the first moment sends described transmitting work(to terminal Rate change information；Or,

Described Transmit-Receive Unit passes through the down physical channel of second community to transmitting work(described in terminal in the first moment Rate change information, the down physical channel of described second community is scrambled by power radio network mark RNTI, and And every TTI is by base station scheduling.

In conjunction with the 5th kind of possible implementation of the 9th aspect, in the 6th kind of possible implementation, described Down physical channel includes：Physical downlink control channel PDCCH, or, physical mixed autonomous retransmission instruction letter Road PHICH, or, Physical Control Format Indicator Channel.

In conjunction with the 9th aspect, or the 9th aspect first any one possible implementation in the 6th kind, In the 7th kind of possible implementation, described first community and described second community are same cell.

In conjunction with the 9th aspect, or the 9th aspect first any one possible implementation in the 6th kind, In the 8th kind of possible implementation, described first community is secondary cell, and described second community is main plot； Described transmission power change information also includes the cell ID of described first community.

In conjunction with the 9th aspect, or the 9th aspect first any one possible implementation in the 8th kind, In the 9th kind of possible implementation, described device is deployed in base station.

Tenth aspect, embodiments provides a kind of device of Power Control, and described device includes：Really Order unit and Transmit-Receive Unit；Wherein,

Described Transmit-Receive Unit is used for receiving the down physical channel transmission in the first moment by second community for the base station The first power information, or, described Transmit-Receive Unit receives base station and passes through medium education in the first moment The first power information that layer MAC Control Element CE sends；

Described determining unit is used for determining the reference signal of first community second according to described first power information The transmission power in moment；

In the first possible implementation of the tenth aspect, described Transmit-Receive Unit is additionally operable to receive described base Stand the system message being sent by the broadcast channel of described second community, in described system message, carry described the The initial power information of the reference signal of one cell, or, the initial power of the reference signal of described first community The power information of the reference signal of rate information and the support of described first community；Wherein, described initial power information For initial power level or initial gain value, the power information of the reference signal of the support of described first community Including at least one power grade of reference signal, or, at least one performance number of reference signal.

In conjunction with the first possible implementation of the tenth aspect, in the possible realization of the second of the tenth aspect In mode, described first power information includes following at least one：The reference signal of described first community is in institute State the power grade in the second moment, or, the reference signal of described first community is in the work(in described second moment Rate value, or, the reference signal of described first community described second moment power grade with respect to described The variable quantity of the power grade in the first moment, or, the reference signal of described first community is when described second The variable quantity of the performance number with respect to described first moment for the performance number carved, or, the ginseng of described first community Examine signal described second moment power grade with respect to described initial power level variable quantity, or, The initial gain value of the reference signal of described first community is with respect to the variable quantity of described initial gain value.

In the third possible implementation of the tenth aspect, described first power information include following at least A kind of：The reference signal of described first community in the power grade in described second moment, or, described first The reference signal of cell in the performance number in described second moment, or, the reference signal of described first community exists The variable quantity of the power grade with respect to described first moment for the power grade in described second moment, or, institute State the reference signal of first community described second moment performance number with respect to described first moment performance number Variable quantity.

In conjunction with the tenth aspect, or the first of the tenth aspect any one possible implementation in the third, In the 4th kind of possible implementation of the tenth aspect, described down physical channel includes：Including physical down Control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, or, physical control lattice Formula indicates channel.

In conjunction with any one possible implementation in the tenth aspect, or first to fourth kind of the tenth aspect, In the 5th kind of possible implementation of the tenth aspect, described first community and described second community are same little Area.

In conjunction with any one possible implementation in the tenth aspect, or first to fourth kind of the tenth aspect, In the 6th kind of possible implementation of the tenth aspect, described first community is secondary cell, described second community For main plot；Described first power information also includes the cell ID of described first community.

In conjunction with the tenth aspect, or the first of the tenth aspect any one possible implementation in the 6th kind, In the 7th kind of possible implementation of the tenth aspect, described device is deployed in terminal.

11st aspect, embodiments provides a kind of device of Power Control, and described device includes： Determining unit and Transmit-Receive Unit；Wherein,

Described Transmit-Receive Unit is used for receiving the downlink physical letter that base station is sent by first community in the first moment Number；

Described determining unit is used for determining that the reference signal of described first community exists according to described downlink physical signal The power grade in the second moment；

In the first possible implementation of the 11st aspect, the downlink physical signal of described second community Including power descrambling reference signals, described first moment includes the time domain sending for cell special reference Position；

Described determining unit is used for determining that the reference signal of described first community exists according to described downlink physical signal The power grade in the second moment, including：

Described determining unit determines the corresponding cell-specific reference of described power descrambling reference signals by blind Detecting Signal sequence；

Described determining unit power descrambling reference signals solution according to described cell special reference sequence pair Disturb the power grade determining the reference signal of described first community in the second moment.

In the possible implementation of the second of the 11st aspect, the downlink physical signal of described second community Including power notification sequence；Described first moment includes the time-domain position sending for master sync signal, or, The time-domain position sending for auxiliary synchronous signals, or, described base station detects the idle letter exempting from licensed spectrum The time-domain position in road；

Described determining unit determines the reference signal of described first community second according to described power notification sequence The power grade in moment.

In conjunction with any one possible realization in the 11st aspect, or the first to the second of the 11st aspect Mode, in the third possible implementation of the 11st aspect, described device is deployed in terminal.

12nd aspect, embodiments provides a kind of device of Power Control, and described device includes： Determining unit and Transmit-Receive Unit；Wherein,

Described Transmit-Receive Unit is used for receiving the transmission power change that base station is sent by second community in the first moment Information；

Described determining unit is used for determining that the reference signal of first community exists according to described transmission power change information The transmission power in the second moment；

In the first possible implementation of the 12nd aspect, the reference signal of described first community send out Penetrate power change patterns and include at least one cycle and this cycle corresponding power information.

In conjunction with the first possible implementation of the 12nd aspect, possible in the second of the 12nd aspect In implementation, described Transmit-Receive Unit is additionally operable to receive the broadcast channel by described second community for the described base station The system message sending, carries the initial power letter of the reference signal of described first community in described system message Breath, or, the ginseng of the initial power information of the reference signal of described first community and the support of described first community Examine the power information of signal；Described initial power information is initial power level or initial gain value, described The power information of the reference signal of the support of first community includes at least one power grade of reference signal, or Person, at least one performance number of reference signal.

In conjunction with the possible implementation of the second of the 12nd aspect, the third at the 12nd aspect is possible In implementation, described cycle, corresponding power information included：The power grade in described cycle, or, institute State the performance number in cycle, or, the power grade in described cycle is with respect to the work(in the previous cycle in described cycle The variable quantity of rate grade, or.The performance number in described cycle is with respect to the power in the previous cycle in described cycle The variable quantity of value, or, the power grade in described cycle with respect to the variable quantity of described initial power level, Or the performance number in described cycle is with respect to the variable quantity of described initial gain value.

In conjunction with the first possible implementation of the 12nd aspect, possible at the 4th kind of the 12nd aspect In implementation, described cycle, corresponding power information included：The power grade in described cycle, or, institute State the performance number in cycle.

In conjunction with any one possible realization in the 12nd aspect, or first to fourth kind of the 12nd aspect Mode, is used for receiving base station in the 5th kind of Transmit-Receive Unit described in possible implementation of the 12nd aspect The transmission power change information that one moment was sent by second community, including：

Described Transmit-Receive Unit is used for receiving the DCCH in the first moment by second community for the described base station The described transmission power change information sending；Or,

Described Transmit-Receive Unit is used for receiving the broadcast channel transmission in the first moment by second community for the described base station Described transmission power change information；Or,

Described Transmit-Receive Unit is used for receiving the down physical channel in the first moment by second community for the described base station The described transmission power change information sending, the down physical channel of described second community is by power radio network Mark RNTI scrambling, and every TTI is by described base station scheduling.

In conjunction with the 5th kind of possible implementation of the 12nd aspect, possible at the 6th kind of the 12nd aspect In implementation, described down physical channel includes：Physical downlink control channel PDCCH, or, physics mixes Close automatic re-transmission indicating channel PHICH, or, Physical Control Format Indicator Channel.

In conjunction with the 12nd aspect, or the first of the 12nd aspect any one possible realization in the 6th kind Mode, in the 7th kind of possible implementation of the 12nd aspect, described first community and described second community For same cell.

In conjunction with the 12nd aspect, or the first of the 12nd aspect any one possible realization in the 6th kind Mode, in the 8th kind of possible implementation of the 12nd aspect, described first community is secondary cell, described Second community is main plot；Described transmission power change information also includes the cell ID of described first community.

In conjunction with any one possible implementation in the 7th to the 8th kind of the 12nd aspect, in the 12nd side The 9th kind of possible implementation in face, described device is deployed in terminal.

13rd aspect, embodiments provides a kind of system of Power Control, and described system includes end End and base station；Wherein, described terminal includes the 7th kind in terms of the tenth, the 11st aspect the third or The device that in the 9th kind of 12 aspects, arbitrary possible implementation provides, described base station is included in terms of the 7th 7th kind, the device of arbitrary possible implementation in eighth aspect the third or the 9th kind of the 9th aspect.

The methods, devices and systems of the embodiment of the present invention, in the reference signal determining main plot or secondary cell Transmission power change when enable terminal quick obtaining to transmission power change information, such that it is able to realize millisecond Level fast power controls and reduces signaling consumption.

Brief description

The flow chart of the Poewr control method that Fig. 1 provides for one embodiment of the invention；

The flow chart of the Poewr control method that Fig. 2 provides for another embodiment of the present invention；

The schematic diagram of the transmission downlink physical signal time-domain position that Fig. 3 provides for another embodiment of the present invention；

The flow chart of the Poewr control method that Fig. 4 provides for another embodiment of the present invention；

The schematic diagram of the transmission power mechanical periodicity of the reference signal that Fig. 5 provides for another embodiment of the present invention；

The flow chart of the Poewr control method that Fig. 6 provides for another embodiment of the present invention；

The flow chart of the Poewr control method that Fig. 7 provides for another embodiment of the present invention；

The flow chart of the Poewr control method that Fig. 8 provides for another embodiment of the present invention；

The structure chart of the output control device that Fig. 9 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 10 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 11 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 12 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 13 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 14 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 15 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 16 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 17 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 18 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 19 provides for another embodiment of the present invention；

The structure chart of the output control device that Figure 20 provides for another embodiment of the present invention；

The composition figure of the power control system that Figure 21 provides for another embodiment of the present invention.

Specific 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 carried out clearly Chu, it is fully described by it is to be understood that described embodiment is only a part of embodiment of the present invention, Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing The every other embodiment being obtained under the premise of going out creative work, broadly falls into the scope of protection of the invention.

In the embodiment of the present invention methods, devices and systems can be realized by wireless access network equipment it is also possible to Realized by terminal.Wherein, wireless access network equipment include being not limited to following any one or more than one Common realize, e.g., evolved base station eNodeB, base station NodeB, radio network controller (RNC) or its The Access Control node of his access network equipment.Invent in each embodiment in the present invention, describe for convenience, with It is described as a example base station.It should be noted that being not limited to this.

It should be noted that the cell mentioned in the embodiment of the present invention can include macrocell and cell (small Cell), wherein, cell can include urban cells (metro cell), Microcell (micro cell), Picocell (pico cell), Femto cell (femto cell) etc., the present invention is not limited to this. These cells have the characteristics that coverage is little, transmission power is low it is adaptable to the data of offer two-forty passes Defeated service.In embodiments of the present invention, the carrier wave in LTE system is equal to the concept of cell, that is, Say, it is equivalent for accessing a carrier wave and one cell of access, describes for convenience, in the embodiment of the present invention Unification to be introduced with cell.In embodiments of the present invention, and the equipment of row data communication can be entered all in base station Terminal can be considered as, terminal can also include relaying Relay.

The flow chart of the Poewr control method that Fig. 1 provides for one embodiment of the invention, as illustrated, method includes：

Step 101, base station determine the transmission power in the second moment for the reference signal of first community.

In embodiments of the present invention, it is all so that the second community that base station is managed by it notifies terminal as a example.Its In, first community can be managed by same cell or base station with second community and second community Different cells, can also be the cell being managed by another base station.

In LAA system, base station can take duration according to exempting from licensed spectrum, or, cell opens (cell On) and cell close, or licensed spectrum and exempt from interference between licensed spectrum etc. come to determine main plot or In person's secondary cell, reference signal is in not transmission power in the same time.

In one embodiment of the invention, under CA mode, first community and second community are same cell When, can be main plot or secondary cell.Base station can be from the reference signal transmission power supported Determine a transmission power as the second moment, for example, base station determines the reference that -78dBm is first community Signal the second moment transmission power that is to say, that first community reference signal transmission power second Moment will launch according to -78dBm.It should be noted that numerical value here is intended merely to citing conveniently, not It is limited to this.

In another embodiment of the invention, first community and second community are different districts, supplemented by first community Cell, second community is main plot.If first community and second community are same BTS management, base station A transmission power as the second moment can be determined from the reference signal transmission power supported；If the One cell and second community are that different base station manages, then base station can be by the X2 interface between base station from managing the The base station of one cell obtains the transmission power in the second moment for the reference signal of first community.

The reference signal of the first community that step 102, base station determine according to step 101 is in the transmitting in the second moment Power determines the first power information.

Transmission power due to reference signal can represent in several ways, for example, power grade, performance number Deng.

In one embodiment of the invention, the performance number of reference signal can be corresponded with power grade, often The different performance number of individual power grade correspondence, correspondingly, each power grade can correspond to different covering models Enclose, the corresponding relation of the performance number of power grade and reference signal can be represented using table 1, reference signal Performance number unit be dBm (dBm), as shown in table 1, the corresponding reference signal of power grade 0 Performance number is -198dBm.The corresponding relation of the performance number of the power grade of reference signal and reference signal can lead to Cross protocol conventions, be separately recorded in base station and terminal.

The power grade of table 1 reference signal and the performance number corresponding relation of reference signal

Power grade	Reference signal power (dBm)
		0	-198
1	-158
		2	-118
3	-78

It should be noted that cited each numerical value in the various embodiments described above of the present invention, it is for being illustrated Illustrate, the present invention is not limited thereto, and table 1 is also only illustration, the present invention is not limited thereto.

Thus the first power information that base station is determined can also include much information.For example, the first power information The power grade in the second moment for the reference signal of first community can be included, or, the reference of first community Signal is in the performance number in the second moment.

Again for example, the first power information can also include the reference signal of the first community power etc. in the second moment Level with respect to current time power grade variable quantity, or, the reference signal of first community is when second The performance number carved is with respect to the variable quantity of the performance number of current time.Wherein, the transmission power of current time exists Base station will not change before not notifying terminal, if base station notifies terminal transmission work(in the first moment Rate changes, then reference signal is identical in the power grade of current time and the power grade in the first moment, Or reference signal is identical in the performance number of current time and the performance number in the first moment.

Again for example, before step 101, base station can send system message by the broadcast channel of second community, Include the initial power information of the reference signal of first community in system message, or, the ginseng of first community Examine the initial power information of signal and the power information of the reference signal of first community support.Wherein, initial power Rate information is initial power level or initial gain value, the power information of the reference signal that first community is supported Including at least one power grade of reference signal, or at least one performance number of reference signal.Thus the One power information can also include the reference signal of the first community power grade in the second moment with respect to initial The variable quantity of power grade, or, the initial gain value of the reference signal of first community is with respect to initial power The variable quantity of value.

It should be noted that above-mentioned all simply illustrate, the present invention is not limited to this.

If first community is different districts with second community, also need to including first community in the first power information Physical Cell Identifier (physical cell identity, PCI) indicate that the first power information is applied to the The reference signal of one cell.If first community and second community are same cell, can in the first power information To include the PCI of first community it is also possible to not include.

The first work(that step 103, base station were determined to terminal forwarding step 102 by second community in the first moment Rate information is so that terminal determines reference signal the sending out in the second moment of first community according to the first power information Penetrate power, wherein, the second moment was later than k Transmission Time Interval TTI of the first moment, k be more than or wait In 0 integer.Here k can be base station and terminal is made an appointment or base station notifies the parameter of terminal.

In order to reach the purpose of fast notification terminal transmission changed power, base station can notify end in several ways End.

In one embodiment of the invention, base station the first moment by the down physical channel of second community to The first power information that terminal forwarding step 102 determines, wherein, this down physical channel is by power wireless network Network mark RNTI scrambling, and in every TTI by described base station scheduling.

Here power RNTI is cell-level RNTI, can with cell-level RNTI defined in multiplex system, New cell-level RNTI can be defined for power information, down physical channel can be under physics Row control channel PDCCH or physical mixed automatic re-transmission indicating channel PHIC or, physical control Format indication channel, can also be using new down physical channel power information.The present invention is not limited to This.These down physical channels can in every TTI by base station scheduling, because TTI is millisecond period, thus First power information rapidly can be notified terminal.

In another embodiment of the invention, media access control layer MAC can also be passed through in the first moment in base station The first power information that control unit CE determines to terminal forwarding step 102.Millisecond equally can also be realized Fast notification.

By the method for the embodiment of the present invention, base station determines the transmitting work(of the reference signal of main plot or secondary cell During rate change, the down physical channel dispatched by every TTI or MAC CE fast notification terminal, thus can Control and reduce signaling consumption to realize Millisecond fast power.

The flow chart of the Poewr control method that Fig. 2 provides for another embodiment of the present invention, as illustrated, method bag Include：

Step 201, base station determine the power grade in the second moment for the reference signal of first community.

The cell that first community is managed by base station, can be the auxiliary little of the main plot of terminal or terminal Area.In LAA system, base station can determine according to various ways in main plot or secondary cell with reference to letter Number in not transmission power in the same time.Due to having been carried out describing in the aforementioned embodiment, no longer superfluous herein State.

In one embodiment of the invention, base station can determine one from the reference signal transmission power supported As the transmission power in the second moment, for example, base station determines reference signal that -78dBm is first community the The transmission power in two moment is that is to say, that the transmission power of the reference signal of first community will be by the second moment According to -78dBm transmitting.It should be noted that numerical value here be intended merely to citing convenient however it is not limited to this.

The power grade of reference signal can be corresponded with performance number, the different power of each power grade correspondence Value, correspondingly, each power grade can correspond to different coverages, power grade and reference signal The corresponding relation of performance number can also be represented using the table 1 in preceding method enforcement.The power of reference signal The corresponding relation of the performance number of grade and reference signal can pass through protocol conventions, is separately recorded in base station and end End.

Base station according to the transmission power in the second moment for the reference signal of first community determine first community Reference signal is in the power grade in the second moment.

Step 202, base station send downlink physical signal in the first moment by first community, so that terminal root Determine the power grade in the second moment for the reference signal of first community according to downlink physical signal；Wherein, second Moment is later than k Transmission Time Interval TTI of the first moment, and k is the integer more than or equal to 0.

Base station can be using the reference letter of the first community determining in multiple downlink physical signal forwarding steps 201 Number the second moment power grade.

In one embodiment of the invention, base station can select cell special reference (cell-specific Reference signal, CRS) time-domain position that sends is as the first moment, for example, conventional cyclic prefix When, at the 1st of each time slot of antenna opening 0 and 1 and the 5th symbol.It should be noted that here Simply citing however it is not limited to this.

The reference signal of the first community that base station determines according to step 201 the second moment power grade to CRS Sequence scrambling obtains power descrambling reference signals.A kind of being achieved in that can be initial to the generation of CRS sequence Change parameter c_initScrambling.With the bit sequence of power grade for { x₀, x₁..., x_n-1, wherein x_nIt is power etc. The high order bit of level, n is the bit number required for power grade coding, and the power grade that for example base station is supported has 4 grades, then need 2 bits to carry out one power grade of coded representation, that is, n is 2, initial before scrambling Change argument sequence is { b₀, b₁..., b_m-1, m is the bit number of initiation parameter sequence before scrambling, then power Deng the initiation parameter sequence { c after level scrambling₀, c₁..., c_m-1As shown in Equation 1：

Formula 1

Base station is according to initiation parameter sequence { c₀, c₁..., c_mGenerate power descrambling reference signals, in CRS The moment sending sends this power descrambling reference signals sequence.By blind Detecting, terminal can determine that power scrambles Reference signal corresponding CRS sequence, and solved according to this CRS sequence pair power descrambling reference signals sequence Disturb thus obtaining the power grade in the second moment for the reference signal of first community.

In another embodiment of the present invention, base station and terminal can define power sequence, each power sequence Correspond with power grade, base station can according to the reference signal of first community the second moment power etc. Level determines the corresponding power sequence of this power grade as power notification sequence.For example, power grade 0 is corresponding Power sequence be { a₀₀, a₀₁..., a_0p, p is positive integer, and the corresponding power sequence of power grade 1 is {a₁₀, a₁₁..., a_1p, if the reference signal of the first community determining in step 201 is in the second moment Power grade is 1, then by { a₁₀, a₁₁..., a_1pAs power notification sequence.

Base station can select master sync signal send time-domain position, or, for auxiliary synchronous signals send when Domain position, or, base station detects the work(determined by time-domain position transmission of the idle channel exempting from licensed spectrum Rate notification sequence., Fig. 3 is this taking the time-domain position that base station detects the idle channel exempting from licensed spectrum as a example The base station that inventing another embodiment provides sends the schematic diagram of the time-domain position of downlink physical signal, as Fig. 3 institute Show, in LAA system, base station detects the idle letter exempting from licensed spectrum at the time-domain position 1 of subframe 1 Road, in order to take this channel, base station, from the beginning of the position 1 of subframe 1, was sent out before arriving in subframe 2 border Send power notification sequence, and start to send data in subframe 2.When terminal detects this power notification sequence, Corresponding power grade can be got.

It should be noted that above-mentioned all simply illustrate, the embodiment of the present invention is not limited to this.

By the method for the embodiment of the present invention, base station determines the transmitting work(of the reference signal of main plot or secondary cell During rate change, by downlink physical signal fast notification terminal, such that it is able to realize Millisecond fast power control Make and reduce signaling consumption.

The flow chart of the Poewr control method that Fig. 4 provides for another embodiment of the present invention, as illustrated, method bag Include：

Step 401, base station determine the transmission power change information in the second moment for the reference signal of first community. Wherein, transmission power change information at least includes following one kind, the transmission power of the reference signal of first community Changing pattern and the second moment.

Second moment can be coming into force the moment of the transmission power changing pattern of reference signal of first community.

The transmission power changing pattern of the reference signal of first community can include at least one cycle and this cycle Corresponding power information.

In LAA system, base station can take duration according to exempting from licensed spectrum, or, cell opens (cell ) and cell is closed etc. determining the transmission power changing pattern of reference signal in main plot or secondary cell on. For example, as shown in figure 5, opening for cell and in the case of cell closes, the transmission power of reference signal week Phase change schematic diagram, start in moment t, reference signal will transmitting duration t1 in 20dBm send out Penetrate power emission, with the transmission power transmitting of 8dBm, loop cycle in transmitting duration t2.That is Coming into force of the transmission power changing pattern of the reference signal of one cell is t constantly, cycle t1 corresponding transmitting work( Rate is 20dBm, and the corresponding transmission power of cycle t2 is 8dBm.It should be noted that simply illustrate herein, The present invention is not limited to this.

Transmission power due to reference signal can represent in several ways, for example, power grade, performance number Deng.The power grade of reference signal can be corresponded with performance number, the different work(of each power grade correspondence Rate value, correspondingly, each power grade can correspond to different coverages, power grade and reference signal Performance number corresponding relation can also be implemented using preceding method in table 1 representing.The work(of reference signal The corresponding relation of the performance number of rate grade and reference signal can pass through protocol conventions, be separately recorded in base station and Terminal.

Cycle, corresponding power information can also include much information.For example, it is possible to include the reference letter in this cycle Number power grade, or, the performance number of the reference signal in this cycle.

Again for example, cycle corresponding power information can also include the power grade of the reference signal in this cycle relatively In the variable quantity of the power grade of the reference signal in previous cycle, or, the power of the reference signal in this cycle The variable quantity of the performance number with respect to the reference signal in previous cycle for the value.

Again for example, before step 401, base station can send system message by the broadcast channel of second community, Include the initial power information of the reference signal of first community in system message, or, the ginseng of first community Examine the initial power information of signal and the power information of the reference signal of first community support.Wherein, initial power Rate information is initial power level or initial gain value, the power information of the reference signal that first community is supported Including at least one power grade of reference signal, or at least one performance number of reference signal.Thus it is all Phase corresponding power information can also include the power grade of the reference signal in this cycle with respect to initial power etc. The variable quantity of level, or, the performance number of the reference signal in this cycle is with respect to the variable quantity of initial gain value.

If first community is different districts with second community, also need to including first in transmission power change information The PCI of cell indicates that transmission power change information is applied to the reference signal of first community.If first community with Second community be same cell, then can include the PCI of first community in transmission power change information it is also possible to Do not include.

In another embodiment of the invention, first community and second community are different districts, supplemented by first community Cell, second community is main plot.If first community is managed for different base station with second community, base station The reference signal of first community can be obtained the from the base station of management first community by the X2 interface between base station The transmission power change information in two moment.

The transmitting work(that step 402, base station were determined to terminal forwarding step 401 by second community in the first moment Rate change information.

Wherein, the second moment was later than described k Transmission Time Interval TTI of first moment, k be more than or wait In 0 integer,

Base station can send transmission power change information using various ways to terminal, because transmission power is the cycle Change, transmission power change information is relatively stable, therefore need not notify end by the way of fast notification End.

For example, the DCCH that second community can be passed through in the first moment in base station sends transmitting work(to terminal Rate change information；Again for example, base station can be sent out to terminal by the broadcast channel of second community in the first moment Send transmission power change information；Again for example, the descending thing that base station can also be in the first moment by second community Reason channel sends transmission power change information to terminal, and this down physical channel is identified by power radio network RNTI scrambles, and every TTI is by base station scheduling.Here power RNTI is cell-level RNTI, can be multiplexed Defined cell-level RNTI in system is used for transmit power it is also possible to define new cell-level RNTI Information, down physical channel can be physical downlink control channel PDCCH or physical mixed weighs automatically Pass instruction channel PHIC or, Physical Control Format Indicator Channel, can also be using new down physical channel Power information.

By the method for the embodiment of the present invention, base station determines the transmitting work(of the reference signal of main plot or secondary cell Rate changing pattern simultaneously notifies terminal in time, and terminal, after getting transmission power change information, can come into force Determine after moment that reference signal transmission power at any one time changes in each transmission power without waiting for base station Notify during change, such that it is able to realizing fast power control and reducing signaling consumption.

The flow chart of the Poewr control method that Fig. 6 provides for one embodiment of the invention, as illustrated, method includes：

Step 601, terminal receive the first power information that base station is sent by second community in the first moment.

In one embodiment of the invention, terminal receives the descending thing that second community is passed through in base station in the first moment The first power information that reason channel sends, wherein, this down physical channel is identified RNTI by power radio network Scrambling, and in every TTI by described base station scheduling.

Here power RNTI is cell-level RNTI, can with cell-level RNTI defined in multiplex system, New cell-level RNTI can be defined for power information, down physical channel can be under physics Row control channel PDCCH or physical mixed automatic re-transmission indicating channel PHIC or, physical control Format indication channel, can also be using new down physical channel power information.The present invention is not limited to This.These down physical channels can be in every TTI by base station scheduling, because TTI is millisecond period, therefore Terminal can quickly receive the first power information.

In another embodiment of the invention, terminal can also receive base station and access control in the first moment by media The first power information that preparative layer MAC Control Element CE sends.The fast notification of Millisecond equally can also be realized.

In one embodiment of the invention, the performance number of reference signal can be corresponded with power grade, often The different performance number of individual power grade correspondence, correspondingly, each power grade can correspond to different covering models Enclose, the corresponding relation of the performance number of power grade and reference signal can also be using table 1 in preceding method embodiment To represent.The corresponding relation of the performance number of the power grade of reference signal and reference signal can by agreement about Fixed, it is separately recorded in base station and terminal.

Thus the first power information that base station sends can also include much information.For example, the first power information can To include the power grade in the second moment for the reference signal of first community, or, the reference letter of first community Number the second moment performance number.

Again for example, before step 601, terminal receives base station and sends system by the broadcast channel of second community Message, includes the initial power information of the reference signal of first community in system message, or, first is little The power information of the reference signal of the initial power information of the reference signal in area and first community support.Wherein, Initial power information is initial power level or initial gain value, the work(of the reference signal that first community is supported Rate information includes at least one power grade of reference signal, or at least one performance number of reference signal. Thus the first power information can also include the reference signal of first community the second moment power grade relatively In the variable quantity of initial power level, or, the reference signal of first community is in the second moment with respect to first The variable quantity of beginning performance number.

Step 602, terminal determine the reference of first community according to the first power information receiving in step 601 Signal is in the transmission power in the second moment.

Wherein, the second moment was later than k Transmission Time Interval TTI of the first moment, and k is more than or equal to 0 Integer.Here k can be base station and terminal is made an appointment or base station notifies the parameter of terminal.

Terminal can determine that the reference letter of first community according to the first power information receiving in step 601 Number the second moment transmission power.

For example, the first power information is the power grade in the second moment for the reference signal of first community, or, In the performance number in the second moment, terminal directly determines the reference signal of first community according to the first power information Go out the transmission power in the second moment for the reference signal of first community.

Again for example, the first power information be first community reference signal the second moment power grade with respect to The variable quantity of the power grade of current time, or, the reference signal of first community is in the power in the second moment When being worth the variable quantity with respect to the performance number of current time, terminal can be according to the work(of current time reference signal Rate grade or performance number and above-mentioned variable quantity determine reference signal the sending out in the second moment of first community Penetrate power.

Again for example, the first power information be first community reference signal the second moment power grade with respect to The variable quantity of initial power level, or, the reference signal of first community is in the second moment with respect to initial The variable quantity of performance number, terminal can according to the initial power level of reference signal or initial gain value and Above-mentioned variable quantity determines the transmission power in the second moment for the reference signal of first community.

Terminal determines the reference signal of first community after the transmission power in the second moment, when can be used for second Channel estimation after quarter and wireless measurement.

By the method for the embodiment of the present invention, the transmission power change of the reference signal of main plot or secondary cell When, terminal the down physical channel that can be scheduled or MAC CE can determine that master is little by TTI every in cell The transmission power of the reference signal of area or secondary cell, controls and reduces such that it is able to realize Millisecond fast power Signaling consumption.

The flow chart of the Poewr control method that Fig. 7 provides for another embodiment of the present invention, as illustrated, method bag Include：

Step 701, terminal receive the downlink physical signal that base station is sent by first community in the first moment；

The cell that first community is managed by base station, can be the auxiliary little of the main plot of terminal or terminal Area.

Step 702, terminal determine the reference letter of first community according to the downlink physical signal that step 701 receives Number the second moment emitting power grade.

Wherein, the second moment was later than k Transmission Time Interval TTI of the first moment, and k is more than or equal to 0 Integer.

Terminal can receive the downlink physical that base station was sent by first community in the first moment in several ways Signal.

For example, the first moment was the time-domain position sending for CRS, and downlink physical signal is power descrambling reference Signal.Terminal determines power descrambling reference signals corresponding CRS sequence by blind Detecting, and according to this CRS The power descrambling reference signals that sequence docking receives descramble to determine the reference signal of first community in the second moment Power grade.

Again for example, base station and terminal can define power sequence, and each power sequence and power grade correspond, According to the reference signal of first community, the power grade in the second moment determines a power sequence as work(for base station Rate notification sequence is that is to say, that downlink physical signal is power notification sequence.First moment was for main synchronization The time-domain position that signal sends, or, the time-domain position sending for auxiliary synchronous signals, or, described base Station detects the time-domain position of the idle channel exempting from licensed spectrum.Terminal is according to the power notification sequence receiving Determine the power grade in the second moment for the reference signal of described first community.

By the method for the embodiment of the present invention, the transmission power change of the reference signal of main plot or secondary cell When, terminal can determine the transmitting of the reference signal of main plot or secondary cell by downlink physical signal in cell Power, controls and reduces signaling consumption such that it is able to realize Millisecond fast power.

The flow chart of the Poewr control method that Fig. 8 provides for one embodiment of the invention, as illustrated, method includes：

Step 801, terminal receive the transmission power change letter that base station is sent by second community in the first moment Breath；Wherein, transmission power change information at least includes following one kind, the transmitting of the reference signal of first community Power change patterns and the second moment.

Wherein, first community can be managed by same cell or base station with second community with second A different cell of cell, can also be the cell being managed by another base station.

Second moment can be coming into force the moment of the transmission power changing pattern of reference signal of first community, and evening In k Transmission Time Interval TTI of the first moment, k is the integer more than or equal to 0.

The transmission power changing pattern of the reference signal of first community can include at least one cycle and this cycle Corresponding power information., have been carried out describing, herein not in preceding method embodiment taking Fig. 5 as a example Repeat again.

Again for example, before step 801, base station can send system message by the broadcast channel of second community, Include the initial power information of the reference signal of first community in system message, or, the ginseng of first community Examine the initial power information of signal and the power information of the reference signal of first community support.Wherein, initial power Rate information is initial power level or initial gain value, the power information of the reference signal that first community is supported Including at least one power grade of reference signal, or at least one performance number of reference signal.Thus it is all Phase corresponding power information can also include the power grade of the reference signal in this cycle with respect to initial power etc. The variable quantity of level, or, the performance number of the reference signal in this cycle is with respect to the variable quantity of initial gain value.

Because transmission power is mechanical periodicity, transmission power change information is relatively stable, and terminal can be passed through many The mode of kind receives the transmission power change information of base station transmission.

For example, terminal can receive base station in the first moment by sending out that the DCCH of second community sends Penetrate changed power information；Again for example, terminal can receive the broadcast in the first moment by second community for the base station The transmission power change information that channel sends；Again for example, terminal can receive base station and passes through the in the first moment The transmission power change information that the down physical channel of two cells sends, this down physical channel is wireless by power Network identity RNTI scrambles, and every TTI is by base station scheduling.Here power RNTI is cell-level RNTI, Can be used for it is also possible to define new cell-level RNTI with cell-level RNTI defined in multiplex system Power information, down physical channel can be physical downlink control channel PDCCH or physics mixes Close automatic re-transmission indicating channel PHIC or, Physical Control Format Indicator Channel, can also be using new descending Physical channel power information.

Step 802, terminal determine first community according to the transmission power change information receiving in step 801 Transmission power after the second moment for the reference signal.

According to transmission power changing pattern, terminal, after receiving transmission power change information, can determine that first is little The transmission power of the reference signal in area any instant after the second moment.For example, transmission power changing pattern Include the cycle 1 for 2 milliseconds, the cycle 2 is 3 milliseconds, cycle 1 corresponding transmission power is 20dBm, week Phase 2 corresponding transmission power is 8dBm, then the 8th millisecond of corresponding cycle 2 after the moment of coming into force, when coming into force After quarter, the 8th millisecond of transmission power is 8dBm.It should be noted that above-mentioned all simply illustrate, the present invention It is not limited to this.

By the method for the embodiment of the present invention, terminal is getting main plot or secondary cell transmission power change letter After breath, reference signal transmission power at any one time can be determined after the moment of coming into force and without waiting for base station Notify when each transmission power changes, such that it is able to realizing fast power control and reducing signaling consumption.

The structure chart of the output control device that Fig. 9 provides for another embodiment of the present invention, the embodiment of the present invention provides Output control device can realize said method embodiment of the present invention.This output control device can be deployed in In the wireless access network control device such as base station, herein for convenience of describing, taking base station as a example illustrate, this Bright embodiment is not limited to this.As illustrated, this output control device 900, including：First determining unit 901, the second determining unit 902 and Transmit-Receive Unit 903.Wherein：

First determining unit 901, for determining the transmission power in the second moment for the reference signal of first community.

In embodiments of the present invention, it is all the base station institute deploying this device passing through with output control device 900 As a example the second community of management notifies terminal.Wherein, first community can be same cell with second community, Can also be different from the second community cell that base station is managed, can also be and managed by another base station The cell of reason.

In one embodiment of the invention, under CA mode, first community and second community are same cell When, can be main plot or secondary cell.First determining unit 901 can be from the reference letter supported A transmission power as the second moment is determined, for example, the first determining unit 901 is true in number transmission power Fixed -78dBm be first community reference signal the second moment transmission power that is to say, that first community The transmission power of reference signal will be launched according to -78dBm in the second moment.It should be noted that number here Value be intended merely to citing convenient however it is not limited to this.

In another embodiment of the invention, first community and second community are different districts, supplemented by first community Cell, second community is main plot.If first community and second community are same BTS management, first Determining unit 901 can determine a transmitting as the second moment from the reference signal transmission power supported Power；If first community is managed for different base station with second community, the first determining unit 901 can be led to The X2 interface crossed between base station obtains the reference signal of first community in the second moment from the base station of management first community Transmission power.

Second determining unit 902, for the reference letter of first community according to determined by the first determining unit 901 Transmission power number in the second moment determines the first power information.

In one embodiment of the invention, the performance number of reference signal can be corresponded with power grade, often The different performance number of individual power grade correspondence, correspondingly, each power grade can correspond to different covering models Enclose, the corresponding relation of the performance number of power grade and reference signal can be represented using table 1, reference signal Performance number unit be dBm (dBm), as shown in table 1 in preceding method embodiment, power grade 0 The performance number of corresponding reference signal is -198dBm.The power grade of reference signal and the performance number of reference signal Corresponding relation can pass through protocol conventions, be separately recorded in base station and terminal.

It should be noted that cited each numerical value in the various embodiments described above of the present invention, it is for being illustrated Illustrate, the present invention is not limited thereto.

Thus the first power information that the second determining unit 902 is determined can also include much information.For example, First power information can include the power grade in the second moment for the reference signal of first community, or, the The reference signal of one cell is in the performance number in the second moment.

Again for example, Transmit-Receive Unit 903 can send system message by the broadcast channel of second community, in system Message includes the initial power information of the reference signal of first community, or, the reference signal of first community Initial power information and first community support reference signal power information.Wherein, initial power information The power information of the reference signal supported for initial power level or initial gain value, first community includes joining Examine at least one power grade of signal, or at least one performance number of reference signal.Thus the first power Information can also include the reference signal of the first community power grade in the second moment with respect to initial power etc. The variable quantity of level, or, the initial gain value of the reference signal of first community is with respect to the change of initial gain value Change amount.

Transmit-Receive Unit 903, sends the second determining unit 902 for passing through second community in the first moment to terminal Determined by the first power information so that terminal determines the reference signal of first community according to the first power information In the transmission power in the second moment, wherein, the second moment was later than k Transmission Time Interval TTI of the first moment, K is the integer more than or equal to 0.Here k can be base station and terminal is made an appointment or base station notice end The parameter at end.

In order to reach the purpose of fast notification terminal transmission changed power, Transmit-Receive Unit 903 can pass through multiple sides Formula notifies terminal.

In one embodiment of the invention, Transmit-Receive Unit 903 passes through the descending thing of second community in the first moment Reason channel sends the first power information determined by the second determining unit 902, wherein, this descending thing to terminal Reason channel is scrambled by power radio network mark RNTI, and in every TTI by described base station scheduling.

In another embodiment of the invention, Transmit-Receive Unit 903 can also access control in the first moment by media Preparative layer MAC Control Element CE sends, to terminal, the first power information that the second determining unit 902 determines.Equally The fast notification of Millisecond can also be realized.

It should be noted that in the embodiment of the present invention, the first determining unit 901, the second determining unit 902, Transmit-Receive Unit 903 can be realized by one or more processors.Interaction flow tool between above-mentioned each unit Body may be referred to the description in embodiment of the method shown in Fig. 1, repeats no more here.

The output control device of the embodiment of the present invention, in the transmitting of the reference signal determining main plot or secondary cell During changed power, the down physical channel dispatched by every TTI or MAC CE fast notification terminal, thus Millisecond fast power can be realized control and reduce signaling consumption.

The structure chart of the output control device that Figure 10 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the wireless access network control device such as base station, herein for convenience of describing, taking base station as a example illustrate, this Inventive embodiments are not limited to this.As illustrated, this output control device 1000, including：Determining unit 1001 With Transmit-Receive Unit 1002.Wherein：

Determining unit 1001, for determining the power grade in the second moment for the reference signal of first community.

First community is to deploy the cell that the base station of output control device 1000 is managed, and can be terminal Main plot or the secondary cell of terminal.In LAA system, the first determining unit 1001 can basis Various ways are determining that in main plot or secondary cell, reference signal is in not transmission power in the same time.Due to Have been carried out in previous embodiment describing, here is omitted.

The transmission power in the second moment for the reference signal of the first community of determining unit 1001 basis determines The reference signal of one cell is in the power grade in the second moment.

Transmit-Receive Unit 1002, for downlink physical signal being sent by first community in the first moment, so that Terminal determines the power grade in the second moment for the reference signal of first community according to downlink physical signal；Wherein, Second moment was later than k Transmission Time Interval TTI of the first moment, and k is the integer more than or equal to 0.

Transmit-Receive Unit 1002 can be sent determined by the first determining unit 1001 using multiple downlink physical signals The reference signal of first community is in the power grade in the second moment.

In one embodiment of the invention, Transmit-Receive Unit 1002 can select cell special reference The time-domain position that (cell-specific reference signal, CRS) sends is as the first moment, example As during conventional cyclic prefix, at the 1st of each time slot of antenna opening 0 and 1 and the 5th symbol.Need It is noted that merely just citing however it is not limited to this.

The reference signal of Transmit-Receive Unit 1002 first community according to determined by determining unit 1001 is in the second moment Power grade to CRS sequence scramble obtain power descrambling reference signals.

Transmit-Receive Unit 1002 is according to initiation parameter sequence { c₀, c₁..., c_mGenerate power descrambling reference signals, The moment sending in CRS sends this power descrambling reference signals sequence.The method of scrambling is implemented in preceding method It is described in example, here is omitted.Terminal can determine power descrambling reference signals by blind Detecting Corresponding CRS sequence, and descrambled thus obtaining according to this CRS sequence pair power descrambling reference signals sequence Obtain the power grade in the second moment for the reference signal of first community.

In another embodiment of the present invention, base station and terminal can define power sequence, each power sequence Correspond with power grade, Transmit-Receive Unit 1002 can be according to the reference signal of first community in the second moment Power grade determine the corresponding power sequence of this power grade as power notification sequence.For example, power etc. Level 0 corresponding power sequence is { a₀₀, a₀₁..., a_0p, p is positive integer, the corresponding work(of power grade 1 Rate sequence is { a₁₀, a₁₁..., a_1p, if the reference signal of the first community determining in step 201 is the The power grade in two moment is 1, then by { a₁₀, a₁₁..., a_1pAs power notification sequence.

Transmit-Receive Unit 1002 can select the time-domain position that master sync signal sends, or, for auxiliary synchronous letter Number time-domain position sending, or, the time-domain position idle channel exempting from licensed spectrum is detected sends institute really Fixed power notification sequence.Due to being described in preceding method embodiment, here is omitted.

It should be noted that in the embodiment of the present invention, determining unit 1001, Transmit-Receive Unit 1002 can pass through One or more processors are realized.Interaction flow between above-mentioned each unit specifically may be referred to side shown in Fig. 2 Description in method embodiment, repeats no more here.

The output control device of the embodiment of the present invention, in the transmitting of the reference signal determining main plot or secondary cell During changed power, by downlink physical signal fast notification terminal, such that it is able to realize Millisecond fast power Control and reduce signaling consumption.

The structure chart of the output control device that Figure 11 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the wireless access network control device such as base station, herein for convenience of describing, taking base station as a example illustrate, this Inventive embodiments are not limited to this.As illustrated, this output control device 1100, including：Determining unit 1101 With Transmit-Receive Unit 1102.Wherein,

Determining unit 1101, for determining the transmission power change in the second moment for the reference signal of first community Information.Wherein, transmission power change information at least includes following one kind, the sending out of the reference signal of first community Penetrate power change patterns and the second moment.

In embodiments of the present invention, it is all the base station deploying this device passed through with output control device 1100 As a example the second community being managed notifies terminal.Wherein, first community can be same cell with second community, Can also be different from the second community cell that base station is managed, can also be and managed by another base station The cell of reason.

In LAA system, determining unit 1101 can take duration according to exempting from licensed spectrum, or, cell Open (cell on) and cell closing etc. to determine the transmitting work(of reference signal in main plot or secondary cell Rate changing pattern.Can be found in aforementioned manner embodiment, here is omitted.

Again for example, Transmit-Receive Unit 1102 can send system message by the broadcast channel of second community, is being System message includes the initial power information of the reference signal of first community, or, the reference letter of first community Number initial power information and first community support reference signal power information.Wherein, initial power letter The power information ceasing the reference signal supported for initial power level or initial gain value, first community includes At least one power grade of reference signal, or at least one performance number of reference signal.Thus the cycle pair The power information answered can also include the power grade of the reference signal in this cycle with respect to initial power level Variable quantity, or, the performance number of the reference signal in this cycle is with respect to the variable quantity of initial gain value.

In another embodiment of the invention, first community and second community are different districts, supplemented by first community Cell, second community is main plot.If first community and second community are different base station manage it is determined that Unit 1101 can obtain the ginseng of first community by the X2 interface between base station from the base station of management first community Examine the transmission power change information in the second moment for the signal.

Transmit-Receive Unit 1102, sends determining unit 1101 institute for passing through second community in the first moment to terminal The transmission power change information determining.

Transmit-Receive Unit 1102 can send transmission power change information using various ways to terminal, due to transmitting Power is mechanical periodicity, and transmission power change information is relatively stable, therefore need not adopt the side of fast notification Formula notifies terminal.

For example, Transmit-Receive Unit 1102 can pass through the DCCH of second community to terminal in the first moment Send transmission power change information；Again for example, Transmit-Receive Unit 1102 can pass through second community in the first moment Broadcast channel to terminal send transmission power change information；Again for example, Transmit-Receive Unit 1102 can also be the The down physical channel that one moment passed through second community sends transmission power change information, this descending thing to terminal Reason channel is scrambled by power radio network mark RNTI, and every TTI is by base station scheduling.Here power RNTI Cell-level RNTI, can with cell-level RNTI defined in multiplex system it is also possible to define one new Cell-level RNTI is used for power information, and down physical channel can be physical downlink control channel PDCCH, Can also be physical mixed automatic re-transmission indicating channel PHIC or, Physical Control Format Indicator Channel, also may be used With using new down physical channel power information.

It should be noted that in the embodiment of the present invention, determining unit 1101, Transmit-Receive Unit 1102 can pass through One or more processors are realized.Interaction flow between above-mentioned each unit specifically may be referred to side shown in Fig. 4 Description in method embodiment, repeats no more here.

The output control device of the embodiment of the present invention, in the transmitting of the reference signal determining main plot or secondary cell Terminal is notified in time, terminal, after getting transmission power change information, can given birth to during power change patterns When determining after the effect moment that reference signal transmission power at any one time changes without waiting for each transmission power Notify, such that it is able to realizing fast power control and reducing signaling consumption.

The structure chart of the output control device that Figure 12 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the terminal, the embodiment of the present invention is not limited to this.As illustrated, this output control device 1200, including： Determining unit 1201 and Transmit-Receive Unit 1202.Wherein：

Transmit-Receive Unit 1202, for receiving the first power letter that base station is sent by second community in the first moment Breath.

In one embodiment of the invention, Transmit-Receive Unit 1202 reception base station is little by second in the first moment The first power information that the down physical channel in area sends, wherein, this down physical channel is by power wireless network Network mark RNTI scrambling, and in every TTI by described base station scheduling.

Here power RNTI is cell-level RNTI, can with cell-level RNTI defined in multiplex system, New cell-level RNTI can be defined for power information, down physical channel can be under physics Row control channel PDCCH or physical mixed automatic re-transmission indicating channel PHIC or, physical control Format indication channel, can also be using new down physical channel power information.The present invention is not limited to This.These down physical channels can be in every TTI by base station scheduling, because TTI is millisecond period, therefore Transmit-Receive Unit 1202 can quickly receive the first power information.

In another embodiment of the invention, Transmit-Receive Unit 1202 can also receive base station and pass through in the first moment The first power information that media access control layer MAC Control Element CE sends.Millisecond equally can also be realized Fast notification.

Again for example, Transmit-Receive Unit 1202 can also receive base station by what the broadcast channel of second community sent and is System message, includes the initial power information of the reference signal of first community in system message, or, first The power information of the reference signal of the initial power information of the reference signal of cell and first community support.Wherein, Initial power information is initial power level or initial gain value, the work(of the reference signal that first community is supported Rate information includes at least one power grade of reference signal, or at least one performance number of reference signal. Thus the first power information can also include the reference signal of first community the second moment power grade relatively In the variable quantity of initial power level, or, the reference signal of first community is in the second moment with respect to first The variable quantity of beginning performance number.

Determining unit 1201, determines first for the first power information according to received by Transmit-Receive Unit 1202 The reference signal of cell is in the transmission power in the second moment.

First power information according to received by Transmit-Receive Unit 1202 for the determining unit 1201 can determine that first The reference signal of cell is in the transmission power in the second moment.

For example, the first power information is the power grade in the second moment for the reference signal of first community, or, , in the performance number in the second moment, determining unit 1201 is directly according to the first power for the reference signal of first community Information determines the transmission power in the second moment for the reference signal of first community.

Again for example, the first power information be first community reference signal the second moment power grade with respect to The variable quantity of the power grade of current time, or, the reference signal of first community is in the power in the second moment When being worth the variable quantity with respect to the performance number of current time, determining unit 1201 can be according to current time reference The power grade of signal or performance number and above-mentioned variable quantity determine the reference signal of first community second The transmission power in moment.

Again for example, the first power information be first community reference signal the second moment power grade with respect to The variable quantity of initial power level, or, the reference signal of first community is in the second moment with respect to initial The variable quantity of performance number, determining unit 1201 can be according to the initial power level of reference signal or initial power Rate value and above-mentioned variable quantity determine the transmission power in the second moment for the reference signal of first community.

Determining unit 1201 determines the reference signal of first community after the transmission power in the second moment, permissible For the channel estimation after the second moment and wireless measurement.

It should be noted that in the embodiment of the present invention, determining unit 1201, Transmit-Receive Unit 1202 can pass through One or more processors are realized.Interaction flow between above-mentioned each unit specifically may be referred to side shown in Fig. 6 Description in method embodiment, repeats no more here.

The output control device of the embodiment of the present invention, in the transmission power of main plot or the reference signal of secondary cell During change, the down physical channel that can be scheduled or MAC CE can determine that master is little by TTI every in cell The transmission power of the reference signal of area or secondary cell, controls and reduces such that it is able to realize Millisecond fast power Signaling consumption.

The structure chart of the output control device that Figure 13 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the terminal, the embodiment of the present invention is not limited to this.As illustrated, this output control device 1300, including： Determining unit 1301 and Transmit-Receive Unit 1302

Transmit-Receive Unit 1302, is believed by the downlink physical that first community sends in the first moment for receiving base station Number.Wherein, the cell that first community is managed by base station, can deploy output control device 1300 The main plot of terminal or the secondary cell of this terminal.

Determining unit 1301, the downlink physical signal for being received according to Transmit-Receive Unit 1302 determines that first is little The reference signal in area is in the emitting power grade in the second moment.

Transmit-Receive Unit 1302 can be received base station in several ways and be sent by first community in the first moment Downlink physical signal.

For example, the first moment was the time-domain position sending for CRS, and downlink physical signal is power descrambling reference Signal.Transmit-Receive Unit 1302 determines, by blind Detecting, the power that Transmit-Receive Unit 1302 arrives in the first reception Descrambling reference signals corresponding CRS sequence, and the power descrambling reference letter being received according to this CRS sequence docking Number descrambling is determining the power grade in the second moment for the reference signal of first community.

Again for example, base station and terminal can define power sequence, and each power sequence and power grade correspond, According to the reference signal of first community, the power grade in the second moment determines a power sequence as work(for base station Rate notification sequence is that is to say, that downlink physical signal is power notification sequence.First moment was for main synchronization The time-domain position that signal sends, or, the time-domain position sending for auxiliary synchronous signals, or, base station is examined Measure the time-domain position of the idle channel exempting from licensed spectrum.Determining unit 1301 connects according to Transmit-Receive Unit 1302 The power notification sequence receiving determines the power grade in the second moment for the reference signal of described first community.

It should be noted that in the embodiment of the present invention, determining unit 1301, Transmit-Receive Unit 1302 can pass through One or more processors are realized.Interaction flow between above-mentioned each unit specifically may be referred to side shown in Fig. 7 Description in method embodiment, repeats no more here.

The output control device of the embodiment of the present invention, in the transmission power of main plot or the reference signal of secondary cell The transmitting of the reference signal of main plot or secondary cell during change, can be determined by downlink physical signal in cell Power, controls and reduces signaling consumption such that it is able to realize Millisecond fast power.

The structure chart of the output control device that Figure 14 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the terminal, the embodiment of the present invention is not limited to this.As illustrated, this output control device 1400, including： Determining unit 1401 and Transmit-Receive Unit 1402.Wherein,

Transmit-Receive Unit 1402, is become by the transmission power that second community sends in the first moment for receiving base station Change information；Wherein, transmission power change information at least includes following one kind, the reference signal of first community Transmission power changing pattern and the second moment.

Again for example, Transmit-Receive Unit 1402 can also pass through the broadcast channel reception system message of second community, System message includes the initial power information of the reference signal of first community, or, the reference of first community The power information of the reference signal of the initial power information of signal and first community support.Wherein, initial power Information is initial power level or initial gain value, the power information bag of the reference signal that first community is supported Include at least one power grade of reference signal, or at least one performance number of reference signal.Thus the cycle Corresponding power information can also include the power grade of the reference signal in this cycle with respect to initial power level Variable quantity, or, the performance number of the reference signal in this cycle is with respect to the variable quantity of initial gain value.

Because transmission power is mechanical periodicity, transmission power change information is relatively stable, Transmit-Receive Unit 1402 The transmission power change information of base station transmission can be received in several ways.

For example, Transmit-Receive Unit 1402 can receive the special control letter that second community is passed through in base station in the first moment The transmission power change information that road sends；Again for example, Transmit-Receive Unit 1402 can receive base station in the first moment The transmission power change information being sent by the broadcast channel of second community；Again for example, Transmit-Receive Unit 1402 can To receive the transmission power change letter that base station is sent by the down physical channel of second community in the first moment Breath, this down physical channel is scrambled by power radio network mark RNTI, and every TTI is by base station scheduling. Here power RNTI is cell-level RNTI, can also may be used with cell-level RNTI defined in multiplex system It is used for power information to define new cell-level RNTI, down physical channel can be physical down Control channel PDCCH or physical mixed automatic re-transmission indicating channel PHIC or, physical control lattice Formula indicates channel, can also be using new down physical channel power information.

Determining unit 1401, determines for the transmission power change information according to received by Transmit-Receive Unit 1402 Transmission power after the second moment for the reference signal of first community.

, after receiving transmission power change information, determining unit 1401 can be according to transmitting for Transmit-Receive Unit 1402 Power change patterns determine the transmission power of reference signal any instant after the second moment of first community. For example, transmission power changing pattern includes the cycle 1 for 2 milliseconds, and the cycle 2 is 3 milliseconds, and the cycle 1 is right The transmission power answered is 20dBm, and cycle 2 corresponding transmission power is 8dBm, then the 8th after the moment of coming into force In the millisecond corresponding cycle 2, after the moment of coming into force, the 8th millisecond of transmission power is 8dBm.It should be noted that Above-mentioned all simply citings, the present invention is not limited to this.

It should be noted that in the embodiment of the present invention, determining unit 1401, Transmit-Receive Unit 1402 can pass through One or more processors are realized.Interaction flow between above-mentioned each unit specifically may be referred to side shown in Fig. 8 Description in method embodiment, repeats no more here.

The output control device of the embodiment of the present invention, is getting main plot or secondary cell transmission power change letter After breath, reference signal transmission power at any one time can be determined after the moment of coming into force and without waiting for base station Notify when each transmission power changes, such that it is able to realizing fast power control and reducing signaling consumption.

The structure chart of the output control device that Figure 15 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the wireless access network control device such as base station, herein for convenience of describing, taking base station as a example illustrate, this Inventive embodiments are not limited to this.As illustrated, the network equipment 1500 of the present embodiment includes：Bus 1501, The processor 1502 being connected with bus 1501, the memorizer 1503 being connected with bus 1501, and and bus 1501 transceivers 1504 being connected.Wherein, batch processing code, memorizer 1503 are stored in memorizer 1503 Nonvolatile memory (Non-volatile Memory) can be included.Processor 1502 can be central authorities Processor (Central Processing Unit, referred to as CPU), or specific integrated circuit ASIC (Application Specific Integrated Circuit, referred to as ASIC), or be arranged to implement this One or more integrated circuits of inventive embodiments.Processor 1502 passes through bus 1501, calls memorizer The program of storage in 1503, for determining the transmission power in the second moment for the reference signal of first community, And according to determined by the transmission power in the second moment for the reference signal of first community determine the first power letter Breath, and control transceiver 1504 to pass through second community to the first power determined by terminal transmission in the first moment Information is so that terminal determines the transmitting in the second moment for the reference signal of first community according to the first power information Power, wherein, the second moment was later than k Transmission Time Interval TTI of the first moment, k be more than or equal to 0 integer.Here k can be base station and terminal is made an appointment or base station notifies the parameter of terminal.

It should be noted that processor 1502 is by calling the program code of storage in memorizer 1503 specifically real Existing technical scheme may refer to preceding method embodiment, and it is similar with technique effect that it realizes principle, in detail may be used Referring to the correlation record in above-described embodiment, will not be described here.

The structure chart of the output control device that Figure 16 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the wireless access network control device such as base station, herein for convenience of describing, taking base station as a example illustrate, this Inventive embodiments are not limited to this.As illustrated, the network equipment 1600 of the present embodiment includes：Bus 1601, The processor 1602 being connected with bus 1601, the memorizer 1603 being connected with bus 1601, and and bus 1601 transceivers 1604 being connected.Wherein, batch processing code, memorizer 1603 are stored in memorizer 1603 Nonvolatile memory (Non-volatile Memory) can be included.Processor 1502 can be central authorities Processor (Central Processing Unit, referred to as CPU), or specific integrated circuit ASIC (Application Specific Integrated Circuit, referred to as ASIC), or be arranged to implement this One or more integrated circuits of inventive embodiments.Processor 1602 passes through bus 1601, calls memorizer The program of storage in 1603, for determining the power grade in the second moment for the reference signal of first community； Control transceiver 1604 the first moment pass through first community transmission downlink physical signal so that terminal according to Downlink physical signal determines the power grade in the second moment for the reference signal of first community；Wherein, second when It is later than k Transmission Time Interval TTI of the first moment quarter, k is the integer more than or equal to 0.

It should be noted that processor 1602 is by calling the program code of storage in memorizer 1603 specifically real Existing technical scheme may refer to preceding method embodiment, and it is similar with technique effect that it realizes principle, in detail may be used Referring to the correlation record in above-described embodiment, will not be described here.

The structure chart of the output control device that Figure 17 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the wireless access network control device such as base station, herein for convenience of describing, taking base station as a example illustrate, this Inventive embodiments are not limited to this.As illustrated, the network equipment 1700 of the present embodiment includes：Bus 1701, The processor 1702 being connected with bus 1701, the memorizer 1703 being connected with bus 1701, and and bus 1701 transceivers 1704 being connected.Wherein, batch processing code, memorizer 1703 are stored in memorizer 1703 Nonvolatile memory (Non-volatile Memory) can be included.Processor 1702 can be central authorities Processor (Central Processing Unit, referred to as CPU), or specific integrated circuit ASIC (Application Specific Integrated Circuit, referred to as ASIC), or be arranged to implement this One or more integrated circuits of inventive embodiments.Processor 1702 passes through bus 1701, calls memorizer The program of storage in 1703, for determining the transmission power change in the second moment for the reference signal of first community Change information.Wherein, transmission power change information at least includes following one kind, the reference signal of first community Transmission power changing pattern and the second moment；Transceiver 1704 is controlled to pass through second community to end in the first moment Transmission power change information determined by the transmission of end.

It should be noted that processor 1702 is by calling the program code of storage in memorizer 1703 specifically real Existing technical scheme may refer to preceding method embodiment, and it is similar with technique effect that it realizes principle, in detail may be used Referring to the correlation record in above-described embodiment, will not be described here.

The structure chart of the output control device that Figure 18 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the terminal, the embodiment of the present invention is not limited to this.As illustrated, the network equipment 1800 of the present embodiment wraps Include：Bus 1801, the processor 1802 being connected with bus 1801, the memorizer 1803 being connected with bus 1801, And the transceiver 1804 being connected with bus 1801.Wherein, store batch processing code in memorizer 1803, Memorizer 1803 can include nonvolatile memory (Non-volatile Memory).Processor 1802 can Being a central processing unit (Central Processing Unit, referred to as CPU) or specific integrated Circuit ASIC (Application Specific Integrated Circuit, referred to as ASIC), or joined It is set to the one or more integrated circuits implementing the embodiment of the present invention.Processor 1802 passes through bus 1801, adjusts With the program of storage in memorizer 1803, lead in the first moment for controlling transceiver 1804 to receive base station Cross the first power information of second community transmission；First community is determined according to the first received power information Reference signal the second moment transmission power.

It should be noted that processor 1802 is by calling the program code of storage in memorizer 1803 specifically real Existing technical scheme may refer to preceding method embodiment, and it is similar with technique effect that it realizes principle, in detail may be used Referring to the correlation record in above-described embodiment, will not be described here.

The structure chart of the output control device that Figure 19 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the terminal, the embodiment of the present invention is not limited to this.As illustrated, the network equipment 1900 of the present embodiment wraps Include：Bus 1901, the processor 1902 being connected with bus 1901, the memorizer 1903 being connected with bus 1901, And the transceiver 1604 being connected with bus 1901.Wherein, store batch processing code in memorizer 1903, Memorizer 1903 can include nonvolatile memory (Non-volatile Memory).Processor 1902 can Being a central processing unit (Central Processing Unit, referred to as CPU) or specific integrated Circuit ASIC (Application Specific Integrated Circuit, referred to as ASIC), or joined It is set to the one or more integrated circuits implementing the embodiment of the present invention.Processor 1902 passes through bus 1901, adjusts With the program of storage in memorizer 1903, lead in the first moment for controlling transceiver 1904 to receive base station Cross the downlink physical signal of first community transmission；Downlink physical signal according to receiving determines first community Reference signal is in the emitting power grade in the second moment.

It should be noted that processor 1902 is by calling the program code of storage in memorizer 1903 specifically real Existing technical scheme may refer to preceding method embodiment, and it is similar with technique effect that it realizes principle, in detail may be used Referring to the correlation record in above-described embodiment, will not be described here.

The structure chart of the output control device that Figure 20 provides for another embodiment of the present invention, the embodiment of the present invention carries For output control device can realize said method embodiment of the present invention.This output control device can be disposed In the terminal, the embodiment of the present invention is not limited to this.As illustrated, the network equipment 2000 of the present embodiment wraps Include：Bus 2001, the processor 2002 being connected with bus 2001, the memorizer 2003 being connected with bus 2001, And the transceiver 2004 being connected with bus 2001.Wherein, store batch processing code in memorizer 2003, Memorizer 2003 can include nonvolatile memory (Non-volatile Memory).Processor 2002 can Being a central processing unit (Central Processing Unit, referred to as CPU) or specific integrated Circuit ASIC (Application Specific Integrated Circuit, referred to as ASIC), or joined It is set to the one or more integrated circuits implementing the embodiment of the present invention.Processor 2002 passes through bus 2001, adjusts With the program of storage in memorizer 2003, lead in the first moment for controlling transceiver 2004 to receive base station Cross the transmission power change information of second community transmission；Wherein, transmission power change information at least include following One kind, the transmission power changing pattern of the reference signal of first community and the second moment；According to sending out of receiving Penetrate changed power information and determine the reference signal of the first community transmission power after the second moment.

It should be noted that processor 2002 is by calling the program code of storage in memorizer 2003 specifically real Existing technical scheme may refer to preceding method embodiment, and it is similar with technique effect that it realizes principle, in detail may be used Referring to the correlation record in above-described embodiment, will not be described here.

The networking schematic diagram of the power control system 2100 that Figure 21 provides for another embodiment of the present invention, such as schemes Shown in 21, this system 2100 includes：At least one terminal 2101 and base station 2102, wherein：

Terminal 2101 can include the arbitrary shown output control device of Figure 12-14 and Figure 18-20, due to In embodiment shown in Figure 12-14 and Figure 18-20, it is explained, it realizes principle and technology Effect is similar to, and may refer to the related record in above-described embodiment in detail, will not be described here.

Base station 2102 can include the arbitrary shown output control device of Fig. 9-11 and Figure 15-17, due to In embodiment shown in Fig. 9-11 and Figure 15-17, it is explained, it realizes principle and technology effect Fruit seemingly, may refer to the related record in above-described embodiment in detail, will not be described here.

It should be understood that disclosed system in several embodiments provided herein, apparatus and method, Can realize by another way.For example, device embodiment described above is only schematically, For example, the division of described unit, only a kind of division of logic function, actual can have when realizing other Dividing mode, for example multiple units or assembly can in conjunction with or be desirably integrated into another system, or some Feature can be ignored, or does not execute.Another, shown or discussed coupling each other or direct coupling Close or communication connection can be by some interfaces, the INDIRECT COUPLING of device or unit or communication connection, permissible It is electrical, mechanical or other forms.

The described unit illustrating as separating component can be or may not be physically separate, as list The part of unit's display can be or may not be physical location, you can with positioned at a place, or Can be distributed on multiple NEs.Some or all of list therein can be selected according to the actual needs Unit is realizing the purpose of this embodiment scheme.

In addition, can be integrated in a processing unit in each functional unit in each embodiment of the present invention, Can be that unit is individually physically present it is also possible to two or more units are integrated in a unit.

Through the above description of the embodiments, those skilled in the art can be understood that the present invention Can be realized with hardware, or firmware is realized, or combinations thereof mode is realizing.When implemented in software, Above-mentioned functions can be stored in computer-readable medium or as on computer-readable medium or many Individual instruction or code are transmitted.Computer-readable medium includes computer-readable storage medium and communication media, its Middle communication media includes being easy to transmitting any medium of computer program from a place to another place.Deposit Storage media can be any usable medium that computer can access.As example but be not limited to：Computer can Read medium can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage, magnetic disk storage medium or Other magnetic storage apparatus of person or can be used in carrying or store the expectation with instruction or data structure form Program code and can be by any other medium of computer access.In addition.Any connection can be suitable Become computer-readable medium.For example, if software be using coaxial cable, optical fiber cable, twisted-pair feeder, The wireless technology of Digital Subscriber Line (DSL) or such as infrared ray, radio and microwave etc is from website, clothes Business device or the transmission of other remote sources, then coaxial cable, optical fiber cable, twisted-pair feeder, DSL or such as The wireless technology of infrared ray, wireless and microwave etc include affiliated medium fixing in.As the present invention makes , disk (Disk) and dish (disc) include compression laser disc (CD), laser disc, laser disc, digital universal Laser disc (DVD), floppy disk and Blu-ray Disc, the replicate data of the usual magnetic of which disk, and dish then with laser Lai Optical replicate data.Above combination above should also be as including within the protection domain of computer-readable medium.

In a word, the foregoing is only the preferred embodiment of technical solution of the present invention, be not intended to limit this The protection domain of invention.All any modifications within the spirit and principles in the present invention, made, equivalent, Improve etc., should be included within the scope of the present invention.

Claims

1. a kind of method of Power Control is it is characterised in that methods described includes：

2. method according to claim 1 is it is characterised in that before methods described, also include：

Described base station sends system message by the broadcast channel of described second community, carries in described system message The initial power information of the reference signal of described first community, or, the reference signal of described first community The power information of the reference signal of initial power information and the support of described first community；Wherein, described initial power Rate information is initial power level or initial gain value, the work(of the reference signal of the support of described first community Rate information includes at least one power grade of reference signal, or, at least one performance number of reference signal.

3. method according to claim 2 it is characterised in that described first power information include following At least one：The reference signal of described first community in the power grade in described second moment, or, described The reference signal of first community in the performance number in described second moment, or, the reference of described first community letter Number described second moment the power grade with respect to described first moment for the power grade variable quantity, or, The reference signal of described first community described second moment performance number with respect to described first moment power The variable quantity of value, or, the reference signal of described first community described second moment power grade relatively In the variable quantity of described initial power level, or, the initial gain value of the reference signal of described first community Variable quantity with respect to described initial gain value.

4. method according to claim 1 it is characterised in that described first power information include following At least one：The reference signal of described first community in the power grade in described second moment, or, described The reference signal of first community in the performance number in described second moment, or, the reference of described first community letter Number described second moment the power grade with respect to described first moment for the power grade variable quantity, or, The reference signal of described first community described second moment performance number with respect to described first moment power The variable quantity of value.

5. the method according to any one of claim 1-4 is it is characterised in that described down physical channel Including：Physical downlink control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, or Person, Physical Control Format Indicator Channel.

6. the method according to any one of claim 1-5 is it is characterised in that described first community and institute Stating second community is same cell.

7. the method according to any one of claim 1-5 is it is characterised in that supplemented by described first community Cell, described second community is main plot；Described first power information also includes the cell of described first community Mark.

8. a kind of method of Power Control is it is characterised in that methods described includes：

Described base station the first moment by described first community send downlink physical signal so that terminal according to Described downlink physical signal determines the power grade in the second moment for the reference signal of described first community；

9. method according to claim 8 is it is characterised in that the downlink physical of described second community is believed Number include power descrambling reference signals；

Described base station sends described power descrambling reference signals in described first moment by described first community, its In, described first moment includes the time-domain position sending for cell special reference.

10. method according to claim 8 is it is characterised in that the downlink physical of described second community is believed Number include power notification sequence；

Described base station sends described power notification sequence in the first moment by described first community, wherein, described First moment included the time-domain position sending for master sync signal, or, send for auxiliary synchronous signals Time-domain position, or, described base station detects the time-domain position of the idle channel exempting from licensed spectrum.

A kind of 11. methods of Power Control are it is characterised in that methods described includes：

12. methods according to claim 11 are it is characterised in that the reference signal of described first community Transmission power changing pattern include at least one cycle and this cycle corresponding power information.

13. methods according to claim 12 are it is characterised in that before methods described, also include：

Described base station sends system message by the broadcast channel of described second community, carries in described system message The initial power information of the reference signal of described first community, or, the reference signal of described first community The power information of the reference signal of initial power information and the support of described first community；Described initial power information For initial power level or initial gain value, the power information of the reference signal of the support of described first community Including at least one power grade of reference signal, or, at least one performance number of reference signal.

14. methods according to claim 13 are it is characterised in that corresponding power information of described cycle Including：The power grade in described cycle, or, the performance number in described cycle, or, the work(in described cycle The variable quantity of the power grade with respect to the previous cycle in described cycle for the rate grade, or.The work(in described cycle The variable quantity of the performance number with respect to the previous cycle in described cycle for the rate value, or, the power in described cycle etc. Level is with respect to the variable quantity of described initial power level, or the performance number in described cycle is initial with respect to described The variable quantity of performance number.

15. methods according to claim 12 are it is characterised in that corresponding power information of described cycle Including：The power grade in described cycle, or, the performance number in described cycle.

16. methods according to any one of claim 11-15 are it is characterised in that described base station is first Moment passes through second community and sends described transmission power change information to terminal, including：

17. methods according to claim 16 are it is characterised in that described down physical channel includes： Physical downlink control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, or, thing Reason control format instruction channel.

18. methods according to any one of claim 11-17 it is characterised in that described first community with Described second community is same cell.

19. methods according to any one of claim 11-17 are it is characterised in that described first community is Secondary cell, described second community is main plot；Described transmission power change information also includes described first community Cell ID.

A kind of 20. methods of Power Control are it is characterised in that methods described includes：

21. methods according to claim 20 are it is characterised in that before methods described, also include：

Described terminal receives the system message that described base station is sent by the broadcast channel of described second community, described The initial power information of the reference signal of described first community is carried in system message, or, described first is little The power information of the reference signal of the initial power information of the reference signal in area and the support of described first community；Its In, described initial power information is initial power level or initial gain value, the support of described first community The power information of reference signal include at least one power grade of reference signal, or, reference signal At least one performance number.

22. methods according to claim 21 it is characterised in that described first power information include with Lower at least one：The reference signal of described first community in the power grade in described second moment, or, institute State the performance number in described second moment for the reference signal of first community, or, the reference of described first community The variable quantity of the power grade with respect to described first moment for the power grade in described second moment for the signal, or Person, the reference signal of described first community described second moment performance number with respect to described first moment The variable quantity of performance number, or, the reference signal of described first community is in the power grade in described second moment With respect to the variable quantity of described initial power level, or, the initial power of the reference signal of described first community Rate value is with respect to the variable quantity of described initial gain value.

23. methods according to claim 20 it is characterised in that described first power information include with Lower at least one：The reference signal of described first community in the power grade in described second moment, or, institute State the performance number in described second moment for the reference signal of first community, or, the reference of described first community The variable quantity of the power grade with respect to described first moment for the power grade in described second moment for the signal, or Person, the reference signal of described first community described second moment performance number with respect to described first moment The variable quantity of performance number.

24. methods according to any one of claim 20-23 are it is characterised in that described downlink physical is believed Road includes：Including physical downlink control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, Or, Physical Control Format Indicator Channel.

25. methods according to any one of claim 20-24 it is characterised in that described first community with Described second community is same cell.

26. methods according to any one of claim 20-24 are it is characterised in that described first community is Secondary cell, described second community is main plot；Described first power information also includes the little of described first community Area identifies.

A kind of 27. methods of Power Control are it is characterised in that methods described includes：

28. methods according to claim 27 are it is characterised in that the downlink physical of described second community Signal includes power descrambling reference signals, and described first moment is included for cell special reference transmission Time-domain position；

29. methods according to claim 27 are it is characterised in that the downlink physical of described second community Signal includes power notification sequence；Described first moment includes the time-domain position sending for master sync signal, Or, the time-domain position sending for auxiliary synchronous signals, or, described base station detects exempts from licensed spectrum The time-domain position of idle channel；

A kind of 30. methods of Power Control are it is characterised in that methods described includes：

31. methods according to claim 30 are it is characterised in that the reference signal of described first community Transmission power changing pattern include at least one cycle and this cycle corresponding power information.

32. methods according to claim 31 are it is characterised in that before methods described, also include：

Described terminal receives the system message that described base station is sent by the broadcast channel of described second community, described The initial power information of the reference signal of described first community is carried in system message, or, described first is little The power information of the reference signal of the initial power information of the reference signal in area and the support of described first community；Institute Stating initial power information is initial power level or initial gain value, the reference of the support of described first community The power information of signal includes at least one power grade of reference signal, or, at least the one of reference signal Individual performance number.

33. methods according to claim 32 are it is characterised in that corresponding power information of described cycle Including：The power grade in described cycle, or, the performance number in described cycle, or, the work(in described cycle The variable quantity of the power grade with respect to the previous cycle in described cycle for the rate grade, or.The work(in described cycle The variable quantity of the performance number with respect to the previous cycle in described cycle for the rate value, or, the power in described cycle etc. Level is with respect to the variable quantity of described initial power level, or the performance number in described cycle is initial with respect to described The variable quantity of performance number.

34. methods according to claim 31 are it is characterised in that corresponding power information of described cycle Including：The power grade in described cycle, or, the performance number in described cycle.

35. methods according to any one of claim 30-34 are it is characterised in that described terminal receives base Stand in the transmission power change information that the first moment sent by second community, including：

36. methods according to claim 35 are it is characterised in that described down physical channel includes： Physical downlink control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, or, thing Reason control format instruction channel.

37. methods according to any one of claim 30-36 it is characterised in that described first community with Described second community is same cell.

38. methods according to any one of claim 30-36 are it is characterised in that described first community is Secondary cell, described second community is main plot；Described transmission power change information also includes described first community Cell ID.

A kind of 39. devices of Power Control are it is characterised in that described device includes：First determining unit, the Two determining units and Transmit-Receive Unit；Wherein,

40. devices according to claim 39 are it is characterised in that described Transmit-Receive Unit is additionally operable to pass through The broadcast channel of described second community sends system message, carries described first community in described system message The initial power information of reference signal, or, the initial power information of the reference signal of described first community and The power information of the reference signal that described first community is supported；Wherein, described initial power information is initial power Rate grade or initial gain value, the power information of the reference signal of the support of described first community includes reference At least one power grade of signal, or, at least one performance number of reference signal.

41. devices according to claim 40 it is characterised in that described first power information include with Lower at least one：The reference signal of described first community in the power grade in described second moment, or, institute State the performance number in described second moment for the reference signal of first community, or, the reference of described first community The variable quantity of the power grade with respect to described first moment for the power grade in described second moment for the signal, or Person, the reference signal of described first community described second moment performance number with respect to described first moment The variable quantity of performance number, or, the reference signal of described first community is in the power grade in described second moment With respect to the variable quantity of described initial power level, or, the initial power of the reference signal of described first community Rate value is with respect to the variable quantity of described initial gain value.

42. devices according to claim 39 it is characterised in that described first power information include with Lower at least one：The reference signal of described first community in the power grade in described second moment, or, institute State the performance number in described second moment for the reference signal of first community, or, the reference of described first community The variable quantity of the power grade with respect to described first moment for the power grade in described second moment for the signal, or Person, the reference signal of described first community described second moment performance number with respect to described first moment The variable quantity of performance number.

43. devices according to any one of claim 39-42 are it is characterised in that described downlink physical is believed Road includes：Physical downlink control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, Or, Physical Control Format Indicator Channel.

44. devices according to any one of claim 39-43 it is characterised in that described first community with Described second community is same cell.

45. devices according to any one of claim 39-43 are it is characterised in that described first community is Secondary cell, described second community is main plot；Described first power information also includes the little of described first community Area identifies.

46. devices according to any one of claim 44-45 are it is characterised in that described device is deployed in Base station.

A kind of 47. devices of Power Control are it is characterised in that described device includes：Determining unit and transmitting-receiving are single Unit；Wherein,

Described Transmit-Receive Unit is used for sending downlink physical signal in the first moment by described first community, so that Terminal determines the reference signal of the described first community power etc. in the second moment according to described downlink physical signal Level；

48. devices according to claim 47 are it is characterised in that the downlink physical of described second community Signal includes power descrambling reference signals；

49. devices according to claim 47 are it is characterised in that the downlink physical of described second community Signal includes power notification sequence；

50. devices according to any one of claim 47-49 are it is characterised in that described device is deployed in Base station.

A kind of 51. devices of Power Control are it is characterised in that described device includes：Determining unit and transmitting-receiving are single Unit；Wherein,

52. devices according to claim 51 are it is characterised in that the reference signal of described first community Transmission power changing pattern include at least one cycle and this cycle corresponding power information.

53. devices according to claim 52 are it is characterised in that described Transmit-Receive Unit is additionally operable to pass through The broadcast channel of described second community sends system message, carries described first community in described system message The initial power information of reference signal, or, the initial power information of the reference signal of described first community and The power information of the reference signal that described first community is supported；Described initial power information is initial power level Or initial gain value, the power information of the reference signal of the support of described first community includes reference signal At least one power grade, or, at least one performance number of reference signal.

54. devices according to claim 53 are it is characterised in that corresponding power information of described cycle Including：The power grade in described cycle, or, the performance number in described cycle, or, the work(in described cycle The variable quantity of the power grade with respect to the previous cycle in described cycle for the rate grade, or.The work(in described cycle The variable quantity of the performance number with respect to the previous cycle in described cycle for the rate value, or, the power in described cycle etc. Level is with respect to the variable quantity of described initial power level, or the performance number in described cycle is initial with respect to described The variable quantity of performance number.

55. devices according to claim 52 are it is characterised in that corresponding power information of described cycle Including：The power grade in described cycle, or, the performance number in described cycle.

56. devices according to any one of claim 51-55 are it is characterised in that described Transmit-Receive Unit is used Send described transmission power change information in passing through second community in the first moment to terminal, including：

57. devices according to claim 56 are it is characterised in that described down physical channel includes： Physical downlink control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, or, thing Reason control format instruction channel.

58. devices according to any one of claim 51-57 it is characterised in that described first community with Described second community is same cell.

59. devices according to any one of claim 51-57 are it is characterised in that described first community is Secondary cell, described second community is main plot；Described transmission power change information also includes described first community Cell ID.

60. devices according to any one of claim 51-59 are it is characterised in that described device is deployed in Base station.

A kind of 61. devices of Power Control are it is characterised in that described device includes：Determining unit and transmitting-receiving are single Unit；Wherein,

62. devices according to claim 61 are it is characterised in that described Transmit-Receive Unit is additionally operable to receive The system message that described base station is sent by the broadcast channel of described second community, carries in described system message The initial power information of the reference signal of described first community, or, the reference signal of described first community The power information of the reference signal of initial power information and the support of described first community；Wherein, described initial power Rate information is initial power level or initial gain value, the work(of the reference signal of the support of described first community Rate information includes at least one power grade of reference signal, or, at least one performance number of reference signal.

63. devices according to claim 62 it is characterised in that described first power information include with Lower at least one：The reference signal of described first community in the power grade in described second moment, or, institute State the performance number in described second moment for the reference signal of first community, or, the reference of described first community The variable quantity of the power grade with respect to described first moment for the power grade in described second moment for the signal, or Person, the reference signal of described first community described second moment performance number with respect to described first moment The variable quantity of performance number, or, the reference signal of described first community is in the power grade in described second moment With respect to the variable quantity of described initial power level, or, the initial power of the reference signal of described first community Rate value is with respect to the variable quantity of described initial gain value.

64. devices according to claim 61 it is characterised in that described first power information include with Lower at least one：The reference signal of described first community in the power grade in described second moment, or, institute State the performance number in described second moment for the reference signal of first community, or, the reference of described first community The variable quantity of the power grade with respect to described first moment for the power grade in described second moment for the signal, or Person, the reference signal of described first community described second moment performance number with respect to described first moment The variable quantity of performance number.

65. devices according to any one of claim 61-64 are it is characterised in that described downlink physical is believed Road includes：Including physical downlink control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, Or, Physical Control Format Indicator Channel.

66. devices according to any one of claim 61-65 it is characterised in that described first community with Described second community is same cell.

67. devices according to any one of claim 61-65 are it is characterised in that described first community is Secondary cell, described second community is main plot；Described first power information also includes the little of described first community Area identifies.

68. devices according to any one of claim 61-67 are it is characterised in that described device is deployed in Terminal.

A kind of 69. devices of Power Control are it is characterised in that described device includes：Determining unit and transmitting-receiving are single Unit；Wherein,

Described Transmit-Receive Unit is used for receiving the downlink physical signal that base station is sent by first community in the first moment；

70. devices according to claim 69 are it is characterised in that the downlink physical of described second community Signal includes power descrambling reference signals, and described first moment is included for cell special reference transmission Time-domain position；

71. devices according to claim 69 are it is characterised in that the downlink physical of described second community Signal includes power notification sequence；Described first moment includes the time-domain position sending for master sync signal, Or, the time-domain position sending for auxiliary synchronous signals, or, described base station detects exempts from licensed spectrum The time-domain position of idle channel；

72. devices according to any one of claim 69-71 are it is characterised in that described device is deployed in Terminal.

A kind of 73. devices of Power Control are it is characterised in that described device includes：Determining unit and transmitting-receiving are single Unit；Wherein,

74. devices according to claim 73 are it is characterised in that the reference signal of described first community Transmission power changing pattern include at least one cycle and this cycle corresponding power information.

75. devices according to claim 74 are it is characterised in that described Transmit-Receive Unit is additionally operable to receive The system message that described base station is sent by the broadcast channel of described second community, carries in described system message The initial power information of the reference signal of described first community, or, the reference signal of described first community The power information of the reference signal of initial power information and the support of described first community；Described initial power information For initial power level or initial gain value, the power information of the reference signal of the support of described first community Including at least one power grade of reference signal, or, at least one performance number of reference signal.

76. devices according to claim 75 are it is characterised in that corresponding power information of described cycle Including：The power grade in described cycle, or, the performance number in described cycle, or, the work(in described cycle The variable quantity of the power grade with respect to the previous cycle in described cycle for the rate grade, or.The work(in described cycle The variable quantity of the performance number with respect to the previous cycle in described cycle for the rate value, or, the power in described cycle etc. Level is with respect to the variable quantity of described initial power level, or the performance number in described cycle is initial with respect to described The variable quantity of performance number.

77. devices according to claim 74 are it is characterised in that corresponding power information of described cycle Including：The power grade in described cycle, or, the performance number in described cycle.

78. devices according to any one of claim 73-77 are it is characterised in that described Transmit-Receive Unit is used The transmission power change information being sent by second community in the first moment in reception base station, including：

79. devices according to claim 78 are it is characterised in that described down physical channel includes： Physical downlink control channel PDCCH, or, physical mixed automatic re-transmission indicating channel PHICH, or, thing Reason control format instruction channel.

80. devices according to any one of claim 73-79 it is characterised in that described first community with Described second community is same cell.

81. devices according to any one of claim 73-79 are it is characterised in that described first community is Secondary cell, described second community is main plot；Described transmission power change information also includes described first community Cell ID.

82. according to Claim 8 the device described in any one of 0-81 it is characterised in that described device is deployed in Terminal.

A kind of 83. systems of Power Control are it is characterised in that described system includes terminal and base station；Wherein, Described terminal includes the device as described in any one of claim 68,72 or 82, described base station include as Device described in any one of claim 46,50 or 60.