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CN109275182A - Notification method and device for downlink power allocation parameter - Google Patents

Notification method and device for downlink power allocation parameter Download PDF

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Publication number
CN109275182A
CN109275182A CN201811162217.7A CN201811162217A CN109275182A CN 109275182 A CN109275182 A CN 109275182A CN 201811162217 A CN201811162217 A CN 201811162217A CN 109275182 A CN109275182 A CN 109275182A
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parameter
power allocation
frequency band
ratio
downlink power
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CN109275182B (en
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任晓涛
周永行
薛丽霞
孙静原
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Beijing Jingshi Intellectual Property Management Co ltd
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Huawei Technologies Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04Transmission power control [TPC]
    • H04W52/30Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention discloses the notification method and device of a kind 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 is by sending the specific descending power allocation of parameters of frequency band to terminal, 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 respectively corresponds N number of frequency band, 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

一种下行功率分配参数的通知方法及装置Notification method and device for downlink power allocation parameter

本申请为于2013年12月3日递交中国专利局、申请号为201380001455.9、发明名称为“一种下行功率分配参数的通知方法及装置”的专利申请的分案申请。This application is a divisional application filed on December 3, 2013, to the Chinese Patent Office, application number 201380001455.9, and the patent application entitled "A Notification Method and Device for Downstream Power Distribution Parameters".

技术领域Technical field

本发明涉及通信技术领域,尤其涉及一种下行功率分配参数的通知方法及装置。The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for notifying a downlink power allocation parameter.

背景技术Background technique

在现有LTE系统中,基站通过向终端下发参考信号来测量信道状态,其中参考信号包括公共参考信号(Common Reference Signal,CRS)和信道状态信息参考信号(ChannelState Information Reference Signal,CSI-RS)。终端根据实际接收到的经过无线信道衰减后的CRS或者CSI-RS,与原始CRS或者CSI-RS进行比较,从而获得信道状态信息。In an existing LTE system, a base station measures a channel state by transmitting a reference signal to a terminal, where the reference signal includes a Common Reference Signal (CRS) and a Channel State Information Reference Signal (CSI-RS). . The terminal compares with the original CRS or CSI-RS according to the actually received CRS or CSI-RS after the radio channel attenuation, thereby obtaining channel state information.

然而,在基站向终端下发CRS或者CSI-RS时,由于CRS或者CSI-RS在整个系统带宽中的发射功率是恒定的,即对于现有的全频带仅有一个下行功率分配参数,CRS或者CSI-RS的发射功率不会随着频带的变化而变化,因此就会导致小区之间的CRS或者CSI-RS之间出现比较强的小区间参考信号的干扰,进而降低了系统的频谱效率。However, when the base station sends a CRS or a CSI-RS to the terminal, since the transmission power of the CRS or the CSI-RS in the entire system bandwidth is constant, that is, there is only one downlink power allocation parameter for the existing full frequency band, CRS or The transmit power of the CSI-RS does not change with the change of the frequency band, and thus the interference between the CRS or the CSI-RS between the cells is relatively strong, thereby reducing the spectrum efficiency of the system.

发明内容Summary of the invention

本发明的实施例提供一种下行功率分配参数的通知方法及装置,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。Embodiments of the present invention provide a method and apparatus for notifying a downlink power allocation parameter, which can reduce interference of reference signals between cells, thereby improving spectrum efficiency of the system.

第一方面,本发明实施例提供一种下行功率分配参数的通知方法,包括:In a first aspect, an embodiment of the present invention provides a method for notifying a downlink power allocation parameter, including:

向终端发送频带特定的下行功率分配参数,以便所述终端根据所述频带特定的下行功率分配参数获得信道状态信息,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;Transmitting a frequency band-specific downlink power allocation parameter to the terminal, so that the terminal obtains channel state information according to the frequency band-specific downlink power allocation parameter, where the frequency band-specific downlink power allocation parameter includes N parameters, where the N parameters are respectively Corresponding to N frequency bands, the N is greater than or equal to 2;

接收所述终端发送的所述信道状态信息。Receiving the channel state information sent by the terminal.

在第一种可能的实施方式中,结合第一方面,In a first possible implementation, in combination with the first aspect,

所述N个参数为第一类参数;The N parameters are first type parameters;

所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit.

在第二种可能的实施方式中,结合第一方面中第一种可能的实施方式,所述N个参数包括所述第一类参数和第二类参数;In a second possible implementation manner, in combination with the first possible implementation manner of the first aspect, the N parameters include the first type parameter and the second type parameter;

所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first type on the first frequency band a ratio of a ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type parameter is the second on the first frequency band a ratio of the ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first type on the first frequency band a ratio of a parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

在第三种可能的实施方式中,结合第一方面或者结合第一方面中第二种可能的实施方式,所述N个频带中任两个频带在频域上部分重叠或者不重叠。In a third possible implementation, in combination with the first aspect or in combination with the second possible implementation of the first aspect, any two of the N frequency bands partially overlap or do not overlap in the frequency domain.

在第四种可能的实施方式中,结合第一方面或者结合第一方面中第三种可能的实施方式,In a fourth possible implementation, in combination with the first aspect or in combination with the third possible implementation of the first aspect,

所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands occupies a part of a bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or

所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands occupies the entire bandwidth of the carrier when the base station transmits the reference signal;

所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS.

在第五种可能的实施方式中,结合第一方面中任一种可能的实施方式,所述向终端发送频带特定的下行功率分配参数,包括:In a fifth possible implementation manner, in combination with any one of the foregoing possible implementation manners, the sending, to the terminal, the frequency band-specific downlink power allocation parameter includes:

向终端发送无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。And transmitting, to the terminal, a radio resource control protocol (RRC) signaling, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

在第六种可能的实施方式中,结合第一方面中任一种可能的实施方式,在所述向终端发送频带特定的下行功率分配参数之后,所述接收所述终端发送的所述信道状态信息之前,还包括:In a sixth possible implementation, in combination with any one of the foregoing possible implementation manners, after the transmitting the frequency band-specific downlink power allocation parameter to the terminal, the receiving the channel state sent by the terminal Before the information, it also includes:

在所述N个频带上向所述终端发送参考信号,其中,所述N个频带中每个频带上发送的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。Transmitting a reference signal to the terminal on the N frequency bands, wherein a transmit power of the reference signal transmitted on each of the N frequency bands corresponds to the frequency band-specific downlink of each frequency band A power allocation parameter, the reference signal comprising a CRS or a CSI-RS.

第二方面,本发明实施例提供一种下行功率分配参数的通知方法,包括:In a second aspect, an embodiment of the present invention provides a method for notifying a downlink power allocation parameter, including:

接收基站发送的频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;Receiving a frequency band-specific downlink power allocation parameter sent by the base station, where the frequency band-specific downlink power allocation parameter includes N parameters, the N parameters respectively corresponding to N frequency bands, and the N is greater than or equal to 2;

根据所述频带特定的下行功率分配参数获得信道状态信息;Obtaining channel state information according to the frequency band specific downlink power allocation parameter;

将所述信道状态信息发送给所述基站。Transmitting the channel state information to the base station.

在第一种可能的实施方式中,结合第二方面,In a first possible implementation, in combination with the second aspect,

所述N个参数为第一类参数;The N parameters are first type parameters;

所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit.

在第二种可能的实施方式中,结合第二方面中第一种可能的实施方式,In a second possible implementation, in combination with the first possible implementation of the second aspect,

所述N个参数包括所述第一类参数和第二类参数;The N parameters include the first type parameter and the second type parameter;

所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first type on the first frequency band a ratio of a ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type parameter is the second on the first frequency band a ratio of the ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first type on the first frequency band a ratio of a parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

在第三种可能的实施方式中,结合第二方面中第一种可能的实施方式,在所述接收基站发送的至少两个频带特定的下行功率分配参数之后,还包括:In a third possible implementation, in combination with the first possible implementation manner of the second aspect, after the receiving, by the receiving base station, the at least two frequency band-specific downlink power allocation parameters, the method further includes:

在所述N个频带上接收所述基站发送的参考信号,所述参考信号包括公共参考信号CRS或信道状态信息参考信号CSI-RS;Receiving, by the N frequency bands, a reference signal sent by the base station, where the reference signal includes a common reference signal CRS or a channel state information reference signal CSI-RS;

根据所述参考信号获得初始信道状态信息;Obtaining initial channel state information according to the reference signal;

所述根据所述下行功率分配参数获得信道状态信息,包括:Obtaining channel state information according to the downlink power allocation parameter includes:

根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。And adjusting the initial channel state information according to the first ratio parameter or the second ratio parameter to obtain channel state information after the adjustment.

在第四种可能的实施方式中,结合第二方面中第二种可能的实施方式,在所述接收基站发送的频带特定的下行功率分配参数之后,还包括:In a fourth possible implementation, in combination with the second possible implementation manner of the second aspect, after the receiving the frequency band-specific downlink power allocation parameter sent by the base station, the method further includes:

在所述N个频带上接收所述基站发送的参考信号,所述参考信号包括公共参考信号CRS或信道状态信息参考信号CSI-RS;Receiving, by the N frequency bands, a reference signal sent by the base station, where the reference signal includes a common reference signal CRS or a channel state information reference signal CSI-RS;

根据所述参考信号获得初始信道状态信息;Obtaining initial channel state information according to the reference signal;

所述根据所述下行功率分配参数获得信道状态信息,包括:Obtaining channel state information according to the downlink power allocation parameter includes:

根据所述第二类参数计算获得所述第一比值参数或者所述第二比值参数;Obtaining the first ratio parameter or the second ratio parameter according to the second type parameter calculation;

根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。And adjusting the initial channel state information according to the first ratio parameter or the second ratio parameter to obtain channel state information after the adjustment.

在第五种可能的实施方式中,结合第二方面或者结合第二方面中第二种可能的实施方式,In a fifth possible implementation, in combination with the second aspect or in combination with the second possible implementation of the second aspect,

所述N个频带中任意两个频带在频域上部分重叠或者不重叠。Any two of the N frequency bands partially overlap or do not overlap in the frequency domain.

在第六种可能的实施方式中,结合第二方面中第五种可能的实施方式,In a sixth possible implementation, in combination with the fifth possible implementation of the second aspect,

所述N个频带中每一个频带在所述基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands occupies a part of a bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or

所述N个频带中每一个频带在所述基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands occupies the entire bandwidth of the carrier when the base station transmits the reference signal;

所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS.

在第七种可能的实施方式中,结合第二方面中任一种可能的实施方式,所述接收基站发送的频带特定的下行功率分配参数,包括:In a seventh possible implementation manner, in combination with any one of the possible implementation manners of the second aspect, the receiving, by the receiving base station, the frequency band-specific downlink power allocation parameter includes:

接收基站发送的无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Receiving radio resource control protocol RRC signaling sent by the base station, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

第三方面,本发明实施例提供一种下行功率分配参数的通知装置,包括:In a third aspect, an embodiment of the present invention provides a notification device for a downlink power allocation parameter, including:

发送单元,用于向终端发送频带特定的下行功率分配参数,以便所述终端根据所述频带特定的下行功率分配参数获得信道状态信息,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;a sending unit, configured to send a frequency band-specific downlink power allocation parameter to the terminal, so that the terminal obtains channel state information according to the frequency band-specific downlink power allocation parameter, where the frequency band-specific downlink power allocation parameter includes N parameters, The N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2;

接收单元,用于接收所述终端发送的所述信道状态信息。And a receiving unit, configured to receive the channel state information sent by the terminal.

在第一种可能的实施方式中,结合第三方面,In a first possible implementation, in combination with the third aspect,

所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;The N parameters of the frequency band-specific downlink power allocation parameters sent by the sending unit are first type parameters;

所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit.

在第二种可能的实施方式中,结合第三方面中第一种可能的实施方式,所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个参数包括所述第一类参数和第二类参数;In a second possible implementation manner, in combination with the first possible implementation manner of the third aspect, the N parameters of the frequency band-specific downlink power allocation parameters sent by the sending unit include the first Class parameters and second class parameters;

所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first type on the first frequency band a ratio of a ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type parameter is the second on the first frequency band a ratio of the ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first type on the first frequency band a ratio of a parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

在第三种可能的实施方式中,结合第三方面或者结合第三方面中第二种可能的实施方式,所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。In a third possible implementation, in combination with the third aspect or the second possible implementation manner of the third aspect, the N frequency bands of the frequency band-specific downlink power allocation parameters sent by the sending unit The two of the two frequency bands partially overlap or do not overlap in the frequency domain.

在第四种可能的实施方式中,结合第三方面或者结合第三方面中第三种可能的实施方式,In a fourth possible implementation, in combination with the third aspect or in combination with the third possible implementation of the third aspect,

所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the sending unit occupies a partial bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or

所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the sending unit occupies the entire bandwidth of the carrier when the base station transmits the reference signal;

所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS.

在第五种可能的实施方式中,结合第三方面中任一种可能的实施方式,所述发送单元,用于:In a fifth possible implementation, in combination with any one of the possible implementations of the third aspect, the sending unit is configured to:

向终端发送无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。And transmitting, to the terminal, a radio resource control protocol (RRC) signaling, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

在第六种可能的实施方式中,结合第三方面中任一种可能的实施方式,所述发送单元,还用于:In a sixth possible implementation, in combination with any of the possible implementations of the third aspect, the sending unit is further configured to:

在所述N个频带上向所述终端发送参考信号,其中,所述N个频带中每个频带上发送的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。Transmitting a reference signal to the terminal on the N frequency bands, wherein a transmit power of the reference signal transmitted on each of the N frequency bands corresponds to the frequency band-specific downlink of each frequency band A power allocation parameter, the reference signal comprising a CRS or a CSI-RS.

第四方面,本发明实施例提供一种基站,包括:In a fourth aspect, an embodiment of the present invention provides a base station, including:

存储器,用于存储包括程序例程的信息;a memory for storing information including program routines;

处理器,用于与存储器、发送器和接收器耦合,用于控制所述程序例程的执行;a processor for coupling with a memory, a transmitter, and a receiver for controlling execution of the program routine;

发送器,用于向终端发送频带特定的下行功率分配参数,以便所述终端根据所述频带特定的下行功率分配参数获得信道状态信息,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;a transmitter, configured to send a frequency band-specific downlink power allocation parameter to the terminal, so that the terminal obtains channel state information according to the frequency band-specific downlink power allocation parameter, where the frequency band-specific downlink power allocation parameter includes N parameters, The N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2;

接收器,用于接收所述终端发送的所述信道状态信息。And a receiver, configured to receive the channel state information sent by the terminal.

在第一种可能的实施方式中,结合第四方面,In a first possible implementation, in combination with the fourth aspect,

所述发送器发送的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;The N parameters of the frequency band-specific downlink power allocation parameters sent by the transmitter are first type parameters;

所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit.

在第二种可能的实施方式中,结合第四方面中第一种可能的实施方式,所述发送器发送的所述频带特定的下行功率分配参数中的所述N个参数包括所述第一类参数和第二类参数;In a second possible implementation manner, in combination with the first possible implementation manner of the fourth aspect, the N parameters of the frequency band-specific downlink power allocation parameters sent by the transmitter include the first Class parameters and second class parameters;

所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first type on the first frequency band a ratio of a ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type parameter is the second on the first frequency band a ratio of the ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first type on the first frequency band a ratio of a parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

在第三种可能的实施方式中,结合第四方面或者结合第四方面中第二种可能的实施方式,In a third possible implementation, in combination with the fourth aspect or in combination with the second possible implementation of the fourth aspect,

所述发送器发送的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Any two of the N frequency bands of the frequency band-specific downlink power allocation parameters sent by the transmitter partially overlap or do not overlap in the frequency domain.

在第四种可能的实施方式中,结合第四方面或者结合第四方面中第三种可能的实施方式,In a fourth possible implementation, in combination with the fourth aspect or in combination with the third possible implementation of the fourth aspect,

所述发送器发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the transmitter occupies a partial bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or

所述发送器发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the transmitter occupies the entire bandwidth of the carrier when the base station transmits the reference signal;

所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS.

在第五种可能的实施方式中,结合第四方面中任一种可能的实施方式,所述发送器,用于:In a fifth possible implementation, in combination with any of the possible implementations of the fourth aspect, the transmitter is configured to:

向终端发送无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。And transmitting, to the terminal, a radio resource control protocol (RRC) signaling, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

在第六种可能的实施方式中,结合第四方面中任一种可能的实施方式,,所述发送器,还用于:In a sixth possible implementation, in combination with any of the possible implementations of the fourth aspect, the transmitter is further configured to:

在所述N个频带上向所述终端发送参考信号,其中,所述N个频带中每个频带上发送的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。Transmitting a reference signal to the terminal on the N frequency bands, wherein a transmit power of the reference signal transmitted on each of the N frequency bands corresponds to the frequency band-specific downlink of each frequency band A power allocation parameter, the reference signal comprising a CRS or a CSI-RS.

第五方面,本发明实施例提供一种下行功率分配参数的通知装置,包括:In a fifth aspect, an embodiment of the present invention provides a notification device for a downlink power allocation parameter, including:

接收单元,用于接收基站发送的频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;a receiving unit, configured to receive a frequency-specific downlink power allocation parameter sent by the base station, where the frequency-specific downlink power allocation parameter includes N parameters, where the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2;

获得单元,用于根据接收单元接收的所述频带特定的下行功率分配参数获得信道状态信息;And an obtaining unit, configured to obtain channel state information according to the frequency band-specific downlink power allocation parameter received by the receiving unit;

发送单元,用于将获得单元获得的所述信道状态信息发送给所述基站。And a sending unit, configured to send the channel state information obtained by the obtaining unit to the base station.

在第一种可能的实施方式中,结合第五方面,In a first possible implementation, in combination with the fifth aspect,

所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;The N parameters in the frequency band-specific downlink power allocation parameters received by the receiving unit are first type parameters;

所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit.

在第二种可能的实施方式中,结合第五方面中第一种可能的实施方式,所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个参数包括所述第一类参数和第二类参数;In a second possible implementation manner, in combination with the first possible implementation manner of the fifth aspect, the N parameters of the frequency band specific downlink power allocation parameters received by the receiving unit include the first Class parameters and second class parameters;

所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first type on the first frequency band a ratio of a ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type parameter is the second on the first frequency band a ratio of the ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first type on the first frequency band a ratio of a parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

在第三种可能的实施方式中,结合第五方面中第二种可能的实施方式,In a third possible implementation manner, in combination with the second possible implementation manner of the fifth aspect,

所述接收单元,还用于在所述N个频带上接收所述基站发送的参考信号,所述参考信号包括公共参考信号CRS或信道状态信息参考信号CSI-RS;The receiving unit is further configured to receive, by using the N frequency bands, a reference signal that is sent by the base station, where the reference signal includes a common reference signal CRS or a channel state information reference signal CSI-RS;

所述获得单元,还用于根据所述参考信号获得初始信道状态信息;The obtaining unit is further configured to obtain initial channel state information according to the reference signal;

所述获得单元,用于根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。The obtaining unit is configured to adjust the initial channel state information according to the first ratio parameter or the second ratio parameter, and obtain channel state information after the adjustment.

在第四种可能的实施方式中,结合第五方面中第三种可能的实施方式,所述第一获得模块,用于:In a fourth possible implementation, in combination with the third possible implementation manner of the fifth aspect, the first obtaining module is configured to:

所述接收单元,还用于在所述N个频带上接收所述基站发送的参考信号,所述参考信号包括公共参考信号CRS或信道状态信息参考信号CSI-RS;The receiving unit is further configured to receive, by using the N frequency bands, a reference signal that is sent by the base station, where the reference signal includes a common reference signal CRS or a channel state information reference signal CSI-RS;

所述获得单元,还用于根据所述参考信号获得初始信道状态信息;The obtaining unit is further configured to obtain initial channel state information according to the reference signal;

所述获得单元,包括:The obtaining unit includes:

第一获得模块,用于根据所述第二类参数计算获得所述第一比值参数或者所述第二比值参数;a first obtaining module, configured to obtain the first ratio parameter or the second ratio parameter according to the second type parameter calculation;

第二获得模块,用于根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。And a second obtaining module, configured to adjust the initial channel state information according to the first ratio parameter or the second ratio parameter, to obtain channel state information after the adjustment.

在第五种可能的实施方式中,结合第五方面或者结合第五方面中第二种可能的实施方式,In a fifth possible implementation, in combination with the fifth aspect or in combination with the second possible implementation of the fifth aspect,

所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Any two of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiving unit partially overlap or do not overlap in the frequency domain.

在第六种可能的实施方式中,结合第五方面或者结合第五方面中第五种可能的实施方式,In a sixth possible implementation, in combination with the fifth aspect or in combination with the fifth possible implementation of the fifth aspect,

所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在所述基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiving unit occupies a part of a bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or

所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在所述基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiving unit occupies the entire bandwidth of the carrier when the base station transmits the reference signal;

所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS.

在第七种可能的实施方式中,结合第五方面中任一种可能的实施方式,所述接收单元,用于:In a seventh possible implementation, in combination with any one of the possible implementations of the fifth aspect, the receiving unit is configured to:

接收基站发送的无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Receiving radio resource control protocol RRC signaling sent by the base station, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

第六方面,本发明实施例提供一种终端,包括:In a sixth aspect, an embodiment of the present invention provides a terminal, including:

接收器,用于接收基站发送的频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;a receiver, configured to receive a frequency-specific downlink power allocation parameter sent by the base station, where the frequency-specific downlink power allocation parameter includes N parameters, where the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2;

存储器,用于存储包括程序例程的信息;a memory for storing information including program routines;

处理器,用于与存储器、发送器和接收器耦合,用于控制所述程序例程的执行,具体用于:根据接收器接收到的所述频带特定的下行功率分配参数获得信道状态信息;a processor, configured to be coupled to the memory, the transmitter, and the receiver, for controlling execution of the program routine, specifically: obtaining channel state information according to the frequency band-specific downlink power allocation parameter received by the receiver;

发送器,用于将处理器获得的所述信道状态信息发送给所述基站。And a transmitter, configured to send the channel state information obtained by the processor to the base station.

在第一种可能的实施方式中,结合第六方面,In a first possible implementation, in combination with the sixth aspect,

所述接收器接收的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;The N parameters of the frequency band-specific downlink power allocation parameters received by the receiver are first type parameters;

所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit.

在第二种可能的实施方式中,结合第六方面中第一种可能的实施方式,In a second possible implementation, in combination with the first possible implementation of the sixth aspect,

所述接收器接收的所述频带特定的下行功率分配参数中的所述N个参数包括第一类参数和第二类参数;The N parameters of the frequency band-specific downlink power allocation parameters received by the receiver include a first type parameter and a second type parameter;

所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first type on the first frequency band a ratio of a ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type parameter is the second on the first frequency band a ratio of the ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first type on the first frequency band a ratio of a parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

在第三种可能的实施方式中,结合第六方面中第一种可能的实施方式,In a third possible implementation, in combination with the first possible implementation of the sixth aspect,

所述接收器,还用于在所述N个频带上接收所述基站发送的参考信号,所述参考信号包括公共参考信号CRS或信道状态信息参考信号CSI-RS;The receiver is further configured to receive, by using the N frequency bands, a reference signal that is sent by the base station, where the reference signal includes a common reference signal CRS or a channel state information reference signal CSI-RS;

所述处理器,还用于根据所述参考信号获得初始信道状态信息;The processor is further configured to obtain initial channel state information according to the reference signal;

所述处理器,用于:The processor is configured to:

根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。And adjusting the initial channel state information according to the first ratio parameter or the second ratio parameter to obtain channel state information after the adjustment.

在第四种可能的实施方式中,结合第六方面中第二种可能的实施方式,所述接收器,还用于在所述N个频带上接收所述基站发送的参考信号,所述参考信号包括公共参考信号CRS或信道状态信息参考信号CSI-RS;In a fourth possible implementation, in combination with the second possible implementation manner of the sixth aspect, the receiver is further configured to receive a reference signal sent by the base station on the N frequency bands, where the reference is The signal includes a common reference signal CRS or a channel state information reference signal CSI-RS;

所述处理器,还用于根据所述参考信号获得初始信道状态信息;The processor is further configured to obtain initial channel state information according to the reference signal;

所述处理器,用于:The processor is configured to:

根据所述第二类参数计算获得所述第一比值参数或者所述第二比值参数;Obtaining the first ratio parameter or the second ratio parameter according to the second type parameter calculation;

根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。And adjusting the initial channel state information according to the first ratio parameter or the second ratio parameter to obtain channel state information after the adjustment.

在第五种可能的实施方式中,结合第六方面或者结合第六方面中第二种可能的实施方式,In a fifth possible implementation, in combination with the sixth aspect or in combination with the second possible implementation of the sixth aspect,

所述接收器接收的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Any two of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiver partially overlap or do not overlap in the frequency domain.

在第六种可能的实施方式中,结合第六方面或者结合第六方面中第五种可能的实施方式,In a sixth possible implementation, in combination with the sixth aspect or in combination with the fifth possible implementation of the sixth aspect,

所述接收器接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在所述基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands in the frequency band-specific downlink power allocation parameter received by the receiver occupies a partial bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or

所述接收器接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在所述基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiver occupies the entire bandwidth of the carrier when the base station transmits the reference signal;

所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS.

在第七种可能的实施方式中,结合第六方面中任一种可能的实施方式所述接收器,用于:In a seventh possible implementation, the receiver of any one of the possible implementations of the sixth aspect is used for:

接收基站发送的无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Receiving radio resource control protocol RRC signaling sent by the base station, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

本发明实施例提供一种下行功率分配参数的通知方法,通过向终端发送频带特定的下行功率分配参数,以便所述终端根据所述频带特定的下行功率分配参数获得信道状态信息,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;接收所述终端发送的所述信道状态信息。与现有技术中由于CRS或者CSI-RS在整个系统带宽中的发射功率是恒定的,即对于现有的全频带仅有一个下行功率分配参数,CRS或者CSI-RS的发射功率不会随着频带的变化而变化,因此就会导致小区之间的CRS或者CSI-RS之间出现比较强的小区间参考信号的干扰,进而降低了系统的频谱效率相比,本发明实施例通过发送频带特定的下行功率分配参数,进而可以实现不同的频带采用不同的下行功率分配参数,即不同的频带采用不同的发射功率,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。An embodiment of the present invention provides a method for notifying a downlink power allocation parameter, by transmitting a frequency band-specific downlink power allocation parameter to a terminal, so that the terminal obtains channel state information according to the frequency band-specific downlink power allocation parameter, where the frequency band is specific. The downlink power allocation parameter includes N parameters, and the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2; and the channel state information sent by the terminal is received. Compared with the prior art, since the transmit power of the CRS or the CSI-RS in the entire system bandwidth is constant, that is, there is only one downlink power allocation parameter for the existing full frequency band, the transmit power of the CRS or CSI-RS does not follow The change of the frequency band changes, so that a relatively strong inter-cell reference signal interference occurs between CRSs or CSI-RSs between cells, thereby reducing the spectral efficiency of the system. Compared with the embodiment of the present invention, the transmission band is specific. The downlink power allocation parameters can further implement different downlink power allocation parameters for different frequency bands, that is, different frequency bands use different transmission powers, which can reduce interference of reference signals between cells, thereby improving spectrum efficiency of the system.

附图说明DRAWINGS

为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

图1为本发明一个实施例提供的一种下行功率分配参数的通知方法的流程图;FIG. 1 is a flowchart of a method for notifying a downlink power allocation parameter according to an embodiment of the present invention;

图2为本发明一个实施例提供的基站服务范围内小区的示意图;2 is a schematic diagram of a cell in a service range of a base station according to an embodiment of the present invention;

图3A为本发明一个实施例提供的A类小区的频带与参考信号的发射功率关系的示意图;3A is a schematic diagram of a relationship between a frequency band of a class A cell and a transmit power of a reference signal according to an embodiment of the present invention;

图3B为本发明一个实施例提供的B类小区的频带与参考信号的发射功率关系的示意图;3B is a schematic diagram of a relationship between a frequency band of a class B cell and a transmit power of a reference signal according to an embodiment of the present invention;

图3C为本发明一个实施例提供的C类小区的频带与参考信号的发射功率关系的示意图;3C is a schematic diagram of a relationship between a frequency band of a class C cell and a transmit power of a reference signal according to an embodiment of the present invention;

图4为本发明另一个实施例提供的一种下行功率分配参数的通知方法的流程图;FIG. 4 is a flowchart of a method for notifying a downlink power allocation parameter according to another embodiment of the present invention;

图5为本发明另一个实施例提供的另一种下行功率分配参数的通知方法的流程图;FIG. 5 is a flowchart of another method for notifying a downlink power allocation parameter according to another embodiment of the present invention;

图6为本发明另一个实施例提供的一种下行功率分配参数的通知装置的框图;FIG. 6 is a block diagram of a notification device for downlink power allocation parameters according to another embodiment of the present invention;

图7为本发明另一个实施例提供的一种基站的框图;FIG. 7 is a block diagram of a base station according to another embodiment of the present invention;

图8为本发明另一个实施例提供的一种下行功率分配参数的通知装置的框图;FIG. 8 is a block diagram of a notification device for downlink power allocation parameters according to another embodiment of the present invention;

图9为本发明另一个实施例提供的一种下行功率分配参数的通知装置的框图;FIG. 9 is a block diagram of a notification device for downlink power allocation parameters according to another embodiment of the present invention;

图10为本发明另一个实施例提供的一种终端的框图。FIG. 10 is a block diagram of a terminal according to another embodiment of the present invention.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

本发明实施例提供一种下行功率分配参数的通知方法,该方法的执行主体为基站,如图1所示,该方法包括:An embodiment of the present invention provides a method for notifying a downlink power allocation parameter. The method is performed by a base station. As shown in FIG. 1 , the method includes:

步骤101,基站向终端发送频带特定的下行功率分配参数,以便所述终端根据所述频带特定的下行功率分配参数获得信道状态信息,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;Step 101: The base station sends a frequency band-specific downlink power allocation parameter to the terminal, so that the terminal obtains channel state information according to the frequency band-specific downlink power allocation parameter, where the frequency band-specific downlink power allocation parameter includes N parameters, N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2;

可选的,终端可以为基站服务范围内的任一个终端。Optionally, the terminal may be any terminal in the range of service of the base station.

可选的,不同的下行功率分配参数与不同的频带一一对应。所述N个参数都为第一类参数;或者,所述N个参数包括第一类参数和第二类参数。可选的,可以根据第二类参数获得第一类参数,根据第一类参数获得信道状态信息,或者直接根据第一类参数获得信道状态信息。Optionally, different downlink power allocation parameters are in one-to-one correspondence with different frequency bands. The N parameters are all the first type of parameters; or the N parameters include the first type of parameters and the second type of parameters. Optionally, the first type of parameters may be obtained according to the second type of parameters, the channel state information is obtained according to the first type of parameters, or the channel state information is obtained directly according to the first type of parameters.

需要说明的是,下行功率分配参数中除包括的N个参数外,还可以包括其他的参数,此参数不是频带特定的参数。可以理解的,此参数为全频带的参数,不因为频带的不同而不同。It should be noted that, in addition to the N parameters included in the downlink power allocation parameter, other parameters may be included, and the parameter is not a band-specific parameter. It can be understood that this parameter is a parameter of the full frequency band and does not vary due to the frequency band.

例如,下行功率分配参数包括2个参数,分别为参数1和参数2,其中,参数1和参数2为第一类参数。参数1对应频带1,参数2对应频带2,并且频带1与频带2不同。For example, the downlink power allocation parameter includes two parameters, namely parameter 1 and parameter 2, wherein parameter 1 and parameter 2 are the first type of parameters. Parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, and band 1 is different from band 2.

例如,下行功率分配参数包括3个参数,分别为参数1、参数2和参数3,其中,参数1和参数2为第一类参数,参数3为第二类参数。参数1对应频带1,参数2对应频带2,参数3对应频带3,并且频带1、频带2与频带3不同。或者,参数1为第一类参数,参数2和参数3为第二类参数。参数1对应频带1,参数2对应频带2,参数3对应频带3,并且频带1、频带2与频带3不同。For example, the downlink power allocation parameter includes three parameters, namely, parameter 1, parameter 2, and parameter 3, wherein parameter 1 and parameter 2 are the first type parameter, and parameter 3 is the second type parameter. Parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, parameter 3 corresponds to band 3, and band 1, band 2 and band 3 are different. Alternatively, parameter 1 is the first type of parameter, and parameter 2 and parameter 3 are the second type of parameter. Parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, parameter 3 corresponds to band 3, and band 1, band 2 and band 3 are different.

本实施例中,在基站服务范围内的任一个小区中,在不同的频带上基站发射参考信号的发射功率不同。例如,如图2所示,基站服务范围内的小区以六边形表示,每个六边形表示一个小区,可以将每一个小区分为三类小区,例如A类小区、B类小区以及C类小区。可选的,按照大尺度衰落特征,将每个小区划分为小区边缘区域和小区中心区域。例如,当大尺度衰落超过预设门限的小区区域属于小区边缘区域,在图2中以阴影区域表示;当大尺度衰落低于预设门限的小区区域属于小区中心区域,在图2中以白色区域表示。其中,大尺度衰落通常是指由于各种遮挡所引起的信号衰减,其分布可认为是对数正态,它是缓变的。In this embodiment, in any cell within the service range of the base station, the transmit power of the base station transmitting the reference signal is different in different frequency bands. For example, as shown in FIG. 2, cells in the service area of the base station are represented by hexagons, and each hexagon represents one cell, and each cell can be divided into three types of cells, for example, a class A cell, a class B cell, and C. Class cell. Optionally, each cell is divided into a cell edge area and a cell center area according to a large-scale fading feature. For example, when the cell area where the large-scale fading exceeds the preset threshold belongs to the cell edge area, it is represented by a shaded area in FIG. 2; when the large-scale fading is lower than the preset threshold, the cell area belongs to the central area of the cell, and is white in FIG. Regional representation. Among them, large-scale fading usually refers to signal attenuation caused by various occlusions, and its distribution can be considered as a lognormal, which is slowly changing.

可选的,对于小区边缘区域采用频带1发射参考信号,对于小区中心区域采用频带2发射参考信号。并且在频带1发射的参考信号的功率较高,在频带2发射的参考信号的功率较低,参考信号指公共参考信号CRS和/或信道状态信息参考信号CSI-RS。另外,对于一个小区内的三类小区的小区边缘区域也可以采用不同的频带,以避免小区间的参考新哈干扰。如图3A所示的A类小区、如图3B所示的B类小区以及如图3C所示的C类小区,坐标轴的横轴表示频带,纵轴表示参考信号的发射功率,其中,阴影区域表示频带1,白色区域表示频带2。需要说明的是,图3A、图3B、图3C仅为示意图。Optionally, a frequency band 1 transmission reference signal is used for the cell edge region, and a frequency band 2 transmission reference signal is used for the cell center region. And the power of the reference signal transmitted in the band 1 is higher, the power of the reference signal transmitted in the band 2 is lower, and the reference signal refers to the common reference signal CRS and/or the channel state information reference signal CSI-RS. In addition, different frequency bands may be used for the cell edge regions of the three types of cells in one cell to avoid reference new interference between cells. As shown in FIG. 3A, the class A cell, the class B cell as shown in FIG. 3B, and the class C cell as shown in FIG. 3C, the horizontal axis of the coordinate axis represents the frequency band, and the vertical axis represents the transmission power of the reference signal, wherein the shadow The area represents band 1, and the white area represents band 2. It should be noted that FIGS. 3A, 3B, and 3C are only schematic views.

终端接收到基站发送的至少两个频带特定的下行功率分配参数之后,可以根据下行功率分配参数确定EPREPDSCH与EPRECRS的比值或EPREPDSCH与EPRECSI-RS的比值,所述EPREDSC(Energy Per Resource Element)表示每个物理下行共享信道(Physical DownlinkShared Channel,PDSCH)资源单元上的能量,所述EPRECRS表示每个CRS资源单元上的能量,所述EPRECSI-RS表示每个CSI-RS资源单元上的能量,并且根据EPREPDSCH与EPRECRS的比值或EPREPDSCH与EPRECSI-RS的比值,终端获得信道状态信息。After receiving the at least two frequency band-specific downlink power allocation parameters sent by the base station, the terminal may determine a ratio of the EPRE PDSCH to the EPRE CRS or a ratio of the EPRE PDSCH to the EPRE CSI-RS according to the downlink power allocation parameter, where the EPRE DSC (Energy Per Resource Element) represents energy on each Physical Downlink Shared Channel (PDSCH) resource unit, the EPRE CRS represents energy on each CRS resource unit, and the EPRE CSI-RS represents each CSI-RS resource. The energy on the unit, and based on the ratio of the EPRE PDSCH to the EPRE CRS or the ratio of the EPRE PDSCH to the EPRE CSI-RS , the terminal obtains channel state information.

步骤102,所述基站接收所述终端发送的所述信道状态信息。Step 102: The base station receives the channel state information sent by the terminal.

基站可以通过接收信道质量指示(Channel Quality Indicator,CQI)上报的信息获得信道状态信息。The base station can obtain channel state information by receiving information reported by a Channel Quality Indicator (CQI).

本发明实施例提供一种下行功率分配参数的通知方法,通过向终端发送频带特定的下行功率分配参数,以便所述终端根据所述频带特定的下行功率分配参数获得信道状态信息,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;接收所述终端发送的所述信道状态信息。与现有技术中由于CRS或者CSI-RS在整个系统带宽中的发射功率是恒定的,即对于现有的全频带仅有一个下行功率分配参数,CRS或者CSI-RS的发射功率不会随着频带的变化而变化,因此就会导致小区之间的CRS或者CSI-RS之间出现比较强的小区间参考信号的干扰,进而降低了系统的频谱效率相比,本发明实施例通过发送频带特定的下行功率分配参数,进而可以实现不同的频带采用不同的下行功率分配参数,即不同的频带采用不同的发射功率,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。An embodiment of the present invention provides a method for notifying a downlink power allocation parameter, by transmitting a frequency band-specific downlink power allocation parameter to a terminal, so that the terminal obtains channel state information according to the frequency band-specific downlink power allocation parameter, where the frequency band is specific. The downlink power allocation parameter includes N parameters, and the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2; and the channel state information sent by the terminal is received. Compared with the prior art, since the transmit power of the CRS or the CSI-RS in the entire system bandwidth is constant, that is, there is only one downlink power allocation parameter for the existing full frequency band, the transmit power of the CRS or CSI-RS does not follow The change of the frequency band changes, so that a relatively strong inter-cell reference signal interference occurs between CRSs or CSI-RSs between cells, thereby reducing the spectral efficiency of the system. Compared with the embodiment of the present invention, the transmission band is specific. The downlink power allocation parameters can further implement different downlink power allocation parameters for different frequency bands, that is, different frequency bands use different transmission powers, which can reduce interference of reference signals between cells, thereby improving spectrum efficiency of the system.

本发明实施例提供一种下行功率分配参数的通知方法,如图4所示,该方法包括:An embodiment of the present invention provides a method for notifying a downlink power allocation parameter. As shown in FIG. 4, the method includes:

步骤401,终端接收基站发送的频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;Step 401: The terminal receives the frequency-specific downlink power allocation parameter sent by the base station, where the frequency-specific downlink power allocation parameter includes N parameters, where the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2;

可选的,终端可以为基站服务范围内的任一个终端。Optionally, the terminal may be any terminal in the range of service of the base station.

可选的,不同的下行功率分配参数与不同的频带一一对应。所述N个参数都为第一类参数;或者,所述N个参数包括第一类参数和第二类参数。可选的,可以根据第二类参数获得第一类参数,根据第一类参数获得信道状态信息,或者直接根据第一类参数获得信道状态信息。Optionally, different downlink power allocation parameters are in one-to-one correspondence with different frequency bands. The N parameters are all the first type of parameters; or the N parameters include the first type of parameters and the second type of parameters. Optionally, the first type of parameters may be obtained according to the second type of parameters, the channel state information is obtained according to the first type of parameters, or the channel state information is obtained directly according to the first type of parameters.

需要说明的是,下行功率分配参数中除包括的N个参数外,还可以包括其他的参数,此参数不是频带特定的参数。可以理解的,此参数为全频带的参数,不因为频带的不同而不同。It should be noted that, in addition to the N parameters included in the downlink power allocation parameter, other parameters may be included, and the parameter is not a band-specific parameter. It can be understood that this parameter is a parameter of the full frequency band and does not vary due to the frequency band.

例如,下行功率分配参数包括2个参数,分别为参数1和参数2,其中,参数1和参数2为第一类参数。参数1对应频带1,参数2对应频带2,并且频带1与频带2不同。For example, the downlink power allocation parameter includes two parameters, namely parameter 1 and parameter 2, wherein parameter 1 and parameter 2 are the first type of parameters. Parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, and band 1 is different from band 2.

例如,下行功率分配参数包括3个参数,分别为参数1、参数2和参数3,其中,参数1和参数2为第一类参数,参数3为第二类参数。参数1对应频带1,参数2对应频带2,参数3对应频带3,并且频带1、频带2与频带3不同。或者,参数1为第一类参数,参数2和参数3为第二类参数。参数1对应频带1,参数2对应频带2,参数3对应频带3,并且频带1、频带2与频带3不同。For example, the downlink power allocation parameter includes three parameters, namely, parameter 1, parameter 2, and parameter 3, wherein parameter 1 and parameter 2 are the first type parameter, and parameter 3 is the second type parameter. Parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, parameter 3 corresponds to band 3, and band 1, band 2 and band 3 are different. Alternatively, parameter 1 is the first type of parameter, and parameter 2 and parameter 3 are the second type of parameter. Parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, parameter 3 corresponds to band 3, and band 1, band 2 and band 3 are different.

本实施例中,在基站服务范围内的任一个小区中,在不同的频带上基站发射参考信号的发射功率不同,具体可参见附图1中步骤101中的描述,在此不再一一赘述。In this embodiment, the transmit power of the reference signal transmitted by the base station is different in different frequency bands in any of the cells in the service range of the base station. For details, refer to the description in step 101 in FIG. 1 , and details are not described herein again. .

步骤402,根据所述频带特定的下行功率分配参数获得信道状态信息;Step 402: Obtain channel state information according to the frequency band-specific downlink power allocation parameter.

本步骤包括:根据所述下行功率分配参数获得EPREPDSCH与EPRECRS的比值或者The step includes: obtaining a ratio of the EPRE PDSCH to the EPRE CRS according to the downlink power allocation parameter or

EPREPDSCH与EPRECSI-RS的比值,所述EPREPDSC表示每个物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示每个CRS资源单元上的能量,所述EPRECSI-RS表示每个CSI-RS资源单元上的能量;根据所述EPREPDSCH与EPRECRS的比值或者所述EPREPDSCH与EPRECSI-RS的比值,调整初始信道状态信息,获得调整之后的信道状态信息。Ratio of EPRE PDSCH to EPRE CSI-RS , the EPRE PDSC represents energy on each physical downlink shared channel PDSCH resource unit, the EPRE CRS represents energy on each CRS resource unit, and the EPRE CSI-RS represents each Energy on the CSI-RS resource unit; adjusting the initial channel state information according to the ratio of the EPRE PDSCH to the EPRE CRS or the ratio of the EPRE PDSCH to the EPRE CSI-RS , and obtaining the adjusted channel state information.

下行功率分配参数中的N个参数对应N个不同的频带,因此,N个不同的频带分别对应不同的信道状态信息。需要说明的是,根据频带特定的下行功率分配参数获得的信道状态信息为数据信道状态信息,而接收基站发送的频带特定的下行功率分配参数时采用的信道可以为公用信道。The N parameters in the downlink power allocation parameters correspond to N different frequency bands, and therefore, the N different frequency bands respectively correspond to different channel state information. It should be noted that the channel state information obtained according to the frequency band-specific downlink power allocation parameter is data channel state information, and the channel used when receiving the frequency band-specific downlink power allocation parameter sent by the base station may be a common channel.

需要说明的是,基站在向终端发送频带特定的下行功率分配参数之后,在所述N个频带上向所述终端发送参考信号,终端接收到基站发送的参考信号之后,终端根据实际接收到的经过无线信道衰减后的参考信号,与原始参考信号进行比较,从而获得初始信道状态信息。It should be noted that after transmitting the frequency band-specific downlink power allocation parameter to the terminal, the base station sends a reference signal to the terminal on the N frequency bands, and after receiving the reference signal sent by the base station, the terminal receives the reference signal according to the actual The reference signal after the attenuation of the wireless channel is compared with the original reference signal to obtain initial channel state information.

步骤403,将所述信道状态信息发送给所述基站。Step 403: Send the channel state information to the base station.

可选的,通过CQI上报信息将无线信道状态信息上报给基站。Optionally, the radio channel status information is reported to the base station by using the CQI reporting information.

本发明实施例提供一种下行功率分配参数的通知方法,通过接收基站发送的频带特定的下行功率分配参数;根据所述频带特定的下行功率分配参数获得信道状态信息;将所述信道状态信息发送给所述基站。与现有技术中由于CRS或者CSI-RS在整个系统带宽中的发射功率是恒定的,即对于现有的全频带仅有一个下行功率分配参数,CRS或者CSI-RS的发射功率不会随着频带的变化而变化,因此就会导致小区之间的CRS或者CSI-RS之间出现比较强的小区间参考信号的干扰,进而降低了系统的频谱效率相比,本发明实施例通过接收频带特定的下行功率分配参数,进而可以实现不同的频带采用不同的下行功率分配参数,即不同的频带采用不同的发射功率,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。An embodiment of the present invention provides a method for notifying a downlink power allocation parameter, by receiving a frequency band-specific downlink power allocation parameter sent by a base station, obtaining channel state information according to the frequency band-specific downlink power allocation parameter, and transmitting the channel state information. To the base station. Compared with the prior art, since the transmit power of the CRS or the CSI-RS in the entire system bandwidth is constant, that is, there is only one downlink power allocation parameter for the existing full frequency band, the transmit power of the CRS or CSI-RS does not follow The change of the frequency band changes, so that a relatively strong inter-cell reference signal interference occurs between CRSs or CSI-RSs between cells, thereby reducing the spectral efficiency of the system. Compared with the embodiment of the present invention, the receiving frequency band is specified. The downlink power allocation parameters can further implement different downlink power allocation parameters for different frequency bands, that is, different frequency bands use different transmission powers, which can reduce interference of reference signals between cells, thereby improving spectrum efficiency of the system.

本发明实施例提供一种下行功率分配参数的通知方法,如图5所示,该方法包括:An embodiment of the present invention provides a method for notifying a downlink power allocation parameter. As shown in FIG. 5, the method includes:

步骤501,基站向终端发送频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2。Step 501: The base station sends a frequency band-specific downlink power allocation parameter to the terminal, where the frequency band-specific downlink power allocation parameter includes N parameters, and the N parameters respectively correspond to N frequency bands, where the N is greater than or equal to 2.

可选的,所述N个参数可以全部为第一类参数。其中,所述第一类参数可以为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。需要说明的是,下行功率分配参数中除包括的N个参数外,还可以包括其他的参数,此参数不是频带特定的参数。可以理解的,此参数为全频带的参数,不因为频带的不同而不同。Optionally, the N parameters may all be the first type of parameters. The first type parameter may be a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , and the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, the EPRE CRS Representing energy on a common reference signal CRS resource unit; or, the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel The status information refers to the energy on the signal CSI-RS resource unit. It should be noted that, in addition to the N parameters included in the downlink power allocation parameter, other parameters may be included, and the parameter is not a band-specific parameter. It can be understood that this parameter is a parameter of the full frequency band and does not vary due to the frequency band.

例如,下行功率分配参数中包括参数1和参数2,其中参数1对应频带1,参数2对应频带2,并且频带1与频带2为不同的频带。For example, the downlink power allocation parameter includes parameter 1 and parameter 2, where parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, and band 1 and band 2 are different bands.

例如,下行功率分配参数中包括参数1、参数2和参数3,其中参数1对应频带1,参数2对应频带2,参数3对应频带3,并且频带1、频带2与频带3为不同的频带。For example, the downlink power allocation parameter includes parameter 1, parameter 2, and parameter 3, where parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, parameter 3 corresponds to band 3, and band 1, band 2, and band 3 are different bands.

可选的,所述N个参数包括所述第一类参数和第二类参数。其中,所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;Optionally, the N parameters include the first type parameter and the second type parameter. The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first frequency band Determining, by the first ratio parameter, a ratio of the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type of parameter is the same on the first frequency band a ratio of the second ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first number on the first frequency band a ratio of a parameter of the parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

例如,下行功率分配参数中包括参数1和参数4,其中,参数1为第一类参数,参数4为第二类参数。参数1对应频带1,参数4对应频带4,参数4为频带1上的参数1与频带4上的第一类参数的比值,即参数4为两个第一类参数之间比值的参数。或者参数1可以为第一比值参数,也可以为第二比值参数,另外,频带4对应的第一类参数为参数2,参数2可以为第以比值参数,也可以为第二比值参数,则参数4还可以为频带1上的参数1与频带,4上的第一比值参数或者第二比值参数的比值,或者参数4还可以为频带1上的第一比值参数与频带4上的第一比值参数或者第二比值参数的比值,或者,参数4还可以为频带1上的第二比值参数与频带4上的第一比值参数或者第二比值参数的比值。需要说明的是,下行功率分配参数中并不包括频带2对应的第一类参数。For example, the downlink power allocation parameter includes parameter 1 and parameter 4, where parameter 1 is a first type parameter and parameter 4 is a second type parameter. Parameter 1 corresponds to band 1, parameter 4 corresponds to band 4, and parameter 4 is the ratio of parameter 1 on band 1 to the first parameter on band 4, ie parameter 4 is a parameter for the ratio between the two first type parameters. Or the parameter 1 may be the first ratio parameter or the second ratio parameter. In addition, the first type parameter corresponding to the frequency band 4 is the parameter 2, and the parameter 2 may be the first ratio parameter or the second ratio parameter. The parameter 4 may also be the ratio of the parameter 1 on the band 1 to the first ratio parameter or the second ratio parameter on the frequency band 4, or the parameter 4 may also be the first ratio parameter on the band 1 and the first on the band 4. The ratio of the ratio parameter or the second ratio parameter, or parameter 4 may also be the ratio of the second ratio parameter on Band 1 to the first ratio parameter or the second ratio parameter on Band 4. It should be noted that the first type parameter corresponding to the frequency band 2 is not included in the downlink power allocation parameter.

例如,下行功率分配参数中包括参数1、参数2和参数4,其中,下行功率分配参数中包括2个第一类参数和1个第二类参数,即参数1、参数2为第一类参数,参数4为第二类参数。参数1对应频带1,参数2对应频带2,参数4对应频带4,参数4为频带1上的参数1与频带4上的第一类参数的比值,或者,参数4为频带2上的参数2与频带4上的第一类参数的比值。假设频带4对应的第一类参数为参数3。For example, the downlink power allocation parameter includes parameter 1, parameter 2, and parameter 4, wherein the downlink power allocation parameter includes two first type parameters and one second type parameter, that is, parameter 1 and parameter 2 are first type parameters. , parameter 4 is the second type of parameter. Parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, parameter 4 corresponds to band 4, parameter 4 is the ratio of parameter 1 on band 1 to the first type of parameter on band 4, or parameter 4 is parameter 2 on band 2 The ratio to the first type of parameter on Band 4. Assume that the first type of parameter corresponding to band 4 is parameter 3.

参数1可以为第一比值参数,也可以为第二比值参数,参数3可以为第一比值参数,也可以为第二比值参数,则参数4还可以为频带1上的参数1与频带4上的第一比值参数或者第二比值参数的比值。或者参数4还可以为频带1上的第一比值参数与频带4上的第一比值参数或者第二比值参数的比值。或者参数4还可以为频带1上的第二比值参数与频带4上的第一比值参数或者第二比值参数的比值。The parameter 1 may be the first ratio parameter or the second ratio parameter, and the parameter 3 may be the first ratio parameter or the second ratio parameter, and the parameter 4 may also be the parameter 1 and the band 4 on the frequency band 1. The ratio of the first ratio parameter or the second ratio parameter. Or parameter 4 may also be the ratio of the first ratio parameter on Band 1 to the first ratio parameter or the second ratio parameter on Band 4. Alternatively, parameter 4 may also be the ratio of the second ratio parameter on Band 1 to the first ratio parameter or the second ratio parameter on Band 4.

参数2可以为第一比值参数,也可以为第二比值参数,参数3可以为第一比值参数,也可以为第二比值参数,则参数4还可以为频带2上的参数2与频带4上的第一比值参数或者第二比值参数的比值。或者参数4还可以为频带2上的第一比值参数与频带4上的第一比值参数或者第二比值参数的比值。或者参数4还可以为频带2上的第二比值参数与频带4上的第一比值参数或者第二比值参数的比值。The parameter 2 may be the first ratio parameter or the second ratio parameter, and the parameter 3 may be the first ratio parameter or the second ratio parameter, and the parameter 4 may also be the parameter 2 and the band 4 on the frequency band 2. The ratio of the first ratio parameter or the second ratio parameter. Or parameter 4 may also be the ratio of the first ratio parameter on Band 2 to the first ratio parameter or the second ratio parameter on Band 4. Or parameter 4 may also be the ratio of the second ratio parameter on Band 2 to the first ratio parameter or the second ratio parameter on Band 4.

需要说明的是,下行功率分配参数中并不包括频带4对应的第一类参数。It should be noted that the first type parameter corresponding to the frequency band 4 is not included in the downlink power allocation parameter.

例如,下行功率分配参数中包括参数1、参数2和参数4,其中,下行功率分配参数中包括1个第一类参数和2个第二类参数,即参数1为第一类参数,参数2、参数4为第二类参数。参数1对应频带1,参数2对应频带2,频带2对应的第一类参数为参数3,参数4对应频带4,频带4对应的第一类参数为参数,5,参数2为频带1上的参数1与频带2上的第一类参数的比值,参数4为频带1上的参数1与频带4上的第一类参数的比值。For example, the downlink power allocation parameter includes parameter 1, parameter 2, and parameter 4, wherein the downlink power allocation parameter includes one first type parameter and two second type parameters, that is, parameter 1 is a first type parameter, and parameter 2 is Parameter 4 is the second type of parameter. Parameter 1 corresponds to band 1, parameter 2 corresponds to band 2, band 2 corresponds to the first type of parameter parameter 3, parameter 4 corresponds to band 4, band 4 corresponds to the first type of parameter as parameter, 5, parameter 2 is band 1 The ratio of parameter 1 to the first type of parameter on band 2, parameter 4 is the ratio of parameter 1 on band 1 to the first type parameter on band 4.

参数1可以为第一比值参数,也可以为第二比值参数,参数3可以为第一比值参数,也可以为第二比值参数。则参数2可以为频带1对应的第一类参数与频带2对应的第一比值参数或者第二比值参数的比值,或者参数2可以为频带1对应的第一比值参数与频带2对应的第一比值参数或者第二比值参数的比值,或者参数2可以为频带1对应的第二比值参数与频带2对应的第一比值参数或者第二比值参数的比值。在此不再对参数5为第一比值参数,或者第二比值参数的情况做一一介绍,具体可参见参数3为第一比值参数,或者第二比值参数的情况。需要说明的是,下行功率分配参数中并不包括频带2对应的第一类参数和频带4对应的第一类参数。The parameter 1 may be a first ratio parameter or a second ratio parameter, and the parameter 3 may be a first ratio parameter or a second ratio parameter. The parameter 2 may be a ratio of the first type parameter corresponding to the first type parameter corresponding to the frequency band 1 to the first ratio parameter or the second ratio parameter corresponding to the frequency band 2, or the parameter 2 may be the first ratio parameter corresponding to the frequency band 1 and the first corresponding to the frequency band 2 The ratio of the ratio parameter or the second ratio parameter, or the parameter 2 may be a ratio of the second ratio parameter corresponding to the band 1 to the first ratio parameter or the second ratio parameter corresponding to the band 2. Here, the case where the parameter 5 is the first ratio parameter or the second ratio parameter is not introduced one by one. For details, refer to the case where the parameter 3 is the first ratio parameter or the second ratio parameter. It should be noted that the downlink power allocation parameter does not include the first type parameter corresponding to the frequency band 2 and the first type parameter corresponding to the frequency band 4.

例如,第一类参数为EPREPDSCH与EPRECRS的比值时,可以采用PA1表示参数1,参数1为第一类参数,PA1为对应于频带1的下行功率分配参数。可以采用PA2表示参数2,参数2为第一类参数,PA2为对应于频带2的下行功率分配参数。For example, when the first type of parameter is the ratio of EPRE PDSCH to EPRE CRS , P A1 may be used to represent parameter 1, parameter 1 is a first type parameter, and P A1 is a downlink power allocation parameter corresponding to band 1. P A2 may be used to represent parameter 2, parameter 2 is a first type of parameter, and P A2 is a downlink power allocation parameter corresponding to band 2.

参数4为第二类参数,可以采用PA14表示参数4,则PA14=PA1/PA4,或者PA14=PA4/PA1Parameter 4 is the second type of parameter, and P A14 can be used to represent parameter 4, then P A14 =P A1 /P A4 , or P A14 =P A4 /P A1 ,

其中,PA4表示频带4对应的第一类参数。当然,参数4还可以采用PA24表示,Where P A4 represents the first type of parameter corresponding to the frequency band 4. Of course, parameter 4 can also be represented by P A24 .

则PA24=PA2/PA4,或者PA24=PA4/PA2Then P A24 =P A2 /P A4 , or P A24 =P A4 /P A2 .

或者,参数1为第一类参数,参数2和参数4为第二类参数,其中,参Or, parameter 1 is the first type of parameter, and parameter 2 and parameter 4 are the second type of parameter, wherein

数2采用PA12表示,则PA12=PA1/PA2,或者PA12=PA2/PA1,其中PA2为频带2对应的第一类参数,采用PA14表示参数4,则PA14=PA1/PA4,或者PA14=PA4/PA1,其中,PA4 The number 2 is represented by P A12 , then P A12 =P A1 /P A2 , or P A12 =P A2 /P A1 , where P A2 is the first type of parameter corresponding to band 2, and P A14 is used to represent parameter 4, then P A14 =P A1 /P A4 , or P A14 =P A4 /P A1 , where P A4

表示频带4对应的第一类参数。Indicates the first type of parameter corresponding to band 4.

例如,第一类参数为EPREPDSCH与EPRECSI-RS的比值时,可以采用PC1表示参数1,参数1为第一类参数,PC1为对应于频带1的下行功率分配参数。可以采用PC2表示参数2,参数2为第一类参数,PC2为对应于频带2的下行功率分配参For example, when the first type of parameter is the ratio of EPRE PDSCH to EPRE CSI-RS , P C1 may be used to indicate parameter 1, parameter 1 is a first type parameter, and P C1 is a downlink power allocation parameter corresponding to band 1. May be employed P C2 parameter representing 2, a first parameter is a type parameter 2, P C2 for the frequency band corresponding to a downlink power allocation parameter 2

数。参数4为第二类参数,可以PC14表示参数4,PC14=PC1/PC4,或者PC14=PC4/PC1number. Parameter 4 is the second type of parameter, which can be P C14 for parameter 4, P C14 =P C1 /P C4 , or P C14 =P C4 /P C1 .

其中,PC4表示频带4对应的第一类参数。当然,参数4还可以采用PC24表示,Wherein, P C4 represents the first type of parameter corresponding to the frequency band 4. Of course, parameter 4 can also be represented by P C24 .

则PC24=PC2/PC4,或者PC24=PC4/PC2Then P C24 =P C2 /P C4 , or P C24 =P C4 /P C2 .

或者,参数1为第一类参数,参数2和参数4为第二类参数,其中,参Or, parameter 1 is the first type of parameter, and parameter 2 and parameter 4 are the second type of parameter, wherein

数2采用PC12表示,则PC12=PC1/PC2,或者PC12=PC2/PC1,其中PC2为频带2对应的第一类参数,采用PC14表示参数4,则PC14=PC1/PC4,或者PC14=PC4/PC1,其中,PC4表示频带4对应的第一类参数。The number 2 is represented by P C12 , then P C12 =P C1 /P C2 , or P C12 =P C2 /P C1 , where P C2 is the first type of parameter corresponding to band 2, and P C14 is used to represent parameter 4, then P C14 =P C1 /P C4 , or P C14 =P C4 /P C1 , where P C4 represents the first type of parameter corresponding to band 4.

进一步可选的,下行功率分配参数中包括的N个参数对应的N个频带中任两个频带在在频域上部分重叠或者不重叠。Further, optionally, any two of the N frequency bands corresponding to the N parameters included in the downlink power allocation parameter partially overlap or do not overlap in the frequency domain.

频带指一段频率资源,例如,10MHz带宽的一段频率资源。而频域为一个逻辑概念,指频率空间。A frequency band refers to a frequency resource, for example, a frequency resource of 10 MHz bandwidth. The frequency domain is a logical concept, referring to the frequency space.

进一步可选的,下行功率分配参数中包括的N个参数对应的N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Further, each of the N frequency bands corresponding to the N parameters included in the downlink power allocation parameter occupies part of the bandwidth or part of the physical resource block of the carrier when the base station transmits the reference signal; or

下行功率分配参数中包括的N个参数对应N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;所述参考信号为CRS或CSI-RS。The N parameters included in the downlink power allocation parameter correspond to each of the N frequency bands occupying the entire bandwidth of the carrier when the base station transmits the reference signal; the reference signal is a CRS or a CSI-RS.

例如,一个载波为20MHz,则一个频带可以占用全部的20MHz,这时频带就是占用一个载波,一个频带也可以占用3MHz,则频带就占用该载波的部分带宽。For example, if one carrier is 20 MHz, one frequency band can occupy all 20 MHz. In this case, the frequency band occupies one carrier, and one frequency band can also occupy 3 MHz, and the frequency band occupies part of the bandwidth of the carrier.

进一步可选的,基站向终端发送无线资源控制协议(Radio Resource Control,RRC)信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Further, the base station sends a Radio Resource Control (RRC) signaling to the terminal, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

步骤502,在所述N个频带上基站向所述终端发送参考信号。Step 502: The base station sends a reference signal to the terminal on the N frequency bands.

其中,所述N个频带中每个频带上发送的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。附图3所示,阴影部分与白色部分分别表示不同的频带,不同的频带的发射功率不同,具体可参见附图3的描述,在此不再一一赘述。The transmit power of the reference signal transmitted on each of the N frequency bands corresponds to the frequency band-specific downlink power allocation parameter of each frequency band, and the reference signal includes a CRS or a CSI-RS. As shown in FIG. 3, the shaded portion and the white portion respectively indicate different frequency bands, and the transmission powers of different frequency bands are different. For details, refer to the description of FIG. 3, and details are not described herein again.

步骤503,终端接收基站发送的频带特定的下行功率分配参数。Step 503: The terminal receives a frequency band-specific downlink power allocation parameter sent by the base station.

需要说明的是,对于频带特定的下行功率分配参数的描述可以参见步骤501中的描述,在此不再一一赘述。It should be noted that, for descriptions of the bandwidth-specific downlink power allocation parameters, refer to the description in step 501, and details are not described herein again.

可选的,终端接收基站发送的无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Optionally, the terminal receives the radio resource control protocol RRC signaling sent by the base station, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

需要说明的是,步骤502与步骤503的执行顺序不固定,可以先执行步骤502再执行步骤503,或者先执行步骤503再执行步骤502,或者步骤502与步骤503同时执行。It should be noted that the execution order of step 502 and step 503 is not fixed. Step 502 may be performed before step 503, or step 503 may be performed first, or step 502 may be performed at the same time.

步骤504,在所述N个频带上,终端接收所述基站发送的参考信号。Step 504: On the N frequency bands, the terminal receives the reference signal sent by the base station.

步骤505,终端根据所述参考信号获得初始信道状态信息。Step 505: The terminal obtains initial channel state information according to the reference signal.

本步骤可以根据现有技术获得初始信道状态信息,即终端根据实际接收到的经过无线信道衰减后的CRS或者CSI-RS,与原始CRS或者CSI-RS进行比较,从而获得信道状态信息。This step can obtain initial channel state information according to the prior art, that is, the terminal compares with the original CRS or CSI-RS according to the actually received CRS or CSI-RS after the radio channel attenuation, thereby obtaining channel state information.

步骤506,终端根据所述下行功率分配参数获得EPREPDSCH与EPRECRS的比值或者EPREPDSCH与EPRECSI-RS的比值。Step 506: The terminal obtains a ratio of an EPRE PDSCH to an EPRE CRS or a ratio of an EPRE PDSCH to an EPRE CSI-RS according to the downlink power allocation parameter.

所述EPREPDSC表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示CRS资源单元上的能量,所述EPRECSI-RS表示CSI-RS资源单元上的能量。The EPRE PDSC represents energy on a physical downlink shared channel PDSCH resource unit, the EPRE CRS represents energy on a CRS resource unit, and the EPRE CSI-RS represents energy on a CSI-RS resource unit.

可选的,本步骤终端根据所述下行功率分配参数获得EPREPDSCH与EPRECRS的比值或者EPREPDSCH与EPRECSI-RS的比值时,由于下行功率分配参数中的N个参数可以为第一类参数也可以为第二类参数,因此可以将根据所述第一类参数直接获得所述EPREPDSCH与EPRECRS的比值或者所述EPREPDSCH与EPRECSI-RS的比值;或者,Optionally, when the terminal in this step obtains the ratio of the EPRE PDSCH to the EPRE CRS or the ratio of the EPRE PDSCH to the EPRE CSI-RS according to the downlink power allocation parameter, the N parameters in the downlink power allocation parameter may be the first type of parameters. The ratio of the EPRE PDSCH to the EPRE CRS or the ratio of the EPRE PDSCH to the EPRE CSI-RS may be directly obtained according to the first type of parameters; or

根据所述第二类参数计算获得所述第一类参数,再将所述第一类参数作为所述Obtaining the first type of parameters according to the second type of parameter calculation, and using the first type of parameters as the

EPREPDSCH与EPRECRS的比值或者所述EPREPDSCH与EPRECSI-RS的比值。The ratio of the EPRE PDSCH to the EPRE CRS or the ratio of the EPRE PDSCH to the EPRE CSI-RS .

步骤507,终端根据所述EPREPDSCH与EPRECRS的比值或者所述EPREPDSCH与EPRECSI-RS的比值,调整所述初始信道状态信息,获得调整之后的信道状态信息。Step 507: The terminal adjusts the initial channel state information according to a ratio of the EPRE PDSCH to an EPRE CRS or a ratio of the EPRE PDSCH to an EPRE CSI-RS , and obtains channel state information after the adjustment.

例如,步骤505获得的初始信道状态信息中CQI为10dB,EPREPDSCH与EPRECRS的比值或者所述EPREPDSCH与EPRECSI-RS的比值为3dB,则可将CQI的值增加3dB,从而获得调整之后的信道状态信息,即CQI为13dB。For example, if the CQI in the initial channel state information obtained in step 505 is 10 dB, the ratio of the EPRE PDSCH to the EPRE CRS , or the ratio of the EPRE PDSCH to the EPRE CSI-RS is 3 dB, the value of the CQI can be increased by 3 dB, thereby obtaining the adjustment. The channel state information, that is, the CQI is 13 dB.

步骤508,终端将调整之后的信道状态信息发送给基站。Step 508: The terminal sends the adjusted channel state information to the base station.

本发明实施例提供一种下行功率分配参数的通知方法,通过将频带特定的下行功率分配参数通知给终端,进而可以实现不同的频带采用不同的下行功率分配参数,即不同的频带采用不同的发射功率,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。An embodiment of the present invention provides a method for notifying a downlink power allocation parameter, by notifying a terminal of a bandwidth-specific downlink power allocation parameter, and further implementing different downlink power allocation parameters for different frequency bands, that is, different frequency bands adopt different transmissions. Power can reduce the interference of reference signals between cells, thereby improving the spectrum efficiency of the system.

本发明实施例提供一种下行功率分配参数的通知装置,如图6所示,该装置可以为基站,该装置包括:发送单元601,接收单元602;The embodiment of the present invention provides a notification device for a downlink power allocation parameter. As shown in FIG. 6, the device may be a base station, and the device includes: a sending unit 601, a receiving unit 602;

发送单元601,用于向终端发送频带特定的下行功率分配参数,以便所述终端根据所述频带特定的下行功率分配参数获得信道状态信息,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;The sending unit 601 is configured to send a frequency band-specific downlink power allocation parameter to the terminal, so that the terminal obtains channel state information according to the frequency band-specific downlink power allocation parameter, where the frequency band-specific downlink power allocation parameter includes N parameters, The N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2;

可选的,所述N个参数为第一类参数;Optionally, the N parameters are first type parameters;

所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit.

可选的,所述N个参数包括所述第一类参数和第二类参数;Optionally, the N parameters include the first type parameter and the second type parameter;

所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first type on the first frequency band a ratio of a ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type parameter is the second on the first frequency band a ratio of the ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first type on the first frequency band a ratio of a parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

可选的,所述发送单元601发送的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Optionally, any two of the N frequency bands of the frequency band-specific downlink power allocation parameters sent by the sending unit 601 partially overlap or do not overlap in the frequency domain.

可选的,所述发送单元601发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,所述发送单元601发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;所述参考信号为CRS或CSI-RS。Optionally, each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the sending unit 601 occupies a partial bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or Each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the sending unit 601 occupies the entire bandwidth of the carrier when the base station transmits the reference signal; the reference signal is a CRS or a CSI-RS.

接收单元602,用于接收所述终端发送的所述信道状态信息。The receiving unit 602 is configured to receive the channel state information sent by the terminal.

进一步可选的,所述发送单元601,用于向终端发送无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Further, the sending unit 601 is configured to send a radio resource control protocol (RRC) signaling to the terminal, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

进一步可选的,所述发送单元601,还用于:Further, the sending unit 601 is further configured to:

在所述N个频带上向所述终端发送参考信号,其中,所述N个频带中每个频带上发送的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。Transmitting a reference signal to the terminal on the N frequency bands, wherein a transmit power of the reference signal transmitted on each of the N frequency bands corresponds to the frequency band-specific downlink of each frequency band A power allocation parameter, the reference signal comprising a CRS or a CSI-RS.

需要说明的是,附图6所示装置中,其各个模块的具体实施过程以及各个模块之间的信息交互等内容,由于与本发明方法实施例基于同一发明构思,可以参见方法实施例,在此不一一赘述。It should be noted that, in the apparatus shown in FIG. 6, the specific implementation process of each module and the information interaction between the modules are based on the same inventive concept as the method embodiment of the present invention, and may refer to the method embodiment. This is not repeated.

本发明实施例提供一种下行功率分配参数的通知装置,通过发送单元向终端发送频带特定的下行功率分配参数,以便所述终端根据所述下行功率分配参数获得信道状态信息;接收单元接收所述终端发送的所述信道状态信息,使得可以实现不同的频带采用不同的下行功率分配参数,即不同的频带采用不同的发射功率,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。An embodiment of the present invention provides a notification device for a downlink power allocation parameter, where a transmission unit sends a frequency band-specific downlink power allocation parameter to a terminal, so that the terminal obtains channel state information according to the downlink power allocation parameter; and the receiving unit receives the The channel state information sent by the terminal enables different downlink power allocation parameters to be implemented in different frequency bands, that is, different frequency bands use different transmission powers, which can reduce interference of reference signals between cells, thereby improving spectrum efficiency of the system.

本发明实施例提供一种基站,如图7所示,该基站包括:存储器701,处理器702,发送器703,接收器704;The embodiment of the present invention provides a base station, as shown in FIG. 7, the base station includes: a memory 701, a processor 702, a transmitter 703, and a receiver 704.

存储器701,用于存储包括程序例程的信息;a memory 701, configured to store information including a program routine;

处理器702,用于与存储器701、发送器703和接收器704耦合,用于控制所述程序例程的执行;a processor 702, configured to be coupled to the memory 701, the transmitter 703, and the receiver 704, for controlling execution of the program routine;

发送器703,用于向终端发送频带特定的下行功率分配参数,以便所述终端根据所述频带特定的下行功率分配参数获得信道状态信息,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;The transmitter 703 is configured to send a frequency band-specific downlink power allocation parameter to the terminal, so that the terminal obtains channel state information according to the frequency band-specific downlink power allocation parameter, where the frequency band-specific downlink power allocation parameter includes N parameters, The N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2;

接收器704,用于接收所述终端发送的所述信道状态信息。The receiver 704 is configured to receive the channel state information sent by the terminal.

可选的,所述发送器703发送的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;Optionally, the N parameters of the frequency band-specific downlink power allocation parameters sent by the transmitter 703 are first type parameters;

所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit.

可选的,所述发送器703发送的所述频带特定的下行功率分配参数中的所述N个参数包括所述第一类参数和第二类参数;Optionally, the N parameters of the frequency band-specific downlink power allocation parameters sent by the transmitter 703 include the first type parameter and the second type parameter;

所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The second type of parameter is a ratio of the first type of parameter on the first frequency band to the first type of parameter on the second frequency band; or the second type of parameter is the first type on the first frequency band a ratio of a ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the second type parameter is the second on the first frequency band a ratio of the ratio parameter to the first ratio parameter on the second frequency band or the second ratio parameter on the second frequency band; or the third type parameter is the first type on the first frequency band a ratio of a parameter to the first ratio parameter or the second ratio parameter on the second frequency band;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

可选的,所述发送器703发送的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Optionally, any two of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the transmitter 703 partially overlap or do not overlap in the frequency domain.

可选的,所述发送器703发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,所述发送器703发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;所述参考信号为CRS或CSI-RS。Optionally, each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the transmitter 703 occupies a partial bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or Each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the transmitter 703 occupies the entire bandwidth of the carrier when the base station transmits the reference signal; the reference signal is a CRS or a CSI-RS.

进一步可选的,所述发送器703,用于:Further, the transmitter 703 is configured to:

向终端发送无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。And transmitting, to the terminal, a radio resource control protocol (RRC) signaling, where the RRC signaling includes the frequency band-specific downlink power allocation parameter.

进一步可选的,所述发送器703,还用于:Further, the transmitter 703 is further configured to:

在所述N个频带上向所述终端发送参考信号,其中,所述N个频带中每个频带上发送的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。需要说明的是,下行功率分配参数中包括的N个参数为第一类参数,所述第一类参数为EPREPDSCH与EPRECRS的比值,或者,所述第一类参数为EPREPDSCH与EPRECSI-RS的比值。在数值上,发射功率与EPRECRS或者EPRECSI-RS相同。Transmitting a reference signal to the terminal on the N frequency bands, wherein a transmit power of the reference signal transmitted on each of the N frequency bands corresponds to the frequency band-specific downlink of each frequency band A power allocation parameter, the reference signal comprising a CRS or a CSI-RS. It should be noted that the N parameters included in the downlink power allocation parameter are the first type of parameters, and the first type of parameters is the ratio of the EPRE PDSCH to the EPRE CRS , or the first type of parameters are the EPRE PDSCH and the EPRE CSI. -RS ratio. In numerical terms, the transmit power is the same as the EPRE CRS or EPRE CSI-RS .

需要说明的是,附图7所示装置中,其各个模块的具体实施过程以及各个模块之间的信息交互等内容,由于与本发明方法实施例基于同一发明构思,可以参见方法实施例,在此不一一赘述。It should be noted that, in the apparatus shown in FIG. 7 , the specific implementation process of each module and the information interaction between the modules are based on the same inventive concept as the method embodiment of the present invention, and may be referred to the method embodiment. This is not repeated.

本发明实施例提供一种基站,通过发送器向终端发送频带特定的下行功率分配参数,以便所述终端根据所述下行功率分配参数获得信道状态信息;接收器接收所述终端发送的所述信道状态信息,使得可以实现不同的频带采用不同的下行功率分配参数,即不同的频带采用不同的发射功率,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。An embodiment of the present invention provides a base station, where a transmitter transmits a frequency band-specific downlink power allocation parameter to a terminal, so that the terminal obtains channel state information according to the downlink power allocation parameter; and the receiver receives the channel sent by the terminal. The status information makes it possible to implement different downlink power allocation parameters for different frequency bands, that is, different frequency bands use different transmission powers, which can reduce the interference of reference signals between cells, thereby improving the spectrum efficiency of the system.

本发明实施例提供一种下行功率分配参数的通知装置,该装置可以为终端,如图8所示,该装置包括:接收单元801,获得单元802,发送单元803;The embodiment of the present invention provides a notification device for a downlink power allocation parameter, and the device may be a terminal. As shown in FIG. 8, the device includes: a receiving unit 801, an obtaining unit 802, and a sending unit 803;

接收单元801,用于接收基站发送的频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;The receiving unit 801 is configured to receive a frequency band-specific downlink power allocation parameter sent by the base station, where the frequency band-specific downlink power allocation parameter includes N parameters, where the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2 ;

其中,所述接收单元801接收的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量;The N parameters of the frequency band-specific downlink power allocation parameters received by the receiving unit 801 are first type parameters; the first type parameter is a first ratio parameter, and the first ratio parameter is The ratio of the EPRE PDSCH to the EPRE CRS , the EPRE PDSCH represents the energy on the physical downlink shared channel PDSCH resource unit, the EPRE CRS represents the energy on the common reference signal CRS resource unit; or the first type parameter is the second a ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS represents an energy on a channel state information reference signal CSI-RS resource unit;

所述接收单元801接收的所述频带特定的下行功率分配参数中的所述N个参数包括所述第一类参数和第二类参数;其中,所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The N parameters of the frequency band-specific downlink power allocation parameters received by the receiving unit 801 include the first type parameter and the second type parameter; wherein the second type parameter is on the first frequency band a ratio of the first type of parameter to the first type of parameter on the second frequency band; or the second type of parameter is the first ratio parameter on the first frequency band and the first on the second frequency band a ratio parameter or a ratio of the second ratio parameter on the second frequency band; or the second type parameter is the second ratio parameter on the first frequency band and the first on the second frequency band a ratio parameter or a ratio of the second ratio parameter on the second frequency band; or the third type of parameter is the first type of parameter on the first frequency band and the first type on the second frequency band a ratio parameter or a ratio of the second ratio parameter;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

可选的,所述接收单元801接收的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Optionally, any two of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiving unit 801 partially overlap or do not overlap in a frequency domain.

可选的,所述接收单元801接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,所述接收单元801接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;所述参考信号为CRS或CSI-RS。Optionally, each of the N frequency bands in the frequency band-specific downlink power allocation parameter received by the receiving unit 801 occupies a partial bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or Each of the N frequency bands in the frequency band-specific downlink power allocation parameter received by the receiving unit 801 occupies the entire bandwidth of the carrier when the base station transmits the reference signal; the reference signal is a CRS or a CSI-RS.

获得单元802,用于根据接收单元801接收的所述频带特定的下行功率分配参数获得信道状态信息;The obtaining unit 802 is configured to obtain channel state information according to the frequency band-specific downlink power allocation parameter received by the receiving unit 801;

发送单元803,用于将获得单元802获得的所述信道状态信息发送给所述基站。The sending unit 803 is configured to send the channel state information obtained by the obtaining unit 802 to the base station.

进一步可选的,在所述获得单元802根据接收单元801接收的所述下行功率分配参数获得信道状态信息之前,所述接收单元801,还用于在所述N个频带上接收所述基站发送的参考信号,所述参考信号包括公共参考信号CRS或信道状态信息参考信号CSI-RS;Further, optionally, before the obtaining unit 802 obtains channel state information according to the downlink power allocation parameter received by the receiving unit 801, the receiving unit 801 is further configured to receive, by using, the base station to send on the N frequency bands. Reference signal, the reference signal includes a common reference signal CRS or a channel state information reference signal CSI-RS;

所述获得单元802,还用于根据所述参考信号获得初始信道状态信息。The obtaining unit 802 is further configured to obtain initial channel state information according to the reference signal.

进一步可选的,当所述频带特定的下行功率分配参数中的N个参数为第一类参数时,所述获得单元802,用于根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。Further, optionally, when the N parameters of the frequency band-specific downlink power allocation parameters are the first type of parameters, the obtaining unit 802 is configured to use, according to the first ratio parameter or the second ratio parameter, Adjusting the initial channel state information to obtain channel state information after adjustment.

进一步可选的,如图9所示,当所述频带特定的下行功率分配参数中的N个参数为第二类参数时,所述获得单元802,包括:第一获得模块8021,第二获得模块8022;Further, as shown in FIG. 9 , when the N parameters of the bandwidth-specific downlink power allocation parameters are the second type of parameters, the obtaining unit 802 includes: the first obtaining module 8021, and the second obtaining Module 8022;

第一获得模块8021,用于根据所述第二类参数计算获得所述第一比值参数或者所述第二比值参数;a first obtaining module 8021, configured to obtain the first ratio parameter or the second ratio parameter according to the second type parameter calculation;

第二获得模块8022,用于根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。The second obtaining module 8022 is configured to adjust the initial channel state information according to the first ratio parameter or the second ratio parameter to obtain channel state information after the adjustment.

进一步可选的,所述接收单元801接收频带特定的下行功率分配参数时,用于接收基站发送的无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Further, the receiving unit 801 is configured to receive a radio resource control protocol (RRC) signaling sent by the base station, where the RRC signaling includes the frequency band-specific downlink power allocation parameter, when the receiving unit 801 receives the frequency band-specific downlink power allocation parameter. .

需要说明的是,附图8或9所示装置中,其各个模块的具体实施过程以及各个模块之间的信息交互等内容,由于与本发明方法实施例基于同一发明构思,可以参见方法实施例,在此不一一赘述。It should be noted that, in the apparatus shown in FIG. 8 or FIG. 9 , the specific implementation process of each module and the information interaction between the modules are the same as the method embodiment of the present invention. I will not repeat them here.

本发明实施例提供一种下行功率分配参数的通知装置,通过接收单元接收基站发送的频带特定的下行功率分配参数,然后获得单元根据接收单元接收的所述频带特定的下行功率分配参数获得信道状态信息;发送单元将获得的所述信道状态信息发送给所述基站,使得可以通过频带特定的下行功率分配参数,实现不同的频带采用不同的下行功率分配参数,即不同的频带采用不同的发射功率,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。An embodiment of the present invention provides a notification device for downlink power allocation parameters, where a receiving unit receives a frequency band-specific downlink power allocation parameter sent by a base station, and then the obtaining unit obtains a channel state according to the frequency band-specific downlink power allocation parameter received by the receiving unit. The sending unit sends the obtained channel state information to the base station, so that different downlink power allocation parameters can be adopted for different frequency bands by using frequency band-specific downlink power allocation parameters, that is, different frequency bands adopt different transmitting powers. It can reduce the interference of reference signals between cells, thereby improving the spectrum efficiency of the system.

本发明实施例提供一种终端,如图10所示,该终端包括:接收器1001,存储器1002,处理器1003,发送器1004;The embodiment of the present invention provides a terminal, as shown in FIG. 10, the terminal includes: a receiver 1001, a memory 1002, a processor 1003, and a transmitter 1004.

接收器1001,用于接收基站发送的频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;The receiver 1001 is configured to receive a frequency-specific downlink power allocation parameter sent by the base station, where the frequency-specific downlink power allocation parameter includes N parameters, where the N parameters respectively correspond to N frequency bands, where the N is greater than or equal to 2. ;

存储器1002,用于存储包括程序例程的信息;a memory 1002, configured to store information including a program routine;

处理器1003,用于与存储器1002、发送器1004和接收器1001耦合,用于控制所述程序例程的执行,具体用于:根据接收器接收到的所述频带特定的下行功率分配参数获得信道状态信息;The processor 1003 is configured to be coupled to the memory 1002, the transmitter 1004, and the receiver 1001, and configured to control execution of the program routine, where the method is specifically configured to: obtain, according to the frequency-specific downlink power allocation parameter received by the receiver. Channel status information;

发送器1004,用于将处理器获得的所述信道状态信息发送给所述基站。The transmitter 1004 is configured to send the channel state information obtained by the processor to the base station.

其中,所述接收器1001接收的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The N parameters of the frequency band-specific downlink power allocation parameters received by the receiver 1001 are first type parameters; the first type parameter is a first ratio parameter, and the first ratio parameter is The ratio of the EPRE PDSCH to the EPRE CRS , the EPRE PDSCH represents the energy on the physical downlink shared channel PDSCH resource unit, the EPRE CRS represents the energy on the common reference signal CRS resource unit; or the first type parameter is the second The ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS represents an energy on a channel state information reference signal CSI-RS resource unit.

所述接收器1001接收的所述频带特定的下行功率分配参数中的所述N个参数包括所述第一类参数和第二类参数;其中,所所述第二类参数为第一频带上的所述第一类参数与第二频带上的所述第一类参数的比值;或者,所述第二类参数为第一频带上的所述第一比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第二类参数为第一频带上的所述第二比值参数与第二频带上的所述第一比值参数或者所述第二频带上的所述第二比值参数的比值;或者,所述第三类参数为第一频带上的所述第一类参数与所述第二频带上的所述第一比值参数或者所述第二比值参数的比值;The N parameters of the frequency band-specific downlink power allocation parameters received by the receiver 1001 include the first type parameter and the second type parameter; wherein the second type parameter is on the first frequency band a ratio of the first type of parameter to the first type of parameter on the second frequency band; or the second type of parameter is the first ratio parameter on the first frequency band and the second frequency band a ratio of the first ratio parameter or the second ratio parameter on the second frequency band; or the second type parameter is the second ratio parameter on the first frequency band and the second frequency band a ratio parameter or a ratio of the second ratio parameter on the second frequency band; or the third type of parameter is the first type of parameter on the first frequency band and the a ratio of the first ratio parameter or the second ratio parameter;

所述第一频带与所述第二频带为所述N个不同的频带中的任两个频带。The first frequency band and the second frequency band are any two of the N different frequency bands.

可选的,所述接收器1001接收的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Optionally, any two of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiver 1001 partially overlap or do not overlap in a frequency domain.

可选的,所述接收器1001接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,所述接收器1001接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;所述参考信号为CRS或CSI-RS。Optionally, each of the N frequency bands in the frequency band-specific downlink power allocation parameter received by the receiver 1001 occupies a partial bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or Each of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiver 1001 occupies the entire bandwidth of the carrier when the base station transmits the reference signal; the reference signal is a CRS or a CSI-RS.

进一步可选的,在所述处理器1003根据接收器1001接收的所述频带特定的下行功率分配参数获得信道状态信息之前,所述接收器1001,还用于在所述N个频带上接收所述基站发送的参考信号,所述参考信号包括公共参考信号CRS或信道状态信息参考信号CSI-RS;Further, optionally, before the processor 1003 obtains channel state information according to the frequency band-specific downlink power allocation parameter received by the receiver 1001, the receiver 1001 is further configured to receive the N frequency bands. Describe a reference signal transmitted by the base station, where the reference signal includes a common reference signal CRS or a channel state information reference signal CSI-RS;

所述处理器,还用于根据所述参考信号获得初始信道状态信息。The processor is further configured to obtain initial channel state information according to the reference signal.

进一步可选的,当所述频带特定的下行功率分配参数中的N个参数为第一类参数时,所述处理器1003用于根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。Further, optionally, when the N parameters of the frequency band-specific downlink power allocation parameters are the first type of parameters, the processor 1003 is configured to adjust according to the first ratio parameter or the second ratio parameter. The initial channel state information obtains channel state information after adjustment.

进一步可选的,当所述频带特定的下行功率分配参数中的N个参数为第二类参数时,所述处理器1003根据所述第二类参数计算获得所述第一比值参数或者所述第二比值参数;再根据所述第一比值参数或者所述第二比值参数,调整所述初始信道状态信息,获得调整之后的信道状态信息。Further, optionally, when the N parameters of the frequency band-specific downlink power allocation parameters are the second type of parameters, the processor 1003 obtains the first ratio parameter or the The second ratio parameter is further adjusted according to the first ratio parameter or the second ratio parameter to obtain channel state information after the adjustment.

进一步可选的,所述接收器1001接收频带特定的下行功率分配参数时,用于接收基站发送的无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Further, the receiver 1001 is configured to receive a radio resource control protocol (RRC) signaling sent by the base station, where the RRC signaling includes the frequency band-specific downlink power allocation parameter. .

需要说明的是,附图10所示装置中,其各个模块的具体实施过程以及各个模块之间的信息交互等内容,由于与本发明方法实施例基于同一发明构思,可以参见方法实施例,在此不一一赘述。It should be noted that, in the apparatus shown in FIG. 10, the specific implementation process of each module and the information interaction between the modules are based on the same inventive concept as the method embodiment of the present invention, and may refer to the method embodiment. This is not repeated.

本发明实施例提供一种下行功率分配参数的通知装置,通过接收器接收基站发送的频带特定的下行功率分配参数,然后处理器根据接收单元接收的所述频带特定的下行功率分配参数获得信道状态信息;发送器将获得的所述信道状态信息发送给所述基站,使得可以通过频带特定的下行功率分配参数,实现不同的频带采用不同的下行功率分配参数,即不同的频带采用不同的发射功率,可以降低小区间参考信号的干扰,从而提高系统的频谱效率。An embodiment of the present invention provides a notification device for downlink power allocation parameters, where a receiver receives a frequency band-specific downlink power allocation parameter sent by a base station, and then the processor obtains a channel state according to the frequency band-specific downlink power allocation parameter received by the receiving unit. The transmitter sends the obtained channel state information to the base station, so that different downlink power allocation parameters can be adopted for different frequency bands by using frequency band-specific downlink power allocation parameters, that is, different frequency bands adopt different transmission powers. It can reduce the interference of reference signals between cells, thereby improving the spectrum efficiency of the system.

需说明的是,以上所描述的装置实施例仅仅是示意性的,其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下,即可以理解并实施。It should be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical. Units can be located in one place or distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到本发明可借助软件加必需的通用硬件的方式来实现,当然也可以通过专用硬件包括专用集成电路、专用CPU、专用存储器、专用元器件等来实现,但很多情况下前者是更佳的实施方式。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在可读取的存储介质中,如计算机的软盘,U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述的方法。Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, dedicated hardware, dedicated CPU, dedicated memory, dedicated memory, Special components are used to achieve this, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. , U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., including a number of instructions to make a computer device (may be A personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present invention.

本说明书中的各个实施例均采用递进的方式描述,各个实施例之间相同相似的部分互相参见即可,每个实施例重点说明的都是与其他实施例的不同之处。尤其,对于装置和系统实施例而言,由于其基本相似于方法实施例,所以描述得比较简单,相关之处参见方法实施例的部分说明即可。The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the device and system embodiments are relatively simple to describe because they are substantially similar to the method embodiments, and the relevant portions of the method embodiments can be referred to.

以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应所述以权利要求的保护范围为准。The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims (26)

1.一种下行功率分配参数的通知方法,其特征在于,包括:A method for notifying a downlink power allocation parameter, comprising: 基站向终端发送频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;The base station sends a frequency-specific downlink power allocation parameter to the terminal, where the frequency-specific downlink power allocation parameter includes N parameters, and the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2; 所述基站接收所述终端发送的所述信道状态信息,所述信道状态信息为根据所述频带特定的下行功率分配参数获得的信道状态信息。The base station receives the channel state information sent by the terminal, and the channel state information is channel state information obtained according to the downlink power allocation parameter specified by the frequency band. 2.根据权利要求1所述的方法,其特征在于,2. The method of claim 1 wherein: 所述N个参数为第一类参数;The N parameters are first type parameters; 所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit. 3.根据权利要求1或2所述的方法,其特征在于,3. Method according to claim 1 or 2, characterized in that 所述N个频带中任两个频带在频域上部分重叠或者不重叠。Any two of the N frequency bands partially overlap or do not overlap in the frequency domain. 4.根据权利要求1-3中任一项所述的方法,其特征在于,The method according to any one of claims 1 to 3, characterized in that 所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands occupies a part of a bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or 所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands occupies the entire bandwidth of the carrier when the base station transmits the reference signal; 所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS. 5.根据权利要求1-4中任一项所述的方法,其特征在于,所述基站向终端发送频带特定的下行功率分配参数,包括:The method according to any one of claims 1-4, wherein the base station sends a frequency band-specific downlink power allocation parameter to the terminal, including: 向终端发送无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。And transmitting, to the terminal, a radio resource control protocol (RRC) signaling, where the RRC signaling includes the frequency band-specific downlink power allocation parameter. 6.根据权利要求1-5中任一项所述的方法,其特征在于,在所述向终端发送频带特定的下行功率分配参数之后,所述接收所述终端发送的所述信道状态信息之前,还包括:The method according to any one of claims 1 to 5, wherein after the transmitting the band-specific downlink power allocation parameter to the terminal, before receiving the channel state information sent by the terminal, ,Also includes: 所述基站在所述N个频带上向所述终端发送参考信号,其中,所述N个频带中每个频带上发送的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。Transmitting, by the base station, a reference signal to the terminal on the N frequency bands, where a transmit power of the reference signal transmitted on each of the N frequency bands corresponds to the frequency band of each frequency band A specific downlink power allocation parameter, the reference signal including a CRS or a CSI-RS. 7.一种下行功率分配参数的通知方法,其特征在于,包括:A method for notifying a downlink power allocation parameter, comprising: 终端接收基站发送的频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;The terminal receives the frequency-specific downlink power allocation parameter sent by the base station, where the frequency-specific downlink power allocation parameter includes N parameters, and the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2; 所述终端根据所述频带特定的下行功率分配参数获得信道状态信息;The terminal obtains channel state information according to the frequency-specific downlink power allocation parameter of the frequency band; 所述终端将所述信道状态信息发送给所述基站。The terminal transmits the channel state information to the base station. 8.根据权利要求7所述的方法,其特征在于,8. The method of claim 7 wherein: 所述N个参数为第一类参数;The N parameters are first type parameters; 所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit. 9.根据权利要求7或8所述的方法,其特征在于,9. A method according to claim 7 or claim 8 wherein: 所述N个频带中任意两个频带在频域上部分重叠或者不重叠。Any two of the N frequency bands partially overlap or do not overlap in the frequency domain. 10.根据权利要求9所述的方法,其特征在于,10. The method of claim 9 wherein: 所述N个频带中每一个频带在所述基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands occupies a part of a bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or 所述N个频带中每一个频带在所述基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands occupies the entire bandwidth of the carrier when the base station transmits the reference signal; 所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS. 11.根据权利要求7-10中任一项所述的方法,其特征在于,所述终端接收基站发送的频带特定的下行功率分配参数,包括:The method according to any one of claims 7 to 10, wherein the terminal receives a frequency band-specific downlink power allocation parameter sent by the base station, including: 所述终端接收基站发送的无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。The terminal receives the radio resource control protocol RRC signaling sent by the base station, where the RRC signaling includes the frequency band-specific downlink power allocation parameter. 12.根据权利要求7-11中任一项所述的方法,其特征在于,所述终端在接收所述下行功率分配参数之后,将所述信道状态信息发送给所述基站之前,还包括:The method according to any one of claims 7 to 11, wherein, after the terminal transmits the channel state information to the base station after receiving the downlink power allocation parameter, the method further includes: 所述终端在所述N个频带上接收参考信号,所述N个频带中每个频带上的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。The terminal receives a reference signal on the N frequency bands, and a transmit power of the reference signal on each of the N frequency bands corresponds to the frequency band-specific downlink power allocation parameter of each frequency band, The reference signal includes a CRS or a CSI-RS. 13.一种下行功率分配参数的通知装置,其特征在于,包括:A notification device for downlink power allocation parameters, comprising: 发送单元,用于向终端发送频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;a sending unit, configured to send a frequency band-specific downlink power allocation parameter to the terminal, where the frequency band-specific downlink power allocation parameter includes N parameters, where the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2; 接收单元,用于接收所述终端发送的所述信道状态信息,所述信道状态信息为根据所述频带特定的下行功率分配参数获得的信道状态信息。And a receiving unit, configured to receive the channel state information sent by the terminal, where the channel state information is channel state information obtained according to the downlink power allocation parameter specified by the frequency band. 14.根据权利要求13所述的装置,其特征在于,14. Apparatus according to claim 13 wherein: 所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;The N parameters of the frequency band-specific downlink power allocation parameters sent by the sending unit are first type parameters; 所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit. 15.根据权利要求13或14所述的装置,其特征在于,15. Apparatus according to claim 13 or claim 14 wherein: 所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Any two of the N frequency bands of the frequency band-specific downlink power allocation parameters transmitted by the transmitting unit partially overlap or do not overlap in the frequency domain. 16.根据权利要求13-15任一项所述的装置,其特征在于,16. Apparatus according to any of claims 13-15, wherein 所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the sending unit occupies a partial bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or 所述发送单元发送的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands in the frequency band-specific downlink power allocation parameter sent by the sending unit occupies the entire bandwidth of the carrier when the base station transmits the reference signal; 所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS. 17.根据权利要求13-16中任一项所述的装置,其特征在于,所述发送单元,用于:The device according to any one of claims 13 to 16, wherein the transmitting unit is configured to: 向终端发送无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。And transmitting, to the terminal, a radio resource control protocol (RRC) signaling, where the RRC signaling includes the frequency band-specific downlink power allocation parameter. 18.根据权利要求13-17中任一项所述的装置,其特征在于,所述发送单元,还用于:The device according to any one of claims 13-17, wherein the sending unit is further configured to: 在所述N个频带上向所述终端发送参考信号,其中,所述N个频带中每个频带上发送的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。Transmitting a reference signal to the terminal on the N frequency bands, wherein a transmit power of the reference signal transmitted on each of the N frequency bands corresponds to the frequency band-specific downlink of each frequency band A power allocation parameter, the reference signal comprising a CRS or a CSI-RS. 19.一种下行功率分配参数的通知装置,其特征在于,包括:A notification device for a downlink power allocation parameter, comprising: 接收单元,用于接收基站发送的频带特定的下行功率分配参数,所述频带特定的下行功率分配参数包括N个参数,所述N个参数分别对应N个频带,所述N大于或等于2;a receiving unit, configured to receive a frequency-specific downlink power allocation parameter sent by the base station, where the frequency-specific downlink power allocation parameter includes N parameters, where the N parameters respectively correspond to N frequency bands, and the N is greater than or equal to 2; 获得单元,用于根据接收单元接收的所述频带特定的下行功率分配参数获得信道状态信息;And an obtaining unit, configured to obtain channel state information according to the frequency band-specific downlink power allocation parameter received by the receiving unit; 发送单元,用于将获得单元获得的所述信道状态信息发送给所述基站。And a sending unit, configured to send the channel state information obtained by the obtaining unit to the base station. 20.根据权利要求19所述的装置,其特征在于,20. Apparatus according to claim 19 wherein: 所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个参数为第一类参数;The N parameters in the frequency band-specific downlink power allocation parameters received by the receiving unit are first type parameters; 所述第一类参数为第一比值参数,所述第一比值参数为EPREPDSCH与EPRECRS的比值,所述EPREPDSCH表示物理下行共享信道PDSCH资源单元上的能量,所述EPRECRS表示公共参考信号CRS资源单元上的能量;或者,所述第一类参数为第二比值参数,所述第二比值参数为EPREPDSCH与EPRECSI-RS的比值,所述EPRECSI-RS表示信道状态信息参考信号CSI-RS资源单元上的能量。The first type parameter is a first ratio parameter, the first ratio parameter is a ratio of an EPRE PDSCH to an EPRE CRS , the EPRE PDSCH represents an energy on a physical downlink shared channel PDSCH resource unit, and the EPRE CRS represents a common reference. The energy on the signal CRS resource unit; or the first type parameter is a second ratio parameter, the second ratio parameter is a ratio of an EPRE PDSCH to an EPRE CSI-RS , and the EPRE CSI-RS indicates a channel state information reference. The energy on the signal CSI-RS resource unit. 21.根据权利要求19或20所述的装置,其特征在于,21. Apparatus according to claim 19 or claim 20 wherein: 所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个频带中任两个频带在频域上部分重叠或者不重叠。Any two of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiving unit partially overlap or do not overlap in the frequency domain. 22.根据权利要求21所述的装置,其特征在于,22. Apparatus according to claim 21 wherein: 所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在所述基站发射参考信号时占用载波的部分带宽或者部分物理资源块;或者,Each of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiving unit occupies a part of a bandwidth or a part of a physical resource block of the carrier when the base station transmits the reference signal; or 所述接收单元接收的所述频带特定的下行功率分配参数中的所述N个频带中每一个频带在所述基站发射参考信号时占用载波的全部带宽;Each of the N frequency bands of the frequency band-specific downlink power allocation parameters received by the receiving unit occupies the entire bandwidth of the carrier when the base station transmits the reference signal; 所述参考信号为CRS或CSI-RS。The reference signal is a CRS or a CSI-RS. 23.根据权利要求19-22中任一项所述的装置,其特征在于,所述接收单元,用于:The device according to any one of claims 19 to 22, wherein the receiving unit is configured to: 接收基站发送的无线资源控制协议RRC信令,所述RRC信令中包括所述频带特定的下行功率分配参数。Receiving radio resource control protocol RRC signaling sent by the base station, where the RRC signaling includes the frequency band-specific downlink power allocation parameter. 24.根据权利要求19-23中任一项所述的装置,其特征在于,所述接收单元进一步用于:在接收所述下行功率分配参数之后,将所述信道状态信息发送给所述基站之前,在所述N个频带上接收参考信号,所述N个频带中每个频带上的所述参考信号的发射功率对应于所述每个频带的所述频带特定的下行功率分配参数,所述参考信号包括CRS或CSI-RS。The device according to any one of claims 19 to 23, wherein the receiving unit is further configured to: after receiving the downlink power allocation parameter, send the channel state information to the base station Previously, a reference signal is received on the N frequency bands, and a transmit power of the reference signal on each of the N frequency bands corresponds to the frequency band-specific downlink power allocation parameter of each frequency band, The reference signal includes a CRS or a CSI-RS. 25.一种计算机存储介质,其特征在于,用于保存计算机指令,所述指令被基站执行时,使得所述基站执行权利要求1-6任一项所述的方法。25. A computer storage medium, for storing computer instructions, the instructions being executed by a base station, causing the base station to perform the method of any of claims 1-6. 26.一种计算机存储介质,其特征在于,用于保存计算机指令,所述指令被终端执行时,使得所述终端执行权利要求7-12任一项所述的方法。A computer storage medium for storing computer instructions, the instructions being executed by a terminal, causing the terminal to perform the method of any one of claims 7-12.
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