WO2017024922A1

WO2017024922A1 - Power control method, device and system

Info

Publication number: WO2017024922A1
Application number: PCT/CN2016/090176
Authority: WO
Inventors: 李汉涛; 李振宇
Original assignee: 华为技术有限公司
Priority date: 2015-08-13
Filing date: 2016-07-15
Publication date: 2017-02-16
Also published as: CN106455029A

Abstract

An embodiment of the present invention discloses a power control method, device and system, the method comprising: a base station determines a transmission power of a reference signal of a first cell in a second instant; the base station determines first power information according to the transmission power of the reference signal of the first cell in the second instant; the base station in a first instant sends to a terminal by a downlink physical channel of a second cell the first power information so as to obtain for the terminal the transmission power in the second instant of a reference signal of the first cell determined according to the first power information. Through the above method, a terminal is quickly notified when it is determined that a transmission power of a reference signal of a primary cell or secondary cell has changed, thus realizing millisecond-level fast power control and reducing signaling overheads. An embodiment of the present invention further discloses a power control device and system.

Description

功率控制的方法、装置和***Power control method, device and system

本申请要求于2015年08月13日提交中国专利局、申请号为201510498157.6、发明名称为“功率控制的方法、装置和***”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims priority to Chinese Patent Application No. 201510498157.6, entitled "Method, Apparatus and System for Power Control," filed on Aug. 13, 2015, the entire contents of in.

技术领域Technical field

本发明实施例涉及通信领域，尤其涉及功率控制的方法、装置和***。Embodiments of the present invention relate to the field of communications, and in particular, to a method, apparatus, and system for power control.

背景技术Background technique

许可频谱辅助接入(licensed assisted access，LAA)***是指将许可频谱和免许可频谱通过载波聚合(carrier aggregation，CA)或者非CA的方式在一起使用的无线通信***。其中，许可频谱通常为传统第二代、第三代通信***以及长期演进(long term evolution，LTE)***等由运营商提供的无线通信***所使用的频谱，免许可频谱通常为无线保真(Wireless fidelity，WIFI)***使用的频谱。A licensed spectrum access (LAA) system refers to a wireless communication system in which a licensed spectrum and an unlicensed spectrum are used together by carrier aggregation (CA) or non-CA. Among them, the licensed spectrum is usually the spectrum used by the wireless communication system provided by the operator such as the traditional second-generation and third-generation communication systems and the long term evolution (LTE) system, and the license-free spectrum is usually wireless fidelity ( Wireless fidelity, WIFI) The spectrum used by the system.

一种主流部署场景是将许可频谱和免许可频谱通过CA联合使用的场景，即将工作在许可频谱上的小区作为主小区，将工作在免许可频谱上的小区作为辅小区，其中主服务小区和辅服务小区可以共站部署，也可以是非共站部署，两个服务小区之间有理想或者非理想的回传路径。A mainstream deployment scenario is a scenario in which a licensed spectrum and an unlicensed spectrum are jointly used by a CA. A cell operating on the licensed spectrum is used as a primary cell, and a cell operating on the unlicensed spectrum is used as a secondary cell, where the primary serving cell and the primary serving cell The secondary service cell can be deployed in a common station or a non-common station, and there is an ideal or non-ideal backhaul path between the two serving cells.

另一种部署场景为免许可频谱独立使用(Standalone)的场景，即免许可频谱作为独立的载波工作的场景，工作在免许可频谱上的服务小区可以提供独立接入功能，不需要通过工作在许可频谱上的小区的辅助。Another deployment scenario is a scenario where the license-free spectrum is used independently (Standalone), that is, the scenario where the unlicensed spectrum operates as an independent carrier. The serving cell operating on the unlicensed spectrum can provide independent access functions without working through Auxiliary to the cell on the licensed spectrum.

通过增加的免许可频谱，LAA***可以提高智能终端数据速率并降低拥塞，有效解决室内数据流量的增长。With the addition of unlicensed spectrum, the LAA system can increase the data rate of intelligent terminals and reduce congestion, effectively solving the growth of indoor data traffic.

由于在LAA***中免许可频谱是和WIFI***共享的，因而需要考虑***间对信道使用的公平性。同时，各地区的频谱法规也对该类免许可频谱的信道功率、占用时长等都增加了约束。Since the license-free spectrum is shared with the WIFI system in the LAA system, it is necessary to consider the fairness of channel usage between systems. At the same time, the spectrum regulations of various regions have also increased the constraints on the channel power and occupation time of such unlicensed spectrum.

通常为了减少对WIFI***的干扰，LAA***会对全带宽功率的发送进行控制，例如，对参考信号的功率进行控制。尤其在引入先听后说(listen before talk，LBT)技术以后，LAA***会先检测免许可频谱的信道功率，确定载波发射功率，对实时性的要求更加严格，需要实现毫秒级别的小区级功率控制。Usually, in order to reduce interference to the WIFI system, the LAA system controls the transmission of full bandwidth power, for example, the power of the reference signal. Especially after introducing the first listen (listen before After the talk, LBT technology, the LAA system will first detect the channel power of the unlicensed spectrum and determine the carrier transmit power. The real-time requirements are more stringent, and it is necessary to implement the cell-level power control at the millisecond level.

如何通过快速的功率控制在频谱法规的约束下有效保证干扰水平、提升频谱使用效率进而提升网络容量是LAA***的一个重要课题。How to effectively ensure the interference level, improve the spectrum utilization efficiency and improve the network capacity through fast power control under the constraints of spectrum regulations is an important issue of the LAA system.

现有功率控制中，由于参考信号的发射功率相对稳定，一般通过***消息通知到终端，而***消息的调度速度往往需要上百毫秒，无法实现快速的功率控制。In the existing power control, since the transmission power of the reference signal is relatively stable, the terminal is generally notified to the terminal through the system message, and the scheduling speed of the system message often needs hundreds of milliseconds, and fast power control cannot be realized.

发明内容Summary of the invention

有鉴于此，本发明实施例提供了功率控制的方法、装置和***，以实现毫秒级的快速功率控制。In view of this, embodiments of the present invention provide a method, apparatus, and system for power control to achieve fast power control at the millisecond level.

第一方面，本发明实施例提供了一种功率控制的方法，所述方法包括：In a first aspect, an embodiment of the present invention provides a method for power control, where the method includes:

基站确定第一小区的参考信号在第二时刻的发射功率；Determining, by the base station, a transmit power of the reference signal of the first cell at the second moment;

所述基站根据所述第一小区的参考信号在所述第二时刻的发射功率确定第一功率信息；Determining, by the base station, first power information according to a transmit power of the reference signal of the first cell at the second moment;

所述基站在第一时刻通过第二小区的下行物理信道向终端发送所述第一功率信息，以使得所述终端根据所述第一功率信息确定所述第一小区的参考信号在所述第二时刻的发射功率，或者，所述基站在第一时刻通过媒体接入控制层MAC控制单元CE向终端发送所述第一功率信息，以使得所述终端根据所述第一功率信息确定所述第一小区的参考信号在所述第二时刻的发射功率；Sending, by the base station, the first power information to the terminal by using a downlink physical channel of the second cell, so that the terminal determines, according to the first power information, that the reference signal of the first cell is in the first The second power transmission, or the base station sends the first power information to the terminal through the medium access control layer MAC control unit CE at the first moment, so that the terminal determines the information according to the first power information. The transmit power of the reference signal of the first cell at the second moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被所述基站调度。The second time is later than the first time k transmission time intervals TTI, k is an integer greater than or equal to 0, the downlink physical channel is scrambled by the power wireless network identifier RNTI, and is per TTI Base station scheduling.

在第一方面的第一种可能的实现方式中，所述方法之前，还包括：In a first possible implementation manner of the first aspect, before the method, the method further includes:

所述基站通过所述第二小区的广播信道发送***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；其中，所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。The base station sends a system message by using a broadcast channel of the second cell, where the system message carries initial power information of a reference signal of the first cell, or initial power information of a reference signal of the first cell Power information of a reference signal supported by the first cell; wherein the initial The power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal.

结合第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述初始功率等级的变化量，或者，所述第一小区的参考信号的初始功率值相对于所述初始功率值的变化量。With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first power information includes at least one of: a reference signal of the first cell is in the a power level of the second time, or a power value of the reference signal of the first cell at the second time, or a power level of the reference signal of the first cell at the second time relative to the The amount of change of the power level at the first time, or the amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time, or the first cell The amount of change of the power level of the reference signal relative to the initial power level at the second time, or the amount of change of the initial power value of the reference signal of the first cell relative to the initial power value.

在第一方面的第三种可能的实现方式中，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量。In a third possible implementation manner of the first aspect, the first power information includes at least one of: a power level of the reference signal of the first cell at the second moment, or the first a power value of the reference signal of the cell at the second time, or a change amount of the power level of the reference signal of the first cell at the second time relative to a power level of the first time, or The amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time.

结合第一方面以及第一方面第一种到第三种中任意一种可能的实现方式，在第四种可能的实现方式中，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。With reference to the first aspect, and any one of the foregoing first to third possible implementation manners, in the fourth possible implementation, the downlink physical channel includes: a physical downlink control channel PDCCH, or physical The hybrid automatic repeat indication channel PHICH, or physical control format indication channel.

结合第一方面以及第一方面第一种到第四种中任意一种可能的实现方式，，在第五种可能的实现方式中，所述第一小区与所述第二小区为同一小区。With reference to the first aspect, and any one of the first to fourth possible implementations of the first aspect, in a fifth possible implementation, the first cell and the second cell are the same cell.

结合第一方面以及第一方面第一种到第四种中任意一种可能的实现方式，，在第六种可能的实现方式中，所述第一小区为辅小区，所述第二小区为主小区；所述第一功率信息还包括所述第一小区的小区标识。With reference to the first aspect, and any one of the first to fourth possible implementations of the first aspect, in a sixth possible implementation, the first cell is a secondary cell, and the second cell is The primary cell; the first power information further includes a cell identifier of the first cell.

第二方面，本发明实施例提供了一种功率控制的方法，所述方法包括：In a second aspect, an embodiment of the present invention provides a method for power control, where the method includes:

基站确定第一小区的参考信号在第二时刻的功率等级； Determining, by the base station, a power level of the reference signal of the first cell at the second moment;

所述基站在第一时刻通过所述第一小区发送下行物理信号，以使得终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级；The base station sends a downlink physical signal by using the first cell at the first time, so that the terminal determines, according to the downlink physical signal, a power level of the reference signal of the first cell at the second time;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。The second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0.

在第二方面的第一种可能的实现方式中，所述第二小区的下行物理信号包括功率加扰参考信号；In a first possible implementation manner of the second aspect, the downlink physical signal of the second cell includes a power scrambled reference signal;

所述基站在第一时刻通过所述第一小区发送下行物理信号，包括：The sending, by the base station, the downlink physical signal by using the first cell at the first moment, including:

所述基站根据所述第一小区的参考信号在第二时刻的功率等级对小区专用参考信号序列加扰获得所述功率加扰参考信号；The base station scrambles the cell-specific reference signal sequence according to the power level of the reference signal of the first cell at the second time to obtain the power scrambled reference signal;

所述基站在所述第一时刻通过所述第一小区发送所述功率加扰参考信号，其中，所述第一时刻包括用于小区专用参考信号发送的时域位置。The base station sends the power scrambled reference signal by using the first cell at the first moment, where the first moment includes a time domain location for cell-specific reference signal transmission.

在第二方面的第二种可能的实现方式中，所述第二小区的下行物理信号包括功率通知序列；In a second possible implementation manner of the second aspect, the downlink physical signal of the second cell includes a power notification sequence;

所述基站确定与所述第一小区的参考信号在第二时刻的功率等级对应的序列作为功率通知序列；Determining, by the base station, a sequence corresponding to a power level of the reference signal of the first cell at a second moment as a power notification sequence;

所述基站在第一时刻通过所述第一小区发送所述功率通知序列，其中，所述第一时刻包括用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，所述基站检测到免许可频谱的空闲信道的时域位置。The base station sends the power notification sequence by using the first cell at a first moment, where the first time includes a time domain location for primary synchronization signal transmission, or a time domain for secondary synchronization signal transmission Location, or the base station detects the time domain location of the idle channel of the unlicensed spectrum.

第三方面，本发明实施例提供了一种功率控制的方法，所述方法包括：In a third aspect, an embodiment of the present invention provides a method for power control, where the method includes:

基站确定第一小区的参考信号在第二时刻的发射功率变化信息；Determining, by the base station, transmit power change information of the reference signal of the first cell at the second moment;

所述基站在第一时刻通过第二小区向终端发送所述发射功率变化信息；Sending, by the second base station, the transmit power change information to the terminal by using the second cell at the first moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和所述第二时刻。The second time is later than the first time k transmission time intervals TTI, where k is an integer greater than or equal to 0, and the transmission power change information includes at least one of the following: a reference signal transmission of the first cell A power change mode and the second time.

在第三方面的第一种可能的实现方式中，所述第一小区的参考信号的发射功率变化模式包括至少一个周期及该周期对应的功率信息。In a first possible implementation manner of the third aspect, the transmitting of the reference signal of the first cell The power change mode includes at least one period and power information corresponding to the period.

结合第三方面第一种可能的实现方式，在第二种可能的实现方式中，所述方法之前，还包括：With reference to the first possible implementation manner of the third aspect, in the second possible implementation manner, before the method, the method further includes:

所述基站通过所述第二小区的广播信道发送***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。The base station sends a system message by using a broadcast channel of the second cell, where the system message carries initial power information of a reference signal of the first cell, or initial power information of a reference signal of the first cell The power information of the reference signal supported by the first cell; the initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal, or , at least one power value of the reference signal.

结合第三方面第二种可能的实现方式，在第三种可能的实现方式中，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值，或者，所述周期的功率等级相对于所述周期的前一周期的功率等级的变化量，或者。所述周期的功率值相对于所述周期的前一周期的功率值的变化量，或者，所述周期的功率等级相对于所述初始功率等级的变化量，或者所述周期的功率值相对于所述初始功率值的变化量。With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner, the power information corresponding to the period includes: a power level of the period, or a power value of the period, or The amount of change in the power level of the period relative to the power level of the previous period of the period, or. The amount of change of the power value of the period relative to the power value of the previous period of the period, or the amount of change of the power level of the period relative to the initial power level, or the power value of the period relative to The amount of change in the initial power value.

结合第三方面第一种可能的实现方式，在第四种可能的实现方式中，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值。With reference to the first possible implementation manner of the third aspect, in a fourth possible implementation, the power information corresponding to the period includes: a power level of the period, or a power value of the period.

结合第三方面，或者第第三方面第一至第四种任意一种可能的实现方式，在第五种可能的实现方式中，所述基站在第一时刻通过第二小区向终端发送所述发射功率变化信息，包括：With reference to the third aspect, or any one of the first to fourth possible implementation manners of the third aspect, in a fifth possible implementation, the base station sends the Transmit power change information, including:

所述基站在第一时刻通过第二小区的专用控制信道向终端发送所述发射功率变化信息；或者，Transmitting, by the base station, the transmit power change information to the terminal by using a dedicated control channel of the second cell at a first moment; or

所述基站在第一时刻通过第二小区的广播信道向终端发送所述发射功率变化信息；或者，Transmitting, by the base station, the transmit power change information to the terminal by using a broadcast channel of the second cell at a first moment; or

所述基站在第一时刻通过第二小区的下行物理信道向终端所述发射功率变化信息，所述第二小区的下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被所述基站调度。Transmitting, by the base station, the transmit power change information to the terminal by using the downlink physical channel of the second cell at the first time, the downlink physical channel of the second cell is scrambled by the power radio network identifier RNTI, and each TTI is scheduled by the base station .

结合第三方面第五种可能的实现方式，在第六种可能的实现方式中，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。With reference to the fifth possible implementation manner of the third aspect, in a sixth possible implementation manner, The downlink physical channel includes: a physical downlink control channel PDCCH, or a physical hybrid automatic retransmission indication channel PHICH, or a physical control format indication channel.

结合第三方面，或者第三方面第一至第六种任意一种可能的实现方式，在第七种可能的实现方式中，所述第一小区与所述第二小区为同一小区。With reference to the third aspect, or any one of the first to the sixth possible implementation manners of the third aspect, in the seventh possible implementation manner, the first cell and the second cell are the same cell.

结合第三方面，或者第三方面第一至第六种任意一种可能的实现方式，在第八种可能的实现方式中，所述第一小区为辅小区，所述第二小区为主小区；所述发射功率变化信息还包括所述第一小区的小区标识。With reference to the third aspect, or any one of the first to the sixth possible implementation manners of the third aspect, in the eighth possible implementation, the first cell is a secondary cell, and the second cell is a primary cell. The transmit power change information further includes a cell identifier of the first cell.

第四方面，本发明实施例提供了一种功率控制的方法，所述方法包括：In a fourth aspect, an embodiment of the present invention provides a method for power control, where the method includes:

终端接收基站在第一时刻通过第二小区的下行物理信道发送的第一功率信息，或者，终端接收基站在第一时刻通过媒体接入控制层MAC控制单元CE发送的第一功率信息；The terminal receives the first power information that is sent by the base station by using the downlink physical channel of the second cell at the first time, or the terminal receives the first power information that is sent by the base station by the medium access control layer MAC control unit CE at the first moment;

所述终端根据所述第一功率信息确定第一小区的参考信号在第二时刻的发射功率；Determining, by the terminal, the transmit power of the reference signal of the first cell at the second moment according to the first power information;

在第四方面的第一种可能的实现方式中，所述方法之前，还包括：In a first possible implementation manner of the fourth aspect, before the method, the method further includes:

所述终端接收所述基站通过所述第二小区的广播信道发送的***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；其中，所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。Receiving, by the terminal, a system message that is sent by the base station by using a broadcast channel of the second cell, where the system message carries initial power information of a reference signal of the first cell, or a reference signal of the first cell The initial power information and the power information of the reference signal supported by the first cell; wherein the initial power information is an initial power level or an initial power value, and the power information of the supported reference signal of the first cell includes a reference signal At least one power level, or at least one power value of the reference signal.

结合第四方面的第一种可能的实现方式，在第四方面的第二种可能的实现方式中，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述初始功率等级的变化量，或者，所述第一小区的参考信号的初始功率值相对于所述初始功率值的变化量。With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the first power information includes at least one of: a reference signal of the first cell is in the a power level of the second time, or a power value of the reference signal of the first cell at the second time, or a power level of the reference signal of the first cell at the second time relative to the The amount of change of the power level at the first time, or the amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time, or the first cell The amount of change of the power level of the reference signal relative to the initial power level at the second time, or the amount of change of the initial power value of the reference signal of the first cell relative to the initial power value.

在第四方面的第三种可能的实现方式中，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量。In a third possible implementation manner of the fourth aspect, the first power information includes at least one of: a power level of the reference signal of the first cell at the second moment, or the first a power value of the reference signal of the cell at the second time, or a change amount of the power level of the reference signal of the first cell at the second time relative to a power level of the first time, or The amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time.

结合第四方面，或者第四方面第一到第三种中任意一种可能的实现方式，在第四种可能的实现方式中，所述下行物理信道包括：包括物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。With reference to the fourth aspect, or any one of the first to the third possible implementation manners, in the fourth possible implementation, the downlink physical channel includes: including a physical downlink control channel PDCCH, or The physical hybrid automatically retransmits the indication channel PHICH, or the physical control format indicates the channel.

结合第四方面，或者第四方面第一到第四种中任意一种可能的实现方式，在第五种可能的实现方式中，所述第一小区与所述第二小区为同一小区。With reference to the fourth aspect, or any one of the first to fourth possible implementation manners of the fourth aspect, in the fifth possible implementation manner, the first cell and the second cell are the same cell.

结合第四方面，或者第四方面第一到第四种中任意一种可能的实现方式，在第六种可能的实现方式中，所述第一小区为辅小区，所述第二小区为主小区；所述第一功率信息还包括所述第一小区的小区标识。With reference to the fourth aspect, or any one of the foregoing possible implementation manners of the fourth aspect, the first cell is a secondary cell, and the second cell is a primary cell. a cell; the first power information further includes a cell identifier of the first cell.

第五方面，本发明实施例提供了一种功率控制的方法，所述方法包括：In a fifth aspect, an embodiment of the present invention provides a method for power control, where the method includes:

终端接收基站在第一时刻通过第一小区发送的下行物理信号；Receiving, by the terminal, a downlink physical signal that is sent by the base station by using the first cell at the first moment;

所述终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级；Determining, by the terminal, a power level of the reference signal of the first cell at a second moment according to the downlink physical signal;

在第五方面的第一种可能的实现方式中，所述第二小区的下行物理信号包括功率加扰参考信号，所述第一时刻包括用于小区专用参考信号发送的时域位置；In a first possible implementation manner of the fifth aspect, the downlink physical signal of the second cell includes a power scrambled reference signal, where the first time includes a time domain bit for cell-specific reference signal transmission. Set

所述终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级，包括：Determining, by the terminal, the power level of the reference signal of the first cell at the second moment according to the downlink physical signal, including:

所述终端通过盲检测确定所述功率加扰参考信号对应的小区专用参考信号序列；Determining, by the blind detection, a cell-specific reference signal sequence corresponding to the power scrambled reference signal;

所述终端根据所述小区专用参考信号序列对所述功率加扰参考信号解扰确定所述第一小区的参考信号在第二时刻的功率等级。The terminal descrambles the power scrambled reference signal according to the cell-specific reference signal sequence to determine a power level of the reference signal of the first cell at a second moment.

在第五方面的第二种可能的实现方式中，所述第二小区的下行物理信号包括功率通知序列；所述第一时刻包括用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，所述基站检测到免许可频谱的空闲信道的时域位置；In a second possible implementation manner of the fifth aspect, the downlink physical signal of the second cell includes a power notification sequence, where the first time includes a time domain location for primary synchronization signal transmission, or a time domain location of the synchronization signal transmission, or a time domain location of the idle channel in which the base station detects the unlicensed spectrum;

所述终端根据所述功率通知序列确定所述第一小区的参考信号在第二时刻的功率等级。The terminal determines, according to the power notification sequence, a power level of the reference signal of the first cell at a second moment.

第六方面，本发明实施例提供了一种功率控制的方法，所述方法包括：In a sixth aspect, an embodiment of the present invention provides a method for power control, where the method includes:

终端接收基站在第一时刻通过第二小区发送的发射功率变化信息；Receiving, by the terminal, transmit power change information sent by the base station by using the second cell at the first moment;

所述终端根据所述发射功率变化信息确定第一小区的参考信号在第二时刻的发射功率；Determining, by the terminal, the transmit power of the reference signal of the first cell at the second moment according to the transmit power change information;

在第六方面的第一种可能的实现方式中，所述第一小区的参考信号的发射功率变化模式包括至少一个周期及该周期对应的功率信息。In a first possible implementation manner of the sixth aspect, the transmit power change mode of the reference signal of the first cell includes at least one period and power information corresponding to the period.

结合第六方面第一种可能的实现方式，在第二种可能的实现方式中，所述方法之前，还包括：With reference to the first possible implementation manner of the sixth aspect, in the second possible implementation manner, before the method, the method further includes:

所述终端接收所述基站通过所述第二小区的广播信道发送的***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。Receiving, by the terminal, a system message sent by the base station by using a broadcast channel of the second cell, where The initial power information of the reference signal of the first cell, or the initial power information of the reference signal of the first cell and the power information of the reference signal supported by the first cell; the initial power The information is an initial power level or an initial power value, and the power information of the supported reference signal of the first cell includes at least one power level of the reference signal or at least one power value of the reference signal.

结合第六方面第二种可能的实现方式，在第三种可能的实现方式中，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值，或者，所述周期的功率等级相对于所述周期的前一周期的功率等级的变化量，或者。所述周期的功率值相对于所述周期的前一周期的功率值的变化量，或者，所述周期的功率等级相对于所述初始功率等级的变化量，或者所述周期的功率值相对于所述初始功率值的变化量。With reference to the second possible implementation manner of the sixth aspect, in a third possible implementation, the power information corresponding to the period includes: a power level of the period, or a power value of the period, or The amount of change in the power level of the period relative to the power level of the previous period of the period, or. The amount of change of the power value of the period relative to the power value of the previous period of the period, or the amount of change of the power level of the period relative to the initial power level, or the power value of the period relative to The amount of change in the initial power value.

结合第六方面第一种可能的实现方式，在第四种可能的实现方式中，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值。With reference to the first possible implementation manner of the sixth aspect, in a fourth possible implementation, the power information corresponding to the period includes: a power level of the period, or a power value of the period.

结合第六方面，或者第六方面第一至第四种任意一种可能的实现方式，在第五种可能的实现方式中，所述终端接收基站在第一时刻通过第二小区发送的发射功率变化信息，包括：With reference to the sixth aspect, or any one of the first to fourth possible implementation manners of the sixth aspect, in a fifth possible implementation manner, the terminal receives a transmit power that is sent by the base station by using the second cell at the first moment. Change information, including:

所述终端接收所述基站在第一时刻通过第二小区的专用控制信道发送的所述发射功率变化信息；或者，Receiving, by the terminal, the transmit power change information sent by the base station by using a dedicated control channel of the second cell at a first moment; or

所述终端接收所述基站在第一时刻通过第二小区的广播信道发送的所述发射功率变化信息；或者，Receiving, by the terminal, the transmit power change information that is sent by the base station by using a broadcast channel of the second cell at a first moment; or

所述终端接收所述基站在第一时刻通过第二小区的下行物理信道发送的所述发射功率变化信息，所述第二小区的下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被所述基站调度。Receiving, by the terminal, the transmit power change information sent by the base station by using a downlink physical channel of the second cell at a first moment, where the downlink physical channel of the second cell is scrambled by the power radio network identifier RNTI, and each TTI is The base station schedules.

结合第六方面第五种可能的实现方式，在第六种可能的实现方式中，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。With reference to the fifth possible implementation manner of the sixth aspect, in a sixth possible implementation, the downlink physical channel includes: a physical downlink control channel PDCCH, or a physical hybrid automatic retransmission indicator channel PHICH, or physical control The format indicates the channel.

结合第六方面，或者第六方面第一至第六种任意一种可能的实现方式，在第七种可能的实现方式中，所述第一小区与所述第二小区为同一小区。Combining the sixth aspect, or any one of the first to sixth possible implementation manners of the sixth aspect, In a seventh possible implementation manner, the first cell and the second cell are the same cell.

结合第六方面，或者第六方面第一至第六种任意一种可能的实现方式，在第八种可能的实现方式中，所述第一小区为辅小区，所述第二小区为主小区；所述发射功率变化信息还包括所述第一小区的小区标识。With reference to the sixth aspect, or any one of the first to the sixth possible implementation manners of the sixth aspect, in the eighth possible implementation manner, the first cell is a secondary cell, and the second cell is a primary cell. The transmit power change information further includes a cell identifier of the first cell.

第七方面，本发明实施例提供了一种功率控制的装置，所述装置包括：第一确定单元，第二确定单元和收发单元；其中，According to a seventh aspect, an embodiment of the present invention provides a device for power control, where the device includes: a first determining unit, a second determining unit, and a transceiver unit;

所述第一确定单元用于确定第一小区的参考信号在第二时刻的发射功率；The first determining unit is configured to determine a transmit power of the reference signal of the first cell at the second moment;

所述第二确定单元用于根据所述第一确定单元确定的所述第一小区的参考信号在第二时刻的发射功率确定第一功率信息；The second determining unit is configured to determine, according to the transmit power of the reference signal of the first cell determined by the first determining unit, the first power information at a second time;

所述收发单元用于在第一时刻通过第二小区的下行物理信道向终端发送所述第一功率信息，以使得所述终端根据所述第一功率信息确定所述第一小区的参考信号在所述第二时刻的发射功率，或者，所述收发单元用于在第一时刻通过媒体接入控制层MAC控制单元CE向终端发送所述第一功率信息，以使得所述终端根据所述第一功率信息确定所述第一小区的参考信号在所述第二时刻的发射功率；The transceiver unit is configured to send the first power information to the terminal by using a downlink physical channel of the second cell at a first time, so that the terminal determines, according to the first power information, that the reference signal of the first cell is The transmitting power of the second time, or the transceiver unit is configured to send the first power information to the terminal by using a media access control layer MAC control unit CE at a first moment, so that the terminal is configured according to the Determining, by a power information, a transmit power of the reference signal of the first cell at the second moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被基站调度。The second time is later than the first time k transmission time intervals TTI, k is an integer greater than or equal to 0, the downlink physical channel is scrambled by the power wireless network identifier RNTI, and is used by the base station every TTI Scheduling.

在第七方面的第一种可能的实现方式中，所述收发单元还用于通过所述第二小区的广播信道发送***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；其中，所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。In a first possible implementation manner of the seventh aspect, the transceiver unit is further configured to send a system message by using a broadcast channel of the second cell, where the system message carries an initial of a reference signal of the first cell. The power information, or the initial power information of the reference signal of the first cell and the power information of the reference signal supported by the first cell; wherein the initial power information is an initial power level or an initial power value, where the The power information of the reference signal supported by a cell includes at least one power level of the reference signal or at least one power value of the reference signal.

结合第七方面的第一种可能的实现方式，在第二种可能的实现方式中，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述初始功率等级的变化量，或者，所述第一小区的参考信号的初始功率值相对于所述初始功率值的变化量。With reference to the first possible implementation manner of the seventh aspect, in a second possible implementation, the first power information includes at least one of: a reference signal of the first cell at the second moment a power level, or a power value of the reference signal of the first cell at the second moment, or, The amount of change of the power level of the reference signal of the first cell with respect to the power level of the first time, or the power value of the reference signal of the first cell at the second time The amount of change in the power value relative to the first time, or the amount of change in the power level of the reference signal of the first cell at the second time relative to the initial power level, or the first The amount of change in the initial power value of the reference signal of the cell relative to the initial power value.

在第七方面的第三种可能的实现方式中，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量。In a third possible implementation manner of the seventh aspect, the first power information includes at least one of: a power level of the reference signal of the first cell at the second moment, or the first a power value of the reference signal of the cell at the second time, or a change amount of the power level of the reference signal of the first cell at the second time relative to a power level of the first time, or The amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time.

结合第七方面，或者第七方面第一到第三种中任意一种可能的实现方式，在第四种可能的实现方式中，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。With reference to the seventh aspect, or any one of the first to the third possible implementation manners of the seventh aspect, in the fourth possible implementation manner, the downlink physical channel includes: a physical downlink control channel PDCCH, or physical The hybrid automatic repeat indication channel PHICH, or physical control format indication channel.

结合第七方面，或者第七方面第一到第四种中任意一种可能的实现方式，在第五种可能的实现方式中，所述第一小区与所述第二小区为同一小区。With reference to the seventh aspect, or any one of the first to fourth possible implementation manners of the seventh aspect, in the fifth possible implementation manner, the first cell and the second cell are the same cell.

结合第七方面，或者第七方面第一到第四种中任意一种可能的实现方式，在第六种可能的实现方式中，所述第一小区为辅小区，所述第二小区为主小区；所述第一功率信息还包括所述第一小区的小区标识。With reference to the seventh aspect, or any one of the first to fourth possible implementation manners of the seventh aspect, in a sixth possible implementation manner, the first cell is a secondary cell, and the second cell is a primary cell. a cell; the first power information further includes a cell identifier of the first cell.

结合第七方面第五到第六种中任意一种可能的实现方式，在第七种可能的实现方式中，所述装置部署在基站。In conjunction with any of the possible implementations of the fifth to sixth aspects of the seventh aspect, in a seventh possible implementation, the apparatus is deployed at a base station.

第八方面，本发明实施例提供了一种功率控制的装置，所述装置包括：确定单元和收发单元；其中，In an eighth aspect, an embodiment of the present invention provides a device for power control, where the device includes: a determining unit and a transceiver unit;

所述确定单元用于确定第一小区的参考信号在第二时刻的功率等级；The determining unit is configured to determine a power level of the reference signal of the first cell at the second moment;

所述收发单元用于在第一时刻通过所述第一小区发送下行物理信号，以使得终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级；The transceiver unit is configured to send, by using the first cell, a downlink physical signal, so that the terminal determines, according to the downlink physical signal, the power of the reference signal of the first cell at the second moment. grade;

在第八方面的第一种可能的实现方式中，所述第二小区的下行物理信号包括功率加扰参考信号；In a first possible implementation manner of the eighth aspect, the downlink physical signal of the second cell includes a power scrambled reference signal;

所述收发单元在第一时刻通过所述第一小区发送下行物理信号，包括：Transmitting, by the transceiver unit, the downlink physical signal by using the first cell at the first moment, including:

所述收发单元根据所述第一小区的参考信号在第二时刻的功率等级对小区专用参考信号序列加扰获得所述功率加扰参考信号；The transceiver unit scrambles the cell-specific reference signal sequence according to the power level of the reference signal of the first cell at the second time to obtain the power scrambled reference signal;

所述收发单元在所述第一时刻通过所述第一小区发送所述功率加扰参考信号，其中，所述第一时刻包括用于小区专用参考信号发送的时域位置。The transceiver unit transmits the power scrambled reference signal by using the first cell at the first moment, where the first moment includes a time domain location for cell-specific reference signal transmission.

在第八方面的第二种可能的实现方式中，所述第二小区的下行物理信号包括功率通知序列；In a second possible implementation manner of the eighth aspect, the downlink physical signal of the second cell includes a power notification sequence;

所述收发单元确定与所述第一小区的参考信号在第二时刻的功率等级对应的序列作为功率通知序列；The transceiver unit determines a sequence corresponding to a power level of the reference signal of the first cell at a second moment as a power notification sequence;

所述收发单元在第一时刻通过所述第一小区发送所述功率通知序列，其中，所述第一时刻包括用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，检测到免许可频谱的空闲信道的时域位置。Transmitting, by the transceiver unit, the power notification sequence by using the first cell at a first moment, where the first time includes a time domain location for primary synchronization signal transmission, or is used for secondary synchronization signal transmission The domain location, or the time domain location of the idle channel in which the unlicensed spectrum is detected.

结合第八方面，或者第八方面第一至第二种可能的实现方式，在第三种可能的实现方式中，所述装置部署在基站。With reference to the eighth aspect, or the first to second possible implementation manners of the eighth aspect, in a third possible implementation manner, the apparatus is deployed at a base station.

第九方面，本发明实施例提供了一种功率控制的装置，所述装置包括：确定单元和收发单元；其中，A ninth aspect, an embodiment of the present invention provides a device for power control, where the device includes: a determining unit and a transceiver unit;

所述确定单元用于确定第一小区的参考信号在第二时刻的发射功率变化信息；The determining unit is configured to determine transmit power change information of the reference signal of the first cell at the second moment;

所述收发单元用于在第一时刻通过第二小区向终端发送所述发射功率变化信息； The transceiver unit is configured to send the transmit power change information to a terminal by using a second cell at a first moment;

在第九方面的第一种可能的实现方式中，所述第一小区的参考信号的发射功率变化模式包括至少一个周期及该周期对应的功率信息。In a first possible implementation manner of the ninth aspect, the transmit power change mode of the reference signal of the first cell includes at least one period and power information corresponding to the period.

结合第九方面第一种可能的实现方式，在第二种可能的实现方式中，所述收发单元还用于通过所述第二小区的广播信道发送***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。With reference to the first possible implementation manner of the ninth aspect, in a second possible implementation, the transceiver unit is further configured to send a system message by using a broadcast channel of the second cell, where the system message carries the Initial power information of the reference signal of the first cell, or initial power information of the reference signal of the first cell and power information of the reference signal supported by the first cell; the initial power information is an initial power level or an initial The power value, the power information of the reference signal supported by the first cell includes at least one power level of the reference signal, or at least one power value of the reference signal.

结合第九方面第二种可能的实现方式，在第三种可能的实现方式中，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值，或者，所述周期的功率等级相对于所述周期的前一周期的功率等级的变化量，或者。所述周期的功率值相对于所述周期的前一周期的功率值的变化量，或者，所述周期的功率等级相对于所述初始功率等级的变化量，或者所述周期的功率值相对于所述初始功率值的变化量。With reference to the second possible implementation manner of the ninth aspect, in a third possible implementation, the power information corresponding to the period includes: a power level of the period, or a power value of the period, or The amount of change in the power level of the period relative to the power level of the previous period of the period, or. The amount of change of the power value of the period relative to the power value of the previous period of the period, or the amount of change of the power level of the period relative to the initial power level, or the power value of the period relative to The amount of change in the initial power value.

结合第九方面第一种可能的实现方式，在第四种可能的实现方式中，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值。With reference to the first possible implementation manner of the ninth aspect, in a fourth possible implementation, the power information corresponding to the period includes: a power level of the period, or a power value of the period.

结合第九方面，或者第九方面第一至第四种中任意一种可能的实现方式，在第五种可能的实现方式中，所述收发单元用于在第一时刻通过第二小区向终端发送所述发射功率变化信息，包括：With reference to the ninth aspect, or any one of the possible implementation manners of the first to fourth aspects of the ninth aspect, in the fifth possible implementation, the transceiver unit is configured to use the second cell to the terminal at the first moment. Sending the transmit power change information, including:

所述收发单元在第一时刻通过第二小区的专用控制信道向终端发送所述发射功率变化信息；或者，Transmitting, by the transceiver unit, the transmit power change information to the terminal by using a dedicated control channel of the second cell at a first moment; or

所述收发单元在第一时刻通过第二小区的广播信道向终端发送所述发射功率变化信息；或者，Transmitting, by the transceiver unit, the transmit power change information to the terminal by using a broadcast channel of the second cell at a first moment; or

所述收发单元在第一时刻通过第二小区的下行物理信道向终端所述发射功率变化信息，所述第二小区的下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被基站调度。Transmitting and transmitting unit transmits the work to the terminal through the downlink physical channel of the second cell at the first moment Rate change information, the downlink physical channel of the second cell is scrambled by the power radio network identifier RNTI, and each TTI is scheduled by the base station.

结合第九方面第五种可能的实现方式，在第六种可能的实现方式中，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。With reference to the fifth possible implementation manner of the ninth aspect, in the sixth possible implementation, the downlink physical channel includes: a physical downlink control channel PDCCH, or a physical hybrid automatic retransmission indicator channel PHICH, or physical control The format indicates the channel.

结合第九方面，或者第九方面第一至第六种中任意一种可能的实现方式，在第七种可能的实现方式中，所述第一小区与所述第二小区为同一小区。With reference to the ninth aspect, or any one of the first to the sixth aspects of the ninth aspect, in the seventh possible implementation, the first cell and the second cell are the same cell.

结合第九方面，或者第九方面第一至第六种中任意一种可能的实现方式，在第八种可能的实现方式中，所述第一小区为辅小区，所述第二小区为主小区；所述发射功率变化信息还包括所述第一小区的小区标识。With reference to the ninth aspect, or any one of the first to the sixth aspects of the ninth aspect, in the eighth possible implementation manner, the first cell is a secondary cell, and the second cell is a primary cell. a cell; the transmit power change information further includes a cell identifier of the first cell.

结合第九方面，或者第九方面第一至第八种中任意一种可能的实现方式，在第九种可能的实现方式中，所述装置部署在基站。With reference to the ninth aspect, or any one of the first to the eighth aspects of the ninth aspect, in a ninth possible implementation manner, the device is deployed in a base station.

第十方面，本发明实施例提供了一种功率控制的装置，所述装置包括：确定单元和收发单元；其中，According to a tenth aspect, an embodiment of the present invention provides a device for power control, where the device includes: a determining unit and a transceiver unit;

所述收发单元用于接收基站在第一时刻通过第二小区的下行物理信道发送的第一功率信息，或者，所述收发单元接收基站在第一时刻通过媒体接入控制层MAC控制单元CE发送的第一功率信息；The transceiver unit is configured to receive first power information that is sent by the base station by using a downlink physical channel of the second cell at the first time, or the receiving and receiving unit receives, by the base station, the medium access control layer MAC control unit CE First power information;

所述确定单元用于根据所述第一功率信息确定第一小区的参考信号在第二时刻的发射功率；The determining unit is configured to determine, according to the first power information, a transmit power of a reference signal of the first cell at a second moment;

在第十方面的第一种可能的实现方式中，所述收发单元还用于接收所述基站通过所述第二小区的广播信道发送的***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；其中，所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。In a first possible implementation manner of the foregoing aspect, the transceiver unit is further configured to receive a system message that is sent by the base station by using a broadcast channel of the second cell, where the system message carries the first cell Initial power information of the reference signal, or initial power information of the reference signal of the first cell and power information of the reference signal supported by the first cell; wherein the initial power information is an initial power level or an initial power Value, power information of the reference signal supported by the first cell At least one power level of the reference signal, or at least one power value of the reference signal.

结合第十方面的第一种可能的实现方式，在第十方面的第二种可能的实现方式中，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述初始功率等级的变化量，或者，所述第一小区的参考信号的初始功率值相对于所述初始功率值的变化量。With reference to the first possible implementation of the tenth aspect, in a second possible implementation manner of the tenth aspect, the first power information includes at least one of: a reference signal of the first cell is in the a power level of the second time, or a power value of the reference signal of the first cell at the second time, or a power level of the reference signal of the first cell at the second time relative to the The amount of change of the power level at the first time, or the amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time, or the first cell The amount of change of the power level of the reference signal relative to the initial power level at the second time, or the amount of change of the initial power value of the reference signal of the first cell relative to the initial power value.

在第十方面的第三种可能的实现方式中，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量。In a third possible implementation manner of the tenth aspect, the first power information includes at least one of: a power level of the reference signal of the first cell at the second moment, or the first a power value of the reference signal of the cell at the second time, or a change amount of the power level of the reference signal of the first cell at the second time relative to a power level of the first time, or The amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time.

结合第十方面，或者第十方面的第一至第三种中任意一种可能的实现方式，在第十方面的第四种可能的实现方式，所述下行物理信道包括：包括物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。With reference to the tenth aspect, or any one of the first to the third aspects of the tenth aspect, in a fourth possible implementation manner of the tenth aspect, the downlink physical channel includes: a physical downlink control channel The PDCCH, or physical hybrid automatic repeat indication channel PHICH, or physical control format indication channel.

结合第十方面，或者第十方面的第一至第四种中任意一种可能的实现方式，在第十方面的第五种可能的实现方式，所述第一小区与所述第二小区为同一小区。With reference to the tenth aspect, or any one of the first to fourth aspects of the tenth aspect, in a fifth possible implementation manner of the tenth aspect, the first cell and the second cell are The same cell.

结合第十方面，或者第十方面的第一至第四种中任意一种可能的实现方式，在第十方面的第六种可能的实现方式，所述第一小区为辅小区，所述第二小区为主小区；所述第一功率信息还包括所述第一小区的小区标识。With reference to the tenth aspect, or any one of the first to fourth aspects of the tenth aspect, in a sixth possible implementation manner of the tenth aspect, the first cell is a secondary cell, where the The second cell is a primary cell; the first power information further includes a cell identifier of the first cell.

结合第十方面，或者第十方面的第一至第六种中任意一种可能的实现方式，在第十方面的第七种可能的实现方式，所述装置部署在终端。 With reference to the tenth aspect, or any one of the first to the sixth aspects of the tenth aspect, in a seventh possible implementation manner of the tenth aspect, the device is deployed in the terminal.

第十一方面，本发明实施例提供了一种功率控制的装置，所述装置包括：确定单元和收发单元；其中，In an eleventh aspect, an embodiment of the present invention provides a device for power control, where the device includes: a determining unit and a transceiver unit;

所述收发单元用于接收基站在第一时刻通过第一小区发送的下行物理信号；The transceiver unit is configured to receive a downlink physical signal that is sent by the base station by using the first cell at the first moment;

所述确定单元用于根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级；The determining unit is configured to determine, according to the downlink physical signal, a power level of the reference signal of the first cell at a second moment;

在第十一方面的第一种可能的实现方式中，所述第二小区的下行物理信号包括功率加扰参考信号，所述第一时刻包括用于小区专用参考信号发送的时域位置；In a first possible implementation manner of the eleventh aspect, the downlink physical signal of the second cell includes a power scrambled reference signal, where the first time includes a time domain location for cell-specific reference signal transmission;

所述确定单元用于根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级，包括：The determining unit is configured to determine, according to the downlink physical signal, a power level of the reference signal of the first cell at a second moment, including:

所述确定单元通过盲检测确定所述功率加扰参考信号对应的小区专用参考信号序列；Determining, by the blind detection, a cell-specific reference signal sequence corresponding to the power scrambled reference signal;

所述确定单元根据所述小区专用参考信号序列对所述功率加扰参考信号解扰确定所述第一小区的参考信号在第二时刻的功率等级。The determining unit descrambles the power scrambled reference signal according to the cell-specific reference signal sequence to determine a power level of the reference signal of the first cell at a second moment.

在第十一方面的第二种可能的实现方式中，所述第二小区的下行物理信号包括功率通知序列；所述第一时刻包括用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，所述基站检测到免许可频谱的空闲信道的时域位置；In a second possible implementation manner of the eleventh aspect, the downlink physical signal of the second cell includes a power notification sequence, where the first time includes a time domain location for primary synchronization signal transmission, or a time domain location of the secondary synchronization signal transmission, or a time domain location of the idle channel in which the base station detects the unlicensed spectrum;

所述确定单元根据所述功率通知序列确定所述第一小区的参考信号在第二时刻的功率等级。The determining unit determines a power level of the reference signal of the first cell at a second moment according to the power notification sequence.

结合第十一方面，或者第十一方面的第一至第二种中任意一种可能的实现方式，在第十一方面的第三种可能的实现方式，所述装置部署在终端。 With reference to the eleventh aspect, or any one of the first to the second possible implementation manners of the eleventh aspect, in a third possible implementation manner of the eleventh aspect, the device is deployed in the terminal.

第十二方面，本发明实施例提供了一种功率控制的装置，所述装置包括：确定单元和收发单元；其中，According to a twelfth aspect, an embodiment of the present invention provides a device for power control, where the device includes: a determining unit and a transceiver unit;

所述收发单元用于接收基站在第一时刻通过第二小区发送的发射功率变化信息；The transceiver unit is configured to receive transmit power change information that is sent by the base station by using the second cell at the first moment;

所述确定单元用于根据所述发射功率变化信息确定第一小区的参考信号在第二时刻的发射功率；The determining unit is configured to determine, according to the transmit power change information, a transmit power of a reference signal of the first cell at a second moment;

在第十二方面的第一种可能的实现方式中，所述第一小区的参考信号的发射功率变化模式包括至少一个周期及该周期对应的功率信息。In a first possible implementation manner of the twelfth aspect, the transmit power change mode of the reference signal of the first cell includes at least one period and power information corresponding to the period.

结合第十二方面的第一种可能的实现方式，在第十二方面的第二种可能的实现方式中，所述收发单元还用于接收所述基站通过所述第二小区的广播信道发送的***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。With the first possible implementation of the twelfth aspect, in a second possible implementation manner of the twelfth aspect, the transceiver unit is further configured to receive, by the base station, a broadcast channel that is sent by using the second cell The system message, where the system message carries initial power information of the reference signal of the first cell, or initial power information of the reference signal of the first cell and power information of the reference signal supported by the first cell The initial power information is an initial power level or an initial power value, and the power information of the supported reference signal of the first cell includes at least one power level of the reference signal, or at least one power value of the reference signal.

结合第十二方面的第二种可能的实现方式，在第十二方面的第三种可能的实现方式中，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值，或者，所述周期的功率等级相对于所述周期的前一周期的功率等级的变化量，或者。所述周期的功率值相对于所述周期的前一周期的功率值的变化量，或者，所述周期的功率等级相对于所述初始功率等级的变化量，或者所述周期的功率值相对于所述初始功率值的变化量。With reference to the second possible implementation manner of the twelfth aspect, in a third possible implementation manner of the twelfth aspect, the power information corresponding to the period includes: a power level of the period, or the period The power value, or the amount of change in the power level of the period relative to the power level of the previous period of the period, or. The amount of change of the power value of the period relative to the power value of the previous period of the period, or the amount of change of the power level of the period relative to the initial power level, or the power value of the period relative to The amount of change in the initial power value.

结合第十二方面的第一种可能的实现方式，在第十二方面的第四种可能的实现方式中，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值。With reference to the first possible implementation manner of the twelfth aspect, in a fourth possible implementation manner of the twelfth aspect, the power information corresponding to the period includes: a power level of the period, or The power value of the period.

结合第十二方面，或者第十二方面的第一至第四种中任意一种可能的实现方式，在第十二方面的第五种可能的实现方式所述收发单元用于接收基站在第一时刻通过第二小区发送的发射功率变化信息，包括：With reference to the twelfth aspect, or any one of the first to fourth aspects of the twelfth aspect, the fifth possible implementation manner of the twelfth aspect, the transceiver unit is configured to receive a base station Transmit power change information sent by the second cell at a time, including:

所述收发单元用于接收所述基站在第一时刻通过第二小区的专用控制信道发送的所述发射功率变化信息；或者，The transceiver unit is configured to receive the transmit power change information that is sent by the base station by using a dedicated control channel of the second cell at a first moment; or

所述收发单元用于接收所述基站在第一时刻通过第二小区的广播信道发送的所述发射功率变化信息；或者，The transceiver unit is configured to receive the transmit power change information that is sent by the base station by using a broadcast channel of the second cell at a first moment; or

所述收发单元用于接收所述基站在第一时刻通过第二小区的下行物理信道发送的所述发射功率变化信息，所述第二小区的下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被所述基站调度。The transceiver unit is configured to receive the transmit power change information that is sent by the base station by using a downlink physical channel of the second cell at a first moment, where the downlink physical channel of the second cell is scrambled by the power radio network identifier RNTI, and Each TTI is scheduled by the base station.

结合第十二方面的第五种可能的实现方式，在第十二方面的第六种可能的实现方式中，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。With the fifth possible implementation of the twelfth aspect, in a sixth possible implementation manner of the twelfth aspect, the downlink physical channel includes: a physical downlink control channel PDCCH, or a physical hybrid automatic retransmission indication The channel PHICH, or physical control format indicates the channel.

结合第十二方面，或者第十二方面的第一至第六种中任意一种可能的实现方式，在第十二方面的第七种可能的实现方式，所述第一小区与所述第二小区为同一小区。With reference to the twelfth aspect, or any one of the first to the sixth aspect of the twelfth aspect, the seventh possible implementation manner of the twelfth aspect, the first cell and the first The two cells are the same cell.

结合第十二方面，或者第十二方面的第一至第六种中任意一种可能的实现方式，在第十二方面的第八种可能的实现方式，所述第一小区为辅小区，所述第二小区为主小区；所述发射功率变化信息还包括所述第一小区的小区标识。With reference to the twelfth aspect, or any one of the first to the sixth aspect of the twelfth aspect, the first possible implementation manner of the twelfth aspect, the first cell is a secondary cell, The second cell is a primary cell; the transmit power change information further includes a cell identifier of the first cell.

结合第十二方面的第七至第八种中任意一种可能的实现方式，在第十二方面的第九种可能的实现方式，所述装置部署在终端。In conjunction with any of the possible implementations of the seventh to eighth aspects of the twelfth aspect, in a ninth possible implementation of the twelfth aspect, the apparatus is deployed at a terminal.

第十三方面，本发明实施例提供了一种功率控制的***，所述***包括终端和基站；其中，所述终端包括如第十方面第七种，第十一方面第三种或者第十二方面第九种中任一可能的实现方式提供的装置，所述基站包括如第七方面第七种，第八方面第三种或者第九方面第九种中任一可能的实现方式的装置。According to a thirteenth aspect, an embodiment of the present invention provides a power control system, where the system includes a terminal and a base station, where the terminal includes the seventh aspect, the eleventh aspect, the third or the tenth The apparatus provided by any of the possible implementations of the ninth aspect, wherein the base station comprises the apparatus of any one of the seventh aspect, the eighth aspect, the third or the ninth aspect, the ninth implementation .

本发明实施例的方法、装置和***，在确定主小区或者辅小区的参考信号的发射功率变化时使终端能快速获取到发射功率变化信息，从而可以实现毫秒级快速功率控制并减少信令开销。The method, device and system of the embodiment of the present invention determine a reference signal of a primary cell or a secondary cell When the transmit power is changed, the terminal can quickly obtain the transmit power change information, thereby achieving millisecond-level fast power control and reducing signaling overhead.

附图说明DRAWINGS

图1为本发明一实施例提供的功率控制方法的流程图；FIG. 1 is a flowchart of a power control method according to an embodiment of the present invention;

图2为本发明另一实施例提供的功率控制方法的流程图；2 is a flowchart of a power control method according to another embodiment of the present invention;

图3为本发明另一实施例提供的发送下行物理信号时域位置的示意图；3 is a schematic diagram of a time domain location of transmitting a downlink physical signal according to another embodiment of the present invention;

图4为本发明另一实施例提供的功率控制方法的流程图；4 is a flowchart of a power control method according to another embodiment of the present invention;

图5为本发明另一实施例提供的参考信号的发射功率周期变化的示意图；FIG. 5 is a schematic diagram of a period change of a transmission power of a reference signal according to another embodiment of the present invention; FIG.

图6为本发明另一实施例提供的功率控制方法的流程图；FIG. 6 is a flowchart of a power control method according to another embodiment of the present invention;

图7为本发明另一实施例提供的功率控制方法的流程图；FIG. 7 is a flowchart of a power control method according to another embodiment of the present invention;

图8为本发明另一实施例提供的功率控制方法的流程图；FIG. 8 is a flowchart of a power control method according to another embodiment of the present invention;

图9为本发明另一实施例提供的功率控制装置的结构图；FIG. 9 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图10为本发明另一实施例提供的功率控制装置的结构图；FIG. 10 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图11为本发明另一实施例提供的功率控制装置的结构图；FIG. 11 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图12为本发明另一实施例提供的功率控制装置的结构图；FIG. 12 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图13为本发明另一实施例提供的功率控制装置的结构图；FIG. 13 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图14为本发明另一实施例提供的功率控制装置的结构图；FIG. 14 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图15为本发明另一实施例提供的功率控制装置的结构图；FIG. 15 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图16为本发明另一实施例提供的功率控制装置的结构图；FIG. 16 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图17为本发明另一实施例提供的功率控制装置的结构图；FIG. 17 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图18为本发明另一实施例提供的功率控制装置的结构图；FIG. 18 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图19为本发明另一实施例提供的功率控制装置的结构图；FIG. 19 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图20为本发明另一实施例提供的功率控制装置的结构图；FIG. 20 is a structural diagram of a power control apparatus according to another embodiment of the present invention; FIG.

图21为本发明另一实施例提供的功率控制***的组成图。 FIG. 21 is a structural diagram of a power control system according to another embodiment of the present invention.

具体实施方式detailed description

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，可以理解的是，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做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 will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. It is understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. 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.

本发明实施例中方法、装置和***可以通过无线接入网设备来实现，也可以通过终端来实现。其中，无线接入网设备包括不限于下述任一种或者多于一种共同实现，如，演进型基站eNodeB，基站NodeB，无线网络控制器RNC或者其他接入网设备的接入控制节点。在本发明发明各实施例中，为了方便描述，以基站为例进行描述。需要说明的是并不限于此。The method, device and system in the embodiments of the present invention may be implemented by a radio access network device, or may be implemented by a terminal. The radio access network device includes an access control node that is not limited to any one of the following or more than one common implementation, such as an evolved base station eNodeB, a base station NodeB, a radio network controller RNC, or other access network devices. In the embodiments of the present invention, for convenience of description, a base station is taken as an example for description. It should be noted that it is not limited to this.

需要说明的是，本发明实施例中提到的小区可以包括宏小区和小小区(small cell)，其中，小小区可以包括城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，本发明并不限于此。这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。在本发明实施例中，LTE***中的载波与小区的概念是等同的，也就是说，接入一个载波和接入一个小区是等同的，为了方便描述，本发明实施例中将统一以小区来介绍。在本发明实施例中，和基站可以进行数据通信的设备都可以视为终端，终端还可以包括中继Relay。It should be noted that the cell mentioned in the embodiment of the present invention may include a macro cell and a small cell, where the small cell may include a metro cell, a micro cell, and a pico cell (pico). Cell), femto cell, etc., and the present invention is not limited thereto. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services. In the embodiment of the present invention, the concept of the carrier and the cell in the LTE system is the same, that is, accessing one carrier and accessing one cell are equivalent. For the convenience of description, the cell in the embodiment of the present invention is unified. To introduce. In the embodiment of the present invention, the device that can perform data communication with the base station can be regarded as a terminal, and the terminal can further include a relay relay.

图1为本发明一实施例提供的功率控制方法的流程图，如图所示，方法包括：FIG. 1 is a flowchart of a power control method according to an embodiment of the present invention. As shown in the figure, the method includes:

步骤101、基站确定第一小区的参考信号在第二时刻的发射功率。Step 101: The base station determines a transmit power of the reference signal of the first cell at the second moment.

在本发明实施例中，都是以基站通过其所管理的第二小区通知终端为例。其中，第一小区可以与第二小区为同一小区，也可以是基站所管理的与第二小区不同的一个小区，还可以是由另一基站所管理的小区。 In the embodiment of the present invention, the second cell notification terminal is managed by the base station as an example. The first cell may be the same cell as the second cell, or may be a cell managed by the base station different from the second cell, or may be a cell managed by another base station.

在LAA***中，基站可以根据免许可频谱占用时长，或者，小区打开(cell on)以及小区关闭，或者许可频谱与免许可频谱之间的干扰等来确定主小区或者辅小区中参考信号在不同时刻的发射功率。In the LAA system, the base station may determine that the reference signals in the primary cell or the secondary cell are different according to the duration of the unlicensed spectrum occupation, or the cell on and the cell is closed, or the interference between the licensed spectrum and the unlicensed spectrum. The transmit power of the moment.

在本发明的一个实施例中，在CA方式下，第一小区与第二小区为同一小区时，可以是主小区，也可以是辅小区。基站可以从支持的参考信号发射功率中确定一个作为第二时刻的发射功率，例如，基站确定-78dBm为第一小区的参考信号在第二时刻的发射功率，也就是说第一小区的参考信号的发射功率在第二时刻将按照-78dBm发射。需要说明的是，这里的数值只是为了举例方便，并不限于此。In an embodiment of the present invention, when the first cell and the second cell are the same cell in the CA mode, the primary cell may be a primary cell or a secondary cell. The base station may determine, as the second time, the transmit power from the supported reference signal transmit power, for example, the base station determines that -78 dBm is the transmit power of the reference signal of the first cell at the second time, that is, the reference signal of the first cell. The transmit power will be transmitted at -78 dBm at the second time. It should be noted that the numerical values herein are merely for convenience of example, and are not limited thereto.

在本发明的另一实施例中，第一小区与第二小区为不同小区，第一小区为辅小区，第二小区为主小区。如果第一小区与第二小区为同一基站管理，则基站可以从支持的参考信号发射功率中确定一个作为第二时刻的发射功率；如果第一小区与第二小区为不同基站管理，则基站可以通过基站间的X2接口从管理第一小区的基站获取第一小区的参考信号在第二时刻的发射功率。In another embodiment of the present invention, the first cell and the second cell are different cells, the first cell is a secondary cell, and the second cell is a primary cell. If the first cell and the second cell are managed by the same base station, the base station may determine one transmit power as the second time from the supported reference signal transmit power; if the first cell and the second cell are managed by different base stations, the base station may The transmission power of the reference signal of the first cell at the second time is acquired from the base station managing the first cell by using the X2 interface between the base stations.

步骤102、基站根据步骤101确定的第一小区的参考信号在第二时刻的发射功率确定第一功率信息。Step 102: The base station determines, according to the transmit power of the reference signal of the first cell determined by the step 101, the first power information.

由于参考信号的发射功率可以通过多种方式表示，例如，功率等级，功率值等。Since the transmit power of the reference signal can be represented in various ways, for example, power level, power value, and the like.

在本发明的一个实施例中，参考信号的功率值可以与功率等级一一对应，每个功率等级对应不同的功率值，相应地，每个功率等级可以对应不同的覆盖范围，功率等级和参考信号的功率值的对应关系可以采用表1来表示，参考信号的功率值单位为分贝毫瓦(dBm)，如表1所示，功率等级0对应的参考信号的功率值为-198dBm。参考信号的功率等级和参考信号的功率值的对应关系可以通过协议约定，分别记录在基站和终端。In an embodiment of the present invention, the power values of the reference signals may be in one-to-one correspondence with the power levels, and each power level corresponds to a different power value. Accordingly, each power level may correspond to different coverage ranges, power levels, and references. The correspondence between the power values of the signals can be expressed by Table 1. The power value of the reference signal is in decibels milliwatts (dBm). As shown in Table 1, the power value of the reference signal corresponding to the power level 0 is -198 dBm. The correspondence between the power level of the reference signal and the power value of the reference signal can be recorded in the base station and the terminal respectively by agreement.

表1参考信号的功率等级和参考信号的功率值对应关系 Table 1 Correspondence between the power level of the reference signal and the power value of the reference signal

功率等级Power level	参考信号功率(dBm)Reference signal power (dBm)
00	-198-198
11	-158-158
22	-118-118
33	-78-78

需要说明的是，本发明上述各实施例中所列举的各数值，均是为了进行举例说明，本发明并不以此为限，而且表1也仅为举例说明，本发明并不以此为限。It should be noted that the numerical values listed in the above embodiments of the present invention are for illustrative purposes, and the present invention is not limited thereto, and Table 1 is merely illustrative, and the present invention does not limit.

从而基站确定出的第一功率信息也可以包括多种信息。例如，第一功率信息可以包括第一小区的参考信号在第二时刻的功率等级，或者，第一小区的参考信号在第二时刻的功率值。Therefore, the first power information determined by the base station may also include a plurality of types of information. For example, the first power information may include a power level of the reference signal of the first cell at the second moment, or a power value of the reference signal of the first cell at the second moment.

又例如，第一功率信息也可以包括第一小区的参考信号在第二时刻的功率等级相对于当前时刻的功率等级的变化量，或者，第一小区的参考信号在第二时刻的功率值相对于当前时刻的功率值的变化量。其中，当前时刻的发射功率在基站没有通知终端前是不会发生变化的，如果基站在第一时刻通知终端发射功率改变，则参考信号在当前时刻的功率等级和第一时刻的功率等级是相同的，或者参考信号在当前时刻的功率值和第一时刻的功率值是相同的。For another example, the first power information may also include a change amount of the power level of the reference signal of the first cell with respect to the power level of the current time, or the power value of the reference signal of the first cell at the second time is relatively The amount of change in the power value at the current time. The power of the current time does not change before the base station not informs the terminal. If the base station notifies the terminal of the transmission power change at the first moment, the power level of the reference signal at the current time is the same as the power level of the first time. The power value of the reference signal at the current time and the power value at the first time are the same.

又例如，在步骤101之前，基站可以通过第二小区的广播信道发送***消息，在***消息中包括第一小区的参考信号的初始功率信息，或者，第一小区的参考信号的初始功率信息和第一小区支持的参考信号的功率信息。其中，初始功率信息为初始功率等级或者初始功率值，第一小区支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者参考信号的至少一个功率值。从而第一功率信息也可以包括第一小区的参考信号在第二时刻的功率等级相对于初始功率等级的变化量，或者，第一小区的参考信号的初始功率值相对于初始功率值的变化量。 For example, before step 101, the base station may send a system message by using a broadcast channel of the second cell, including initial power information of the reference signal of the first cell, or initial power information of the reference signal of the first cell in the system message. Power information of a reference signal supported by the first cell. The initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal. Therefore, the first power information may also include a change amount of the power level of the reference signal of the first cell with respect to the initial power level, or a change amount of the initial power value of the reference signal of the first cell with respect to the initial power value. .

需要说明的是，上述均只是举例，本发明并不限于此。It should be noted that the above are merely examples, and the present invention is not limited thereto.

若第一小区与第二小区为不同小区，则第一功率信息中还需要包括第一小区的物理小区标识(physical cell identity，PCI)指示第一功率信息适用于第一小区的参考信号。若第一小区与第二小区为同一小区，则第一功率信息中可以包括第一小区的PCI，也可以不包括。If the first cell and the second cell are different cells, the first cell information further includes a physical cell identity (PCI) indicating that the first cell information is applicable to the reference signal of the first cell. If the first cell and the second cell are the same cell, the first power information may include the PCI of the first cell, or may not be included.

步骤103、基站在第一时刻通过第二小区向终端发送步骤102确定的第一功率信息以使得终端根据第一功率信息确定第一小区的参考信号在第二时刻的发射功率，其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。这里k可以是基站和终端预先约定或者基站通知终端的参数。Step 103: The base station sends the first power information determined in step 102 to the terminal by using the second cell to enable the terminal to determine the transmit power of the reference signal of the first cell at the second time according to the first power information, where the second The time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0. Here k may be a parameter that the base station and the terminal pre-arrange or the base station notifies the terminal.

为了达到快速通知终端发射功率变化的目的，基站可以通过多种方式通知终端。In order to achieve the purpose of quickly notifying the transmission power of the terminal, the base station can notify the terminal in various ways.

在本发明的一个实施例中，基站在第一时刻通过第二小区的下行物理信道向终端发送步骤102确定的第一功率信息，其中，该下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被所述基站调度。In an embodiment of the present invention, the base station transmits the first power information determined in step 102 to the terminal by using the downlink physical channel of the second cell at the first moment, where the downlink physical channel is scrambled by the power wireless network identifier RNTI, and It is scheduled by the base station every TTI.

这里功率RNTI是小区级RNTI，可以复用***中已经定义的小区级RNTI，也可以定义一个新的小区级RNTI用于发送功率信息，下行物理信道可以是物理下行控制信道PDCCH，也可以是物理混合自动重传指示信道PHIC或者，物理控制格式指示信道，还可以采用新的下行物理信道发送功率信息。本发明并不限于此。这些下行物理信道可以在每TTI被基站调度，由于TTI是毫秒周期，从而可以将第一功率信息快速地通知到终端。Here, the power RNTI is a cell-level RNTI, and the cell-level RNTI that has been defined in the system may be multiplexed, or a new cell-level RNTI may be defined for transmitting power information. The downlink physical channel may be a physical downlink control channel PDCCH, or may be physical. The hybrid automatic retransmission indication channel PHIC or the physical control format indication channel may also use the new downlink physical channel to transmit power information. The invention is not limited to this. These downlink physical channels can be scheduled by the base station every TTI, and since the TTI is a millisecond period, the first power information can be quickly notified to the terminal.

在本发明的另一实施例中，基站也可以在第一时刻通过媒体接入控制层MAC控制单元CE向终端发送步骤102确定的第一功率信息。同样也可以实现毫秒级的快速通知。In another embodiment of the present invention, the base station may also send the first power information determined in step 102 to the terminal through the medium access control layer MAC control unit CE at the first moment. It is also possible to implement fast notifications in milliseconds.

通过本发明实施例的方法，基站确定主小区或者辅小区的参考信号的发射功率变化时，通过每TTI调度的下行物理信道或者MAC CE快速通知终端，从而可以实现毫秒级快速功率控制并减少信令开销。When the base station determines the transmission power of the reference signal of the primary cell or the secondary cell by using the method of the embodiment of the present invention, the base station transmits the downlink physical channel or the MAC CE to notify the terminal quickly. This enables millisecond-level fast power control and reduces signaling overhead.

图2为本发明另一实施例提供的功率控制方法的流程图，如图所示，方法包括：2 is a flowchart of a power control method according to another embodiment of the present invention. As shown in the figure, the method includes:

步骤201、基站确定第一小区的参考信号在第二时刻的功率等级。Step 201: The base station determines a power level of the reference signal of the first cell at the second moment.

第一小区为基站所管理的小区，可以是终端的主小区，也可以是终端的辅小区。在LAA***中，基站可以根据多种方式来确定主小区或者辅小区中参考信号在不同时刻的发射功率。由于在前述实施例中已经进行了描述，此处不再赘述。The first cell is a cell managed by the base station, and may be a primary cell of the terminal or a secondary cell of the terminal. In the LAA system, the base station can determine the transmit power of the reference signal in the primary cell or the secondary cell at different times according to various manners. Since the description has been made in the foregoing embodiments, details are not described herein again.

在本发明的一个实施例中，基站可以从支持的参考信号发射功率中确定一个作为第二时刻的发射功率，例如，基站确定-78dBm为第一小区的参考信号在第二时刻的发射功率，也就是说第一小区的参考信号的发射功率在第二时刻将按照-78dBm发射。需要说明的是，这里的数值只是为了举例方便，并不限于此。In an embodiment of the present invention, the base station may determine a transmit power as the second time from the supported reference signal transmit power, for example, the base station determines that -78 dBm is the transmit power of the reference signal of the first cell at the second time, That is to say, the transmission power of the reference signal of the first cell will be transmitted at -78 dBm at the second moment. It should be noted that the numerical values herein are merely for convenience of example, and are not limited thereto.

参考信号的功率等级可以与功率值一一对应，每个功率等级对应不同的功率值，相应地，每个功率等级可以对应不同的覆盖范围，功率等级和参考信号的功率值的对应关系也可以采用前述方法实施中的表1来表示。参考信号的功率等级和参考信号的功率值的对应关系可以通过协议约定，分别记录在基站和终端。The power level of the reference signal may be in one-to-one correspondence with the power value, and each power level corresponds to a different power value. Accordingly, each power level may correspond to a different coverage range, and the corresponding relationship between the power level and the power value of the reference signal may also be It is represented by Table 1 in the foregoing method implementation. The correspondence between the power level of the reference signal and the power value of the reference signal can be recorded in the base station and the terminal respectively by agreement.

基站根据的第一小区的参考信号在第二时刻的发射功率确定出第一小区的参考信号在第二时刻的功率等级。The base station according to the transmit power of the reference signal of the first cell at the second time determines the power level of the reference signal of the first cell at the second time.

步骤202、基站在第一时刻通过第一小区发送下行物理信号，以使得终端根据下行物理信号确定第一小区的参考信号在第二时刻的功率等级；其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。Step 202: The base station sends a downlink physical signal by using the first cell at the first time, so that the terminal determines, according to the downlink physical signal, a power level of the reference signal of the first cell at the second time; wherein, the second time is later than the first time The transmission time interval TTI, k is an integer greater than or equal to zero.

基站可以采用多种下行物理信号发送步骤201中确定的第一小区的参考信号在第二时刻的功率等级。The base station may send, by using multiple downlink physical signals, the power level of the reference signal of the first cell determined in step 201 at the second moment.

在本发明的一个实施例中，基站可以选择小区专用参考信号 (cell-specific reference signal，CRS)发送的时域位置作为第一时刻，例如，常规循环前缀时，天线口0和1的每个时隙的第1个和第5个符号处。需要说明的是，这里只是举例，并不限于此。In an embodiment of the present invention, the base station may select a cell-specific reference signal The time domain position transmitted by the cell-specific reference signal (CRS) is taken as the first time, for example, at the first and fifth symbols of each time slot of antenna ports 0 and 1, when the regular cyclic prefix is used. It should be noted that this is only an example and is not limited thereto.

基站根据步骤201确定的第一小区的参考信号在第二时刻的功率等级对CRS序列加扰获得功率加扰参考信号。一种实现方式是可以对CRS序列生成的初始化参数c_init加扰。以功率等级的比特序列为{x₀，x₁，…，x_n-1}，其中x_n是功率等级的高位比特，n是功率等级编码所需要的比特数，例如基站支持的功率等级有4级，则需要2个比特进行编码表示一个功率等级，也就是n为2，加扰前初始化参数序列为{b₀，b₁，…，b_m-1}，m为加扰前初始化参数序列的比特数，则功率等级加扰后的初始化参数序列{c₀，c₁，…，c_m-1}如公式1所示：The base station scrambles the CRS sequence according to the power level of the reference signal of the first cell determined in step 201 at the second time to obtain a power scrambled reference signal. One implementation is that the initialization parameter c _init generated by the CRS sequence can be scrambled. The bit sequence of the power level is {x ₀ , x ₁ , ..., x _n-1 }, where x _n is the high order bit of the power level, and n is the number of bits required for power level coding, for example, the power level supported by the base station is Level 4, which requires 2 bits to encode to represent a power level, that is, n is 2, the initialization parameter sequence before scrambling is {b ₀ , b ₁ ,..., b _m-1 }, m is the pre-scrambling initialization parameter The number of bits in the sequence, then the initialization parameter sequence {c ₀ , c ₁ , ..., c _m-1 } after the power level scrambling is as shown in Equation 1:

基站根据初始化参数序列{c₀，c₁，…，c_m}生成功率加扰参考信号，在CRS发送的时刻发送该功率加扰参考信号序列。终端可以通过盲检测确定功率加扰参考信号对应的CRS序列，并根据该CRS序列对功率加扰参考信号序列进行解扰从而获得第一小区的参考信号在第二时刻的功率等级。The base station generates a power scrambled reference signal according to the initialization parameter sequence {c ₀ , c ₁ , . . . , c _m }, and transmits the power scrambled reference signal sequence at the time of CRS transmission. The terminal may determine the CRS sequence corresponding to the power scrambled reference signal by blind detection, and perform descrambling on the power scrambled reference signal sequence according to the CRS sequence to obtain a power level of the reference signal of the first cell at the second moment.

在本发明的另一个实施例中，基站和终端可以定义功率序列，每个功率序列和功率等级一一对应，基站可以根据第一小区的参考信号在第二时刻的功率等级确定该功率等级对应的功率序列作为功率通知序列。例如，功率等级0对应的功率序列为{a₀₀，a₀₁，…，a_0p}，p为正整数，功率等级1对应的功率序列为{a₁₀，a₁₁，…，a_1p}，若步骤201中确定的第一小区的参考信号在第二时刻的功率等级为1，则将{a₁₀，a₁₁，…，a_1p}作为功率通知序列。In another embodiment of the present invention, the base station and the terminal may define a power sequence, and each power sequence and the power level are in one-to-one correspondence, and the base station may determine, according to the reference signal of the first cell, the power level corresponding to the power level at the second moment. The power sequence is used as a power notification sequence. For example, the power sequence corresponding to power level 0 is {a ₀₀ , a ₀₁ , . . . , a _0p }, p is a positive integer, and the power sequence corresponding to power level 1 is {a ₁₀ , a ₁₁ , . . . , a _1p }, if If the power level of the reference signal of the first cell determined in step 201 is 1 at the second time, {a ₁₀ , a ₁₁ , . . . , a _1p } is used as the power notification sequence.

基站可以选择主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，基站检测到免许可频谱的空闲信道的时域位置发送所确定的功率通知序列。以基站检测到免许可频谱的空闲信道的时域位置为例，图3为本发明另一实施例提供的基站发送下行物理信号的时域位置的示意图，如图3所示，在LAA***中，基站在子帧1的时域位置1处检测到免许可频谱的空闲信道，为了占用该信道，基站从子帧1的位置1开始，在子帧2边界到来之前发送功率通知序列，并且在子帧2开始发送数据。终端检测到该功率通知序列时，可以获取到对应的功率等级。The base station may select a time domain location for the primary synchronization signal transmission, or a time domain location for the secondary synchronization signal transmission, or the base station detects the time domain location of the idle channel of the unlicensed spectrum to transmit the determined power notification sequence. For example, the time domain location of the idle channel in which the base station detects the unlicensed spectrum is taken as an example. FIG. 3 is a schematic diagram of a time domain location of a downlink physical signal transmitted by a base station according to another embodiment of the present invention. As shown in FIG. 3, in the LAA system, a base station detects an unlicensed spectrum at a time domain position 1 of a subframe 1. The idle channel, in order to occupy the channel, the base station starts from position 1 of subframe 1, transmits a power notification sequence before the arrival of the subframe 2 boundary, and starts transmitting data in subframe 2. When the terminal detects the power notification sequence, the corresponding power level can be obtained.

需要说明的是上述均只是举例，本发明实施例并不限于此。It should be noted that the above is only an example, and the embodiment of the present invention is not limited thereto.

通过本发明实施例的方法，基站确定主小区或者辅小区的参考信号的发射功率变化时，通过下行物理信号快速通知终端，从而可以实现毫秒级快速功率控制并减少信令开销。When the base station determines that the transmit power of the reference signal of the primary cell or the secondary cell changes, the base station quickly notifies the terminal by using the downlink physical signal, thereby implementing millisecond-level fast power control and reducing signaling overhead.

图4为本发明另一实施例提供的功率控制方法的流程图，如图所示，方法包括：FIG. 4 is a flowchart of a power control method according to another embodiment of the present invention. As shown in the figure, the method includes:

步骤401、基站确定第一小区的参考信号在第二时刻的发射功率变化信息。其中，发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和第二时刻。Step 401: The base station determines, according to the transmit power change information of the reference signal of the first cell at the second moment. The transmit power change information includes at least one of the following: a transmit power change mode and a second time of the reference signal of the first cell.

在本发明实施例中，都是以基站通过其所管理的第二小区通知终端为例。其中，第一小区可以与第二小区为同一小区，也可以是基站所管理的与第二小区不同的一个小区，还可以是由另一基站所管理的小区。In the embodiment of the present invention, the second cell notification terminal is managed by the base station as an example. The first cell may be the same cell as the second cell, or may be a cell managed by the base station different from the second cell, or may be a cell managed by another base station.

第二时刻可以为第一小区的参考信号的发射功率变化模式的生效时刻。The second moment may be an effective moment of a transmission power variation mode of the reference signal of the first cell.

第一小区的参考信号的发射功率变化模式可以包括至少一个周期及该周期对应的功率信息。The transmit power change pattern of the reference signal of the first cell may include at least one period and power information corresponding to the period.

在LAA***中，基站可以根据免许可频谱占用时长，或者，小区打开(cell on)以及小区关闭等来确定主小区或者辅小区中参考信号的发射功率变化模式。例如，如图5所示，为小区打开以及小区关闭情况下，参考信号的发射功率周期变化的示意图，在时刻t开始，参考信号将会在发射时长t1中以20dBm的发射功率发射，发射时长t2中以8dBm的发射功率发射，周期循环。也就是说第一小区的参考信号的发射功率变化模式的生效时刻为t，周期t1对应的发射功率为20dBm，周期t2对应的发射功率为8dBm。需要说明的是，此处只是举例，本发明并不限于此。In the LAA system, the base station may determine the transmit power change mode of the reference signal in the primary cell or the secondary cell according to the duration of the unlicensed spectrum occupation, or the cell on and the cell off. For example, as shown in FIG. 5, for the case where the cell is turned on and the cell is turned off, the transmission power period of the reference signal changes. At the time t, the reference signal will be transmitted at a transmission power of 20 dBm in the transmission duration t1, and the transmission duration is In t2, the transmission is transmitted at a transmission power of 8 dBm, and the cycle is cyclic. That is to say, the effective time of the transmission power change mode of the reference signal of the first cell is t, the transmission power corresponding to the period t1 is 20 dBm, and the transmission power corresponding to the period t2 is 8 dBm. It should be noted that the present invention is merely an example, and the present invention is not limited thereto.

由于参考信号的发射功率可以通过多种方式表示，例如，功率等级，功率值等。参考信号的功率等级可以与功率值一一对应，每个功率等级对应不同的功率值，相应地，每个功率等级可以对应不同的覆盖范围，功率等级和参考信号的功率值的对应关系也可以采用前述方法实施中的表1来表示。参考信号的功率等级和参考信号的功率值的对应关系可以通过协议约定，分别记录在基站和终端。Since the transmit power of the reference signal can be represented in various ways, for example, power level, power value, and the like. The power level of the reference signal may be in one-to-one correspondence with the power value, and each power level corresponds to a different power value. Accordingly, each power level may correspond to a different coverage range, and the corresponding relationship between the power level and the power value of the reference signal may also be It is represented by Table 1 in the foregoing method implementation. The correspondence between the power level of the reference signal and the power value of the reference signal can be recorded in the base station and the terminal respectively by agreement.

周期对应的功率信息也可以包括多种信息。例如，可以包括该周期的参考信号的功率等级，或者，该周期的参考信号的功率值。The power information corresponding to the cycle may also include a variety of information. For example, the power level of the reference signal of the period, or the power value of the reference signal of the period may be included.

又例如，周期对应的功率信息也可以包括该周期的参考信号的功率等级相对于前一周期的参考信号的功率等级的变化量，或者，该周期的参考信号的功率值相对于前一周期的参考信号的功率值的变化量。For another example, the power information corresponding to the period may also include the amount of change of the power level of the reference signal of the period relative to the power level of the reference signal of the previous period, or the power value of the reference signal of the period is relative to the previous period. The amount of change in the power value of the reference signal.

又例如，在步骤401之前，基站可以通过第二小区的广播信道发送***消息，在***消息中包括第一小区的参考信号的初始功率信息，或者，第一小区的参考信号的初始功率信息和第一小区支持的参考信号的功率信息。其中，初始功率信息为初始功率等级或者初始功率值，第一小区支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者参考信号的至少一个功率值。从而周期对应的功率信息也可以包括该周期的参考信号的功率等级相对于初始功率等级的变化量，或者，该周期的参考信号的功率值相对于初始功率值的变化量。For example, before step 401, the base station may send a system message by using a broadcast channel of the second cell, including initial power information of the reference signal of the first cell, or initial power information of the reference signal of the first cell in the system message. Power information of a reference signal supported by the first cell. The initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal. Therefore, the power information corresponding to the period may also include the amount of change of the power level of the reference signal of the period relative to the initial power level, or the amount of change of the power value of the reference signal of the period with respect to the initial power value.

若第一小区与第二小区为不同小区，则发射功率变化信息中还需要包括第一小区的PCI指示发射功率变化信息适用于第一小区的参考信号。若第一小区与第二小区为同一小区，则发射功率变化信息中可以包括第一小区的 PCI，也可以不包括。If the first cell and the second cell are different cells, the transmit power change information further needs to include a reference signal that the PCI indication transmit power change information of the first cell is applicable to the first cell. If the first cell and the second cell are the same cell, the transmit power change information may include the first cell. PCI can also not be included.

在本发明的另一实施例中，第一小区与第二小区为不同小区，第一小区为辅小区，第二小区为主小区。如果第一小区与第二小区为不同基站管理，则基站可以通过基站间的X2接口从管理第一小区的基站获取第一小区的参考信号在第二时刻的发射功率变化信息。In another embodiment of the present invention, the first cell and the second cell are different cells, the first cell is a secondary cell, and the second cell is a primary cell. If the first cell and the second cell are managed by different base stations, the base station may acquire the transmit power change information of the reference signal of the first cell at the second time from the base station managing the first cell by using the X2 interface between the base stations.

步骤402、基站在第一时刻通过第二小区向终端发送步骤401确定的发射功率变化信息。Step 402: The base station sends, by using the second cell, the transmit power change information determined in step 401 to the terminal at the first moment.

其中，第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，The second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0.

基站可以采用多种方式向终端发送发射功率变化信息，由于发射功率是周期变化的，发射功率变化信息相对稳定，因此无需采用快速通知的方式通知到终端。The base station can send the transmit power change information to the terminal in multiple manners. Since the transmit power is periodically changed, the transmit power change information is relatively stable, so the terminal is not required to be notified by means of fast notification.

例如，基站可以在第一时刻通过第二小区的专用控制信道向终端发送发射功率变化信息；又例如，基站可以在第一时刻通过第二小区的广播信道向终端发送发射功率变化信息；又例如，基站也可以在第一时刻通过第二小区的下行物理信道向终端发送发射功率变化信息，该下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被基站调度。这里功率RNTI是小区级RNTI，可以复用***中已经定义的小区级RNTI，也可以定义一个新的小区级RNTI用于发送功率信息，下行物理信道可以是物理下行控制信道PDCCH，也可以是物理混合自动重传指示信道PHIC或者，物理控制格式指示信道，还可以采用新的下行物理信道发送功率信息。For example, the base station may send the transmit power change information to the terminal through the dedicated control channel of the second cell at the first moment; for example, the base station may send the transmit power change information to the terminal through the broadcast channel of the second cell at the first moment; The base station may also send transmit power change information to the terminal through the downlink physical channel of the second cell at the first moment, the downlink physical channel is scrambled by the power radio network identifier RNTI, and each TTI is scheduled by the base station. Here, the power RNTI is a cell-level RNTI, and the cell-level RNTI that has been defined in the system may be multiplexed, or a new cell-level RNTI may be defined for transmitting power information. The downlink physical channel may be a physical downlink control channel PDCCH, or may be physical. The hybrid automatic retransmission indication channel PHIC or the physical control format indication channel may also use the new downlink physical channel to transmit power information.

通过本发明实施例的方法，基站确定主小区或者辅小区的参考信号的发射功率变化模式并及时通知终端，终端在获取到发射功率变化信息后，可以在生效时刻后确定参考信号在任一时刻的发射功率而无需等待基站在每次发射功率改变时通知，从而可以实现快速功率控制并减少信令开销。 According to the method of the embodiment of the present invention, the base station determines a transmit power change mode of the reference signal of the primary cell or the secondary cell, and notifies the terminal in time, and after obtaining the transmit power change information, the terminal may determine the reference signal at any time after the effective time. The transmit power is not required to wait for the base station to notify each time the transmit power changes, thereby enabling fast power control and reducing signaling overhead.

图6为本发明一实施例提供的功率控制方法的流程图，如图所示，方法包括：FIG. 6 is a flowchart of a power control method according to an embodiment of the present invention. As shown in the figure, the method includes:

步骤601、终端接收基站在第一时刻通过第二小区发送的第一功率信息。Step 601: The terminal receives first power information that is sent by the base station by using the second cell at the first moment.

在本发明的一个实施例中，终端接收基站在第一时刻通过第二小区的下行物理信道发送的第一功率信息，其中，该下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被所述基站调度。In an embodiment of the present invention, the terminal receives first power information that is sent by the base station through the downlink physical channel of the second cell at the first moment, where the downlink physical channel is scrambled by the power radio network identifier RNTI, and per TTI It is scheduled by the base station.

这里功率RNTI是小区级RNTI，可以复用***中已经定义的小区级RNTI，也可以定义一个新的小区级RNTI用于发送功率信息，下行物理信道可以是物理下行控制信道PDCCH，也可以是物理混合自动重传指示信道PHIC或者，物理控制格式指示信道，还可以采用新的下行物理信道发送功率信息。本发明并不限于此。这些下行物理信道可以在每TTI被基站调度，由于TTI是毫秒周期，因此终端可以快速接收到第一功率信息。Here, the power RNTI is a cell-level RNTI, and the cell-level RNTI that has been defined in the system may be multiplexed, or a new cell-level RNTI may be defined for transmitting power information. The downlink physical channel may be a physical downlink control channel PDCCH, or may be physical. The hybrid automatic retransmission indication channel PHIC or the physical control format indication channel may also use the new downlink physical channel to transmit power information. The invention is not limited to this. These downlink physical channels can be scheduled by the base station every TTI. Since the TTI is a millisecond period, the terminal can quickly receive the first power information.

在本发明的另一实施例中，终端也可以接收基站在第一时刻通过媒体接入控制层MAC控制单元CE发送的第一功率信息。同样也可以实现毫秒级的快速通知。In another embodiment of the present invention, the terminal may also receive the first power information that is sent by the base station through the medium access control layer MAC control unit CE at the first moment. It is also possible to implement fast notifications in milliseconds.

在本发明的一个实施例中，参考信号的功率值可以与功率等级一一对应，每个功率等级对应不同的功率值，相应地，每个功率等级可以对应不同的覆盖范围，功率等级和参考信号的功率值的对应关系也可以采用前述方法实施例中表1来表示。参考信号的功率等级和参考信号的功率值的对应关系可以通过协议约定，分别记录在基站和终端。 In an embodiment of the present invention, the power values of the reference signals may be in one-to-one correspondence with the power levels, and each power level corresponds to a different power value. Accordingly, each power level may correspond to different coverage ranges, power levels, and references. The correspondence of the power values of the signals can also be represented by Table 1 in the foregoing method embodiments. The correspondence between the power level of the reference signal and the power value of the reference signal can be recorded in the base station and the terminal respectively by agreement.

从而基站发送的第一功率信息也可以包括多种信息。例如，第一功率信息可以包括第一小区的参考信号在第二时刻的功率等级，或者，第一小区的参考信号在第二时刻的功率值。Therefore, the first power information sent by the base station may also include a plurality of types of information. For example, the first power information may include a power level of the reference signal of the first cell at the second moment, or a power value of the reference signal of the first cell at the second moment.

又例如，在步骤601之前，终端接收基站通过第二小区的广播信道发送***消息，在***消息中包括第一小区的参考信号的初始功率信息，或者，第一小区的参考信号的初始功率信息和第一小区支持的参考信号的功率信息。其中，初始功率信息为初始功率等级或者初始功率值，第一小区支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者参考信号的至少一个功率值。从而第一功率信息也可以包括第一小区的参考信号在第二时刻的功率等级相对于初始功率等级的变化量，或者，第一小区的参考信号在第二时刻的相对于初始功率值的变化量。For example, before the step 601, the terminal receives the base station to send a system message through the broadcast channel of the second cell, and includes initial power information of the reference signal of the first cell in the system message, or initial power information of the reference signal of the first cell. And power information of the reference signal supported by the first cell. The initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal. Therefore, the first power information may also include a change in the power level of the reference signal of the first cell relative to the initial power level at the second time, or a change of the reference signal of the first cell relative to the initial power value at the second time. the amount.

步骤602、终端根据步骤601中接收到的第一功率信息确定第一小区的参考信号在第二时刻的发射功率。Step 602: The terminal determines, according to the first power information received in step 601, the transmit power of the reference signal of the first cell at the second moment.

其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于 0的整数。这里k可以是基站和终端预先约定或者基站通知终端的参数。Wherein, the second time is later than the first time k transmission time intervals TTI, and k is greater than or equal to An integer of 0. Here k may be a parameter that the base station and the terminal pre-arrange or the base station notifies the terminal.

终端根据步骤601中接收到的第一功率信息可以确定出第一小区的参考信号在第二时刻的发射功率。The terminal may determine, according to the first power information received in step 601, the transmit power of the reference signal of the first cell at the second moment.

例如，第一功率信息为第一小区的参考信号在第二时刻的功率等级，或者，第一小区的参考信号在第二时刻的功率值时，终端直接根据第一功率信息确定出第一小区的参考信号在第二时刻的发射功率。For example, when the first power information is the power level of the reference signal of the first cell at the second time, or the power value of the reference signal of the first cell is the second time, the terminal directly determines the first cell according to the first power information. The reference signal is transmitted at the second moment.

又例如，第一功率信息为第一小区的参考信号在第二时刻的功率等级相对于当前时刻的功率等级的变化量，或者，第一小区的参考信号在第二时刻的功率值相对于当前时刻的功率值的变化量时，终端可以根据当前时刻参考信号的功率等级或者功率值以及上述变化量确定出第一小区的参考信号在第二时刻的发射功率。For another example, the first power information is a change amount of the power level of the reference signal of the first cell at the second time relative to the power level of the current time, or the power value of the reference signal of the first cell at the second time is relative to the current The terminal may determine the transmit power of the reference signal of the first cell at the second time according to the power level or the power value of the current time reference signal and the change amount.

又例如，第一功率信息为第一小区的参考信号在第二时刻的功率等级相对于初始功率等级的变化量，或者，第一小区的参考信号在第二时刻的相对于初始功率值的变化量，终端可以根据参考信号的初始功率等级或者初始功率值以及上述变化量确定出第一小区的参考信号在第二时刻的发射功率。For another example, the first power information is a change amount of the power level of the reference signal of the first cell with respect to the initial power level of the reference signal of the first cell, or a change of the reference signal of the first cell with respect to the initial power value at the second time. The terminal may determine the transmit power of the reference signal of the first cell at the second moment according to the initial power level or the initial power value of the reference signal and the foregoing change amount.

终端确定出第一小区的参考信号在第二时刻的发射功率后，可以用于第二时刻后的信道估计以及无线测量。After determining the transmit power of the reference signal of the first cell at the second moment, the terminal may be used for channel estimation and radio measurement after the second moment.

通过本发明实施例的方法，主小区或者辅小区的参考信号的发射功率变化时，终端可以通过小区内每TTI可被调度的下行物理信道或者MAC CE确定主小区或辅小区的参考信号的发射功率，从而可以实现毫秒级快速功率控制并减少信令开销。When the transmit power of the reference signal of the primary cell or the secondary cell changes, the terminal may determine the transmission of the reference signal of the primary cell or the secondary cell by using the downlink physical channel or the MAC CE that can be scheduled by the TTI in the cell. Power, which enables millisecond-level fast power control and reduces signaling overhead.

图7为本发明另一实施例提供的功率控制方法的流程图，如图所示，方法包括：FIG. 7 is a flowchart of a power control method according to another embodiment of the present invention. As shown in the figure, the method includes:

步骤701、终端接收基站在第一时刻通过第一小区发送的下行物理信号；Step 701: The terminal receives a downlink physical signal that is sent by the base station by using the first cell at the first moment.

第一小区为基站所管理的小区，可以是终端的主小区，也可以是终端的辅小区。The first cell is a cell managed by the base station, and may be a primary cell of the terminal, or may be a terminal Secondary cell.

步骤702、终端根据步骤701接收到的下行物理信号确定第一小区的参考信号在第二时刻的发射功率等级。Step 702: The terminal determines, according to the downlink physical signal received in step 701, a transmit power level of the reference signal of the first cell at the second moment.

其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。The second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0.

终端可以通过多种方式接收基站在第一时刻通过第一小区发送的下行物理信号。The terminal may receive the downlink physical signal sent by the base station through the first cell at the first moment in multiple manners.

例如，第一时刻为用于CRS发送的时域位置，下行物理信号为功率加扰参考信号。终端通过盲检测确定功率加扰参考信号对应的CRS序列，并根据该CRS序列对接收到的功率加扰参考信号解扰来确定第一小区的参考信号在第二时刻的功率等级。For example, the first time instant is a time domain location for CRS transmission, and the downlink physical signal is a power scrambled reference signal. The terminal determines the CRS sequence corresponding to the power scrambled reference signal by blind detection, and descrambles the received power scrambled reference signal according to the CRS sequence to determine the power level of the reference signal of the first cell at the second moment.

又例如，基站和终端可以定义功率序列，每个功率序列和功率等级一一对应，基站根据第一小区的参考信号在第二时刻的功率等级确定一个功率序列作为功率通知序列，也就是说下行物理信号为功率通知序列。第一时刻为用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，所述基站检测到免许可频谱的空闲信道的时域位置。终端根据接收到的功率通知序列确定所述第一小区的参考信号在第二时刻的功率等级。For another example, the base station and the terminal may define a power sequence, where each power sequence and the power level are in one-to-one correspondence, and the base station determines a power sequence as the power notification sequence according to the power level of the reference signal of the first cell at the second time, that is, the downlink. The physical signal is a power notification sequence. The first time instant is a time domain location for primary synchronization signal transmission, or a time domain location for secondary synchronization signal transmission, or the base station detects a time domain location of an idle channel of the unlicensed spectrum. The terminal determines, according to the received power notification sequence, a power level of the reference signal of the first cell at the second moment.

通过本发明实施例的方法，主小区或者辅小区的参考信号的发射功率变化时，终端可以通过小区内下行物理信号确定主小区或辅小区的参考信号的发射功率，从而可以实现毫秒级快速功率控制并减少信令开销。When the transmit power of the reference signal of the primary cell or the secondary cell changes, the terminal may determine the transmit power of the reference signal of the primary cell or the secondary cell by using the downlink physical signal in the cell, so that the millisecond-level fast power can be realized. Control and reduce signaling overhead.

图8为本发明一实施例提供的功率控制方法的流程图，如图所示，方法包括：FIG. 8 is a flowchart of a power control method according to an embodiment of the present invention. As shown in the figure, the method includes:

步骤801、终端接收基站在第一时刻通过第二小区发送的发射功率变化信息；其中，发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和第二时刻。Step 801: The terminal receives the transmit power change information that is sent by the base station by using the second cell at the first time. The transmit power change information includes at least one of the following, the reference signal of the first cell. The transmit power change mode and the second time.

其中，第一小区可以与第二小区为同一小区，也可以是基站所管理的与第二小区不同的一个小区，还可以是由另一基站所管理的小区。The first cell may be the same cell as the second cell, or may be a cell managed by the base station different from the second cell, or may be a cell managed by another base station.

第二时刻可以为第一小区的参考信号的发射功率变化模式的生效时刻，且晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。The second time may be an effective time of the transmission power change mode of the reference signal of the first cell, and is later than the first time k transmission time intervals TTI, where k is an integer greater than or equal to 0.

第一小区的参考信号的发射功率变化模式可以包括至少一个周期及该周期对应的功率信息。以图5为例，在前述方法实施例中已经进行了描述，此处不再赘述。The transmit power change pattern of the reference signal of the first cell may include at least one period and power information corresponding to the period. FIG. 5 is taken as an example, and has been described in the foregoing method embodiments, and details are not described herein again.

又例如，在步骤801之前，基站可以通过第二小区的广播信道发送***消息，在***消息中包括第一小区的参考信号的初始功率信息，或者，第一小区的参考信号的初始功率信息和第一小区支持的参考信号的功率信息。其中，初始功率信息为初始功率等级或者初始功率值，第一小区支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者参考信号的至少一个功率值。从而周期对应的功率信息也可以包括该周期的参考信号的功率等级相对于初始功率等级的变化量，或者，该周期的参考信号的功率值相对于初始功率值的变化量。For example, before step 801, the base station may send a system message by using a broadcast channel of the second cell, including initial power information of the reference signal of the first cell, or initial power information of the reference signal of the first cell in the system message. Power information of a reference signal supported by the first cell. The initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal. Therefore, the power information corresponding to the period may also include the amount of change of the power level of the reference signal of the period relative to the initial power level, or the power value of the reference signal of the period is relative to the initial The amount of change in the initial power value.

若第一小区与第二小区为不同小区，则发射功率变化信息中还需要包括第一小区的PCI指示发射功率变化信息适用于第一小区的参考信号。若第一小区与第二小区为同一小区，则发射功率变化信息中可以包括第一小区的PCI，也可以不包括。If the first cell and the second cell are different cells, the transmit power change information further needs to include a reference signal that the PCI indication transmit power change information of the first cell is applicable to the first cell. If the first cell and the second cell are the same cell, the transmit power change information may include the PCI of the first cell, or may not be included.

由于发射功率是周期变化的，发射功率变化信息相对稳定，终端可以通过多种方式接收基站发送的发射功率变化信息。Since the transmit power is periodically changed, the transmit power change information is relatively stable, and the terminal can receive the transmit power change information sent by the base station in multiple manners.

例如，终端可以接收基站在第一时刻通过第二小区的专用控制信道发送的发射功率变化信息；又例如，终端可以接收基站在第一时刻通过第二小区的广播信道发送的发射功率变化信息；又例如，终端可以接收基站在第一时刻通过第二小区的下行物理信道发送的发射功率变化信息，该下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被基站调度。这里功率RNTI是小区级RNTI，可以复用***中已经定义的小区级RNTI，也可以定义一个新的小区级RNTI用于发送功率信息，下行物理信道可以是物理下行控制信道PDCCH，也可以是物理混合自动重传指示信道PHIC或者，物理控制格式指示信道，还可以采用新的下行物理信道发送功率信息。For example, the terminal may receive the transmit power change information sent by the base station by using the dedicated control channel of the second cell at the first moment; for example, the terminal may receive the transmit power change information that is sent by the base station by using the broadcast channel of the second cell at the first moment; For another example, the terminal may receive the transmit power change information sent by the base station through the downlink physical channel of the second cell at the first moment, the downlink physical channel is scrambled by the power radio network identifier RNTI, and each TTI is scheduled by the base station. Here, the power RNTI is a cell-level RNTI, and the cell-level RNTI that has been defined in the system may be multiplexed, or a new cell-level RNTI may be defined for transmitting power information. The downlink physical channel may be a physical downlink control channel PDCCH, or may be physical. The hybrid automatic retransmission indication channel PHIC or the physical control format indication channel may also use the new downlink physical channel to transmit power information.

步骤802、终端根据步骤801中接收到的发射功率变化信息确定第一小区的参考信号在第二时刻之后的发射功率。Step 802: The terminal determines, according to the transmit power change information received in step 801, the transmit power of the reference signal of the first cell after the second time.

终端在接收到发射功率变化信息后，可以根据发射功率变化模式确定第一小区的参考信号在第二时刻之后任一时刻的发射功率。例如，发射功率变化模式中包括周期1为2毫秒，周期2为3毫秒，周期1对应的发射功率为20dBm，周期2对应的发射功率为8dBm，则在生效时刻之后第8毫秒对应周期2，生效时刻之后第8毫秒的发射功率为8dBm。需要说明的是，上述均只是举例，本发明并不限于此。 After receiving the transmit power change information, the terminal may determine, according to the transmit power change mode, the transmit power of the reference signal of the first cell at any time after the second time. For example, the transmit power change mode includes a period 1 of 2 milliseconds, a period 2 of 3 milliseconds, a period 1 corresponding to a transmit power of 20 dBm, and a period 2 corresponding to a transmit power of 8 dBm, and the 8th millisecond corresponds to a period 2 after the effective time. The transmit power at 8 ms after the effective time is 8 dBm. It should be noted that the above are merely examples, and the present invention is not limited thereto.

通过本发明实施例的方法，终端在获取到主小区或者辅小区发射功率变化信息后，可以在生效时刻后确定参考信号在任一时刻的发射功率而无需等待基站在每次发射功率改变时通知，从而可以实现快速功率控制并减少信令开销。After obtaining the transmission power change information of the primary cell or the secondary cell, the terminal may determine the transmit power of the reference signal at any time after the effective time without waiting for the base station to notify each time the transmit power changes. Thereby fast power control and reduced signaling overhead can be achieved.

图9为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在基站等无线接入网控制设备中，此处为方便描述，以基站为例进行说明，本发明实施例并不限于此。如图所示，该功率控制装置900，包括：第一确定单元901，第二确定单元902以及收发单元903。其中：FIG. 9 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided in the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device may be deployed in a radio access network control device such as a base station. For convenience of description, the base station is taken as an example for description. The embodiment of the present invention is not limited thereto. As shown, the power control device 900 includes a first determining unit 901, a second determining unit 902, and a transceiver unit 903. among them:

第一确定单元901，用于确定第一小区的参考信号在第二时刻的发射功率。The first determining unit 901 is configured to determine a transmit power of the reference signal of the first cell at the second moment.

在本发明实施例中，都是以功率控制装置900通过的部署了该装置的基站所管理的第二小区通知终端为例。其中，第一小区可以与第二小区为同一小区，也可以是基站所管理的与第二小区不同的一个小区，还可以是由另一基站所管理的小区。In the embodiment of the present invention, the second cell notification terminal managed by the base station through which the device is deployed by the power control device 900 is taken as an example. The first cell may be the same cell as the second cell, or may be a cell managed by the base station different from the second cell, or may be a cell managed by another base station.

在本发明的一个实施例中，在CA方式下，第一小区与第二小区为同一小区时，可以是主小区，也可以是辅小区。第一确定单元901可以从支持的参考信号发射功率中确定一个作为第二时刻的发射功率，例如，第一确定单元901确定-78dBm为第一小区的参考信号在第二时刻的发射功率，也就是说第一小区的参考信号的发射功率在第二时刻将按照-78dBm发射。需要说明的是，这里的数值只是为了举例方便，并不限于此。In an embodiment of the present invention, when the first cell and the second cell are the same cell in the CA mode, the primary cell may be a primary cell or a secondary cell. The first determining unit 901 may determine one transmit power as the second time from the supported reference signal transmit power, for example, the first determining unit 901 determines that -78 dBm is the transmit power of the reference signal of the first cell at the second time, and also That is to say, the transmission power of the reference signal of the first cell will be transmitted at -78 dBm at the second moment. It should be noted that the numerical values herein are merely for convenience of example, and are not limited thereto.

在本发明的另一实施例中，第一小区与第二小区为不同小区，第一小区为辅小区，第二小区为主小区。如果第一小区与第二小区为同一基站管理，则第一确定单元901可以从支持的参考信号发射功率中确定一个作为第二时刻的发射功率；如果第一小区与第二小区为不同基站管理，则第一确定单元901可以通过基站间的X2接口从管理第一小区的基站获取第一小区的参考信号在第二时刻的发射功率。In another embodiment of the present invention, the first cell and the second cell are different cells, and the first cell The secondary cell is the secondary cell. If the first cell and the second cell are managed by the same base station, the first determining unit 901 may determine one transmit power as the second time from the supported reference signal transmit power; if the first cell and the second cell are different base station management The first determining unit 901 may acquire the transmit power of the reference signal of the first cell at the second time from the base station managing the first cell by using the X2 interface between the base stations.

第二确定单元902，用于根据第一确定单元901所确定的第一小区的参考信号在第二时刻的发射功率确定第一功率信息。The second determining unit 902 is configured to determine, according to the transmit power of the reference signal of the first cell determined by the first determining unit 901, the first power information.

在本发明的一个实施例中，参考信号的功率值可以与功率等级一一对应，每个功率等级对应不同的功率值，相应地，每个功率等级可以对应不同的覆盖范围，功率等级和参考信号的功率值的对应关系可以采用表1来表示，参考信号的功率值单位为分贝毫瓦(dBm)，如前述方法实施例中表1所示，功率等级0对应的参考信号的功率值为-198dBm。参考信号的功率等级和参考信号的功率值的对应关系可以通过协议约定，分别记录在基站和终端。In an embodiment of the present invention, the power values of the reference signals may be in one-to-one correspondence with the power levels, and each power level corresponds to a different power value. Accordingly, each power level may correspond to different coverage ranges, power levels, and references. The corresponding relationship between the power values of the signals can be represented by Table 1. The power value of the reference signal is in decibels milliwatts (dBm). As shown in Table 1 in the foregoing method embodiment, the power value of the reference signal corresponding to the power level 0 is -198dBm. The correspondence between the power level of the reference signal and the power value of the reference signal can be recorded in the base station and the terminal respectively by agreement.

需要说明的是，本发明上述各实施例中所列举的各数值，均是为了进行举例说明，本发明并不以此为限。It should be noted that the numerical values listed in the above embodiments of the present invention are for illustrative purposes, and the present invention is not limited thereto.

从而第二确定单元902确定出的第一功率信息也可以包括多种信息。例如，第一功率信息可以包括第一小区的参考信号在第二时刻的功率等级，或者，第一小区的参考信号在第二时刻的功率值。Therefore, the first power information determined by the second determining unit 902 may also include a plurality of types of information. For example, the first power information may include a power level of the reference signal of the first cell at the second moment, or a power value of the reference signal of the first cell at the second moment.

又例如，第一功率信息也可以包括第一小区的参考信号在第二时刻的功率等级相对于当前时刻的功率等级的变化量，或者，第一小区的参考信号在第二时刻的功率值相对于当前时刻的功率值的变化量。其中，当前时刻的发射功率在基站没有通知终端前是不会发生变化的，如果基站在第一时刻通知终端发射功率改变，则参考信号在当前时刻的功率等级和第一时刻的功率等级是相同的，或者参考信号在当前时刻的功率值和第一时刻的功率值是相同的。For another example, the first power information may also include a change amount of the power level of the reference signal of the first cell with respect to the power level of the current time, or the power value of the reference signal of the first cell at the second time is relatively The amount of change in the power value at the current time. The power of the current time does not change before the base station not informs the terminal. If the base station notifies the terminal of the transmission power change at the first moment, the power level of the reference signal at the current time is the same as the power level of the first time. , or the power value of the reference signal at the current time is the same as the power value at the first moment. of.

又例如，收发单元903可以通过第二小区的广播信道发送***消息，在***消息中包括第一小区的参考信号的初始功率信息，或者，第一小区的参考信号的初始功率信息和第一小区支持的参考信号的功率信息。其中，初始功率信息为初始功率等级或者初始功率值，第一小区支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者参考信号的至少一个功率值。从而第一功率信息也可以包括第一小区的参考信号在第二时刻的功率等级相对于初始功率等级的变化量，或者，第一小区的参考信号的初始功率值相对于初始功率值的变化量。For example, the transceiver unit 903 may send a system message by using a broadcast channel of the second cell, and include initial power information of the reference signal of the first cell in the system message, or initial power information of the reference signal of the first cell and the first cell. Power information of supported reference signals. The initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal. Therefore, the first power information may also include a change amount of the power level of the reference signal of the first cell with respect to the initial power level, or a change amount of the initial power value of the reference signal of the first cell with respect to the initial power value. .

收发单元903，用于在第一时刻通过第二小区向终端发送第二确定单元902所确定的第一功率信息以使得终端根据第一功率信息确定第一小区的参考信号在第二时刻的发射功率，其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。这里k可以是基站和终端预先约定或者基站通知终端的参数。The transceiver unit 903 is configured to send the first power information determined by the second determining unit 902 to the terminal by using the second cell at the first time, so that the terminal determines, according to the first power information, the reference signal of the first cell to be transmitted at the second time. Power, wherein the second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to zero. Here k may be a parameter that the base station and the terminal pre-arrange or the base station notifies the terminal.

为了达到快速通知终端发射功率变化的目的，收发单元903可以通过多种方式通知终端。In order to achieve the purpose of quickly notifying the terminal of the transmission power change, the transceiver unit 903 can notify the terminal in various ways.

在本发明的一个实施例中，收发单元903在第一时刻通过第二小区的下行物理信道向终端发送第二确定单元902所确定的第一功率信息，其中，该下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被所述基站调度。In an embodiment of the present invention, the transceiver unit 903 transmits the first power information determined by the second determining unit 902 to the terminal by using the downlink physical channel of the second cell, where the downlink physical channel is used by the power wireless network. The RNTI is identified as scrambled and scheduled by the base station at every TTI.

这里功率RNTI是小区级RNTI，可以复用***中已经定义的小区级RNTI，也可以定义一个新的小区级RNTI用于发送功率信息，下行物理信道可以是物理下行控制信道PDCCH，也可以是物理混合自动重传指示信道PHIC或者，物理控制格式指示信道，还可以采用新的下行物理信道发送功率信息。本发明并不限于此。这些下行物理信道可以在每TTI被基站调度，由于TTI是毫秒周期，从而可以将第一功率信息快速地通知到终端。Here, the power RNTI is a cell-level RNTI, and the cell-level RNTI that has been defined in the system may be multiplexed, or a new cell-level RNTI may be defined for transmitting power information, and the downlink physical channel may be The downlink control channel PDCCH may also be a physical hybrid automatic retransmission indication channel PHIC or a physical control format indication channel, and may also use a new downlink physical channel to transmit power information. The invention is not limited to this. These downlink physical channels can be scheduled by the base station every TTI, and since the TTI is a millisecond period, the first power information can be quickly notified to the terminal.

在本发明的另一实施例中，收发单元903也可以在第一时刻通过媒体接入控制层MAC控制单元CE向终端发送第二确定单元902确定的第一功率信息。同样也可以实现毫秒级的快速通知。In another embodiment of the present invention, the transceiver unit 903 may also send the first power information determined by the second determining unit 902 to the terminal through the medium access control layer MAC control unit CE at the first moment. It is also possible to implement fast notifications in milliseconds.

需要说明的是，本发明实施例中，第一确定单元901、第二确定单元902，收发单元903可以通过一个或多个处理器实现。上述各单元之间的交互流程具体可以参考图1所示方法实施例中的描述，这里不再赘述。It should be noted that, in the embodiment of the present invention, the first determining unit 901, the second determining unit 902, and the transceiver unit 903 may be implemented by one or more processors. For details about the interaction process between the foregoing units, refer to the description in the method embodiment shown in FIG. 1 , and details are not described herein again.

本发明实施例的功率控制装置，在确定主小区或者辅小区的参考信号的发射功率变化时，通过每TTI调度的下行物理信道或者MAC CE快速通知终端，从而可以实现毫秒级快速功率控制并减少信令开销。The power control apparatus of the embodiment of the present invention can quickly notify the terminal by using the downlink physical channel or the MAC CE scheduled by the TTI when determining the transmission power of the reference signal of the primary cell or the secondary cell, thereby achieving millisecond-level fast power control and reducing Signaling overhead.

图10为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在基站等无线接入网控制设备中，此处为方便描述，以基站为例进行说明，本发明实施例并不限于此。如图所示，该功率控制装置1000，包括：确定单元1001和收发单元1002。其中：FIG. 10 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided by the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device may be deployed in a radio access network control device such as a base station. For convenience of description, the base station is taken as an example for description. The embodiment of the present invention is not limited thereto. As shown, the power control device 1000 includes a determining unit 1001 and a transceiver unit 1002. among them:

确定单元1001，用于确定第一小区的参考信号在第二时刻的功率等级。The determining unit 1001 is configured to determine a power level of the reference signal of the first cell at the second moment.

第一小区为部署了功率控制装置1000的基站所管理的小区，可以是终端的主小区，也可以是终端的辅小区。在LAA***中，第一确定单元1001可以根据多种方式来确定主小区或者辅小区中参考信号在不同时刻的发射功率。由于在前述实施例中已经进行了描述，此处不再赘述。The first cell is a cell managed by a base station in which the power control device 1000 is deployed, and may be a primary cell of the terminal or a secondary cell of the terminal. In the LAA system, the first determining unit 1001 may determine the transmit power of the reference signal in the primary cell or the secondary cell at different times according to various manners. Since the description has been made in the foregoing embodiments, details are not described herein again.

参考信号的功率等级可以与功率值一一对应，每个功率等级对应不同的功率值，相应地，每个功率等级可以对应不同的覆盖范围，功率等级和参考信号的功率值的对应关系也可以采用前述方法实施中的表1来表示。参考信号的功率等级和参考信号的功率值的对应关系可以通过协议约定，分别记录在基站和终端。The power level of the reference signal may be in one-to-one correspondence with the power value, and each power level corresponds to a different power value. Accordingly, each power level may correspond to different coverage ranges, power levels and references. The correspondence of the power values of the signals can also be expressed by Table 1 in the implementation of the aforementioned method. The correspondence between the power level of the reference signal and the power value of the reference signal can be recorded in the base station and the terminal respectively by agreement.

确定单元1001根据的第一小区的参考信号在第二时刻的发射功率确定出第一小区的参考信号在第二时刻的功率等级。The determining unit 1001 determines, according to the transmit power of the reference signal of the first cell at the second time, the power level of the reference signal of the first cell at the second time.

收发单元1002，用于在第一时刻通过第一小区发送下行物理信号，以使得终端根据下行物理信号确定第一小区的参考信号在第二时刻的功率等级；其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。The transceiver unit 1002 is configured to send, by using the first cell, a downlink physical signal, so that the terminal determines, according to the downlink physical signal, a power level of the reference signal of the first cell at the second time; wherein, the second time is later than the first At time k transmission time intervals TTI, k is an integer greater than or equal to 0.

收发单元1002可以采用多种下行物理信号发送第一确定单元1001所确定的第一小区的参考信号在第二时刻的功率等级。The transceiver unit 1002 may send, by using multiple downlink physical signals, a power level of the reference signal of the first cell determined by the first determining unit 1001 at the second moment.

在本发明的一个实施例中，收发单元1002可以选择小区专用参考信号(cell-specific reference signal，CRS)发送的时域位置作为第一时刻，例如，常规循环前缀时，天线口0和1的每个时隙的第1个和第5个符号处。需要说明的是，这里只是举例，并不限于此。In an embodiment of the present invention, the transceiver unit 1002 may select a time domain location sent by a cell-specific reference signal (CRS) as the first time, for example, when the regular cyclic prefix is used, the antenna ports 0 and 1 At the 1st and 5th symbols of each time slot. It should be noted that this is only an example and is not limited thereto.

收发单元1002根据确定单元1001所确定的第一小区的参考信号在第二时刻的功率等级对CRS序列加扰获得功率加扰参考信号。The transceiver unit 1002 scrambles the CRS sequence to obtain a power scrambled reference signal according to the power level of the reference signal of the first cell determined by the determining unit 1001 at the second time.

收发单元1002根据初始化参数序列{c₀，c₁，…，c_m}生成功率加扰参考信号，在CRS发送的时刻发送该功率加扰参考信号序列。加扰的方法在前述方法实施例中已进行描述，此处不再赘述。终端可以通过盲检测确定功率加扰参考信号对应的CRS序列，并根据该CRS序列对功率加扰参考信号序列进行解扰从而获得第一小区的参考信号在第二时刻的功率等级。The transceiver unit 1002 generates a power scrambled reference signal according to the initialization parameter sequence {c ₀ , c ₁ , . . . , c _m }, and transmits the power scrambled reference signal sequence at the time of CRS transmission. The method of scrambling has been described in the foregoing method embodiments, and details are not described herein again. The terminal may determine the CRS sequence corresponding to the power scrambled reference signal by blind detection, and perform descrambling on the power scrambled reference signal sequence according to the CRS sequence to obtain a power level of the reference signal of the first cell at the second moment.

在本发明的另一个实施例中，基站和终端可以定义功率序列，每个功率序列和功率等级一一对应，收发单元1002可以根据第一小区的参考信号在第二时刻的功率等级确定该功率等级对应的功率序列作为功率通知序列。例如，功率等级0对应的功率序列为{a₀₀，a₀₁，…，a_0p}，p为正整数，功率等级 1对应的功率序列为{a₁₀，a₁₁，…，a_1p}，若步骤201中确定的第一小区的参考信号在第二时刻的功率等级为1，则将{a₁₀，a₁₁，…，a_1p}作为功率通知序列。In another embodiment of the present invention, the base station and the terminal may define a power sequence, and each power sequence and the power level are in one-to-one correspondence, and the transceiver unit 1002 may determine the power according to the power level of the reference signal of the first cell at the second moment. The power sequence corresponding to the level is used as the power notification sequence. For example, the power level corresponding to 0 power sequence _{_{{a 00, a 01, ...}} , a 0p}, p is a positive integer, power level 1 corresponding to the power sequence _{_{{a 10, a 11, ...}} , a 1p}, if If the power level of the reference signal of the first cell determined in step 201 is 1 at the second time, {a ₁₀ , a ₁₁ , . . . , a _1p } is used as the power notification sequence.

收发单元1002可以选择主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，检测到免许可频谱的空闲信道的时域位置发送所确定的功率通知序列。由于在前述方法实施例中已经进行描述，此处不再赘述。The transceiver unit 1002 may select a time domain location of the primary synchronization signal transmission, or a time domain location for secondary synchronization signal transmission, or a time domain location of the idle channel in which the unlicensed spectrum is detected to transmit the determined power notification sequence. Since it has been described in the foregoing method embodiments, it will not be described again here.

需要说明的是，本发明实施例中，确定单元1001、收发单元1002可以通过一个或多个处理器实现。上述各单元之间的交互流程具体可以参考图2所示方法实施例中的描述，这里不再赘述。It should be noted that, in the embodiment of the present invention, the determining unit 1001 and the transceiver unit 1002 may be implemented by one or more processors. For details of the interaction process between the foregoing units, refer to the description in the method embodiment shown in FIG. 2, and details are not described herein again.

本发明实施例的功率控制装置，在确定主小区或者辅小区的参考信号的发射功率变化时，通过下行物理信号快速通知终端，从而可以实现毫秒级快速功率控制并减少信令开销。The power control apparatus of the embodiment of the present invention can quickly notify the terminal by using the downlink physical signal when determining the change of the transmit power of the reference signal of the primary cell or the secondary cell, thereby implementing millisecond-level fast power control and reducing signaling overhead.

图11为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在基站等无线接入网控制设备中，此处为方便描述，以基站为例进行说明，本发明实施例并不限于此。如图所示，该功率控制装置1100，包括：确定单元1101和收发单元1102。其中，FIG. 11 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided in the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device may be deployed in a radio access network control device such as a base station. For convenience of description, the base station is taken as an example for description. The embodiment of the present invention is not limited thereto. As shown, the power control device 1100 includes a determining unit 1101 and a transceiver unit 1102. among them,

确定单元1101，用于确定第一小区的参考信号在第二时刻的发射功率变化信息。其中，发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和第二时刻。The determining unit 1101 is configured to determine transmit power change information of the reference signal of the first cell at the second moment. The transmit power change information includes at least one of the following: a transmit power change mode and a second time of the reference signal of the first cell.

在本发明实施例中，都是以功率控制装置1100通过的部署了该装置的基站所管理的第二小区通知终端为例。其中，第一小区可以与第二小区为同一小区，也可以是基站所管理的与第二小区不同的一个小区，还可以是由另一基站所管理的小区。In the embodiment of the present invention, the second cell notification terminal managed by the base station through which the device is deployed by the power control device 1100 is taken as an example. The first cell may be the same cell as the second cell, or may be a cell managed by the base station different from the second cell, or may be another The cell managed by the base station.

在LAA***中，确定单元1101可以根据免许可频谱占用时长，或者，小区打开(cell on)以及小区关闭等来确定主小区或者辅小区中参考信号的发射功率变化模式。可参见前述方式实施例，此处不再赘述。In the LAA system, the determining unit 1101 may determine a transmit power change mode of the reference signal in the primary cell or the secondary cell according to the duration of the unlicensed spectrum occupation, or the cell on and the cell off. For details, refer to the foregoing embodiments, and details are not described herein again.

又例如，收发单元1102可以通过第二小区的广播信道发送***消息，在***消息中包括第一小区的参考信号的初始功率信息，或者，第一小区的参考信号的初始功率信息和第一小区支持的参考信号的功率信息。其中，初始功率信息为初始功率等级或者初始功率值，第一小区支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者参考信号的至少一个功率值。从而周期对应的功率信息也可以包括该周期的参考信号的功率等级相对于初始功率等级的变化量，或者，该周期的参考信号的功率值相对于初始功率值的变化量。 For another example, the transceiver unit 1102 may send a system message by using a broadcast channel of the second cell, including initial power information of the reference signal of the first cell in the system message, or initial power information of the reference signal of the first cell and the first cell. Power information of supported reference signals. The initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal. Therefore, the power information corresponding to the period may also include the amount of change of the power level of the reference signal of the period relative to the initial power level, or the amount of change of the power value of the reference signal of the period with respect to the initial power value.

在本发明的另一实施例中，第一小区与第二小区为不同小区，第一小区为辅小区，第二小区为主小区。如果第一小区与第二小区为不同基站管理，则确定单元1101可以通过基站间的X2接口从管理第一小区的基站获取第一小区的参考信号在第二时刻的发射功率变化信息。In another embodiment of the present invention, the first cell and the second cell are different cells, the first cell is a secondary cell, and the second cell is a primary cell. If the first cell and the second cell are managed by different base stations, the determining unit 1101 may acquire, by using the X2 interface between the base stations, the transmit power change information of the reference signal of the first cell at the second time from the base station managing the first cell.

收发单元1102，用于在第一时刻通过第二小区向终端发送确定单元1101所确定的发射功率变化信息。The transceiver unit 1102 is configured to send, by using the second cell, the transmit power change information determined by the determining unit 1101 to the terminal at the first moment.

收发单元1102可以采用多种方式向终端发送发射功率变化信息，由于发射功率是周期变化的，发射功率变化信息相对稳定，因此无需采用快速通知的方式通知到终端。The transceiver unit 1102 can send the transmission power change information to the terminal in multiple manners. Since the transmission power is periodically changed, the transmission power change information is relatively stable, and therefore, the terminal is not required to be notified by means of fast notification.

例如，收发单元1102可以在第一时刻通过第二小区的专用控制信道向终端发送发射功率变化信息；又例如，收发单元1102可以在第一时刻通过第二小区的广播信道向终端发送发射功率变化信息；又例如，收发单元1102也可以在第一时刻通过第二小区的下行物理信道向终端发送发射功率变化信息，该下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被基站调度。这里功率RNTI是小区级RNTI，可以复用***中已经定义的小区级RNTI，也可以定义一个新的小区级RNTI用于发送功率信息，下行物理信道可以是物理下行控制信道PDCCH，也可以是物理混合自动重传指示信道PHIC或者，物理控制格式指示信道，还可以采用新的下行物理信道发送功率信息。For example, the transceiver unit 1102 may send the transmit power change information to the terminal through the dedicated control channel of the second cell at the first moment; for example, the transceiver unit 1102 may send the transmit power change to the terminal through the broadcast channel of the second cell at the first moment. For example, the transceiver unit 1102 may also send transmit power change information to the terminal through the downlink physical channel of the second cell at the first moment, the downlink physical channel is scrambled by the power radio network identifier RNTI, and each TTI is scheduled by the base station. Here, the power RNTI is a cell-level RNTI, and the cell-level RNTI that has been defined in the system may be multiplexed, or a new cell-level RNTI may be defined for transmitting power information. The downlink physical channel may be a physical downlink control channel PDCCH, or may be physical. The hybrid automatic retransmission indication channel PHIC or the physical control format indication channel may also use the new downlink physical channel to transmit power information.

需要说明的是，上述均只是举例，本发明并不限于此。 It should be noted that the above are merely examples, and the present invention is not limited thereto.

需要说明的是，本发明实施例中，确定单元1101、收发单元1102可以通过一个或多个处理器实现。上述各单元之间的交互流程具体可以参考图4所示方法实施例中的描述，这里不再赘述。It should be noted that, in the embodiment of the present invention, the determining unit 1101 and the transceiver unit 1102 may be implemented by one or more processors. For details about the interaction process between the foregoing units, refer to the description in the method embodiment shown in FIG. 4, and details are not described herein again.

本发明实施例的功率控制装置，在确定主小区或者辅小区的参考信号的发射功率变化模式时及时通知终端，终端在获取到发射功率变化信息后，可以在生效时刻后确定参考信号在任一时刻的发射功率而无需等待每次发射功率改变时通知，从而可以实现快速功率控制并减少信令开销。The power control apparatus of the embodiment of the present invention notifies the terminal in time when determining the transmission power change mode of the reference signal of the primary cell or the secondary cell, and after obtaining the transmission power change information, the terminal may determine the reference signal at any time after the effective time. The transmit power does not need to wait for a notification when each transmit power changes, thereby enabling fast power control and reducing signaling overhead.

图12为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在终端中，本发明实施例并不限于此。如图所示，该功率控制装置1200，包括：确定单元1201和收发单元1202。其中：FIG. 12 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided in the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device can be deployed in the terminal, and the embodiment of the present invention is not limited thereto. As shown, the power control device 1200 includes a determining unit 1201 and a transceiver unit 1202. among them:

收发单元1202，用于接收基站在第一时刻通过第二小区发送的第一功率信息。The transceiver unit 1202 is configured to receive first power information that is sent by the base station by using the second cell at the first moment.

在本发明的一个实施例中，收发单元1202接收基站在第一时刻通过第二小区的下行物理信道发送的第一功率信息，其中，该下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被所述基站调度。In an embodiment of the present invention, the transceiver unit 1202 receives first power information that is sent by the base station through the downlink physical channel of the second cell at the first moment, where the downlink physical channel is scrambled by the power wireless network identifier RNTI, and Each TTI is scheduled by the base station.

这里功率RNTI是小区级RNTI，可以复用***中已经定义的小区级RNTI，也可以定义一个新的小区级RNTI用于发送功率信息，下行物理信道可以是物理下行控制信道PDCCH，也可以是物理混合自动重传指示信道PHIC或者，物理控制格式指示信道，还可以采用新的下行物理信道发送功率信息。本发明并不限于此。这些下行物理信道可以在每TTI被基站调度，由于TTI是毫秒周期，因此收发单元1202可以快速接收到第一功率信息。Here, the power RNTI is a cell-level RNTI, and the cell-level RNTI that has been defined in the system may be multiplexed, or a new cell-level RNTI may be defined for transmitting power information. The downlink physical channel may be a physical downlink control channel PDCCH, or may be physical. The hybrid automatic retransmission indication channel PHIC or the physical control format indication channel may also use the new downlink physical channel to transmit power information. The invention is not limited to this. These downlink physical channels can be scheduled by the base station every TTI. Since the TTI is a millisecond period, the transceiver unit 1202 can quickly receive the first power information.

在本发明的另一实施例中，收发单元1202也可以接收基站在第一时刻通过媒体接入控制层MAC控制单元CE发送的第一功率信息。同样也可以实现毫秒级的快速通知。 In another embodiment of the present invention, the transceiver unit 1202 may also receive the first power information sent by the base station through the medium access control layer MAC control unit CE at the first moment. It is also possible to implement fast notifications in milliseconds.

在本发明的一个实施例中，参考信号的功率值可以与功率等级一一对应，每个功率等级对应不同的功率值，相应地，每个功率等级可以对应不同的覆盖范围，功率等级和参考信号的功率值的对应关系也可以采用前述方法实施例中表1来表示。参考信号的功率等级和参考信号的功率值的对应关系可以通过协议约定，分别记录在基站和终端。In an embodiment of the present invention, the power values of the reference signals may be in one-to-one correspondence with the power levels, and each power level corresponds to a different power value. Accordingly, each power level may correspond to different coverage ranges, power levels, and references. The correspondence of the power values of the signals can also be represented by Table 1 in the foregoing method embodiments. The correspondence between the power level of the reference signal and the power value of the reference signal can be recorded in the base station and the terminal respectively by agreement.

又例如，收发单元1202还可以接收基站通过第二小区的广播信道发送的***消息，在***消息中包括第一小区的参考信号的初始功率信息，或者，第一小区的参考信号的初始功率信息和第一小区支持的参考信号的功率信息。其中，初始功率信息为初始功率等级或者初始功率值，第一小区支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者参考信号的至少一个功率值。从而第一功率信息也可以包括第一小区的参考信号在第二时刻的功率等级相对于初始功率等级的变化量，或者，第一小区的参考信号在第二时刻的相对于初始功率值的变化量。 For example, the transceiver unit 1202 may further receive a system message sent by the base station by using a broadcast channel of the second cell, and include initial power information of the reference signal of the first cell in the system message, or initial power information of the reference signal of the first cell. And power information of the reference signal supported by the first cell. The initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal. Therefore, the first power information may also include a change in the power level of the reference signal of the first cell relative to the initial power level at the second time, or a change of the reference signal of the first cell relative to the initial power value at the second time. the amount.

确定单元1201，用于根据收发单元1202所接收到的第一功率信息确定第一小区的参考信号在第二时刻的发射功率。The determining unit 1201 is configured to determine, according to the first power information received by the transceiver unit 1202, the transmit power of the reference signal of the first cell at the second moment.

其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。这里k可以是基站和终端预先约定或者基站通知终端的参数。The second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0. Here k may be a parameter that the base station and the terminal pre-arrange or the base station notifies the terminal.

确定单元1201根据收发单元1202所接收到的第一功率信息可以确定出第一小区的参考信号在第二时刻的发射功率。The determining unit 1201 may determine, according to the first power information received by the transceiver unit 1202, the transmit power of the reference signal of the first cell at the second moment.

例如，第一功率信息为第一小区的参考信号在第二时刻的功率等级，或者，第一小区的参考信号在第二时刻的功率值时，确定单元1201直接根据第一功率信息确定出第一小区的参考信号在第二时刻的发射功率。For example, when the first power information is the power level of the reference signal of the first cell at the second time, or the power value of the reference signal of the first cell at the second time, the determining unit 1201 directly determines the first according to the first power information. The transmit power of the reference signal of a cell at the second moment.

又例如，第一功率信息为第一小区的参考信号在第二时刻的功率等级相对于当前时刻的功率等级的变化量，或者，第一小区的参考信号在第二时刻的功率值相对于当前时刻的功率值的变化量时，确定单元1201可以根据当前时刻参考信号的功率等级或者功率值以及上述变化量确定出第一小区的参考信号在第二时刻的发射功率。For another example, the first power information is a change amount of the power level of the reference signal of the first cell at the second time relative to the power level of the current time, or the power value of the reference signal of the first cell at the second time is relative to the current When the amount of change of the power value is changed, the determining unit 1201 may determine the transmit power of the reference signal of the first cell at the second time according to the power level or the power value of the current time reference signal and the change amount.

又例如，第一功率信息为第一小区的参考信号在第二时刻的功率等级相对于初始功率等级的变化量，或者，第一小区的参考信号在第二时刻的相对于初始功率值的变化量，确定单元1201可以根据参考信号的初始功率等级或者初始功率值以及上述变化量确定出第一小区的参考信号在第二时刻的发射功率。For another example, the first power information is a change amount of the power level of the reference signal of the first cell with respect to the initial power level of the reference signal of the first cell, or a change of the reference signal of the first cell with respect to the initial power value at the second time. The quantity determining unit 1201 may determine the transmit power of the reference signal of the first cell at the second time according to the initial power level or the initial power value of the reference signal and the foregoing change amount.

确定单元1201确定出第一小区的参考信号在第二时刻的发射功率后，可以用于第二时刻后的信道估计以及无线测量。 The determining unit 1201 determines the channel power of the reference signal of the first cell after the second time, and can be used for channel estimation and radio measurement after the second time.

需要说明的是，本发明实施例中，确定单元1201、收发单元1202可以通过一个或多个处理器实现。上述各单元之间的交互流程具体可以参考图6所示方法实施例中的描述，这里不再赘述。It should be noted that, in the embodiment of the present invention, the determining unit 1201 and the transceiver unit 1202 may be implemented by one or more processors. For details about the interaction process between the foregoing units, reference may be made to the description in the method embodiment shown in FIG. 6, and details are not described herein again.

本发明实施例的功率控制装置，在主小区或者辅小区的参考信号的发射功率变化时，可以通过小区内每TTI可被调度的下行物理信道或者MAC CE确定主小区或辅小区的参考信号的发射功率，从而可以实现毫秒级快速功率控制并减少信令开销。In the power control apparatus of the embodiment of the present invention, when the transmit power of the reference signal of the primary cell or the secondary cell changes, the reference signal of the primary cell or the secondary cell may be determined by the downlink physical channel or the MAC CE that can be scheduled by each TTI in the cell. The transmit power enables millisecond-level fast power control and reduces signaling overhead.

图13为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在终端中，本发明实施例并不限于此。如图所示，该功率控制装置1300，包括：确定单元1301和收发单元1302FIG. 13 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided in the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device can be deployed in the terminal, and the embodiment of the present invention is not limited thereto. As shown, the power control device 1300 includes: a determining unit 1301 and a transceiver unit 1302.

收发单元1302，用于接收基站在第一时刻通过第一小区发送的下行物理信号。其中，第一小区为基站所管理的小区，可以是部署了功率控制装置1300的终端的主小区，也可以是该终端的辅小区。The transceiver unit 1302 is configured to receive a downlink physical signal that is sent by the base station by using the first cell at the first moment. The first cell is a cell managed by the base station, and may be a primary cell of the terminal where the power control device 1300 is deployed, or may be a secondary cell of the terminal.

确定单元1301，用于根据收发单元1302接收到的下行物理信号确定第一小区的参考信号在第二时刻的发射功率等级。The determining unit 1301 is configured to determine, according to the downlink physical signal received by the transceiver unit 1302, a transmit power level of the reference signal of the first cell at the second moment.

收发单元1302可以通过多种方式接收基站在第一时刻通过第一小区发送的下行物理信号。The transceiver unit 1302 can receive the downlink physical signal sent by the base station through the first cell at the first moment in multiple manners.

例如，第一时刻为用于CRS发送的时域位置，下行物理信号为功率加扰参考信号。收发单元1302通过盲检测确定收发单元1302在第一时刻接收到的功率加扰参考信号对应的CRS序列，并根据该CRS序列对接收到的功率加扰参考信号解扰来确定第一小区的参考信号在第二时刻的功率等级。For example, the first time instant is a time domain location for CRS transmission, and the downlink physical signal is a power scrambled reference signal. The transceiver unit 1302 determines, by blind detection, a CRS sequence corresponding to the power scrambled reference signal received by the transceiver unit 1302 at the first moment, and descrambles the received power scrambled reference signal according to the CRS sequence to determine a reference of the first cell. The power level of the signal at the second moment.

又例如，基站和终端可以定义功率序列，每个功率序列和功率等级一一对应，基站根据第一小区的参考信号在第二时刻的功率等级确定一个功率序列作为功率通知序列，也就是说下行物理信号为功率通知序列。第一时刻为用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，基站检测到免许可频谱的空闲信道的时域位置。确定单元1301根据收发单元1302接收到的功率通知序列确定所述第一小区的参考信号在第二时刻的功率等级。For another example, the base station and the terminal can define a power sequence, each power sequence and power level. Correspondingly, the base station determines a power sequence as a power notification sequence according to the power level of the reference signal of the first cell at the second moment, that is, the downlink physical signal is a power notification sequence. The first time instant is a time domain location for primary synchronization signal transmission, or a time domain location for secondary synchronization signal transmission, or the time domain location of the idle channel for which the base station detects the unlicensed spectrum. The determining unit 1301 determines the power level of the reference signal of the first cell at the second moment according to the power notification sequence received by the transceiver unit 1302.

需要说明的是，本发明实施例中，确定单元1301、收发单元1302可以通过一个或多个处理器实现。上述各单元之间的交互流程具体可以参考图7所示方法实施例中的描述，这里不再赘述。It should be noted that, in the embodiment of the present invention, the determining unit 1301 and the transceiver unit 1302 may be implemented by one or more processors. For details of the interaction process between the foregoing units, reference may be made to the description in the method embodiment shown in FIG. 7, and details are not described herein again.

本发明实施例的功率控制装置，在主小区或者辅小区的参考信号的发射功率变化时，可以通过小区内下行物理信号确定主小区或辅小区的参考信号的发射功率，从而可以实现毫秒级快速功率控制并减少信令开销。The power control apparatus of the embodiment of the present invention can determine the transmit power of the reference signal of the primary cell or the secondary cell by using the downlink physical signal in the cell when the transmit power of the reference signal of the primary cell or the secondary cell changes, thereby achieving millisecond fast Power control and reduce signaling overhead.

图14为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在终端中，本发明实施例并不限于此。如图所示，该功率控制装置1400，包括：确定单元1401和收发单元1402。其中，FIG. 14 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided in the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device can be deployed in the terminal, and the embodiment of the present invention is not limited thereto. As shown, the power control device 1400 includes a determining unit 1401 and a transceiver unit 1402. among them,

收发单元1402，用于接收基站在第一时刻通过第二小区发送的发射功率变化信息；其中，发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和第二时刻。The transceiver unit 1402 is configured to receive, by the base station, the transmit power change information that is sent by the second cell by using the second cell, where the transmit power change information includes at least one of the following: a transmit power change mode and a second time of the reference signal of the first cell .

第一小区的参考信号的发射功率变化模式可以包括至少一个周期及该周期对应的功率信息。以图5为例，在前述方法实施例中已经进行了描述，此处不再赘述。The transmit power change pattern of the reference signal of the first cell may include at least one period and the week The corresponding power information. FIG. 5 is taken as an example, and has been described in the foregoing method embodiments, and details are not described herein again.

又例如，收发单元1402还可以通过第二小区的广播信道接收***消息，在***消息中包括第一小区的参考信号的初始功率信息，或者，第一小区的参考信号的初始功率信息和第一小区支持的参考信号的功率信息。其中，初始功率信息为初始功率等级或者初始功率值，第一小区支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者参考信号的至少一个功率值。从而周期对应的功率信息也可以包括该周期的参考信号的功率等级相对于初始功率等级的变化量，或者，该周期的参考信号的功率值相对于初始功率值的变化量。For another example, the transceiver unit 1402 may further receive, by using a broadcast channel of the second cell, a system message, where the system message includes initial power information of the reference signal of the first cell, or initial power information of the reference signal of the first cell, and the first The power information of the reference signal supported by the cell. The initial power information is an initial power level or an initial power value, and the power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal. Therefore, the power information corresponding to the period may also include the amount of change of the power level of the reference signal of the period relative to the initial power level, or the amount of change of the power value of the reference signal of the period with respect to the initial power value.

若第一小区与第二小区为不同小区，则发射功率变化信息中还需要包括第一小区的PCI指示发射功率变化信息适用于第一小区的参考信号。若第一小区与第二小区为同一小区，则发射功率变化信息中可以包括第一小区的PCI，也可以不包括。 If the first cell and the second cell are different cells, the transmit power change information further needs to include a reference signal that the PCI indication transmit power change information of the first cell is applicable to the first cell. If the first cell and the second cell are the same cell, the transmit power change information may include the PCI of the first cell, or may not be included.

由于发射功率是周期变化的，发射功率变化信息相对稳定，收发单元1402可以通过多种方式接收基站发送的发射功率变化信息。Since the transmit power is periodically changed, the transmit power change information is relatively stable, and the transceiver unit 1402 can receive the transmit power change information sent by the base station in multiple manners.

例如，收发单元1402可以接收基站在第一时刻通过第二小区的专用控制信道发送的发射功率变化信息；又例如，收发单元1402可以接收基站在第一时刻通过第二小区的广播信道发送的发射功率变化信息；又例如，收发单元1402可以接收基站在第一时刻通过第二小区的下行物理信道发送的发射功率变化信息，该下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被基站调度。这里功率RNTI是小区级RNTI，可以复用***中已经定义的小区级RNTI，也可以定义一个新的小区级RNTI用于发送功率信息，下行物理信道可以是物理下行控制信道PDCCH，也可以是物理混合自动重传指示信道PHIC或者，物理控制格式指示信道，还可以采用新的下行物理信道发送功率信息。For example, the transceiver unit 1402 may receive the transmit power change information sent by the base station through the dedicated control channel of the second cell at the first moment; for example, the transceiver unit 1402 may receive the transmit that is sent by the base station through the broadcast channel of the second cell at the first moment. For example, the transceiver unit 1402 can receive the transmit power change information sent by the base station through the downlink physical channel of the second cell at the first moment, the downlink physical channel is scrambled by the power radio network identifier RNTI, and the base station is per TTI. Scheduling. Here, the power RNTI is a cell-level RNTI, and the cell-level RNTI that has been defined in the system may be multiplexed, or a new cell-level RNTI may be defined for transmitting power information. The downlink physical channel may be a physical downlink control channel PDCCH, or may be physical. The hybrid automatic retransmission indication channel PHIC or the physical control format indication channel may also use the new downlink physical channel to transmit power information.

确定单元1401，用于根据收发单元1402所接收到的发射功率变化信息确定第一小区的参考信号在第二时刻之后的发射功率。The determining unit 1401 is configured to determine, according to the transmit power change information received by the transceiver unit 1402, the transmit power of the reference signal of the first cell after the second time.

收发单元1402在接收到发射功率变化信息后，确定单元1401可以根据发射功率变化模式确定第一小区的参考信号在第二时刻之后任一时刻的发射功率。例如，发射功率变化模式中包括周期1为2毫秒，周期2为3毫秒，周期1对应的发射功率为20dBm，周期2对应的发射功率为8dBm，则在生效时刻之后第8毫秒对应周期2，生效时刻之后第8毫秒的发射功率为8dBm。需要说明的是，上述均只是举例，本发明并不限于此。After receiving the transmit power change information, the determining unit 1401 may determine, according to the transmit power change mode, the transmit power of the reference signal of the first cell at any time after the second time. For example, the transmit power change mode includes a period 1 of 2 milliseconds, a period 2 of 3 milliseconds, a period 1 corresponding to a transmit power of 20 dBm, and a period 2 corresponding to a transmit power of 8 dBm, and the 8th millisecond corresponds to a period 2 after the effective time. The transmit power at 8 ms after the effective time is 8 dBm. It should be noted that the above are merely examples, and the present invention is not limited thereto.

需要说明的是，本发明实施例中，确定单元1401、收发单元1402可以通过一个或多个处理器实现。上述各单元之间的交互流程具体可以参考图8所示方法实施例中的描述，这里不再赘述。It should be noted that, in the embodiment of the present invention, the determining unit 1401 and the transceiver unit 1402 may be implemented by one or more processors. For details of the interaction process between the foregoing units, reference may be made to the description in the method embodiment shown in FIG. 8 , and details are not described herein again.

本发明实施例的功率控制装置，在获取到主小区或者辅小区发射功率变化信息后，可以在生效时刻后确定参考信号在任一时刻的发射功率而无需等待基站在每次发射功率改变时通知，从而可以实现快速功率控制并减少信令开销。After obtaining the transmission power change information of the primary cell or the secondary cell, the power control apparatus of the embodiment of the present invention may determine the transmit power of the reference signal at any time after the effective time without waiting for the power control device. The base station is notified each time the transmission power changes, so that fast power control can be achieved and signaling overhead can be reduced.

图15为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在基站等无线接入网控制设备中，此处为方便描述，以基站为例进行说明，本发明实施例并不限于此。如图所示，本实施例的网络设备1500包括：总线1501，与总线1501相连的处理器1502，与总线1501相连的存储器1503，以及与总线1501相连的收发器1504。其中，存储器1503中存储一组程序代码，存储器1503可以包括非易失性存储器(Non-volatile Memory)。处理器1502可以是一个中央处理器(Central Processing Unit，简称为CPU)，或者是特定集成电路ASIC(Application Specific Integrated Circuit，简称为ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路。处理器1502通过总线1501，调用存储器1503中存储的程序，以用于确定第一小区的参考信号在第二时刻的发射功率，并根据所确定的第一小区的参考信号在第二时刻的发射功率确定第一功率信息，并控制收发器1504在第一时刻通过第二小区向终端发送所确定的第一功率信息以使得终端根据第一功率信息确定第一小区的参考信号在第二时刻的发射功率，其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。这里k可以是基站和终端预先约定或者基站通知终端的参数。FIG. 15 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided in the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device may be deployed in a radio access network control device such as a base station. For convenience of description, the base station is taken as an example for description. The embodiment of the present invention is not limited thereto. As shown, the network device 1500 of the present embodiment includes a bus 1501, a processor 1502 coupled to the bus 1501, a memory 1503 coupled to the bus 1501, and a transceiver 1504 coupled to the bus 1501. The memory 1503 stores a set of program codes, and the memory 1503 may include a non-volatile memory. The processor 1502 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits. The processor 1502 calls, by using the bus 1501, a program stored in the memory 1503, for determining the transmit power of the reference signal of the first cell at the second time, and transmitting according to the determined reference signal of the first cell at the second time. The power determines the first power information, and controls the transceiver 1504 to send the determined first power information to the terminal by using the second cell at the first moment, so that the terminal determines, according to the first power information, the reference signal of the first cell at the second moment. Transmit power, wherein the second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0. Here k may be a parameter that the base station and the terminal pre-arrange or the base station notifies the terminal.

需要说明的是，处理器1502通过调用存储器1503中存储的程序代码具体实现的技术方案可以参见前述方法实施例，其实现原理和技术效果类似，详细可以参见上述实施例中的相关记载，在此不再赘述。It should be noted that the technical solution specifically implemented by the processor 1502 by calling the program code stored in the memory 1503 can be referred to the foregoing method embodiment. The implementation principle and technical effects are similar. For details, refer to the related description in the foregoing embodiment. No longer.

图16为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在基站等无线接入网控制设备中，此处为方便描述，以基站为例进行说明，本发明实施例并不限于此。如图所示，本实施例的网络设备1600包括：总线1601，与总线1601相连的处理器1602，与总线1601相连的存储器1603，以及与总线1601相连的收发器1604。其中，存储器1603中存储一组程序代码，存储器1603可以包括非易失性存储器(Non-volatile Memory)。处理器1502可以是一个中央处理器(Central Processing Unit，简称为CPU)，或者是特定集成电路ASIC(Application Specific Integrated Circuit，简称为ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路。处理器1602通过总线1601，调用存储器1603中存储的程序，以用于确定第一小区的参考信号在第二时刻的功率等级；控制收发器1604在第一时刻通过第一小区发送下行物理信号，以使得终端根据下行物理信号确定第一小区的参考信号在第二时刻的功率等级；其中，第二时刻晚于第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。FIG. 16 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided in the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device can It is deployed in a radio access network control device such as a base station. For convenience of description, a base station is taken as an example for description. The embodiment of the present invention is not limited thereto. As shown, the network device 1600 of the present embodiment includes a bus 1601, a processor 1602 connected to the bus 1601, a memory 1603 connected to the bus 1601, and a transceiver 1604 connected to the bus 1601. The memory 1603 stores a set of program codes, and the memory 1603 may include a non-volatile memory. The processor 1502 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits. The processor 1602, through the bus 1601, invokes a program stored in the memory 1603 for determining a power level of the reference signal of the first cell at the second time; the control transceiver 1604 transmits the downlink physical signal by using the first cell at the first time, The terminal determines, according to the downlink physical signal, the power level of the reference signal of the first cell at the second time; wherein, the second time is later than the first time k transmission time intervals TTI, where k is an integer greater than or equal to 0.

需要说明的是，处理器1602通过调用存储器1603中存储的程序代码具体实现的技术方案可以参见前述方法实施例，其实现原理和技术效果类似，详细可以参见上述实施例中的相关记载，在此不再赘述。It should be noted that the technical solution specifically implemented by the processor 1602 by calling the program code stored in the memory 1603 can be referred to the foregoing method embodiment, and the implementation principle and the technical effect are similar. For details, refer to the related description in the foregoing embodiment. No longer.

图17为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在基站等无线接入网控制设备中，此处为方便描述，以基站为例进行说明，本发明实施例并不限于此。如图所示，本实施例的网络设备1700包括：总线1701，与总线1701相连的处理器1702，与总线1701相连的存储器1703，以及与总线1701相连的收发器1704。其中，存储器1703中存储一组程序代码，存储器1703可以包括非易失性存储器(Non-volatile Memory)。处理器1702可以是一个中央处理器(Central Processing Unit，简称为CPU)，或者是特定集成电路ASIC(Application Specific Integrated Circuit，简称为ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路。处理器1702通过总线1701，调用存储器1703中存储的程序，以用于确定第一小区的参考信号在第二时刻的发射功率变化信息。其中，发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和第二时刻；控制收发器1704在第一时刻通过第二小区向终端发送所确定的发射功率变化信息。FIG. 17 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided in the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device may be deployed in a radio access network control device such as a base station. For convenience of description, the base station is taken as an example for description. The embodiment of the present invention is not limited thereto. As shown, the network device 1700 of the present embodiment includes a bus 1701, a processor 1702 connected to the bus 1701, a memory 1703 connected to the bus 1701, and a transceiver 1704 connected to the bus 1701. The memory 1703 stores a set of program codes, and the memory 1703 may include a non-volatile memory. The processor 1702 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC). Or one or more integrated circuits configured to implement embodiments of the present invention. The processor 1702, through the bus 1701, invokes a program stored in the memory 1703 for determining transmission power change information of the reference signal of the first cell at the second time. The transmit power change information includes at least one of the following: a transmit power change mode and a second time of the reference signal of the first cell; and the control transceiver 1704 sends the determined transmit power change information to the terminal by using the second cell at the first time. .

需要说明的是，处理器1702通过调用存储器1703中存储的程序代码具体实现的技术方案可以参见前述方法实施例，其实现原理和技术效果类似，详细可以参见上述实施例中的相关记载，在此不再赘述。It should be noted that the technical solution that is implemented by the processor 1702 by using the program code stored in the memory 1703 can be referred to the foregoing method embodiment. The implementation principle and technical effects are similar. For details, refer to the related description in the foregoing embodiment. No longer.

图18为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在终端中，本发明实施例并不限于此。如图所示，本实施例的网络设备1800包括：总线1801，与总线1801相连的处理器1802，与总线1801相连的存储器1803，以及与总线1801相连的收发器1804。其中，存储器1803中存储一组程序代码，存储器1803可以包括非易失性存储器(Non-volatile Memory)。处理器1802可以是一个中央处理器(Central Processing Unit，简称为CPU)，或者是特定集成电路ASIC(Application Specific Integrated Circuit，简称为ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路。处理器1802通过总线1801，调用存储器1803中存储的程序，以用于控制收发器1804接收基站在第一时刻通过第二小区发送的第一功率信息；根据所接收到的第一功率信息确定第一小区的参考信号在第二时刻的发射功率。FIG. 18 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided by the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device can be deployed in the terminal, and the embodiment of the present invention is not limited thereto. As shown, the network device 1800 of the present embodiment includes a bus 1801, a processor 1802 connected to the bus 1801, a memory 1803 connected to the bus 1801, and a transceiver 1804 connected to the bus 1801. The memory 1803 stores a set of program codes, and the memory 1803 may include a non-volatile memory. The processor 1802 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits. The processor 1802, by using the bus 1801, invokes a program stored in the memory 1803, and is configured to control the transceiver 1804 to receive first power information that is sent by the base station by using the second cell at the first time; and determine, according to the received first power information. The transmit power of the reference signal of a cell at the second moment.

需要说明的是，处理器1802通过调用存储器1803中存储的程序代码具体实现的技术方案可以参见前述方法实施例，其实现原理和技术效果类似，详细可以参见上述实施例中的相关记载，在此不再赘述。 It should be noted that the technical solution that is implemented by the processor 1802 by calling the program code stored in the memory 1803 can be referred to the foregoing method embodiment, and the implementation principle and the technical effect are similar. For details, refer to the related description in the foregoing embodiment. No longer.

图19为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在终端中，本发明实施例并不限于此。如图所示，本实施例的网络设备1900包括：总线1901，与总线1901相连的处理器1902，与总线1901相连的存储器1903，以及与总线1901相连的收发器1604。其中，存储器1903中存储一组程序代码，存储器1903可以包括非易失性存储器(Non-volatile Memory)。处理器1902可以是一个中央处理器(Central Processing Unit，简称为CPU)，或者是特定集成电路ASIC(Application Specific Integrated Circuit，简称为ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路。处理器1902通过总线1901，调用存储器1903中存储的程序，以用于控制收发器1904接收基站在第一时刻通过第一小区发送的下行物理信号；根据接收到的下行物理信号确定第一小区的参考信号在第二时刻的发射功率等级。FIG. 19 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided by the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device can be deployed in the terminal, and the embodiment of the present invention is not limited thereto. As shown, the network device 1900 of the present embodiment includes a bus 1901, a processor 1902 connected to the bus 1901, a memory 1903 connected to the bus 1901, and a transceiver 1604 connected to the bus 1901. The memory 1903 stores a set of program codes, and the memory 1903 may include a non-volatile memory. The processor 1902 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits. The processor 1902 calls the program stored in the memory 1903 via the bus 1901, and is configured to control the transceiver 1904 to receive the downlink physical signal sent by the base station by using the first cell at the first time; and determine the first cell according to the received downlink physical signal. The transmit power level of the reference signal at the second time.

需要说明的是，处理器1902通过调用存储器1903中存储的程序代码具体实现的技术方案可以参见前述方法实施例，其实现原理和技术效果类似，详细可以参见上述实施例中的相关记载，在此不再赘述。It should be noted that the technical solution specifically implemented by the processor 1902 by calling the program code stored in the memory 1903 can be referred to the foregoing method embodiment, and the implementation principle and the technical effect are similar. For details, refer to the related description in the foregoing embodiment. No longer.

图20为本发明另一实施例提供的功率控制装置的结构图，本发明实施例提供的功率控制装置可以实现本发明上述方法实施例。该功率控制装置可以部署在终端中，本发明实施例并不限于此。如图所示，本实施例的网络设备2000包括：总线2001，与总线2001相连的处理器2002，与总线2001相连的存储器2003，以及与总线2001相连的收发器2004。其中，存储器2003中存储一组程序代码，存储器2003可以包括非易失性存储器(Non-volatile Memory)。处理器2002可以是一个中央处理器(Central Processing Unit，简称为CPU)，或者是特定集成电路ASIC(Application Specific Integrated Circuit，简称为ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路。处理器2002通过总线2001，调用存储器2003中存储的程序，以用于控制收发器2004接收基站在第一时刻通过第二小区发送的发射功率变化信息；其中，发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和第二时刻；根据接收到的发射功率变化信息确定第一小区的参考信号在第二时刻之后的发射功率。FIG. 20 is a structural diagram of a power control apparatus according to another embodiment of the present invention. The power control apparatus provided by the embodiment of the present invention may implement the foregoing method embodiment of the present invention. The power control device can be deployed in the terminal, and the embodiment of the present invention is not limited thereto. As shown, the network device 2000 of the present embodiment includes a bus 2001, a processor 2002 connected to the bus 2001, a memory 2003 connected to the bus 2001, and a transceiver 2004 connected to the bus 2001. Wherein, a set of program codes is stored in the memory 2003, and the memory 2003 may include a non-volatile memory. The processor 2002 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Set Into a circuit. The processor 2002 calls the program stored in the memory 2003 through the bus 2001 for controlling the transceiver 2004 to receive the transmit power change information sent by the base station through the second cell at the first moment; wherein the transmit power change information includes at least one of the following a transmit power change mode and a second time of the reference signal of the first cell; determining, according to the received transmit power change information, a transmit power of the reference signal of the first cell after the second time.

需要说明的是，处理器2002通过调用存储器2003中存储的程序代码具体实现的技术方案可以参见前述方法实施例，其实现原理和技术效果类似，详细可以参见上述实施例中的相关记载，在此不再赘述。It should be noted that the technical solution specifically implemented by the processor 2002 by calling the program code stored in the memory 2003 can be referred to the foregoing method embodiment, and the implementation principle and the technical effect are similar. For details, refer to the related description in the foregoing embodiment. No longer.

图21为本发明另一实施例提供的功率控制***2100的组网示意图，如图21所示，该***2100包括：至少一个终端2101和基站2102，其中：FIG. 21 is a schematic diagram of networking of a power control system 2100 according to another embodiment of the present invention. As shown in FIG. 21, the system 2100 includes: at least one terminal 2101 and a base station 2102, where:

终端2101可以包括图12-14以及图18-20任一所示的功率控制装置，由于在图12-14以及图18-20所示的实施例中，已经进行了说明，其实现原理和技术效果类似，详细可以参见上述实施例中的相关记载，在此不再赘述。The terminal 2101 may include the power control device shown in any of FIGS. 12-14 and FIGS. 18-20, which has been described in the embodiment shown in FIGS. 12-14 and FIGS. 18-20, and its implementation principle and technology The effect is similar. For details, refer to related descriptions in the foregoing embodiments, and details are not described herein again.

基站2102可以包括图9-11以及图15-17任一所示的功率控制装置，由于在图9-11以及图15-17所示的实施例中，已经进行了说明，其实现原理和技术效果类似，详细可以参见上述实施例中的相关记载，在此不再赘述。The base station 2102 can include the power control device shown in any of FIGS. 9-11 and FIGS. 15-17. Since the embodiment shown in FIGS. 9-11 and FIGS. 15-17 has been described, its implementation principle and technology The effect is similar. For details, refer to related descriptions in the foregoing embodiments, and details are not described herein again.

在本申请所提供的几个实施例中，应该理解到，所揭露的***，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

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单元来实现本实施例方案的目的。The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place. Or it can be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

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以用硬件实现，或固件实现，或它们的组合方式来实现。当使用软件实现时，可以将上述功能存储在计算机可读介质中或作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是计算机能够存取的任何可用介质。以此为例但不限于：计算机可读介质可以包括RAM、ROM、EEPROM、CD-ROM或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。此外。任何连接可以适当的成为计算机可读介质。例如，如果软件是使用同轴电缆、光纤光缆、双绞线、数字用户线(DSL)或者诸如红外线、无线电和微波之类的无线技术从网站、服务器或者其他远程源传输的，那么同轴电缆、光纤光缆、双绞线、DSL或者诸如红外线、无线和微波之类的无线技术包括在所属介质的定影中。如本发明所使用的，盘(Disk)和碟(disc)包括压缩光碟(CD)、激光碟、光碟、数字通用光碟(DVD)、软盘和蓝光光碟，其中盘通常磁性的复制数据，而碟则用激光来光学的复制数据。上面的组合也应当包括在计算机可读介质的保护范围之内。Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented in hardware, firmware implementation, or a combination thereof. When implemented in software, the functions described above may be stored in or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. By way of example and not limitation, computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure. The desired program code and any other medium that can be accessed by the computer. Also. Any connection may suitably be a computer readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixing of the associated media. As used in the present invention, a disk and a disc include a compact disc (CD), a laser disc, a compact disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

总之，以上所述仅为本发明技术方案的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 In summary, the above description is only a preferred embodiment of the technical solution of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

一种功率控制的方法，其特征在于，所述方法包括：A method of power control, characterized in that the method comprises:

基站确定第一小区的参考信号在第二时刻的发射功率；Determining, by the base station, a transmit power of the reference signal of the first cell at the second moment;

所述基站根据所述第一小区的参考信号在所述第二时刻的发射功率确定第一功率信息；Determining, by the base station, first power information according to a transmit power of the reference signal of the first cell at the second moment;

所述基站在第一时刻通过第二小区的下行物理信道向终端发送所述第一功率信息，以使得所述终端根据所述第一功率信息确定所述第一小区的参考信号在所述第二时刻的发射功率，或者，所述基站在第一时刻通过媒体接入控制层MAC控制单元CE向终端发送所述第一功率信息，以使得所述终端根据所述第一功率信息确定所述第一小区的参考信号在所述第二时刻的发射功率；Sending, by the base station, the first power information to the terminal by using a downlink physical channel of the second cell, so that the terminal determines, according to the first power information, that the reference signal of the first cell is in the first The second power transmission, or the base station sends the first power information to the terminal through the medium access control layer MAC control unit CE at the first moment, so that the terminal determines the information according to the first power information. The transmit power of the reference signal of the first cell at the second moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被所述基站调度。The second time is later than the first time k transmission time intervals TTI, k is an integer greater than or equal to 0, the downlink physical channel is scrambled by the power wireless network identifier RNTI, and is per TTI Base station scheduling.
根据权利要求1所述的方法，其特征在于，所述方法之前，还包括：The method according to claim 1, wherein the method further comprises:

所述基站通过所述第二小区的广播信道发送***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；其中，所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。The base station sends a system message by using a broadcast channel of the second cell, where the system message carries initial power information of a reference signal of the first cell, or initial power information of a reference signal of the first cell The power information of the reference signal supported by the first cell; wherein the initial power information is an initial power level or an initial power value, and the power information of the supported reference signal of the first cell includes at least one power level of the reference signal Or, at least one power value of the reference signal.
根据权利要求2所述的方法，其特征在于，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述初始功率等级的变化量，或者，所述第一小区的参考信号的初始功率值相对于所述初始功率值的变化量。The method according to claim 2, wherein the first power information comprises at least one of: a power level of the reference signal of the first cell at the second moment, or the first cell The power value of the reference signal at the second time, or the amount of change of the power level of the reference signal of the first cell at the second time relative to the power level of the first time, or a power value of the reference signal of the first cell at the second moment relative to the The amount of change of the power value at the first time, or the amount of change of the power level of the reference signal of the first cell at the second time relative to the initial power level, or the reference signal of the first cell The amount of change in the initial power value relative to the initial power value.
根据权利要求1所述的方法，其特征在于，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量。The method according to claim 1, wherein the first power information comprises at least one of: a power level of the reference signal of the first cell at the second moment, or the first cell The power value of the reference signal at the second time, or the amount of change of the power level of the reference signal of the first cell at the second time relative to the power level of the first time, or The amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time.
根据权利要求1-4任一项所述的方法，其特征在于，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。The method according to any one of claims 1-4, wherein the downlink physical channel comprises: a physical downlink control channel PDCCH, or a physical hybrid automatic repeat indication channel PHICH, or a physical control format indication channel.
根据权利要求1-5任一项所述的方法，其特征在于，所述第一小区与所述第二小区为同一小区。The method according to any one of claims 1-5, wherein the first cell and the second cell are the same cell.
根据权利要求1-5任一项所述的方法，其特征在于，所述第一小区为辅小区，所述第二小区为主小区；所述第一功率信息还包括所述第一小区的小区标识。The method according to any one of claims 1-5, wherein the first cell is a secondary cell, and the second cell is a primary cell; the first power information further includes the first cell Cell identification.
一种功率控制的方法，其特征在于，所述方法包括：A method of power control, characterized in that the method comprises:

基站确定第一小区的参考信号在第二时刻的功率等级；Determining, by the base station, a power level of the reference signal of the first cell at the second moment;

所述基站在第一时刻通过所述第一小区发送下行物理信号，以使得终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级；The base station sends a downlink physical signal by using the first cell at the first time, so that the terminal determines, according to the downlink physical signal, a power level of the reference signal of the first cell at the second time;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。The second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0.
根据权利要求8所述的方法，其特征在于，所述第二小区的下行物理信号包括功率加扰参考信号； The method according to claim 8, wherein the downlink physical signal of the second cell comprises a power scrambled reference signal;

所述基站在第一时刻通过所述第一小区发送下行物理信号，包括：The sending, by the base station, the downlink physical signal by using the first cell at the first moment, including:

所述基站根据所述第一小区的参考信号在第二时刻的功率等级对小区专用参考信号序列加扰获得所述功率加扰参考信号；The base station scrambles the cell-specific reference signal sequence according to the power level of the reference signal of the first cell at the second time to obtain the power scrambled reference signal;

所述基站在所述第一时刻通过所述第一小区发送所述功率加扰参考信号，其中，所述第一时刻包括用于小区专用参考信号发送的时域位置。The base station sends the power scrambled reference signal by using the first cell at the first moment, where the first moment includes a time domain location for cell-specific reference signal transmission.
根据权利要求8所述的方法，其特征在于，所述第二小区的下行物理信号包括功率通知序列；The method according to claim 8, wherein the downlink physical signal of the second cell comprises a power notification sequence;

所述基站在第一时刻通过所述第一小区发送下行物理信号，包括：The sending, by the base station, the downlink physical signal by using the first cell at the first moment, including:

所述基站确定与所述第一小区的参考信号在第二时刻的功率等级对应的序列作为功率通知序列；Determining, by the base station, a sequence corresponding to a power level of the reference signal of the first cell at a second moment as a power notification sequence;

所述基站在第一时刻通过所述第一小区发送所述功率通知序列，其中，所述第一时刻包括用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，所述基站检测到免许可频谱的空闲信道的时域位置。The base station sends the power notification sequence by using the first cell at a first moment, where the first time includes a time domain location for primary synchronization signal transmission, or a time domain for secondary synchronization signal transmission Location, or the base station detects the time domain location of the idle channel of the unlicensed spectrum.
一种功率控制的方法，其特征在于，所述方法包括：A method of power control, characterized in that the method comprises:

基站确定第一小区的参考信号在第二时刻的发射功率变化信息；Determining, by the base station, transmit power change information of the reference signal of the first cell at the second moment;

所述基站在第一时刻通过第二小区向终端发送所述发射功率变化信息；Sending, by the second base station, the transmit power change information to the terminal by using the second cell at the first moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和所述第二时刻。The second time is later than the first time k transmission time intervals TTI, where k is an integer greater than or equal to 0, and the transmission power change information includes at least one of the following: a reference signal transmission of the first cell A power change mode and the second time.
根据权利要求11所述的方法，其特征在于，所述第一小区的参考信号的发射功率变化模式包括至少一个周期及该周期对应的功率信息。The method according to claim 11, wherein the transmission power variation pattern of the reference signal of the first cell comprises at least one period and power information corresponding to the period.
根据权利要求12所述的方法，其特征在于，所述方法之前，还包括：The method of claim 12, wherein the method further comprises:

所述基站通过所述第二小区的广播信道发送***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。Sending, by the base station, a system message by using a broadcast channel of the second cell, where the system message carries initial power information of a reference signal of the first cell, or a reference of the first cell The initial power information of the signal and the power information of the reference signal supported by the first cell; the initial power information is an initial power level or an initial power value, and the power information of the supported reference signal of the first cell includes a reference signal At least one power level, or at least one power value of the reference signal.
根据权利要求13所述的方法，其特征在于，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值，或者，所述周期的功率等级相对于所述周期的前一周期的功率等级的变化量，或者。所述周期的功率值相对于所述周期的前一周期的功率值的变化量，或者，所述周期的功率等级相对于所述初始功率等级的变化量，或者所述周期的功率值相对于所述初始功率值的变化量。The method according to claim 13, wherein the power information corresponding to the period comprises: a power level of the period, or a power value of the period, or a power level of the period relative to the The amount of change in the power level of the previous cycle of the cycle, or. The amount of change of the power value of the period relative to the power value of the previous period of the period, or the amount of change of the power level of the period relative to the initial power level, or the power value of the period relative to The amount of change in the initial power value.
根据权利要求12所述的方法，其特征在于，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值。The method according to claim 12, wherein the power information corresponding to the period comprises: a power level of the period, or a power value of the period.
根据权利要求11-15任一项所述的方法，其特征在于，所述基站在第一时刻通过第二小区向终端发送所述发射功率变化信息，包括：The method according to any one of claims 11 to 15, wherein the transmitting, by the base station, the transmit power change information to the terminal by using the second cell at the first moment, the method includes:

所述基站在第一时刻通过第二小区的专用控制信道向终端发送所述发射功率变化信息；或者，Transmitting, by the base station, the transmit power change information to the terminal by using a dedicated control channel of the second cell at a first moment; or

所述基站在第一时刻通过第二小区的广播信道向终端发送所述发射功率变化信息；或者，Transmitting, by the base station, the transmit power change information to the terminal by using a broadcast channel of the second cell at a first moment; or

所述基站在第一时刻通过第二小区的下行物理信道向终端所述发射功率变化信息，所述第二小区的下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被所述基站调度。Transmitting, by the base station, the transmit power change information to the terminal by using the downlink physical channel of the second cell at the first time, the downlink physical channel of the second cell is scrambled by the power radio network identifier RNTI, and each TTI is scheduled by the base station .
根据权利要求16所述的方法，其特征在于，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。The method according to claim 16, wherein the downlink physical channel comprises: a physical downlink control channel PDCCH, or a physical hybrid automatic repeat indication channel PHICH, or a physical control format indication channel.
根据权利要求11-17任一项所述的方法，其特征在于，所述第一小区与所述第二小区为同一小区。 The method according to any one of claims 11-17, wherein the first cell and the second cell are the same cell.
根据权利要求11-17任一项所述的方法，其特征在于，所述第一小区为辅小区，所述第二小区为主小区；所述发射功率变化信息还包括所述第一小区的小区标识。The method according to any one of claims 11-17, wherein the first cell is a secondary cell, and the second cell is a primary cell; the transmit power change information further includes the first cell Cell identification.
一种功率控制的方法，其特征在于，所述方法包括：A method of power control, characterized in that the method comprises:

终端接收基站在第一时刻通过第二小区的下行物理信道发送的第一功率信息，或者，终端接收基站在第一时刻通过媒体接入控制层MAC控制单元CE发送的第一功率信息；The terminal receives the first power information that is sent by the base station by using the downlink physical channel of the second cell at the first time, or the terminal receives the first power information that is sent by the base station by the medium access control layer MAC control unit CE at the first moment;

所述终端根据所述第一功率信息确定第一小区的参考信号在第二时刻的发射功率；Determining, by the terminal, the transmit power of the reference signal of the first cell at the second moment according to the first power information;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被所述基站调度。The second time is later than the first time k transmission time intervals TTI, k is an integer greater than or equal to 0, the downlink physical channel is scrambled by the power wireless network identifier RNTI, and is per TTI Base station scheduling.
根据权利要求20所述的方法，其特征在于，所述方法之前，还包括：The method of claim 20, wherein the method further comprises:

所述终端接收所述基站通过所述第二小区的广播信道发送的***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；其中，所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。Receiving, by the terminal, a system message that is sent by the base station by using a broadcast channel of the second cell, where the system message carries initial power information of a reference signal of the first cell, or a reference signal of the first cell The initial power information and the power information of the reference signal supported by the first cell; wherein the initial power information is an initial power level or an initial power value, and the power information of the supported reference signal of the first cell includes a reference signal At least one power level, or at least one power value of the reference signal.
根据权利要求21所述的方法，其特征在于，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述初始功率等级的变化量，或者，所述第一小区的参考信号的初始功率值相对于所述初始功率值的变化量。The method according to claim 21, wherein the first power information comprises at least one of: a power level of the reference signal of the first cell at the second moment, or the first cell The power value of the reference signal at the second time, or the amount of change of the power level of the reference signal of the first cell at the second time relative to the power level of the first time, or The amount of change of the power value of the reference signal of the first cell with respect to the power value of the first time, or the reference signal of the first cell is The amount of change of the power level at the second time relative to the initial power level, or the amount of change in the initial power value of the reference signal of the first cell relative to the initial power value.
根据权利要求20所述的方法，其特征在于，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量。The method according to claim 20, wherein the first power information comprises at least one of: a power level of the reference signal of the first cell at the second moment, or the first cell The power value of the reference signal at the second time, or the amount of change of the power level of the reference signal of the first cell at the second time relative to the power level of the first time, or The amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time.
根据权利要求20-23任一项所述的方法，其特征在于，所述下行物理信道包括：包括物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。The method according to any one of claims 20 to 23, wherein the downlink physical channel comprises: a physical downlink control channel PDCCH, or a physical hybrid automatic retransmission indication channel PHICH, or a physical control format indication channel .
根据权利要求20-24任一项所述的方法，其特征在于，所述第一小区与所述第二小区为同一小区。The method according to any one of claims 20-24, wherein the first cell and the second cell are the same cell.
根据权利要求20-24任一项所述的方法，其特征在于，所述第一小区为辅小区，所述第二小区为主小区；所述第一功率信息还包括所述第一小区的小区标识。The method according to any one of claims 20 to 24, wherein the first cell is a secondary cell, and the second cell is a primary cell; the first power information further includes the first cell Cell identification.
一种功率控制的方法，其特征在于，所述方法包括：A method of power control, characterized in that the method comprises:

终端接收基站在第一时刻通过第一小区发送的下行物理信号；Receiving, by the terminal, a downlink physical signal that is sent by the base station by using the first cell at the first moment;

所述终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级；Determining, by the terminal, a power level of the reference signal of the first cell at a second moment according to the downlink physical signal;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。The second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0.
根据权利要求27所述的方法，其特征在于，所述第二小区的下行物理信号包括功率加扰参考信号，所述第一时刻包括用于小区专用参考信号发送的时域位置；The method according to claim 27, wherein the downlink physical signal of the second cell comprises a power scrambled reference signal, and the first time comprises a time domain location for cell-specific reference signal transmission;

所述终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级，包括：Determining, by the terminal, that the reference signal of the first cell is in the second according to the downlink physical signal The power level of the moment, including:

所述终端通过盲检测确定所述功率加扰参考信号对应的小区专用参考信号序列；Determining, by the blind detection, a cell-specific reference signal sequence corresponding to the power scrambled reference signal;

所述终端根据所述小区专用参考信号序列对所述功率加扰参考信号解扰确定所述第一小区的参考信号在第二时刻的功率等级。The terminal descrambles the power scrambled reference signal according to the cell-specific reference signal sequence to determine a power level of the reference signal of the first cell at a second moment.
根据权利要求27所述的方法，其特征在于，所述第二小区的下行物理信号包括功率通知序列；所述第一时刻包括用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，所述基站检测到免许可频谱的空闲信道的时域位置；The method according to claim 27, wherein the downlink physical signal of the second cell comprises a power notification sequence; the first time instant comprises a time domain location for primary synchronization signal transmission, or is used for secondary synchronization a time domain location of the signal transmission, or a time domain location of the idle channel in which the base station detects the unlicensed spectrum;

所述终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级，包括：Determining, by the terminal, the power level of the reference signal of the first cell at the second moment according to the downlink physical signal, including:

所述终端根据所述功率通知序列确定所述第一小区的参考信号在第二时刻的功率等级。The terminal determines, according to the power notification sequence, a power level of the reference signal of the first cell at a second moment.
一种功率控制的方法，其特征在于，所述方法包括：A method of power control, characterized in that the method comprises:

终端接收基站在第一时刻通过第二小区发送的发射功率变化信息；Receiving, by the terminal, transmit power change information sent by the base station by using the second cell at the first moment;

所述终端根据所述发射功率变化信息确定第一小区的参考信号在第二时刻的发射功率；Determining, by the terminal, the transmit power of the reference signal of the first cell at the second moment according to the transmit power change information;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和所述第二时刻。The second time is later than the first time k transmission time intervals TTI, where k is an integer greater than or equal to 0, and the transmission power change information includes at least one of the following: a reference signal transmission of the first cell A power change mode and the second time.
根据权利要求30所述的方法，其特征在于，所述第一小区的参考信号的发射功率变化模式包括至少一个周期及该周期对应的功率信息。The method according to claim 30, wherein the transmission power variation pattern of the reference signal of the first cell comprises at least one period and power information corresponding to the period.
根据权利要求31所述的方法，其特征在于，所述方法之前，还包括：The method of claim 31, wherein the method further comprises:

所述终端接收所述基站通过所述第二小区的广播信道发送的***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。Receiving, by the terminal, a system message that is sent by the base station by using a broadcast channel of the second cell, where the system message carries initial power information of a reference signal of the first cell, or Initial power information of the reference signal of the first cell and power information of the reference signal supported by the first cell; the initial power information is an initial power level or an initial power value, and the power of the reference signal supported by the first cell The information includes at least one power level of the reference signal or at least one power value of the reference signal.
根据权利要求32所述的方法，其特征在于，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值，或者，所述周期的功率等级相对于所述周期的前一周期的功率等级的变化量，或者。所述周期的功率值相对于所述周期的前一周期的功率值的变化量，或者，所述周期的功率等级相对于所述初始功率等级的变化量，或者所述周期的功率值相对于所述初始功率值的变化量。The method according to claim 32, wherein the power information corresponding to the period comprises: a power level of the period, or a power value of the period, or a power level of the period relative to the The amount of change in the power level of the previous cycle of the cycle, or. The amount of change of the power value of the period relative to the power value of the previous period of the period, or the amount of change of the power level of the period relative to the initial power level, or the power value of the period relative to The amount of change in the initial power value.
根据权利要求31所述的方法，其特征在于，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值。The method according to claim 31, wherein the power information corresponding to the period comprises: a power level of the period, or a power value of the period.
根据权利要求30-34任一项所述的方法，其特征在于，所述终端接收基站在第一时刻通过第二小区发送的发射功率变化信息，包括：The method according to any one of claims 30 to 34, wherein the terminal receives the transmission power change information sent by the base station through the second cell at the first moment, and includes:

所述终端接收所述基站在第一时刻通过第二小区的专用控制信道发送的所述发射功率变化信息；或者，Receiving, by the terminal, the transmit power change information sent by the base station by using a dedicated control channel of the second cell at a first moment; or

所述终端接收所述基站在第一时刻通过第二小区的广播信道发送的所述发射功率变化信息；或者，Receiving, by the terminal, the transmit power change information that is sent by the base station by using a broadcast channel of the second cell at a first moment; or

所述终端接收所述基站在第一时刻通过第二小区的下行物理信道发送的所述发射功率变化信息，所述第二小区的下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被所述基站调度。Receiving, by the terminal, the transmit power change information sent by the base station by using a downlink physical channel of the second cell at a first moment, where the downlink physical channel of the second cell is scrambled by the power radio network identifier RNTI, and each TTI is The base station schedules.
根据权利要求35所述的方法，其特征在于，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。The method according to claim 35, wherein the downlink physical channel comprises: a physical downlink control channel PDCCH, or a physical hybrid automatic repeat indication channel PHICH, or a physical control format indication channel.
根据权利要求30-36任一项所述的方法，其特征在于，所述第一小区与所述第二小区为同一小区。 The method according to any one of claims 30 to 36, wherein the first cell and the second cell are the same cell.
根据权利要求30-36任一项所述的方法，其特征在于，所述第一小区为辅小区，所述第二小区为主小区；所述发射功率变化信息还包括所述第一小区的小区标识。The method according to any one of claims 30 to 36, wherein the first cell is a secondary cell, and the second cell is a primary cell; the transmit power change information further includes the first cell Cell identification.
一种功率控制的装置，其特征在于，所述装置包括：第一确定单元，第二确定单元和收发单元；其中，A device for power control, characterized in that the device comprises: a first determining unit, a second determining unit and a transceiver unit; wherein

所述第一确定单元用于确定第一小区的参考信号在第二时刻的发射功率；The first determining unit is configured to determine a transmit power of the reference signal of the first cell at the second moment;

所述第二确定单元用于根据所述第一确定单元确定的所述第一小区的参考信号在第二时刻的发射功率确定第一功率信息；The second determining unit is configured to determine, according to the transmit power of the reference signal of the first cell determined by the first determining unit, the first power information at a second time;

所述收发单元用于在第一时刻通过第二小区的下行物理信道向终端发送所述第一功率信息，以使得所述终端根据所述第一功率信息确定所述第一小区的参考信号在所述第二时刻的发射功率，或者，所述收发单元用于在第一时刻通过媒体接入控制层MAC控制单元CE向终端发送所述第一功率信息，以使得所述终端根据所述第一功率信息确定所述第一小区的参考信号在所述第二时刻的发射功率；The transceiver unit is configured to send the first power information to the terminal by using a downlink physical channel of the second cell at a first time, so that the terminal determines, according to the first power information, that the reference signal of the first cell is The transmitting power of the second time, or the transceiver unit is configured to send the first power information to the terminal by using a media access control layer MAC control unit CE at a first moment, so that the terminal is configured according to the Determining, by a power information, a transmit power of the reference signal of the first cell at the second moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被基站调度。The second time is later than the first time k transmission time intervals TTI, k is an integer greater than or equal to 0, the downlink physical channel is scrambled by the power wireless network identifier RNTI, and is used by the base station every TTI Scheduling.
根据权利要求39所述的装置，其特征在于，所述收发单元还用于通过所述第二小区的广播信道发送***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；其中，所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。The apparatus according to claim 39, wherein the transceiver unit is further configured to send a system message by using a broadcast channel of the second cell, where the system message carries an initial power of a reference signal of the first cell The information, or the initial power information of the reference signal of the first cell and the power information of the reference signal supported by the first cell; wherein the initial power information is an initial power level or an initial power value, the first The power information of the reference signal supported by the cell includes at least one power level of the reference signal or at least one power value of the reference signal.
根据权利要求40所述的装置，其特征在于，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述初始功率等级的变化量，或者，所述第一小区的参考信号的初始功率值相对于所述初始功率值的变化量。The apparatus according to claim 40, wherein the first power information comprises at least one of: a power level of the reference signal of the first cell at the second moment, or The power value of the reference signal of the first cell at the second moment, or the power level of the reference signal of the first cell at the second moment relative to the power level of the first moment The amount of change, or the amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time, or the reference signal of the first cell is in the The amount of change of the power level at the second time relative to the initial power level, or the amount of change in the initial power value of the reference signal of the first cell relative to the initial power value.
根据权利要求39所述的装置，其特征在于，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量。The apparatus according to claim 39, wherein the first power information comprises at least one of: a power level of the reference signal of the first cell at the second moment, or the first cell The power value of the reference signal at the second time, or the amount of change of the power level of the reference signal of the first cell at the second time relative to the power level of the first time, or The amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time.
根据权利要求39-42任一项所述的装置，其特征在于，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。The apparatus according to any one of claims 39-42, wherein the downlink physical channel comprises: a physical downlink control channel PDCCH, or a physical hybrid automatic repeat indication channel PHICH, or a physical control format indication channel.
根据权利要求39-43任一项所述的装置，其特征在于，所述第一小区与所述第二小区为同一小区。The apparatus according to any one of claims 39-43, wherein the first cell and the second cell are the same cell.
根据权利要求39-43任一项所述的装置，其特征在于，所述第一小区为辅小区，所述第二小区为主小区；所述第一功率信息还包括所述第一小区的小区标识。The apparatus according to any one of claims 39-43, wherein the first cell is a secondary cell, and the second cell is a primary cell; the first power information further includes the first cell Cell identification.
根据权利要求44-45任一项所述的装置，其特征在于，所述装置部署在基站。Apparatus according to any of claims 44-45, wherein said apparatus is deployed at a base station.
一种功率控制的装置，其特征在于，所述装置包括：确定单元和收发单元；其中，A device for power control, characterized in that the device comprises: a determining unit and a transceiver unit; wherein

所述确定单元用于确定第一小区的参考信号在第二时刻的功率等级；The determining unit is configured to determine a power level of the reference signal of the first cell at the second moment;

所述收发单元用于在第一时刻通过所述第一小区发送下行物理信号，以使得终端根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级；The transceiver unit is configured to send, by using the first cell, a downlink physical signal at a first moment, to And causing, by the terminal, to determine, according to the downlink physical signal, a power level of the reference signal of the first cell at a second moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。The second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0.
根据权利要求47所述的装置，其特征在于，所述第二小区的下行物理信号包括功率加扰参考信号；The apparatus according to claim 47, wherein the downlink physical signal of the second cell comprises a power scrambled reference signal;

所述收发单元在第一时刻通过所述第一小区发送下行物理信号，包括：Transmitting, by the transceiver unit, the downlink physical signal by using the first cell at the first moment, including:

所述收发单元根据所述第一小区的参考信号在第二时刻的功率等级对小区专用参考信号序列加扰获得所述功率加扰参考信号；The transceiver unit scrambles the cell-specific reference signal sequence according to the power level of the reference signal of the first cell at the second time to obtain the power scrambled reference signal;

所述收发单元在所述第一时刻通过所述第一小区发送所述功率加扰参考信号，其中，所述第一时刻包括用于小区专用参考信号发送的时域位置。The transceiver unit transmits the power scrambled reference signal by using the first cell at the first moment, where the first moment includes a time domain location for cell-specific reference signal transmission.
根据权利要求47所述的装置，其特征在于，所述第二小区的下行物理信号包括功率通知序列；The apparatus according to claim 47, wherein the downlink physical signal of the second cell comprises a power notification sequence;

所述收发单元在第一时刻通过所述第一小区发送下行物理信号，包括：Transmitting, by the transceiver unit, the downlink physical signal by using the first cell at the first moment, including:

所述收发单元确定与所述第一小区的参考信号在第二时刻的功率等级对应的序列作为功率通知序列；The transceiver unit determines a sequence corresponding to a power level of the reference signal of the first cell at a second moment as a power notification sequence;

所述收发单元在第一时刻通过所述第一小区发送所述功率通知序列，其中，所述第一时刻包括用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，检测到免许可频谱的空闲信道的时域位置。Transmitting, by the transceiver unit, the power notification sequence by using the first cell at a first moment, where the first time includes a time domain location for primary synchronization signal transmission, or is used for secondary synchronization signal transmission The domain location, or the time domain location of the idle channel in which the unlicensed spectrum is detected.
根据权利要求47-49任一项所述的装置，其特征在于，所述装置部署在基站。Apparatus according to any of claims 47-49, wherein said apparatus is deployed at a base station.
一种功率控制的装置，其特征在于，所述装置包括：确定单元和收发单元；其中，A device for power control, characterized in that the device comprises: a determining unit and a transceiver unit; wherein

所述确定单元用于确定第一小区的参考信号在第二时刻的发射功率变化信息；The determining unit is configured to determine transmit power change information of the reference signal of the first cell at the second moment;

所述收发单元用于在第一时刻通过第二小区向终端发送所述发射功率变化信息；The transceiver unit is configured to send the transmit power to the terminal by using the second cell at the first moment. Change information

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和所述第二时刻。The second time is later than the first time k transmission time intervals TTI, where k is an integer greater than or equal to 0, and the transmission power change information includes at least one of the following: a reference signal transmission of the first cell A power change mode and the second time.
根据权利要求51所述的装置，其特征在于，所述第一小区的参考信号的发射功率变化模式包括至少一个周期及该周期对应的功率信息。The apparatus according to claim 51, wherein the transmission power variation pattern of the reference signal of the first cell comprises at least one period and power information corresponding to the period.
根据权利要求52所述的装置，其特征在于，所述收发单元还用于通过所述第二小区的广播信道发送***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。The device according to claim 52, wherein the transceiver unit is further configured to send a system message by using a broadcast channel of the second cell, where the system message carries an initial power of a reference signal of the first cell Information, or initial power information of the reference signal of the first cell and power information of the reference signal supported by the first cell; the initial power information is an initial power level or an initial power value, where the first cell The power information of the supported reference signal includes at least one power level of the reference signal or at least one power value of the reference signal.
根据权利要求53所述的装置，其特征在于，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值，或者，所述周期的功率等级相对于所述周期的前一周期的功率等级的变化量，或者。所述周期的功率值相对于所述周期的前一周期的功率值的变化量，或者，所述周期的功率等级相对于所述初始功率等级的变化量，或者所述周期的功率值相对于所述初始功率值的变化量。The device according to claim 53, wherein the power information corresponding to the period comprises: a power level of the period, or a power value of the period, or a power level of the period relative to the The amount of change in the power level of the previous cycle of the cycle, or. The amount of change of the power value of the period relative to the power value of the previous period of the period, or the amount of change of the power level of the period relative to the initial power level, or the power value of the period relative to The amount of change in the initial power value.
根据权利要求52所述的装置，其特征在于，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值。The device according to claim 52, wherein the power information corresponding to the period comprises: a power level of the period, or a power value of the period.
根据权利要求51-55任一项所述的装置，其特征在于，所述收发单元用于在第一时刻通过第二小区向终端发送所述发射功率变化信息，包括：The device according to any one of claims 51-55, wherein the transceiver unit is configured to send the transmit power change information to the terminal by using the second cell at the first moment, including:

所述收发单元在第一时刻通过第二小区的专用控制信道向终端发送所述发射功率变化信息；或者，Transmitting, by the transceiver unit, the transmit power change information to the terminal by using a dedicated control channel of the second cell at a first moment; or

所述收发单元在第一时刻通过第二小区的广播信道向终端发送所述发射功率变化信息；或者， Transmitting, by the transceiver unit, the transmit power change information to the terminal by using a broadcast channel of the second cell at a first moment; or

所述收发单元在第一时刻通过第二小区的下行物理信道向终端所述发射功率变化信息，所述第二小区的下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被基站调度。The transceiver unit transmits the power change information to the terminal through the downlink physical channel of the second cell at the first moment, the downlink physical channel of the second cell is scrambled by the power radio network identifier RNTI, and each TTI is scheduled by the base station.
根据权利要求56所述的装置，其特征在于，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。The apparatus according to claim 56, wherein the downlink physical channel comprises: a physical downlink control channel PDCCH, or a physical hybrid automatic repeat indication channel PHICH, or a physical control format indication channel.
根据权利要求51-57任一项所述的装置，其特征在于，所述第一小区与所述第二小区为同一小区。The apparatus according to any one of claims 51-57, wherein the first cell and the second cell are the same cell.
根据权利要求51-57任一项所述的装置，其特征在于，所述第一小区为辅小区，所述第二小区为主小区；所述发射功率变化信息还包括所述第一小区的小区标识。The apparatus according to any one of claims 51 to 57, wherein the first cell is a secondary cell, and the second cell is a primary cell; and the transmit power change information further includes the first cell Cell identification.
根据权利要求51-59任一项所述的装置，其特征在于，所述装置部署在基站。Apparatus according to any of claims 51-59, wherein said apparatus is deployed at a base station.
一种功率控制的装置，其特征在于，所述装置包括：确定单元和收发单元；其中，A device for power control, characterized in that the device comprises: a determining unit and a transceiver unit; wherein

所述收发单元用于接收基站在第一时刻通过第二小区的下行物理信道发送的第一功率信息，或者，所述收发单元接收基站在第一时刻通过媒体接入控制层MAC控制单元CE发送的第一功率信息；The transceiver unit is configured to receive first power information that is sent by the base station by using a downlink physical channel of the second cell at the first time, or the receiving and receiving unit receives, by the base station, the medium access control layer MAC control unit CE First power information;

所述确定单元用于根据所述第一功率信息确定第一小区的参考信号在第二时刻的发射功率；The determining unit is configured to determine, according to the first power information, a transmit power of a reference signal of the first cell at a second moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述下行物理信道被功率无线网络标识RNTI加扰，并且在每TTI被所述基站调度。The second time is later than the first time k transmission time intervals TTI, k is an integer greater than or equal to 0, the downlink physical channel is scrambled by the power wireless network identifier RNTI, and is per TTI Base station scheduling.
根据权利要求61所述的装置，其特征在于，所述收发单元还用于接收所述基站通过所述第二小区的广播信道发送的***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；其中，所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。The device according to claim 61, wherein the transceiver unit is further configured to receive a system message sent by the base station by using a broadcast channel of the second cell, where the system message carries the first cell Initial power information of the reference signal, or the reference of the first cell The initial power information of the reference signal and the power information of the reference signal supported by the first cell; wherein the initial power information is an initial power level or an initial power value, and the power information of the supported reference signal of the first cell includes At least one power level of the reference signal, or at least one power value of the reference signal.
根据权利要求62所述的装置，其特征在于，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述初始功率等级的变化量，或者，所述第一小区的参考信号的初始功率值相对于所述初始功率值的变化量。The apparatus according to claim 62, wherein the first power information comprises at least one of: a power level of the reference signal of the first cell at the second moment, or the first cell The power value of the reference signal at the second time, or the amount of change of the power level of the reference signal of the first cell at the second time relative to the power level of the first time, or The amount of change of the power value of the reference signal of the first cell with respect to the power value of the first time, or the power level of the reference signal of the first cell at the second time is relative to The amount of change of the initial power level, or the amount of change of the initial power value of the reference signal of the first cell relative to the initial power value.
根据权利要求61所述的装置，其特征在于，所述第一功率信息包括以下至少一种：所述第一小区的参考信号在所述第二时刻的功率等级，或者，所述第一小区的参考信号在所述第二时刻的功率值，或者，所述第一小区的参考信号在所述第二时刻的功率等级相对于所述第一时刻的功率等级的变化量，或者，所述第一小区的参考信号在所述第二时刻的功率值相对于所述第一时刻的功率值的变化量。The apparatus according to claim 61, wherein the first power information comprises at least one of: a power level of the reference signal of the first cell at the second moment, or the first cell The power value of the reference signal at the second time, or the amount of change of the power level of the reference signal of the first cell at the second time relative to the power level of the first time, or The amount of change of the power value of the reference signal of the first cell at the second time relative to the power value of the first time.
根据权利要求61-64任一项所述的装置，其特征在于，所述下行物理信道包括：包括物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。The apparatus according to any one of claims 61 to 64, wherein the downlink physical channel comprises: a physical downlink control channel PDCCH, or a physical hybrid automatic retransmission indication channel PHICH, or a physical control format indication channel .
根据权利要求61-65任一项所述的装置，其特征在于，所述第一小区与所述第二小区为同一小区。The apparatus according to any one of claims 61 to 65, wherein the first cell and the second cell are the same cell.
根据权利要求61-65任一项所述的装置，其特征在于，所述第一小区为辅小区，所述第二小区为主小区；所述第一功率信息还包括所述第一小区的小区标识。 The apparatus according to any one of claims 61 to 65, wherein the first cell is a secondary cell, and the second cell is a primary cell; the first power information further includes the first cell Cell identification.
根据权利要求61-67任一项所述的装置，其特征在于，所述装置部署在终端。Apparatus according to any of claims 61-67, wherein said apparatus is deployed at a terminal.
一种功率控制的装置，其特征在于，所述装置包括：确定单元和收发单元；其中，A device for power control, characterized in that the device comprises: a determining unit and a transceiver unit; wherein

所述收发单元用于接收基站在第一时刻通过第一小区发送的下行物理信号；The transceiver unit is configured to receive a downlink physical signal that is sent by the base station by using the first cell at the first moment;

所述确定单元用于根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级；The determining unit is configured to determine, according to the downlink physical signal, a power level of the reference signal of the first cell at a second moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数。The second time is later than the first time k transmission time intervals TTI, and k is an integer greater than or equal to 0.
根据权利要求69所述的装置，其特征在于，所述第二小区的下行物理信号包括功率加扰参考信号，所述第一时刻包括用于小区专用参考信号发送的时域位置；The apparatus according to claim 69, wherein the downlink physical signal of the second cell comprises a power scrambled reference signal, and the first time comprises a time domain location for cell-specific reference signal transmission;

所述确定单元用于根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级，包括：The determining unit is configured to determine, according to the downlink physical signal, a power level of the reference signal of the first cell at a second moment, including:

所述确定单元通过盲检测确定所述功率加扰参考信号对应的小区专用参考信号序列；Determining, by the blind detection, a cell-specific reference signal sequence corresponding to the power scrambled reference signal;

所述确定单元根据所述小区专用参考信号序列对所述功率加扰参考信号解扰确定所述第一小区的参考信号在第二时刻的功率等级。The determining unit descrambles the power scrambled reference signal according to the cell-specific reference signal sequence to determine a power level of the reference signal of the first cell at a second moment.
根据权利要求69所述的装置，其特征在于，所述第二小区的下行物理信号包括功率通知序列；所述第一时刻包括用于主同步信号发送的时域位置，或者，用于辅同步信号发送的时域位置，或者，所述基站检测到免许可频谱的空闲信道的时域位置；The apparatus according to claim 69, wherein the downlink physical signal of the second cell comprises a power notification sequence; the first time comprises a time domain location for primary synchronization signal transmission, or is used for secondary synchronization a time domain location of the signal transmission, or a time domain location of the idle channel in which the base station detects the unlicensed spectrum;

所述确定单元用于根据所述下行物理信号确定所述第一小区的参考信号在第二时刻的功率等级，包括：The determining unit is configured to determine, according to the downlink physical signal, a power level of the reference signal of the first cell at a second moment, including:

所述确定单元根据所述功率通知序列确定所述第一小区的参考信号在第二时刻的功率等级。Determining, by the determining unit, determining, according to the power notification sequence, a reference signal of the first cell The power level at the second moment.
根据权利要求69-71任一项所述的装置，其特征在于，所述装置部署在终端。Apparatus according to any of claims 69-71, wherein said apparatus is deployed at a terminal.
一种功率控制的装置，其特征在于，所述装置包括：确定单元和收发单元；其中，A device for power control, characterized in that the device comprises: a determining unit and a transceiver unit; wherein

所述收发单元用于接收基站在第一时刻通过第二小区发送的发射功率变化信息；The transceiver unit is configured to receive transmit power change information that is sent by the base station by using the second cell at the first moment;

所述确定单元用于根据所述发射功率变化信息确定第一小区的参考信号在第二时刻的发射功率；The determining unit is configured to determine, according to the transmit power change information, a transmit power of a reference signal of the first cell at a second moment;

其中，所述第二时刻晚于所述第一时刻k个传输时间间隔TTI，k为大于或者等于0的整数，所述发射功率变化信息至少包括以下一种，第一小区的参考信号的发射功率变化模式和所述第二时刻。The second time is later than the first time k transmission time intervals TTI, where k is an integer greater than or equal to 0, and the transmission power change information includes at least one of the following: a reference signal transmission of the first cell A power change mode and the second time.
根据权利要求73所述的装置，其特征在于，所述第一小区的参考信号的发射功率变化模式包括至少一个周期及该周期对应的功率信息。The apparatus according to claim 73, wherein the transmission power variation pattern of the reference signal of the first cell comprises at least one period and power information corresponding to the period.
根据权利要求74所述的装置，其特征在于，所述收发单元还用于接收所述基站通过所述第二小区的广播信道发送的***消息，所述***消息中携带所述第一小区的参考信号的初始功率信息，或者，所述第一小区的参考信号的初始功率信息和所述第一小区支持的参考信号的功率信息；所述初始功率信息为初始功率等级或者初始功率值，所述第一小区的支持的参考信号的功率信息包括参考信号的至少一个功率等级，或者，参考信号的至少一个功率值。The device according to claim 74, wherein the transceiver unit is further configured to receive a system message sent by the base station by using a broadcast channel of the second cell, where the system message carries the first cell Initial power information of the reference signal, or initial power information of the reference signal of the first cell and power information of the reference signal supported by the first cell; the initial power information is an initial power level or an initial power value, The power information of the reference signal supported by the first cell includes at least one power level of the reference signal or at least one power value of the reference signal.
根据权利要求75所述的装置，其特征在于，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值，或者，所述周期的功率等级相对于所述周期的前一周期的功率等级的变化量，或者。所述周期的功率值相对于所述周期的前一周期的功率值的变化量，或者，所述周期的功率等级相对于所述初始功率等级的变化量，或者所述周期的功率值相对于所述初始功率值的变化量。The device according to claim 75, wherein the power information corresponding to the period comprises: a power level of the period, or a power value of the period, or a power level of the period relative to the The amount of change in the power level of the previous cycle of the cycle, or. The amount of change in the power value of the period relative to the power value of the previous period of the period, or the week The amount of change in the power level relative to the initial power level, or the amount of change in the power value of the period relative to the initial power value.
根据权利要求74所述的装置，其特征在于，所述周期对应的功率信息包括：所述周期的功率等级，或者，所述周期的功率值。The apparatus according to claim 74, wherein the power information corresponding to the period comprises: a power level of the period, or a power value of the period.
根据权利要求73-77任一项所述的装置，其特征在于，所述收发单元用于接收基站在第一时刻通过第二小区发送的发射功率变化信息，包括：The device according to any one of claims 73-77, wherein the transceiver unit is configured to receive, by the base station, the transmit power change information sent by the second cell at the first moment, including:

所述收发单元用于接收所述基站在第一时刻通过第二小区的专用控制信道发送的所述发射功率变化信息；或者，The transceiver unit is configured to receive the transmit power change information that is sent by the base station by using a dedicated control channel of the second cell at a first moment; or

所述收发单元用于接收所述基站在第一时刻通过第二小区的广播信道发送的所述发射功率变化信息；或者，The transceiver unit is configured to receive the transmit power change information that is sent by the base station by using a broadcast channel of the second cell at a first moment; or

所述收发单元用于接收所述基站在第一时刻通过第二小区的下行物理信道发送的所述发射功率变化信息，所述第二小区的下行物理信道被功率无线网络标识RNTI加扰，并且每TTI被所述基站调度。The transceiver unit is configured to receive the transmit power change information that is sent by the base station by using a downlink physical channel of the second cell at a first moment, where the downlink physical channel of the second cell is scrambled by the power radio network identifier RNTI, and Each TTI is scheduled by the base station.
根据权利要求78所述的装置，其特征在于，所述下行物理信道包括：物理下行控制信道PDCCH，或者，物理混合自动重传指示信道PHICH，或者，物理控制格式指示信道。The apparatus according to claim 78, wherein the downlink physical channel comprises: a physical downlink control channel PDCCH, or a physical hybrid automatic repeat indication channel PHICH, or a physical control format indication channel.
根据权利要求73-79任一项所述的装置，其特征在于，所述第一小区与所述第二小区为同一小区。The apparatus according to any one of claims 73-79, wherein the first cell and the second cell are the same cell.
根据权利要求73-79任一项所述的装置，其特征在于，所述第一小区为辅小区，所述第二小区为主小区；所述发射功率变化信息还包括所述第一小区的小区标识。The apparatus according to any one of claims 73-79, wherein the first cell is a secondary cell, and the second cell is a primary cell; the transmit power change information further includes the first cell Cell identification.
根据权利要求80-81任一项所述的装置，其特征在于，所述装置部署在终端。Apparatus according to any of claims 80-81, wherein said apparatus is deployed at a terminal.
一种功率控制的***，其特征在于，所述***包括终端和基站；其中，所述终端包括如权利要求68，72或者82任一项所述的装置，所述基站包括如权利要求46，50或者60任一项所述的装置。 A system for power control, characterized in that the system comprises a terminal and a base station; wherein the terminal comprises the device according to any one of claims 68, 72 or 82, the base station comprising, as claimed in claim 46, The device of any of 50 or 60.