CN104429123B

CN104429123B - A kind of notification method and device of descending power allocation of parameters

Info

Publication number: CN104429123B
Application number: CN201380001455.9A
Authority: CN
Inventors: 任晓涛; 周永行; 薛丽霞; 孙静原
Original assignee: Huawei Technologies Co Ltd
Current assignee: Beijing Jingshi Intellectual Property Management Co ltd
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2018-10-30
Anticipated expiration: 2033-06-14
Also published as: CN109275182B; CN109275182A; CN109348530B; CN109151971A; CN109151971B; CN109348530A; WO2014198067A1; CN104429123A

Abstract

The present invention discloses a kind of notification method and device of descending power allocation of parameters, is related to field of communication technology, can reduce the interference of minizone reference signal, to improve the spectrum efficiency of system.The present invention to terminal by sending the specific descending power allocation of parameters of frequency band, so that the terminal obtains channel state information according to the specific descending power allocation of parameters of the frequency band, the specific descending power allocation of parameters of frequency band includes N number of parameter, N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；Receive the channel state information that the terminal is sent.Scheme provided in an embodiment of the present invention is adapted for using when the notice of descending power allocation of parameters.

Description

A kind of notification method and device of descending power allocation of parameters

Technical field

The present invention relates to field of communication technology more particularly to a kind of notification methods and device of descending power allocation of parameters.

Background technology

In existing LTE system, base station to terminal sending reference signal by measuring channel status, wherein reference signal Including public reference signal（Common Reference Signal, CRS）And channel state information reference signals（Channel State Information Reference Signal, CSI-RS）.Terminal declines according to the wireless channel that passes through being an actually-received Either CSI-RS is compared CRS after subtracting with original CRS or CSI-RS, to obtain channel state information.

However, when base station issues CRS either CSI-RS to terminal since CRS or CSI-RS is in whole system bandwidth In transmission power be constant, i.e., for existing Whole frequency band only there are one descending power allocation of parameters, CRS or CSI-RS Transmission power will not change with the variation of frequency band, therefore may result in go out between the CRS or CSI-RS between cell The interference of existing stronger minizone reference signal, thereby reduces the spectrum efficiency of system.

Invention content

The embodiment of the present invention provides a kind of notification method and device of descending power allocation of parameters, can reduce minizone The interference of reference signal, to improve the spectrum efficiency of system.

In a first aspect, the embodiment of the present invention provides a kind of notification method of descending power allocation of parameters, including：

To terminal send the specific descending power allocation of parameters of frequency band, so as to the terminal according to the frequency band it is specific under Row power distribution gain of parameter channel state information, the specific descending power allocation of parameters of frequency band includes N number of parameter, described N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Receive the channel state information that the terminal is sent.

In the first possible embodiment, with reference to first aspect,

N number of parameter is first kind parameter；

The first kind parameter is the first ratio parameter, and first ratio parameter is EPRE_PDSCHWith EPRE_CRSRatio, The EPRE_PDSCHIndicate the energy on Physical Downlink Shared Channel PDSCH resource units, the EPRE_CRSIndicate common reference letter Energy on number CRS resource units；Alternatively, the first kind parameter is the second ratio parameter, second ratio parameter is EPRE_PDSCHWith EPRE_CSI-RSRatio, the EPRE_CSI-RSIt indicates on channel state information reference signals CSI-RS resource unit Energy.

In second of possible embodiment, with reference to first aspect in the first possible embodiment, N number of ginseng Number includes the first kind parameter and the second class parameter；

The second class parameter is that the first kind parameter in first band is joined with the first kind in second band Several ratio；Alternatively, the second class parameter be first band on first ratio parameter with it is described in second band The ratio of second ratio parameter on first ratio parameter or the second band；Alternatively, the second class parameter is Second ratio parameter in first band in second band first ratio parameter or the second band on Second ratio parameter ratio；Alternatively, the third class parameter in first band the first kind parameter and institute State the ratio of first ratio parameter or second ratio parameter in second band；

The first band and any two frequency bands that the second band is in N number of different frequency band.

In the third possible embodiment, with reference to first aspect or with reference to first aspect in second of possible reality Mode is applied, any two frequency bands partly overlap on frequency domain or are not overlapped in N number of frequency band.

In the 4th kind of possible embodiment, with reference to first aspect or with reference to first aspect in the third possible reality Mode is applied,

Each frequency band occupies fractional bandwidth or the part of carrier wave in Base Transmitter reference signal in N number of frequency band Physical Resource Block；Alternatively,

Each frequency band occupies whole bandwidth of carrier wave in Base Transmitter reference signal in N number of frequency band；

The reference signal is CRS or CSI-RS.

In the 5th kind of possible embodiment, with reference to first aspect in any possible embodiment, it is described to end End sends the specific descending power allocation of parameters of frequency band, including：

Radio resource control RRC signaling is sent to terminal, the RRC signaling includes the specific downlink of the frequency band Power distribution parameter.

In the 6th kind of possible embodiment, with reference to first aspect in any possible embodiment, it is described to After terminal sends the specific descending power allocation of parameters of frequency band, the channel state information for receiving the terminal and sending Before, further include：

Reference signal is sent to the terminal, wherein sent out on each frequency band in N number of frequency band on N number of frequency band The transmission power for the reference signal sent corresponds to the specific descending power allocation of parameters of the frequency band of each frequency band, The reference signal includes CRS or CSI-RS.

Second aspect, the embodiment of the present invention provide a kind of notification method of descending power allocation of parameters, including：

Receive the specific descending power allocation of parameters of frequency band that base station is sent, the specific descending power distribution ginseng of frequency band Number includes N number of parameter, and N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Channel state information is obtained according to the specific descending power allocation of parameters of the frequency band；

The channel state information is sent to the base station.

In the first possible embodiment, in conjunction with second aspect,

N number of parameter is first kind parameter；

In second of possible embodiment, in conjunction with the possible embodiment of the first in second aspect,

N number of parameter includes the first kind parameter and the second class parameter；

In the third possible embodiment, in conjunction with the possible embodiment of the first in second aspect, connect described After receiving the specific descending power allocation of parameters of at least two frequency bands that base station is sent, further include：

The reference signal that the base station is sent is received on N number of frequency band, the reference signal includes common reference letter Number CRS or channel state information reference signals CSI-RS；

Initial channel status information is obtained according to the reference signal；

It is described that channel state information is obtained according to the descending power allocation of parameters, including：

According to first ratio parameter or second ratio parameter, the initial channel status information is adjusted, is obtained Channel state information after must adjusting.

In the 4th kind of possible embodiment, in conjunction with second in second aspect possible embodiment, connect described After receiving the specific descending power allocation of parameters of frequency band that base station is sent, further include：

It is calculated according to the second class parameter and obtains first ratio parameter or second ratio parameter；

In the 5th kind of possible embodiment, in conjunction with second aspect or second of possible reality in second aspect is combined Mode is applied,

Any two frequency band partly overlaps on frequency domain or is not overlapped in N number of frequency band.

In the 6th kind of possible embodiment, in conjunction with the 5th kind of possible embodiment in second aspect,

In N number of frequency band each frequency band occupied in the Base Transmitter reference signal carrier wave fractional bandwidth or Part physical resource block；Alternatively,

Each frequency band occupies whole bandwidth of carrier wave in the Base Transmitter reference signal in N number of frequency band；

The reference signal is CRS or CSI-RS.

In the 7th kind of possible embodiment, in conjunction with any possible embodiment, the reception in second aspect The specific descending power allocation of parameters of frequency band that base station is sent, including：

The radio resource control RRC signaling that base station is sent is received, the RRC signaling includes that the frequency band is specific Descending power allocation of parameters.

The third aspect, the embodiment of the present invention provide a kind of notice device of descending power allocation of parameters, including：

Transmission unit, for sending the specific descending power allocation of parameters of frequency band to terminal, so that the terminal is according to institute It states the specific descending power allocation of parameters of frequency band and obtains channel state information, the specific descending power allocation of parameters packet of frequency band N number of parameter is included, N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Receiving unit, the channel state information sent for receiving the terminal.

In the first possible embodiment, in conjunction with the third aspect,

N number of parameter in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent is first Class parameter；

In second of possible embodiment, in conjunction with the possible embodiment of the first in the third aspect, the transmission N number of parameter in the specific descending power allocation of parameters of the frequency band that unit is sent includes the first kind parameter and the Two class parameters；

In the third possible embodiment, in conjunction with the third aspect or second of possible reality in the third aspect is combined Mode is applied, wantonly two in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent A frequency band partly overlaps on frequency domain or is not overlapped.

In the 4th kind of possible embodiment, in conjunction with the third aspect or the third possible reality in the third aspect is combined Mode is applied,

It is each in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent A frequency band occupies the fractional bandwidth or part physical resource block of carrier wave in Base Transmitter reference signal；Alternatively,

It is each in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent A frequency band occupies whole bandwidth of carrier wave in Base Transmitter reference signal；

The reference signal is CRS or CSI-RS.

In the 5th kind of possible embodiment, in conjunction with any possible embodiment, the transmission in the third aspect Unit is used for：

In the 6th kind of possible embodiment, in conjunction with any possible embodiment, the transmission in the third aspect Unit is additionally operable to：

Fourth aspect, the embodiment of the present invention provide a kind of base station, including：

Memory, for store include program routine information；

Processor, for being coupled with memory, transmitters and receivers, the execution for controlling described program routine；

Transmitter, for sending the specific descending power allocation of parameters of frequency band to terminal, so that the terminal is according to The specific descending power allocation of parameters of frequency band obtains channel state information, and the specific descending power allocation of parameters of frequency band includes N number of parameter, N number of parameter correspond to N number of frequency band respectively, and the N is greater than or equal to 2；

Receiver, the channel state information sent for receiving the terminal.

In the first possible embodiment, in conjunction with fourth aspect,

N number of parameter in the specific descending power allocation of parameters of the frequency band that the transmitter is sent is the first kind Parameter；

In second of possible embodiment, in conjunction with the possible embodiment of the first in fourth aspect, the transmission N number of parameter in the specific descending power allocation of parameters of the frequency band that device is sent includes the first kind parameter and second Class parameter；

In the third possible embodiment, in conjunction with fourth aspect or second of possible reality in fourth aspect is combined Mode is applied,

Any two in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmitter is sent Frequency band partly overlaps on frequency domain or is not overlapped.

In the 4th kind of possible embodiment, in conjunction with fourth aspect or the third possible reality in fourth aspect is combined Mode is applied,

Each in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmitter is sent Frequency band occupies the fractional bandwidth or part physical resource block of carrier wave in Base Transmitter reference signal；Alternatively,

Each in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmitter is sent Frequency band occupies whole bandwidth of carrier wave in Base Transmitter reference signal；

The reference signal is CRS or CSI-RS.

In the 5th kind of possible embodiment, in conjunction with any possible embodiment, the transmission in fourth aspect Device is used for：

In the 6th kind of possible embodiment, in conjunction with any possible embodiment in fourth aspect, the transmission Device is additionally operable to：

5th aspect, the embodiment of the present invention provide a kind of notice device of descending power allocation of parameters, including：

Receiving unit, the specific descending power allocation of parameters of frequency band for receiving base station transmission, the frequency band are specific Descending power allocation of parameters includes N number of parameter, and N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Obtaining unit, the specific descending power allocation of parameters of the frequency band for being received according to receiving unit obtain channel Status information；

Transmission unit, the channel state information for obtaining obtaining unit are sent to the base station.

In the first possible embodiment, in terms of the 5th,

N number of parameter in the specific descending power allocation of parameters of the frequency band that the receiving unit receives is first Class parameter；

In second of possible embodiment, in conjunction with the first possible embodiment in the 5th aspect, the reception N number of parameter in the specific descending power allocation of parameters of the frequency band that unit receives includes the first kind parameter and the Two class parameters；

In the third possible embodiment, in conjunction with the 5th aspect in second of possible embodiment,

The receiving unit is additionally operable to receive the reference signal that the base station is sent on N number of frequency band, the reference Signal includes public reference signal CRS or channel state information reference signals CSI-RS；

The obtaining unit is additionally operable to obtain initial channel status information according to the reference signal；

The obtaining unit, for according to first ratio parameter or second ratio parameter, adjusting described first Beginning channel state information, the channel state information after being adjusted.

In the 4th kind of possible embodiment, in conjunction with the 5th aspect in the third possible embodiment, described first Module is obtained, is used for：

The obtaining unit, including：

First obtains module, and first ratio parameter or described the are obtained for being calculated according to the second class parameter Two ratio parameters；

Second obtains module, for according to first ratio parameter or second ratio parameter, adjusting described first Beginning channel state information, the channel state information after being adjusted.

In the 5th kind of possible embodiment, in conjunction with the 5th aspect or second of possible reality in the 5th aspect is combined Mode is applied,

Wantonly two in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiving unit receives A frequency band partly overlaps on frequency domain or is not overlapped.

In the 6th kind of possible embodiment, in conjunction with the 5th aspect or the 5th kind of possible reality in the 5th aspect is combined Mode is applied,

It is each in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiving unit receives A frequency band occupies the fractional bandwidth or part physical resource block of carrier wave in the Base Transmitter reference signal；Alternatively,

It is each in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiving unit receives A frequency band occupies whole bandwidth of carrier wave in the Base Transmitter reference signal；

The reference signal is CRS or CSI-RS.

In the 7th kind of possible embodiment, in conjunction with any possible embodiment in the 5th aspect, the reception Unit is used for：

6th aspect, the embodiment of the present invention provide a kind of terminal, including：

Receiver, the specific descending power allocation of parameters of frequency band for receiving base station transmission, under the frequency band is specific Row power distribution parameter includes N number of parameter, and N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Memory, for store include program routine information；

Processor, for being coupled with memory, transmitters and receivers, the execution for controlling described program routine, tool Body is used for：The specific descending power allocation of parameters of the frequency band received according to receiver obtains channel state information；

Transmitter, the channel state information for obtaining processor are sent to the base station.

In the first possible embodiment, in terms of the 6th,

N number of parameter in the specific descending power allocation of parameters of the frequency band that the receiver receives is the first kind Parameter；

In second of possible embodiment, in conjunction with the 6th aspect in the first possible embodiment,

N number of parameter in the specific descending power allocation of parameters of the frequency band that the receiver receives includes first Class parameter and the second class parameter；

In the third possible embodiment, in conjunction with the 6th aspect in the first possible embodiment,

The receiver is additionally operable to receive the reference signal that the base station is sent on N number of frequency band, described with reference to letter Number include public reference signal CRS or channel state information reference signals CSI-RS；

The processor is additionally operable to obtain initial channel status information according to the reference signal；

The processor, is used for：

In the 4th kind of possible embodiment, in conjunction with second of possible embodiment in the 6th aspect, the reception Device is additionally operable to receive the reference signal that the base station is sent on N number of frequency band, and the reference signal includes common reference letter Number CRS or channel state information reference signals CSI-RS；

The processor, is used for：

In the 5th kind of possible embodiment, in conjunction with the 6th aspect or second of possible reality in the 6th aspect is combined Mode is applied,

Any two in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiver receives Frequency band partly overlaps on frequency domain or is not overlapped.

In the 6th kind of possible embodiment, in conjunction with the 6th aspect or the 5th kind of possible reality in the 6th aspect is combined Mode is applied,

Each in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiver receives Frequency band occupies the fractional bandwidth or part physical resource block of carrier wave in the Base Transmitter reference signal；Alternatively,

Each in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiver receives Frequency band occupies whole bandwidth of carrier wave in the Base Transmitter reference signal；

The reference signal is CRS or CSI-RS.

In the 7th kind of possible embodiment, received in conjunction with described in any possible embodiment in the 6th aspect Device is used for：

The embodiment of the present invention provides a kind of notification method of descending power allocation of parameters, specific by sending frequency band to terminal Descending power allocation of parameters, so that the terminal obtains channel status according to the specific descending power allocation of parameters of the frequency band Information, the specific descending power allocation of parameters of frequency band includes N number of parameter, and N number of parameter corresponds to N number of frequency band, institute respectively It states N and is greater than or equal to 2；Receive the channel state information that the terminal is sent.With in the prior art due to CRS or CSI- Transmission powers of the RS in whole system bandwidth is constant, i.e., for existing Whole frequency band, only there are one descending power distribution ginsengs The transmission power of number, CRS or CSI-RS will not change with the variation of frequency band, therefore may result in the CRS between cell Or occur the interference of stronger minizone reference signal between CSI-RS, the spectrum efficiency for thereby reducing system is compared, Different frequency bands may be implemented using different by sending the specific descending power allocation of parameters of frequency band in the embodiment of the present invention Descending power allocation of parameters, i.e., different frequency bands uses different transmission powers, can reduce the dry of minizone reference signal It disturbs, to improve the spectrum efficiency of system.

Description of the drawings

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art With obtain other attached drawings according to these attached drawings.

Fig. 1 is a kind of flow chart of the notification method of descending power allocation of parameters provided by one embodiment of the present invention；

Fig. 2 is the schematic diagram of cell in base station service range provided by one embodiment of the present invention；

Fig. 3 A are that the frequency band of A classes cell provided by one embodiment of the present invention and the transmission power relationship of reference signal are shown It is intended to；

Fig. 3 B are that the frequency band of B classes cell provided by one embodiment of the present invention and the transmission power relationship of reference signal are shown It is intended to；

Fig. 3 C are that the frequency band of C classes cell provided by one embodiment of the present invention and the transmission power relationship of reference signal are shown It is intended to；

Fig. 4 is a kind of flow chart of the notification method for descending power allocation of parameters that another embodiment of the present invention provides；

Fig. 5 is the flow of the notification method for another descending power allocation of parameters that another embodiment of the present invention provides Figure；

Fig. 6 is a kind of block diagram of the notice device for descending power allocation of parameters that another embodiment of the present invention provides；

Fig. 7 is a kind of block diagram for base station that another embodiment of the present invention provides；

Fig. 8 is a kind of block diagram of the notice device for descending power allocation of parameters that another embodiment of the present invention provides；

Fig. 9 is a kind of block diagram of the notice device for descending power allocation of parameters that another embodiment of the present invention provides；

Figure 10 is a kind of block diagram for terminal that another embodiment of the present invention provides.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.

The embodiment of the present invention provides a kind of notification method of descending power allocation of parameters, and the executive agent of this method is base It stands, as shown in Figure 1, this method includes：

Step 101, base station sends the specific descending power allocation of parameters of frequency band to terminal, so that the terminal is according to The specific descending power allocation of parameters of frequency band obtains channel state information, and the specific descending power allocation of parameters of frequency band includes N number of parameter, N number of parameter correspond to N number of frequency band respectively, and the N is greater than or equal to 2；

Optionally, terminal can be any one terminal in the service range of base station.

Optionally, different descending power allocation of parameters is corresponded from different frequency bands.N number of parameter is all first Class parameter；Alternatively, N number of parameter includes first kind parameter and the second class parameter.Optionally, it can be obtained according to the second class parameter First kind parameter is obtained, according to first kind gain of parameter channel state information, or directly according to first kind gain of parameter channel shape State information.

It should be noted that in descending power allocation of parameters except including N number of parameter in addition to, can also include other ginsengs Number, this parameter is not the specific parameter of frequency band.It should be understood that this parameter is the parameter of Whole frequency band, not because of the difference of frequency band And it is different.

For example, descending power allocation of parameters includes 2 parameters, respectively parameter 1 and parameter 2, wherein parameter 1 and parameter 2 For first kind parameter.Parameter 1 corresponds to frequency band 1, and parameter 2 corresponds to frequency band 2, and frequency band 1 is different from frequency band 2.

For example, descending power allocation of parameters includes 3 parameters, respectively parameter 1, parameter 2 and parameter 3, wherein parameter 1 It is first kind parameter with parameter 2, parameter 3 is the second class parameter.Parameter 1 corresponds to frequency band 1, and parameter 2 corresponds to frequency band 2, and parameter 3 corresponds to Frequency band 3, and frequency band 1, frequency band 2 are different from frequency band 3.Alternatively, parameter 1 is first kind parameter, parameter 2 and parameter 3 are the second class Parameter.Parameter 1 corresponds to frequency band 1, and parameter 2 corresponds to frequency band 2, and parameter 3 corresponds to frequency band 3, and frequency band 1, frequency band 2 are different from frequency band 3.

In the present embodiment, in any one cell in the service range of base station, Base Transmitter refers to over different frequency bands The transmission power of signal is different.For example, as shown in Fig. 2, the cell in the service range of base station is indicated with hexagon, each hexagon Indicate a cell, can be divided into three classes each cell cell, such as A classes cell, B classes cell and C class cells.It is optional , according to large-scale decline feature, each cell is divided into cell edge region and center of housing estate region.For example, working as big ruler Degree decline belongs to cell edge region more than the cell area of pre-determined threshold, is indicated in fig. 2 with shadow region；When large scale declines The cell area fallen less than pre-determined threshold belongs to center of housing estate region, is indicated in fig. 2 with white area.Wherein, large scale declines The signal decaying typically referred to caused by various block is fallen, distribution is regarded as lognormal, it is gradual.

Optionally, 1 transmitted reference signal of frequency band is used for cell edge region, frequency band is used for center of housing estate region 2 transmitted reference signals.And it is higher in the power for the reference signal that frequency band 1 emits, in the power for the reference signal that frequency band 2 emits Relatively low, reference signal refers to public reference signal CRS and/or channel state information reference signals CSI-RS.In addition, small for one The cell edge region of three classes cell in area can also use different frequency bands, and interference is newly breathed out to avoid the reference of minizone. A classes cell, B classes cell as shown in Figure 3B and C class cells as shown in Figure 3 C as shown in Figure 3A, the horizontal axis table of reference axis Show that frequency band, the longitudinal axis indicate the transmission power of reference signal, wherein shadow region indicates that frequency band 1, white area indicate frequency band 2.It needs It is noted that Fig. 3 A, Fig. 3 B, Fig. 3 C are only schematic diagram.

It, can be under after terminal receives the specific descending power allocation of parameters of at least two frequency bands of base station transmission Row power distribution parameter determines EPRE_PDSCHWith EPRE_CRSRatio or EPRE_PDSCHWith EPRE_CSI-RSRatio, the EPRE_DSC （Energy Per Resource Element）Indicate each Physical Downlink Shared Channel（Physical Downlink Shared Channel, PDSCH）Energy on resource unit, the EPRE_CRSIndicate the energy on each CRS resource units, The EPRE_CSI-RSIndicate the energy on each CSI-RS resource unit, and according to EPRE_PDSCHWith EPRE_CRSRatio or EPRE_PDSCHWith EPRE_CSI-RSRatio, terminal obtain channel state information.

Step 102, the base station receives the channel state information that the terminal is sent.

Base station can be by receiving channel quality instruction（Channel Quality Indicator, CQI）The information reported Obtain channel state information.

The embodiment of the present invention provides a kind of notification method of descending power allocation of parameters, as shown in figure 4, this method includes：

Step 401, terminal receives the specific descending power allocation of parameters of frequency band that base station is sent, under the frequency band is specific Row power distribution parameter includes N number of parameter, and N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

In the present embodiment, in any one cell in the service range of base station, Base Transmitter refers to over different frequency bands The transmission power of signal is different, and for details, reference can be made to the descriptions in step 101 in attached drawing 1, and this is no longer going to repeat them.

Step 402, channel state information is obtained according to the specific descending power allocation of parameters of the frequency band；

This step includes：EPRE is obtained according to the descending power allocation of parameters_PDSCHWith EPRE_CRSRatio or EPRE_PDSCHWith EPRE_CSI-RSRatio, the EPRE_PDSCIt indicates on each Physical Downlink Shared Channel PDSCH resource units Energy, the EPRE_CRSIndicate the energy on each CRS resource units, the EPRE_CSI-RSIndicate each CSI-RS resource unit On energy；According to the EPRE_PDSCHWith EPRE_CRSRatio or the EPRE_PDSCHWith EPRE_CSI-RSRatio, adjustment just Beginning channel state information, the channel state information after being adjusted.

N number of parameter in descending power allocation of parameters corresponds to N number of different frequency band, and therefore, N number of different frequency band is right respectively Answer different channel state informations.It should be noted that the channel shape obtained according to the specific descending power allocation of parameters of frequency band State information is state information of data channel, and receives the letter used when the specific descending power allocation of parameters of frequency band of base station transmission Road can be common channel.

It should be noted that base station to terminal send the specific descending power allocation of parameters of frequency band after, described N number of Reference signal is sent to the terminal on frequency band, after terminal receives the reference signal of base station transmission, terminal is according to actually connecing The reference signal after wireless channel is decayed received, is compared with original reference signals, to obtain initial channel shape State information.

Step 403, the channel state information is sent to the base station.

Optionally, report information that radio channel status information is reported to base station by CQI.

The embodiment of the present invention provides a kind of notification method of descending power allocation of parameters, the frequency band sent by receiving base station Specific descending power allocation of parameters；Channel state information is obtained according to the specific descending power allocation of parameters of the frequency band；It will The channel state information is sent to the base station.With in the prior art since CRS or CSI-RS is in whole system bandwidth Transmission power be constant, i.e., for existing Whole frequency band only there are one descending power allocation of parameters, CRS or CSI-RS's Transmission power will not change with the variation of frequency band, therefore may result between the CRS or CSI-RS between cell and occur The interference of stronger minizone reference signal, the spectrum efficiency for thereby reducing system are compared, and the embodiment of the present invention is by connecing The specific descending power allocation of parameters of frequency band is received, and then different frequency bands may be implemented using different descending power distribution ginsengs Number, i.e., different frequency bands use different transmission powers, the interference of minizone reference signal can be reduced, to improve system Spectrum efficiency.

The embodiment of the present invention provides a kind of notification method of descending power allocation of parameters, as shown in figure 5, this method includes：

Step 501, base station sends the specific descending power allocation of parameters of frequency band, the specific downlink work(of frequency band to terminal Rate allocation of parameters includes N number of parameter, and N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2.

Optionally, N number of parameter can be with all first kind parameters.Wherein, the first kind parameter can be first Ratio parameter, first ratio parameter are EPRE_PDSCHWith EPRE_CRSRatio, the EPRE_PDSCHIndicate that physical down is shared Energy on channel PDSCH resource units, the EPRE_CRSIndicate the energy on public reference signal CRS resource units；Alternatively, The first kind parameter is the second ratio parameter, and second ratio parameter is EPRE_PDSCHWith EPRE_CSI-RSRatio, it is described EPRE_CSI-RSIndicate the energy on channel state information reference signals CSI-RS resource unit.It should be noted that descending power In allocation of parameters except including N number of parameter in addition to, can also include other parameters, this parameter is not the specific parameter of frequency band.It can With understanding, this parameter is the parameter of Whole frequency band, not different because of the difference of frequency band.

For example, descending power allocation of parameters includes parameter 1 and parameter 2, wherein parameter 1 corresponds to frequency band 1, and parameter 2 corresponds to Frequency band 2, and frequency band 1 is different frequency bands from frequency band 2.

For example, descending power allocation of parameters includes parameter 1, parameter 2 and parameter 3, wherein parameter 1 corresponds to frequency band 1, parameter 2 correspond to frequency band 2, and parameter 3 corresponds to frequency band 3, and frequency band 1, frequency band 2 are different frequency bands from frequency band 3.

Optionally, N number of parameter includes the first kind parameter and the second class parameter.Wherein, the second class parameter For the ratio of the first kind parameter and the first kind parameter in second band in first band；Alternatively, described second Class parameter is first ratio parameter in first ratio parameter and second band in first band or described the The ratio of second ratio parameter on two frequency bands；Alternatively, the second class parameter is second ratio in first band Value parameter and first ratio parameter in second band or the ratio of second ratio parameter in the second band Value；Alternatively, the third class parameter is the first kind parameter in first band and described first in the second band The ratio of ratio parameter or second ratio parameter；

For example, descending power allocation of parameters includes parameter 1 and parameter 4, wherein parameter 1 is first kind parameter, parameter 4 For the second class parameter.Parameter 1 corresponds to frequency band 1, and parameter 4 corresponds to frequency band 4, and parameter 4 is the on parameter 1 and frequency band 4 on frequency band 1 The ratio of a kind of parameter, i.e. parameter 4 are the parameter of ratio between two first kind parameters.Or parameter 1 can be the first ratio Parameter, or the second ratio parameter, in addition, 4 corresponding first kind parameter of frequency band is parameter 2, parameter 2 can be the with than Value parameter, or the second ratio parameter, then parameter 4 can also be the parameter 1 and frequency band on frequency band 1, the first ratio on 4 Either the ratio of the second ratio parameter or parameter 4 can also be on the first ratio parameters and frequency band 4 on frequency band 1 for parameter The ratio of first ratio parameter or the second ratio parameter, alternatively, parameter 4 can also be frequency band 1 on the second ratio parameter with The ratio of the first ratio parameter or the second ratio parameter on frequency band 4.It should be noted that in descending power allocation of parameters simultaneously It does not include 2 corresponding first kind parameter of frequency band.

For example, descending power allocation of parameters includes parameter 1, parameter 2 and parameter 4, wherein in descending power allocation of parameters Including 2 first kind parameters and 1 the second class parameter, i.e. parameter 1, parameter 2 is first kind parameter, and parameter 4 is the second class parameter. Parameter 1 corresponds to frequency band 1, and parameter 2 corresponds to frequency band 2, and parameter 4 corresponds to frequency band 4, and parameter 4 is on parameter 1 and frequency band 4 on frequency band 1 The ratio of first kind parameter, alternatively, parameter 4 is the ratio of the parameter 2 and the first kind parameter on frequency band 4 on frequency band 2.Assuming that frequency 4 corresponding first kind parameter of band is parameter 3.

Parameter 1 can be the first ratio parameter, or the second ratio parameter, parameter 3 can be the first ratio parameter, May be the second ratio parameter, then parameter 4 can also be the first ratio parameter on parameter 1 and the frequency band 4 on frequency band 1 or The ratio of second ratio parameter.Or parameter 4 can also be the first ratio parameter on frequency band 1 and the first ratio on frequency band 4 The ratio of parameter or the second ratio parameter.Or parameter 4 can also be on the second ratio parameter and frequency band 4 on frequency band 1 The ratio of first ratio parameter or the second ratio parameter.

Parameter 2 can be the first ratio parameter, or the second ratio parameter, parameter 3 can be the first ratio parameter, May be the second ratio parameter, then parameter 4 can also be the first ratio parameter on parameter 2 and the frequency band 4 on frequency band 2 or The ratio of second ratio parameter.Or parameter 4 can also be the first ratio parameter on frequency band 2 and the first ratio on frequency band 4 The ratio of parameter or the second ratio parameter.Or parameter 4 can also be on the second ratio parameter and frequency band 4 on frequency band 2 The ratio of first ratio parameter or the second ratio parameter.

It should be noted that not including 4 corresponding first kind parameter of frequency band in descending power allocation of parameters.

For example, descending power allocation of parameters includes parameter 1, parameter 2 and parameter 4, wherein in descending power allocation of parameters Including 1 first kind parameter and 2 the second class parameters, i.e. parameter 1 is first kind parameter, and parameter 2, parameter 4 are the second class parameter. Parameter 1 corresponds to frequency band 1, and parameter 2 corresponds to frequency band 2, and 2 corresponding first kind parameter of frequency band is parameter 3, and parameter 4 corresponds to frequency band 4, frequency 4 corresponding first kind parameter of band is parameter, 5, parameter 2 is the ratio of the first kind parameter on parameter 1 and frequency band 2 on frequency band 1, Parameter 4 is the ratio of the parameter 1 and the first kind parameter on frequency band 4 on frequency band 1.

Parameter 1 can be the first ratio parameter, or the second ratio parameter, parameter 3 can be the first ratio parameter, It may be the second ratio parameter.Then parameter 2 can be 1 corresponding first kind parameter of frequency band, first ratio corresponding with frequency band 2 Either the ratio of the second ratio parameter or parameter 2 can be that 1 corresponding first ratio parameter of frequency band is corresponding with frequency band 2 to parameter The first ratio parameter either the ratio of the second ratio parameter or parameter 2 can be 1 corresponding second ratio parameter of frequency band with The ratio of 2 corresponding first ratio parameter of frequency band or the second ratio parameter.It is no longer herein the first ratio parameter to parameter 5, Or the case where the second ratio parameter, does and introduces one by one, is that the first ratio parameter or the second ratio are joined for details, reference can be made to parameter 3 Several situations.It should be noted that not including 2 corresponding first kind parameter of frequency band and frequency band 4 in descending power allocation of parameters Corresponding first kind parameter.

For example, first kind parameter is EPRE_PDSCHWith EPRE_CRSRatio when, P may be used_A1Expression parameter 1, parameter 1 are First kind parameter, P_A1For the descending power allocation of parameters corresponding to frequency band 1.P may be used_A2Expression parameter 2, parameter 2 are first Class parameter, P_A2For the descending power allocation of parameters corresponding to frequency band 2.Parameter 4 is the second class parameter, and P may be used_A14Indicate ginseng Number 4, then P_A14=P_A1/P_A4Or P_A14=P_A4/P_A1, wherein P_A4Indicate 4 corresponding first kind parameter of frequency band.Certainly, parameter 4 is gone back P may be used_A24It indicates, then P_A24=P_A2/P_A4Or P_A24=P_A4/P_A2。

Alternatively, parameter 1 is first kind parameter, parameter 2 and parameter 4 are the second class parameter, wherein parameter 2 uses P_A12Table Show, then P_A12=P_A1/P_A2Or P_A12=P_A2/P_A1, wherein P_A2For 2 corresponding first kind parameter of frequency band, using P_A14Expression parameter 4, then P_A14=P_A1/P_A4Or P_A14=P_A4/P_A1, wherein P_A4Indicate 4 corresponding first kind parameter of frequency band.

For example, first kind parameter is EPRE_PDSCHWith EPRE_CSI-RSRatio when, P may be used_C1Expression parameter 1, parameter 1 For first kind parameter, P_C1For the descending power allocation of parameters corresponding to frequency band 1.P may be used_C2Expression parameter 2, parameter 2 are the A kind of parameter, P_C2For the descending power allocation of parameters corresponding to frequency band 2.Parameter 4 is the second class parameter, can be with P_C14Expression parameter 4, P_C14=P_C1/P_C4Or P_C14=P_C4/P_C1, wherein P_C4Indicate 4 corresponding first kind parameter of frequency band.Certainly, parameter 4 can be with Using P_C24It indicates, then P_C24=P_C2/P_C4Or P_C24=P_C4/P_C2。

Alternatively, parameter 1 is first kind parameter, parameter 2 and parameter 4 are the second class parameter, wherein parameter 2 uses P_C12Table Show, then P_C12=P_C1/P_C2Or P_C12=P_C2/P_C1, wherein P_C2For 2 corresponding first kind parameter of frequency band, using P_C14Expression parameter 4, then P_C14=P_C1/P_C4Or P_C14=P_C4/P_C1, wherein P_C4Indicate 4 corresponding first kind parameter of frequency band.

It is further alternative, any two frequency bands in the corresponding N number of frequency band of N number of parameter that descending power allocation of parameters includes It is partly overlapping or be not overlapped on frequency domain.

Frequency band refers to a band frequency resource, for example, a band frequency resource of 10MHz bandwidth.And frequency domain is a logical concept, Refer to frequency space.

It is further alternative, each frequency band in the corresponding N number of frequency band of N number of parameter that descending power allocation of parameters includes The fractional bandwidth or part physical resource block of carrier wave are occupied in Base Transmitter reference signal；Alternatively,

N number of parameter that descending power allocation of parameters includes corresponds to each frequency band in N number of frequency band and is referred in Base Transmitter Whole bandwidth of carrier wave are occupied when signal；The reference signal is CRS or CSI-RS.

For example, a carrier wave is 20MHz, then a frequency band can occupy whole 20MHz, this time-frequency band is exactly to occupy one A carrier wave, as soon as frequency band can also occupy 3MHz, then frequency band occupies the fractional bandwidth of the carrier wave.

Further alternative, base station sends radio resource control to terminal（Radio Resource Control, RRC）Signaling, the RRC signaling include the specific descending power allocation of parameters of the frequency band.

Step 502, base station sends reference signal to the terminal on N number of frequency band.

Wherein, the transmission power of the reference signal sent on each frequency band in N number of frequency band corresponds to described every The specific descending power allocation of parameters of the frequency band of a frequency band, the reference signal includes CRS or CSI-RS.Shown in attached drawing 3, Dash area indicates different frequency bands from white portion respectively, and the transmission power of different frequency bands is different, and for details, reference can be made to attached drawings 3 Description, this is no longer going to repeat them.

Step 503, terminal receives the specific descending power allocation of parameters of frequency band that base station is sent.

It should be noted that may refer in step 501 for the description of the specific descending power allocation of parameters of frequency band Description, this is no longer going to repeat them.

Optionally, terminal receives the radio resource control RRC signaling that base station is sent, and the RRC signaling includes institute State the specific descending power allocation of parameters of frequency band.

It should be noted that the execution sequence of step 502 and step 503 is not fixed, step 502 can be first carried out and executed again Step 503, it either first carries out step 503 and executes step 502 or step 502 again and be performed simultaneously with step 503.

Step 504, on N number of frequency band, terminal receives the reference signal that the base station is sent.

Step 505, terminal obtains initial channel status information according to the reference signal.

This step can obtain initial channel status information according to the prior art, i.e., terminal is according to the process being an actually-received Either CSI-RS is compared CRS after wireless channel decaying with original CRS or CSI-RS, to obtain channel status letter Breath.

Step 506, terminal obtains EPRE according to the descending power allocation of parameters_PDSCHWith EPRE_CRSRatio or EPRE_PDSCHWith EPRE_CSI-RSRatio.

The EPRE_PDSCIndicate the energy on Physical Downlink Shared Channel PDSCH resource units, the EPRE_CRSIt indicates Energy on CRS resource units, the EPRE_CSI-RSIndicate the energy on CSI-RS resource unit.

Optionally, this step terminal obtains EPRE according to the descending power allocation of parameters_PDSCHWith EPRE_CRSRatio or Person EPRE_PDSCHWith EPRE_CSI-RSRatio when, since N number of parameter in descending power allocation of parameters can be first kind parameter It can be the second class parameter, therefore can will directly obtain the EPRE according to the first kind parameter_PDSCHWith EPRE_CRSRatio Value or the EPRE_PDSCHWith EPRE_CSI-RSRatio；Alternatively,

It is calculated according to the second class parameter and obtains the first kind parameter, then using the first kind parameter as described in EPRE_PDSCHWith EPRE_CRSRatio or the EPRE_PDSCHWith EPRE_CSI-RSRatio.

Step 507, terminal is according to the EPRE_PDSCHWith EPRE_CRSRatio or the EPRE_PDSCHWith EPRE_CSI-RS's Ratio adjusts the initial channel status information, the channel state information after being adjusted.

For example, CQI is 10dB, EPRE in the initial channel status information that step 505 obtains_PDSCHWith EPRE_CRSRatio or EPRE described in person_PDSCHWith EPRE_CSI-RSRatio be 3dB, then the value of CQI can be increased 3dB, to the letter after being adjusted Channel state information, i.e. CQI are 13dB.

Step 508, the channel state information after adjustment is sent to base station by terminal.

The embodiment of the present invention provides a kind of notification method of descending power allocation of parameters, by by the specific downlink work(of frequency band Rate allocation of parameters is notified to terminal, and then different frequency bands may be implemented and use different descending power allocation of parameters, i.e., different Frequency band use different transmission powers, the interference of minizone reference signal can be reduced, to improve the spectrum efficiency of system.

The embodiment of the present invention provides a kind of notice device of descending power allocation of parameters, as shown in fig. 6, the device can be Base station, the device include：Transmission unit 601, receiving unit 602；

Transmission unit 601, for terminal send the specific descending power allocation of parameters of frequency band, so as to the terminal according to The specific descending power allocation of parameters of frequency band obtains channel state information, the specific descending power allocation of parameters of frequency band Including N number of parameter, N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Optionally, N number of parameter is first kind parameter；

Optionally, N number of parameter includes the first kind parameter and the second class parameter；

Optionally, described N number of in the specific descending power allocation of parameters of the frequency band that the transmission unit 601 is sent Any two frequency bands partly overlap on frequency domain or are not overlapped in frequency band.

Optionally, described N number of in the specific descending power allocation of parameters of the frequency band that the transmission unit 601 is sent Each frequency band occupies the fractional bandwidth or part physical resource block of carrier wave in Base Transmitter reference signal in frequency band；Or Person, the transmission unit 601 send the specific descending power allocation of parameters of the frequency band in N number of frequency band in each Frequency band occupies whole bandwidth of carrier wave in Base Transmitter reference signal；The reference signal is CRS or CSI-RS.

Receiving unit 602, the channel state information sent for receiving the terminal.

It is further alternative, the transmission unit 601, for sending radio resource control RRC signaling, institute to terminal It includes the specific descending power allocation of parameters of the frequency band to state RRC signaling.

Further alternative, the transmission unit 601 is additionally operable to：

It should be noted that in 6 shown device of attached drawing, between the specific implementation process and modules of modules The contents such as information exchange may refer to embodiment of the method due to being based on same inventive concept with the method for the present invention embodiment, This is not repeated one by one.

The embodiment of the present invention provides a kind of notice device of descending power allocation of parameters, is sent to terminal by transmission unit The specific descending power allocation of parameters of frequency band, so that the terminal obtains channel status letter according to the descending power allocation of parameters Breath；Receiving unit receives the channel state information that the terminal is sent so that different frequency bands may be implemented using different Descending power allocation of parameters, i.e., different frequency bands uses different transmission powers, can reduce the dry of minizone reference signal It disturbs, to improve the spectrum efficiency of system.

The embodiment of the present invention provides a kind of base station, as shown in fig. 7, the base station includes：Memory 701, processor 702, hair Send device 703, receiver 704；

Memory 701, for store include program routine information；

Processor 702, for being coupled with memory 701, transmitter 703 and receiver 704, for controlling described program example The execution of journey；

Transmitter 703, for sending the specific descending power allocation of parameters of frequency band to terminal, so that the terminal is according to institute It states the specific descending power allocation of parameters of frequency band and obtains channel state information, the specific descending power allocation of parameters packet of frequency band N number of parameter is included, N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Receiver 704, the channel state information sent for receiving the terminal.

Optionally, N number of ginseng in the specific descending power allocation of parameters of the frequency band that the transmitter 703 is sent Number is first kind parameter；

Optionally, N number of ginseng in the specific descending power allocation of parameters of the frequency band that the transmitter 703 is sent Number includes the first kind parameter and the second class parameter；

Optionally, N number of frequency in the specific descending power allocation of parameters of the frequency band that the transmitter 703 is sent Any two frequency bands partly overlap on frequency domain or are not overlapped in band.

Optionally, N number of frequency in the specific descending power allocation of parameters of the frequency band that the transmitter 703 is sent Each frequency band occupies the fractional bandwidth or part physical resource block of carrier wave in Base Transmitter reference signal in band；Alternatively, Each frequency band in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmitter 703 is sent Whole bandwidth of carrier wave are occupied in Base Transmitter reference signal；The reference signal is CRS or CSI-RS.

Further alternative, the transmitter 703 is used for：

Further alternative, the transmitter 703 is additionally operable to：

Reference signal is sent to the terminal, wherein sent out on each frequency band in N number of frequency band on N number of frequency band The transmission power for the reference signal sent corresponds to the specific descending power allocation of parameters of the frequency band of each frequency band, The reference signal includes CRS or CSI-RS.It should be noted that N number of parameter that descending power allocation of parameters includes is the A kind of parameter, the first kind parameter are EPRE_PDSCHWith EPRE_CRSRatio, alternatively, the first kind parameter be EPRE_PDSCH With EPRE_CSI-RSRatio.Numerically, transmission power and EPRE_CRSOr EPRE_CSI-RSIt is identical.

It should be noted that in 7 shown device of attached drawing, between the specific implementation process and modules of modules The contents such as information exchange may refer to embodiment of the method due to being based on same inventive concept with the method for the present invention embodiment, This is not repeated one by one.

The embodiment of the present invention provides a kind of base station, and the specific descending power distribution ginseng of frequency band is sent to terminal by transmitter Number, so that the terminal obtains channel state information according to the descending power allocation of parameters；Receiver receives the terminal hair The channel state information sent so that different frequency bands may be implemented and use different descending power allocation of parameters, i.e., it is different Frequency band use different transmission powers, the interference of minizone reference signal can be reduced, to improve the spectrum efficiency of system.

The embodiment of the present invention provides a kind of notice device of descending power allocation of parameters, which can be terminal, such as Fig. 8 Shown, which includes：Receiving unit 801, obtaining unit 802, transmission unit 803；

Receiving unit 801, the specific descending power allocation of parameters of frequency band for receiving base station transmission, the frequency band are specific Descending power allocation of parameters include N number of parameter, N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Wherein, N number of ginseng in the specific descending power allocation of parameters of the frequency band that the receiving unit 801 receives Number is first kind parameter；The first kind parameter is the first ratio parameter, and first ratio parameter is EPRE_PDSCHWith EPRE_CRS Ratio, the EPRE_PDSCHIndicate the energy on Physical Downlink Shared Channel PDSCH resource units, the EPRE_CRSIndicate public Energy on reference signal CRS resource units altogether；Alternatively, the first kind parameter is the second ratio parameter, second ratio Parameter is EPRE_PDSCHWith EPRE_CSI-RSRatio, the EPRE_CSI-RSIndicate channel state information reference signals CSI-RS resource Energy on unit；

N number of parameter packet in the specific descending power allocation of parameters of the frequency band that the receiving unit 801 receives Include the first kind parameter and the second class parameter；Wherein, the second class parameter is the first kind parameter in first band With the ratio of the first kind parameter in second band；Alternatively, the second class parameter is described first in first band First ratio parameter in ratio parameter and second band or second ratio parameter in the second band Ratio；Alternatively, the second class parameter is second ratio parameter in first band and described first in second band The ratio of second ratio parameter on ratio parameter or the second band；Alternatively, the third class parameter is first The first kind parameter on frequency band in the second band first ratio parameter or second ratio parameter Ratio；

Optionally, described N number of in the specific descending power allocation of parameters of the frequency band that the receiving unit 801 receives Any two frequency bands partly overlap on frequency domain or are not overlapped in frequency band.

Optionally, described N number of in the specific descending power allocation of parameters of the frequency band that the receiving unit 801 receives Each frequency band occupies the fractional bandwidth or part physical resource block of carrier wave in Base Transmitter reference signal in frequency band；Or Person, the receiving unit 801 receive the specific descending power allocation of parameters of the frequency band in N number of frequency band in each Frequency band occupies whole bandwidth of carrier wave in Base Transmitter reference signal；The reference signal is CRS or CSI-RS.

Obtaining unit 802, the specific descending power allocation of parameters of the frequency band for being received according to receiving unit 801 obtain Obtain channel state information；

Transmission unit 803, the channel state information for obtaining obtaining unit 802 are sent to the base station.

It is further alternative, in the obtaining unit 802 ginseng is distributed according to the descending power that receiving unit 801 receives Before number obtains channel state information, the receiving unit 801 is additionally operable to receive the base station transmission on N number of frequency band Reference signal, the reference signal includes public reference signal CRS or channel state information reference signals CSI-RS；

The obtaining unit 802 is additionally operable to obtain initial channel status information according to the reference signal.

It is further alternative, when N number of parameter in the specific descending power allocation of parameters of the frequency band is first kind parameter When, the obtaining unit 802, for according to first ratio parameter or second ratio parameter, adjusting described initial Channel state information, the channel state information after being adjusted.

It is further alternative, as shown in figure 9, N number of parameter in the specific descending power allocation of parameters of the frequency band is When the second class parameter, the obtaining unit 802, including：First obtains module 8021, and second obtains module 8022；

First obtains module 8021, and first ratio parameter or institute are obtained for being calculated according to the second class parameter State the second ratio parameter；

Second obtains module 8022, for according to first ratio parameter or second ratio parameter, adjusting institute Initial channel status information is stated, the channel state information after being adjusted.

It is further alternative, when the specific descending power allocation of parameters of 801 frequency acceptance band of the receiving unit, for receiving The radio resource control RRC signaling that base station is sent, the RRC signaling include the specific descending power distribution of the frequency band Parameter.

It should be noted that in attached drawing 8 or 9 shown devices, the specific implementation process and modules of modules Between the contents such as information exchange may refer to method implementation due to being based on same inventive concept with the method for the present invention embodiment Example, does not repeat one by one herein.

The embodiment of the present invention provides a kind of notice device of descending power allocation of parameters, and base station hair is received by receiving unit The specific descending power allocation of parameters of frequency band sent, under the frequency band that then obtaining unit is received according to receiving unit is specific Row power distribution gain of parameter channel state information；The channel state information of acquisition is sent to the base by transmission unit It stands so that different frequency bands can be realized using different descending power point by the specific descending power allocation of parameters of frequency band With parameter, i.e., different frequency bands uses different transmission powers, can reduce the interference of minizone reference signal, be to improve The spectrum efficiency of system.

The embodiment of the present invention provides a kind of terminal, and as shown in Figure 10, which includes：Receiver 1001, memory 1002, Processor 1003, transmitter 1004；

Receiver 1001, the specific descending power allocation of parameters of frequency band for receiving base station transmission, the frequency band are specific Descending power allocation of parameters include N number of parameter, N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Memory 1002, for store include program routine information；

Processor 1003, for being coupled with memory 1002, transmitter 1004 and receiver 1001, for controlling the journey The execution of sequence routine, is specifically used for：The specific descending power allocation of parameters of the frequency band received according to receiver is believed Channel state information；

Transmitter 1004, the channel state information for obtaining processor are sent to the base station.

Wherein, N number of ginseng in the specific descending power allocation of parameters of the frequency band that the receiver 1001 receives Number is first kind parameter；The first kind parameter is the first ratio parameter, and first ratio parameter is EPRE_PDSCHWith EPRE_CRS Ratio, the EPRE_PDSCHIndicate the energy on Physical Downlink Shared Channel PDSCH resource units, the EPRE_CRSIndicate public Energy on reference signal CRS resource units altogether；Alternatively, the first kind parameter is the second ratio parameter, second ratio Parameter is EPRE_PDSCHWith EPRE_CSI-RSRatio, the EPRE_CSI-RSIndicate channel state information reference signals CSI-RS resource Energy on unit.

The receiver 1001 receive the specific descending power allocation of parameters of the frequency band in N number of parameter include The first kind parameter and the second class parameter；Wherein, the second class parameter be first band on the first kind parameter With the ratio of the first kind parameter in second band；Alternatively, the second class parameter is described first in first band First ratio parameter in ratio parameter and second band or second ratio parameter in the second band Ratio；Alternatively, the second class parameter is second ratio parameter in first band and described first in second band The ratio of second ratio parameter on ratio parameter or the second band；Alternatively, the third class parameter is first The first kind parameter on frequency band in the second band first ratio parameter or second ratio parameter Ratio；

Optionally, described N number of in the specific descending power allocation of parameters of the frequency band that the receiver 1001 receives Any two frequency bands partly overlap on frequency domain or are not overlapped in frequency band.

Optionally, described N number of in the specific descending power allocation of parameters of the frequency band that the receiver 1001 receives Each frequency band occupies the fractional bandwidth or part physical resource block of carrier wave in Base Transmitter reference signal in frequency band；Or Person, the receiver 1001 receive the specific descending power allocation of parameters of the frequency band in N number of frequency band in each Frequency band occupies whole bandwidth of carrier wave in Base Transmitter reference signal；The reference signal is CRS or CSI-RS.

It is further alternative, in the specific downlink work(of the frequency band that the processor 1003 is received according to receiver 1001 Before rate allocation of parameters obtains channel state information, the receiver 1001 is additionally operable to receive the base on N number of frequency band Stand send reference signal, the reference signal includes public reference signal CRS or channel state information reference signals CSI-RS；

The processor is additionally operable to obtain initial channel status information according to the reference signal.

It is further alternative, when N number of parameter in the specific descending power allocation of parameters of the frequency band is first kind parameter When, the processor 1003 is used to, according to first ratio parameter or second ratio parameter, adjust the initial letter Channel state information, the channel state information after being adjusted.

It is further alternative, when N number of parameter in the specific descending power allocation of parameters of the frequency band is the second class parameter When, the processor 1003 is calculated according to the second class parameter obtains first ratio parameter or second ratio ginseng Number；Further according to first ratio parameter or second ratio parameter, the initial channel status information is adjusted, is adjusted Channel state information after whole.

It is further alternative, when the specific descending power allocation of parameters of 1001 frequency acceptance band of the receiver, for receiving The radio resource control RRC signaling that base station is sent, the RRC signaling include the specific descending power distribution of the frequency band Parameter.

It should be noted that in 10 shown device of attached drawing, the specific implementation process and modules of modules it Between the contents such as information exchange may refer to embodiment of the method due to being based on same inventive concept with the method for the present invention embodiment, It does not repeat one by one herein.

The embodiment of the present invention provides a kind of notice device of descending power allocation of parameters, and receiving base station by receiver sends The specific descending power allocation of parameters of frequency band, the specific downlink work(of the frequency band that then processor is received according to receiving unit Rate allocation of parameters obtains channel state information；The channel state information of acquisition is sent to the base station by transmitter so that It can realize that different frequency bands uses different descending power allocation of parameters by the specific descending power allocation of parameters of frequency band, I.e. different frequency bands uses different transmission powers, the interference of minizone reference signal can be reduced, to improve the frequency of system Spectrum efficiency.

It should be noted that the apparatus embodiments described above are merely exemplary, wherein described be used as separating component The unit of explanation may or may not be physically separated, and the component shown as unit can be or can also It is not physical unit, you can be located at a place, or may be distributed over multiple network units.It can be according to actual It needs that some or all of module therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not In the case of making the creative labor, you can to understand and implement.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow Help software that the mode of required common hardware is added to realize, naturally it is also possible to by specialized hardware include application-specific integrated circuit, specially It is realized with CPU, private memory, special components and parts etc., but the former is more preferably embodiment in many cases.Based in this way Understanding, substantially the part that contributes to existing technology can be with the shape of software product in other words for technical scheme of the present invention Formula embodies, which is stored in the storage medium that can be read, and such as the floppy disk of computer, USB flash disk, movement are hard Disk, read-only memory（ROM, Read-Only Memory）, random access memory（RAM, Random Access Memory）, Magnetic disc or CD etc., including some instructions are used so that a computer equipment（Can be personal computer, server, or Person's network equipment etc.）Execute the method described in each embodiment of the present invention.

Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for device and For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method The part of embodiment illustrates.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. a kind of notification method of descending power allocation of parameters, which is characterized in that including：

The specific descending power allocation of parameters of frequency band is sent to terminal, so that the terminal is according to the specific downlink work(of the frequency band Rate allocation of parameters obtains channel state information, and the specific descending power allocation of parameters of frequency band includes N number of parameter, described N number of Parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

Receive the channel state information that the terminal is sent.

2. according to the method described in claim 1, it is characterized in that,

N number of parameter is first kind parameter；

The first kind parameter is the first ratio parameter, and first ratio parameter is EPRE_PDSCHWith EPRE_CRSRatio, it is described EPRE_PDSCHIndicate the energy on Physical Downlink Shared Channel PDSCH resource units, the EPRE_CRSIndicate public reference signal Energy on CRS resource units；Alternatively, the first kind parameter is the second ratio parameter, second ratio parameter is EPRE_PDSCHWith EPRE_CSI-RSRatio, the EPRE_CSI-RSIt indicates on channel state information reference signals CSI-RS resource unit Energy.

3. according to the method described in claim 2, it is characterized in that,

The second class parameter is the first kind parameter in first band and the first kind parameter in second band Ratio；Alternatively, the second class parameter is first ratio parameter in first band and described first in second band The ratio of second ratio parameter on ratio parameter or the second band；Alternatively, the second class parameter is first Second ratio parameter on frequency band and first ratio parameter in second band or the institute in the second band State the ratio of the second ratio parameter；Alternatively, third class parameter is the first kind parameter and second frequency in first band The ratio of first ratio parameter or second ratio parameter that take；

4. according to the method described in claim 3, it is characterized in that,

Any two frequency bands partly overlap on frequency domain or are not overlapped in N number of frequency band.

5. method according to claim 1 or 4, which is characterized in that

Each frequency band occupies the fractional bandwidth or part physical of carrier wave in Base Transmitter reference signal in N number of frequency band Resource block；Alternatively,

The reference signal is CRS or CSI-RS.

6. according to the method described in claim 5, it is characterized in that, described send the specific descending power distribution of frequency band to terminal Parameter, including：

Radio resource control RRC signaling is sent to terminal, the RRC signaling includes the specific descending power of the frequency band Allocation of parameters.

7. according to the method described in claim 6, it is characterized in that, sending the specific descending power of frequency band point to terminal described After parameter, before the channel state information for receiving the terminal transmission, further include：

Reference signal is sent to the terminal, wherein sent on each frequency band in N number of frequency band on N number of frequency band The transmission power of the reference signal corresponds to the specific descending power allocation of parameters of the frequency band of each frequency band, described Reference signal includes CRS or CSI-RS.

8. a kind of notification method of descending power allocation of parameters, which is characterized in that including：

Receive the specific descending power allocation of parameters of frequency band that base station is sent, the specific descending power allocation of parameters packet of frequency band N number of parameter is included, N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

The channel state information is sent to the base station.

9. according to the method described in claim 8, it is characterized in that,

N number of parameter is first kind parameter；

10. according to the method described in claim 9, it is characterized in that,

11. according to the method described in claim 9, it is characterized in that, the specific downlink of frequency band sent in the reception base station After power distribution parameter, further include：

The reference signal that the base station is sent is received on N number of frequency band, the reference signal includes public reference signal CRS Or channel state information reference signals CSI-RS；

It is described that channel state information is obtained according to the specific descending power allocation of parameters of the frequency band, including：

According to first ratio parameter or second ratio parameter, the initial channel status information is adjusted, is adjusted Channel state information after whole.

12. according to the method described in claim 10, it is characterized in that, the specific downlink of frequency band sent in the reception base station After power distribution parameter, further include：

13. according to the method described in claim 10, it is characterized in that,

14. according to the method for claim 13, which is characterized in that

Each frequency band occupies fractional bandwidth or the part of carrier wave in the Base Transmitter reference signal in N number of frequency band Physical Resource Block；Alternatively,

The reference signal is CRS or CSI-RS.

15. according to the method described in any one of claim 8-14, which is characterized in that the frequency band spy for receiving base station and sending Fixed descending power allocation of parameters, including：

The radio resource control RRC signaling that base station is sent is received, the RRC signaling includes the specific downlink of the frequency band Power distribution parameter.

16. a kind of notice device of descending power allocation of parameters, which is characterized in that including：

Transmission unit, for sending the specific descending power allocation of parameters of frequency band to terminal, so that the terminal is according to the frequency Channel state information is obtained with specific descending power allocation of parameters, the specific descending power allocation of parameters of frequency band includes N A parameter, N number of parameter correspond to N number of frequency band respectively, and the N is greater than or equal to 2；

Receiving unit, the channel state information sent for receiving the terminal.

17. device according to claim 16, which is characterized in that

N number of parameter in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent is joined for the first kind Number；

18. device according to claim 17, which is characterized in that

N number of parameter in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent includes described the A kind of parameter and the second class parameter；

19. device according to claim 18, which is characterized in that

Any two frequencies in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent Band partly overlaps on frequency domain or is not overlapped.

20. device according to claim 19, which is characterized in that

Each frequency in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent Band occupies the fractional bandwidth or part physical resource block of carrier wave in Base Transmitter reference signal；Alternatively,

Each frequency in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the transmission unit is sent Band occupies whole bandwidth of carrier wave in Base Transmitter reference signal；

The reference signal is CRS or CSI-RS.

21. device according to claim 20, which is characterized in that the transmission unit is used for：

22. according to the device described in any one of claim 16-21, which is characterized in that the transmission unit is additionally operable to：

23. a kind of notice device of descending power allocation of parameters, which is characterized in that including：

Receiving unit, the specific descending power allocation of parameters of frequency band for receiving base station transmission, the specific downlink of frequency band Power distribution parameter includes N number of parameter, and N number of parameter corresponds to N number of frequency band respectively, and the N is greater than or equal to 2；

24. device according to claim 23, which is characterized in that

N number of parameter in the specific descending power allocation of parameters of the frequency band that the receiving unit receives is joined for the first kind Number；

25. device according to claim 24, which is characterized in that

N number of parameter in the specific descending power allocation of parameters of the frequency band that the receiving unit receives includes described the A kind of parameter and the second class parameter；

26. device according to claim 24, which is characterized in that

The receiving unit is additionally operable to receive the reference signal that the base station is sent on N number of frequency band, the reference signal Including public reference signal CRS or channel state information reference signals CSI-RS；

The obtaining unit, for according to first ratio parameter or second ratio parameter, adjusting the initial letter Channel state information, the channel state information after being adjusted.

27. device according to claim 25, which is characterized in that

The obtaining unit, including：

First obtains module, and first ratio parameter or second ratio are obtained for being calculated according to the second class parameter Value parameter；

Second obtains module, for according to first ratio parameter or second ratio parameter, adjusting the initial letter Channel state information, the channel state information after being adjusted.

28. device according to claim 25, which is characterized in that

Any two frequencies in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiving unit receives Band partly overlaps on frequency domain or is not overlapped.

29. device according to claim 28, which is characterized in that

Each frequency in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiving unit receives Band occupies the fractional bandwidth or part physical resource block of carrier wave in the Base Transmitter reference signal；Alternatively,

Each frequency in N number of frequency band in the specific descending power allocation of parameters of the frequency band that the receiving unit receives Band occupies whole bandwidth of carrier wave in the Base Transmitter reference signal；

The reference signal is CRS or CSI-RS.

30. according to the device described in any one of claim 23-29, which is characterized in that the receiving unit is used for：