WO2016054819A1

WO2016054819A1 - Method and device for transmitting signals, and system

Info

Publication number: WO2016054819A1
Application number: PCT/CN2014/088354
Authority: WO
Inventors: 张雷鸣; 刘鹍鹏; 刘江华
Original assignee: 华为技术有限公司
Priority date: 2014-10-11
Filing date: 2014-10-11
Publication date: 2016-04-14
Also published as: CN105900493A; CN105900493B

Abstract

Provided are a method and device for transmitting signals, the method comprising: a base station determines the directions of beams and the transmission powers of the beams; according to the transmission powers of the beams, the base station transmits signals on the directions of the beams. The beams at least comprise a first beam and a second beam, the transmission power of the first beam is less than the transmission power of the second beam, the direction of the first beam points to an overlapping coverage area of different cells, and the direction of the second beam does not point to the overlapping coverage area of different cells. According to the present invention, the transmission power of the beam pointing to the overlapping coverage area of different cells is less than the transmission power of the beam not pointing to the overlapping coverage area of different cells, and interference power within the overlapping coverage area of different cells is thereby reduced.

Description

一种发射信号的方法、装置和***Method, device and system for transmitting signals

技术领域Technical field

本发明实施例涉及通信技术，特别是涉及波束赋形技术领域。Embodiments of the present invention relate to communication technologies, and in particular, to the field of beamforming technologies.

背景技术Background technique

波束赋形(Beamforming)又叫空域滤波，是一种使用传感器阵列定向发送和接收信号的信号处理技术。波束赋形技术通过调整相位阵列的基本单元的参数，使得某些角度的信号获得相长干涉，而另一些角度的信号获得相消干涉。波束赋形既可以用于信号发射端，又可以用于信号接收端。Beamforming, also known as spatial filtering, is a signal processing technique that uses a sensor array to direct transmit and receive signals. The beamforming technique adjusts the parameters of the basic unit of the phase array so that signals of certain angles obtain constructive interference, while signals of other angles acquire destructive interference. Beamforming can be used both for the signal transmitter and for the signal receiver.

在移动通信领域，波束赋形技术已经随着多输入多输出(Multiple Input Multiple Output，MIMO)***的推广而得到广泛应用。通过波束赋形技术，MIMO***可以获得分集增益和阵列增益，这两种增益被统称为波束赋形增益。In the field of mobile communications, beamforming technology has been widely used with the popularization of Multiple Input Multiple Output (MIMO) systems. Through the beamforming technique, the MIMO system can obtain diversity gain and array gain, which are collectively referred to as beamforming gain.

为了获得更大的波束赋形增益，一方面天线阵列中的天线数量增加，这使得形成更窄波束成为可能；另一方面天线阵列的分布形态也由传统的一维线阵向二维平面阵和三维立体阵列演进，这使得波束赋形能够不仅在一个方向或者维度上进行调整，也可以从多个方向或者维度上进行调整。In order to obtain a larger beamforming gain, on the one hand, the number of antennas in the antenna array increases, which makes it possible to form a narrower beam; on the other hand, the distribution pattern of the antenna array is also from a conventional one-dimensional line array to a two-dimensional plane array. And three-dimensional array evolution, which enables beamforming to be adjusted not only in one direction or dimension, but also in multiple directions or dimensions.

在现实的应用场景中，移动通信网络中的相邻小区或者扇区的覆盖范围之间可能存在重叠覆盖的区域，在这些区域中，用户设备接收到的不同小区或者扇区的信号互相成为干扰。以长期演进计划(Long Term Evolution，LTE)***为例，LTE为典型的干扰受限***，对于LTE***中的用户设备UE而言，其信干噪比(Signal to Interference plus Noise Ratio，SINR)由信号功率和干扰功率主导。当LTE***的UE处在相邻小区或者扇区的重叠覆盖区域时，参与形成重叠覆盖的信号之间互为干扰，UE无论选择哪个小区或者扇区，另一小区或者扇区的信号都会对UE的正常通信产生干扰，降低了通信的质量。In a real application scenario, there may be overlapping coverage areas between coverage areas of neighboring cells or sectors in a mobile communication network, in which signals received by different devices or sectors received by user equipment interfere with each other. . Taking the Long Term Evolution (LTE) system as an example, LTE is a typical interference-limited system. For user equipment UEs in LTE systems, the Signal to Interference plus Noise Ratio (SINR) is used. It is dominated by signal power and interference power. When the UE of the LTE system is in the overlapping coverage area of the neighboring cell or the sector, the signals participating in the formation of the overlapping coverage are mutually interfered, and the signal of the other cell or the sector is matched regardless of which cell or sector is selected by the UE. The normal communication of the UE generates interference, which reduces the quality of the communication.

综而言之，现有技术的问题在于，小区或者扇区重叠覆盖范围内存在干扰。In summary, the problem with the prior art is that the cell or sector overlap coverage is dry. Disturb.

发明内容Summary of the invention

本本发明实施例提出了一种发射信号的方法、装置和***，用于解决现有技术中小区或者扇区重叠覆盖范围内存在干扰的问题。The embodiment of the invention provides a method, a device and a system for transmitting a signal, which are used to solve the problem of interference in the overlapping coverage of a cell or a sector in the prior art.

第一方面，本发明实施例提出了一种发送信号的方法，所述方法包括：In a first aspect, an embodiment of the present invention provides a method for transmitting a signal, where the method includes:

基站确定波束的方向和所述波束的发射功率；The base station determines the direction of the beam and the transmit power of the beam;

所述基站根据所述波束的发射功率，在所述波束的方向上发射信号；Transmitting, by the base station, a signal in a direction of the beam according to a transmit power of the beam;

其中，所述波束至少包括第一波束和第二波束，其中所述第一波束的发射功率小于所述第二波束的发射功率；The beam includes at least a first beam and a second beam, where a transmit power of the first beam is smaller than a transmit power of the second beam;

其中，所述第一波束的方向指向不同小区重叠覆盖的区域；The direction of the first beam points to an area covered by overlapping of different cells;

其中，所述第二波束的方向指向不同小区重叠覆盖的区域以外的区域。The direction of the second beam is directed to an area other than the area covered by the overlapping of different cells.

第二方面，本发明实施例提出了一种发射信号的装置，所述装置包括处理器和收发器，其中：In a second aspect, an embodiment of the present invention provides an apparatus for transmitting a signal, the apparatus comprising a processor and a transceiver, wherein:

所述处理器用于确定波束的方向和所述波束的发射功率；The processor is configured to determine a direction of a beam and a transmit power of the beam;

所述收发器用于根据所述波束的发射功率，在所述波束的方向上发射信号；The transceiver is configured to transmit a signal in a direction of the beam according to a transmit power of the beam;

其中，所述第二波束的方向不指向不同小区重叠覆盖的区域。The direction of the second beam does not point to an area overlapped by different cells.

第三方面，本发明实施例提出了一种发射信号的装置，所述装置包括确定模块，用于确定波束的方向和波束的发射功率；In a third aspect, an embodiment of the present invention provides an apparatus for transmitting a signal, where the apparatus includes a determining module for determining a direction of a beam and a transmit power of a beam;

发射模块，用于根据所述波束的反射功率，在所述波束的方向上发射信号； a transmitting module, configured to transmit a signal in a direction of the beam according to a reflected power of the beam;

根据本发明实施例的方案，基站确定波束的方向和所述波束的发射功率，所述波束至少包括第一波束和第二波束，所述第一波束的发射功率小于所述第二波束的发射功率，并且所述第一波束的方向不同小区重叠覆盖的区域以外的区域，如此指向不同小区重叠覆盖的区域的波束的发射功率要小于未指向不同小区重叠覆盖区域的波束的发射功率，因此在重叠覆盖的区域的第一波束对在该区域的其他波束的干扰小，从而降低了对所述不同小区重叠覆盖区域内的干扰功率。According to the solution of the embodiment of the present invention, the base station determines the direction of the beam and the transmit power of the beam, the beam includes at least a first beam and a second beam, and the transmit power of the first beam is smaller than the transmit of the second beam Power, and the direction of the first beam is different from the area covered by the cell overlap coverage, so that the transmit power of the beam pointing to the overlapping coverage area of the different cell is smaller than the transmit power of the beam not pointing to the overlapping coverage area of the different cell, so The interference of the first beam pair of the overlapping coverage area with other beams in the area is small, thereby reducing the interference power in the overlapping coverage area of the different cells.

附图说明DRAWINGS

为了更清楚地说明本发明实施例的技术方案，下面将对现有技术或实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the prior art or the embodiments will be briefly described below. Obviously, the drawings in the following description are only some implementations of the present invention. For example, other drawings may be obtained from those of ordinary skill in the art in light of the inventive work.

图1是根据本发明实施例提供的一种移动通信***的应用场景图；1 is an application scenario diagram of a mobile communication system according to an embodiment of the present invention;

图2是根据本发明实施例提供一种发送信号的方法的流程图；2 is a flowchart of a method for transmitting a signal according to an embodiment of the present invention;

图3是根据本发明实施例提供一种发送信号的装置的框图；3 is a block diagram of an apparatus for transmitting a signal according to an embodiment of the present invention;

图4是根据本发明实施例提供一种发送信号的装置的框图；4 is a block diagram of an apparatus for transmitting a signal according to an embodiment of the present invention;

图5是根据本发明是实力提供的一种发送信号的方法流程图；5 is a flow chart of a method for transmitting a signal according to the present invention;

图6是根据本发明是实力提供的一种应用场景示意图；6 is a schematic diagram of an application scenario provided by the strength according to the present invention;

图7是根据本发明是实力提供的一种应用场景示意图。FIG. 7 is a schematic diagram of an application scenario provided by the strength according to the present invention.

具体实施方式detailed description

本发明实施例提出了一种发射信号的方法、装置和***，基站在发射信号时，指向小区重叠覆盖区域内的波束使用更小的发射功率，实现了在小区重叠覆盖区域内降低干扰的效果。Embodiments of the present invention provide a method, apparatus, and system for transmitting a signal, where a base station transmits a signal When the number is used, the beam directed to the overlapping coverage area of the cell uses a smaller transmission power, thereby achieving the effect of reducing interference in the overlapping coverage area of the cell.

实施例1Example 1

图1描述了本发明实施例提供的一种移动通信***的应用场景，场景中包括具有第一基站101、第二基站102、第一终端103。其中，所述第一基站101和所述第二基站102各自形成的小区直接存在重叠覆盖区域；所述第一终端103位于所述重叠覆盖区域内。FIG. 1 is a schematic diagram of an application scenario of a mobile communication system according to an embodiment of the present invention. The scenario includes a first base station 101, a second base station 102, and a first terminal 103. The cell formed by each of the first base station 101 and the second base station 102 directly has an overlapping coverage area; the first terminal 103 is located in the overlapping coverage area.

在通信过程中，处在所述重叠覆盖区域内的第一终端103若选择与所述第一基站101进行通信，则所第二基站102的发射信号会对第一终端103与第一基站101之间的通信形成干扰；反之亦然。In the communication process, if the first terminal 103 in the overlapping coverage area selects to communicate with the first base station 101, the transmission signal of the second base station 102 may be related to the first terminal 103 and the first base station 101. Communication between the two forms interference; vice versa.

为了降低在不同小区或不同者扇区之间重叠覆盖区域内的干扰问题，本发明实施例提出一种发送信号的方法，在本发明实施例中提到的基站可以是支持波束赋形技术的通信设备，具体包括但不限于LTE基站、演进型LTE基站、微基站、无线路由器、无线中继器。图2示出了本发明实施例的方法的步骤，步骤包括：In order to reduce the interference problem in the overlapping coverage area between different cells or different sectors, the embodiment of the present invention provides a method for transmitting a signal, and the base station mentioned in the embodiment of the present invention may be a beamforming forming technology. The communication device includes, but is not limited to, an LTE base station, an evolved LTE base station, a micro base station, a wireless router, and a wireless repeater. Figure 2 shows the steps of a method of an embodiment of the invention, the steps comprising:

步骤201，基站确定波束的方向和所述波束的发射功率；Step 201: The base station determines a direction of the beam and a transmit power of the beam.

步骤202，所述基站根据所述波束的发射功率，在所述波束的方向上发射信号；Step 202: The base station transmits a signal in a direction of the beam according to a transmit power of the beam.

其中所述基站至少形成第一波束和第二波束，所述第一波束的方向不同于所述第二波束的方向，所述第一波束的发射功率不同于所述第二波束的发射功率。 The base station forms at least a first beam and a second beam, and a direction of the first beam is different from a direction of the second beam, and a transmit power of the first beam is different from a transmit power of the second beam.

在具体的实施过程中，由于在基站形成的波束中，指向不同小区重叠覆盖区域的波束的发射功率要小于不指向不同小区重叠覆盖区域的波束的发射功率，因此对于处在不同小区重叠覆盖区域内的用户设备而言，其接收到的信号的功率相对来说就小了。由于在小区重叠覆盖区域内，如前所述，那么当信号的接收功率变小后，相对于其他信号的干扰功率也就响应减小，从而实现了降低干扰功率的效果。In a specific implementation process, since the transmit power of the beam that points to the overlapping coverage area of the different cell is smaller than the transmit power of the beam that does not point to the overlapping coverage area of the different cell, the overlapping coverage area is different in the cell. In the case of user equipment within, the power of the received signal is relatively small. Since in the overlapping coverage area of the cell, as described above, when the received power of the signal becomes smaller, the interference power with respect to other signals is also reduced, thereby achieving the effect of reducing the interference power.

可选的，垂直方向倾角小于预设阈值的波束所对应的区域；其中，波束的方向包括垂直方向倾角，所述垂直方向倾角具体为波束的主瓣方向与所述波束的主瓣方向在水平面的投影的夹角。在具体的实施过程中，对于如图1所示的场景，基站分布在地表。对于基站的形成的波束，其垂直方向倾角越小，则所述波束照射的距离就越远；换言之，若所述波束的垂直方向倾角越小，则所述波束指向的位置就越容易接近不同小区之间的重叠覆盖区域，当所述波束的垂直方向倾角小于一定阈值时，则认为所述波束对应的区域即使不同小区之间的重叠覆盖区域。通过设置阈值的方法来根据波束的角度设定波束的发射功率在工程上容易实现。Optionally, an area corresponding to a beam whose vertical tilt angle is smaller than a preset threshold; wherein the direction of the beam includes a vertical direction tilt angle, where the vertical direction tilt angle is specifically a main lobe direction of the beam and a main lobe direction of the beam is at a horizontal plane The angle of the projection. In a specific implementation process, for the scenario shown in FIG. 1, the base stations are distributed on the surface. For a beam formed by a base station, the smaller the tilt angle in the vertical direction is, the farther the beam is irradiated; in other words, if the vertical tilt angle of the beam is smaller, the position where the beam is directed is more likely to be different. An overlapping coverage area between cells, when the vertical tilt angle of the beam is less than a certain threshold, the area corresponding to the beam is considered to be an overlapping coverage area between different cells. Setting the threshold by the method of setting the threshold according to the angle of the beam is easy to implement in engineering.

本发明实施例不限定基站形成的任何两个波束之间的方向不同且发射功率不同，也不限定基站在同一时间至少形成两个波束。The embodiment of the present invention does not limit the direction between any two beams formed by the base station and the transmission power is different, and does not limit the base station to form at least two beams at the same time.

可选的，所述基站根据所述波束的方向，确定所述波束的发射功率。具体的方法可以包括以下之一或者组合：Optionally, the base station determines a transmit power of the beam according to a direction of the beam. The specific method may include one or a combination of the following:

①所述基站根据波束的方向，设置所述波束对应的发射功率值。例如，基站根据第一波束的方向，为第一波束设置1瓦的反射功率；根据第二波束的方向，为第二波束设置2瓦的发射功率。1 The base station sets a transmit power value corresponding to the beam according to a direction of the beam. For example, the base station sets a reflected power of 1 watt for the first beam according to the direction of the first beam; and sets a transmit power of 2 watts for the second beam according to the direction of the second beam.

②所述基站根据波束的方向，设置所述波束的发射功率相对于参考功率值的比值。例如，基站根据第一波束方向，为第一波束设置相对参考功率值的比值为0.8；基站根据第二波束方向，为第二波束设置相对参考功率值的比值为1.2；参考功率值为1瓦，那么第一波束的发射功率为0.8瓦，第二波束的发射功率为1.2瓦。2 The base station sets a ratio of a transmit power of the beam to a reference power value according to a direction of the beam. For example, the base station sets a ratio of the relative reference power value to the first beam according to the first beam direction to be 0.8; the base station sets a ratio of the relative reference power value to the second beam according to the second beam direction to be 1.2; the reference power value is 1 watt. , then the first beam has a transmit power of 0.8 watts, the second wave The beam has a transmit power of 1.2 watts.

③所述基站根据波束的方向，设置所述波束的发射功率相对于参考功率值的衰减值。例如，基站根据第一波束方向，为第一波束设置相对参考功率值的衰减值为6dB；基站根据第二波束方向，为第二波束设置相对参考功率值的衰减值为3dB；参考功率值为1瓦即30dBm，那么第一波束的发射功率为24dBm即0.25瓦，第二波束的发射功率为27dBm即0.5瓦。3: The base station sets an attenuation value of the transmit power of the beam with respect to a reference power value according to a direction of the beam. For example, the base station sets the attenuation value of the relative reference power value for the first beam to 6 dB according to the first beam direction; and the base station sets the attenuation value of the relative reference power value to the second beam according to the second beam direction by 3 dB; the reference power value is 1 watt is 30 dBm, then the first beam has a transmit power of 24 dBm or 0.25 watts, and the second beam has a transmit power of 27 dBm or 0.5 watt.

④所述基站根据波束的方向，设置所述波束的发射功率相对于参考功率值的增量值。例如，基站根据第一波束方向，为第一波束设置相对参考功率值的增量值为3dB；基站根据第二波束方向，为第二波束设置相对参考功率值的增量值为6dB；参考功率值为1瓦即30dBm，那么第一波束的发射功率为33dBm即2瓦，第二波束的发射功率为36dBm即4瓦。4 The base station sets an increment value of the transmit power of the beam with respect to a reference power value according to a direction of the beam. For example, the base station sets the incremental value of the relative reference power value for the first beam to 3 dB according to the first beam direction; and the base station sets the incremental value of the relative reference power value for the second beam according to the second beam direction by 6 dB; reference power The value is 1 watt or 30 dBm, then the first beam has a transmit power of 33 dBm or 2 watts, and the second beam has a transmit power of 36 dBm or 4 watts.

可选的，在具体的实现过程中，在实施步骤101之前，还可以包括：基站获取波束的方向。基站获取波束的方向的方法包括至少两种：根据预定义的方式确定波束的方向；基站根据用户设备UE发送的消息确定波束的方向。Optionally, in a specific implementation process, before the step 101 is performed, the base station may further include: acquiring, by the base station, a direction of the beam. The method for the base station to acquire the direction of the beam includes at least two types: determining the direction of the beam according to a predefined manner; and determining, by the base station, the direction of the beam according to the message sent by the user equipment UE.

具体来说，基站根据预定义的方式确定波束的方向的方法可以包括有：基站主动形成波束，由于基站根据内置的参数或者规则形成波束，因此基站也已经具有了与波束方向相关的信息，因此可以确定波束的方向；基站读取当前各个天线振子或者天线振子组的相位和/或幅度信息，根据读取到的信息，计算出波束的方向。Specifically, the method for determining, by a base station, the direction of the beam according to a predefined manner may include: the base station actively forms a beam, and since the base station forms a beam according to built-in parameters or rules, the base station also has information related to the beam direction, and therefore The direction of the beam can be determined; the base station reads the current phase and/or amplitude information of each antenna element or antenna element group, and calculates the direction of the beam according to the read information.

具体来说，基站与UE进行通信，可以通过UE发送的消息确定波束的方向。可选的，基站可以根据UE发送的波束序号来确定所述波束的方向；可选的，基站可以根据UE发送的天线端口序号来确定所述波束的方向；可选的，基站可以根据UE发送的预编码矩阵序号来确定所述波束的方向。Specifically, the base station communicates with the UE, and the direction of the beam may be determined by using a message sent by the UE. Optionally, the base station may determine the direction of the beam according to the beam sequence number sent by the UE. Optionally, the base station may determine the direction of the beam according to the sequence of the antenna port sent by the UE. Optionally, the base station may send according to the UE. The precoding matrix sequence number determines the direction of the beam.

可选的，在具体的实现过程中，波束由所述基站形成的方法可以包括：基站通过天线阵子上的加权值形成，其中加权值可以为相位加权值和/或幅度加权值。具体来说，一种可能的实现方式为：基站包括一个天线阵列，天线阵列由多个天线振子组成；基站通过调节激励每个天线振子的馈源信号的相位和/或幅度，实现在不同天线阵子辐射的电磁信号的相长干涉或者相消干涉，从而形成在一定方向上的波束。Optionally, in a specific implementation process, the method for forming a beam by the base station may include: forming, by the base station, a weighting value on an antenna array, where the weighting value may be a phase weighting value and/or an amplitude weighting value. Specifically, a possible implementation manner is: the base station includes an antenna array, and the antenna The array is composed of a plurality of antenna elements; the base station realizes constructive interference or destructive interference of electromagnetic signals radiated by different antenna elements by adjusting the phase and/or amplitude of the feed signal of each antenna element, thereby forming a certain direction The beam on it.

根据本发明实施例的方法，基站形成的波束中，指向不同小区重叠覆盖的区域的波束的发射功率要小于未指向不同小区重叠覆盖区域的波束的发射功率，从而降低了对所述不同小区重叠覆盖区域内的干扰功率。According to the method of the embodiment of the present invention, in a beam formed by a base station, a transmit power of a beam directed to an area covered by overlapping cells of different cells is smaller than a transmit power of a beam not directed to an overlapping coverage area of a different cell, thereby reducing overlap of the different cells. Interference power within the coverage area.

实施例2Example 2

图3示出了本发明实施例提出了一种发射信号的装置，装置包括处理器301和收发器302，其中：FIG. 3 illustrates an apparatus for transmitting a signal according to an embodiment of the present invention. The apparatus includes a processor 301 and a transceiver 302, wherein:

所述处理器301用于确定波束的方向和所述波束的发射功率；The processor 301 is configured to determine a direction of a beam and a transmit power of the beam;

所述收发器302用于根据所述波束的发射功率，在所述波束的方向上发射信号；其中，所述波束至少包括第一波束和第二波束，其中所述第一波束的发射功率小于所述第二波束的发射功率；其中，所述第一波束的方向指向不同小区重叠覆盖的区域；其中，所述第二波束的方向不指向不同小区重叠覆盖的区域。The transceiver 302 is configured to transmit a signal in a direction of the beam according to a transmit power of the beam, where the beam includes at least a first beam and a second beam, where a transmit power of the first beam is less than The transmit power of the second beam; wherein the direction of the first beam is directed to an area covered by overlapping of different cells; wherein, the direction of the second beam does not point to an area covered by overlapping of different cells.

可选的，所述不同小区重叠覆盖的区域包括：垂直方向倾角小于预设阈值的波束所对应的区域。Optionally, the overlapping coverage area of the different cells includes: an area corresponding to a beam whose vertical inclination is less than a preset threshold.

其中，波束的方向包括垂直方向倾角，所述垂直方向倾角具体为波束的主瓣方向与所述波束的主瓣方向在水平面的投影的夹角。The direction of the beam includes a vertical tilt angle, which is specifically an angle between a main lobe direction of the beam and a projection of the main lobe direction of the beam at a horizontal plane.

可选的，所述处理器301用于，根据所述波束的方向，确定所述波束的发射功率。Optionally, the processor 301 is configured to determine, according to a direction of the beam, a transmit power of the beam.

可选的，所述处理器301用于根据所述波束的方向，确定所述波束的发射功率包括：所述处理器301用于根据波束的方向，设定所述波束对应的发射功率值；或者Optionally, the determining, by the processor 301, the transmit power of the beam according to the direction of the beam, where the processor 301 is configured to set a transmit power value corresponding to the beam according to a direction of the beam; or

所述处理器301用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的比值；或者The processor 301 is configured to set, according to a direction of a beam, a transmit power of the beam relative to The ratio of the reference power values; or

所述处理器301用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的衰减值；或者The processor 301 is configured to set, according to a direction of a beam, an attenuation value of a transmit power of the beam relative to a reference power value; or

所述处理器301用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的增量值。The processor 301 is configured to set an increment value of a transmit power of the beam relative to a reference power value according to a direction of the beam.

根据本发明实施例的方法，所述装置在形成的波束中，指向不同小区重叠覆盖的区域的波束的发射功率要小于未指向不同小区重叠覆盖区域的波束的发射功率，从而降低了对所述不同小区重叠覆盖区域内的干扰功率。According to the method of the embodiment of the present invention, in the formed beam, the transmit power of the beam directed to the overlapping coverage area of the different cell is smaller than the transmit power of the beam not directed to the overlapping coverage area of the different cell, thereby reducing the Different cells overlap the interference power in the coverage area.

实施例3Example 3

图4示出了本发明实施例提出了一种发射信号的装置，装置包括确定模块401和发射模块402，其中：4 shows an apparatus for transmitting a signal according to an embodiment of the present invention. The apparatus includes a determining module 401 and a transmitting module 402, where:

确定模块401，用于确定波束的方向和波束的发射功率；a determining module 401, configured to determine a direction of the beam and a transmit power of the beam;

发射模块402，用于根据所述波束的反射功率，在所述波束的方向上发射信号；其中，所述波束至少包括第一波束和第二波束，其中所述第一波束的发射功率小于所述第二波束的发射功率；其中，所述第一波束的方向指向不同小区重叠覆盖的区域；其中，所述第二波束的方向不指向不同小区重叠覆盖的区域。a transmitting module 402, configured to transmit a signal in a direction of the beam according to a reflected power of the beam, where the beam includes at least a first beam and a second beam, where a transmit power of the first beam is smaller than a Transmitting power of the second beam; wherein, the direction of the first beam is directed to an area covered by overlapping of different cells; wherein, the direction of the second beam does not point to an area covered by overlapping of different cells.

可选的，所述不同小区重叠覆盖的区域包括：垂直方向倾角小于预设阈值的波束所对应的区域；其中，波束的方向包括垂直方向倾角，所述垂直方向倾角具体为波束的主瓣方向与所述波束的主瓣方向在水平面的投影的夹角。Optionally, the area covered by the different cells overlaps: the area corresponding to the beam whose vertical inclination is less than a preset threshold; wherein the direction of the beam includes a vertical inclination, and the vertical inclination is specifically a main lobe direction of the beam. An angle with the projection of the main lobe direction of the beam at a horizontal plane.

可选的，所述确定模块401用于，根据所述波束的方向，确定所述波束的发射功率。Optionally, the determining module 401 is configured to determine, according to a direction of the beam, a transmit power of the beam.

可选的，所述确定模块401用于，根据所述波束的方向，确定所述波束的发射功率包括：所述确定模块401用于根据波束的方向，设定所述波束对应的发射功率值；或者Optionally, the determining module 401 is configured to determine, according to the direction of the beam, the transmit power of the beam, where the determining module 401 is configured to set the beam pair according to a direction of the beam. The value of the transmit power; or

所述确定模块401用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的比值；或者The determining module 401 is configured to set a ratio of a transmit power of the beam to a reference power value according to a direction of the beam; or

所述确定模块401用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的衰减值；或者The determining module 401 is configured to set, according to a direction of the beam, an attenuation value of the transmit power of the beam relative to a reference power value; or

所述确定模块401用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的增量值。The determining module 401 is configured to set an increment value of a transmit power of the beam relative to a reference power value according to a direction of the beam.

实施例4Example 4

本发明实施例提出一种方法，用以降低处在小区覆盖重叠区域内通信设备接收时干扰的问题，同时也可以降低服务小区的通信设备的发射功率。本发明实施例提出的方法的实施步骤包括：The embodiment of the invention provides a method for reducing the interference when the communication device is received in the overlapping area of the cell coverage, and also reduces the transmission power of the communication device of the serving cell. The implementation steps of the method proposed in the embodiment of the present invention include:

501，第一通信设备根据波束的方向，确定所述波束的发射功率；501. The first communications device determines a transmit power of the beam according to a direction of the beam.

502，所述第一通信设备根据所述波束的发射功率，发射信号；502. The first communications device transmits a signal according to a transmit power of the beam.

其中所述波束由第一通信设备形成；Wherein the beam is formed by a first communication device;

其中，所述波束的方向包括垂直方向倾角，一种可选的对垂直方向倾角的定义方法为，波束的主瓣方向与所述波束的主瓣方向在水平的投影的夹角。所述第一设备可以至少形成第一波束和第二波束，所述第一波束的垂直方向倾角小于所述第二波束的垂直方向倾角，所述第一波束的发射功率小于第二波束的发射功率。Wherein, the direction of the beam includes a vertical tilt angle, and an optional vertical tilt angle is defined by an angle between a main lobe direction of the beam and a horizontal projection of the main lobe direction of the beam. The first device may form at least a first beam and a second beam, where a vertical tilt angle of the first beam is smaller than a vertical tilt angle of the second beam, and a transmit power of the first beam is smaller than a second beam power.

可选的，另一种对垂直方向倾角的定义方法为，波束的主瓣方向与直角坐标系z轴正方向的夹角。其中，所述直角坐标系包括两两正交的x，y，z轴，其中z轴垂直于地面，正方向由地面指向天空。 Optionally, another method for defining the tilt angle in the vertical direction is the angle between the main lobe direction of the beam and the positive direction of the z-axis of the Cartesian coordinate system. Wherein, the Cartesian coordinate system includes two orthogonal x, y, and z axes, wherein the z axis is perpendicular to the ground, and the positive direction is directed from the ground to the sky.

结合图1的情景，在具体的实施过程中，由于第一通信设备所形成的波束中，垂直维度倾角较小的波束对应的区域包括本小区的边缘地区；本小区的边缘区域往往也是相邻小区的边缘区域，因此在现实场景中不可避免的出现小区重叠覆盖的情景。在小区重叠覆盖区域内，不同的第一通信设备形成的波束之间互为干扰信号；若提高对应小区重叠覆盖区域内的波束的发射功率，处在此区域的第二通信设备接收信号的信干噪比没有提升，信道容量也没有提高；若降低对应小区重叠覆盖区域内的波束的发射功率，处在此区域的第二通信设备接收信号的干扰功率下降，尽管由于有用信号的发射功率可能也下降从而导致信干噪比没有提升，但是第一通信设备节省了功率，能量的利用率得到提高。With reference to the scenario of FIG. 1 , in a specific implementation process, an area corresponding to a beam having a small vertical dip angle includes an edge area of the cell, and an edge area of the cell is also adjacent. The edge area of the cell, so in the real scene, the scene of overlapping coverage of the cell is inevitable. In the overlapping coverage area of the cell, the beams formed by the different first communication devices are mutually interfered signals; if the transmit power of the beam in the overlapping coverage area of the corresponding cell is increased, the second communication device in the area receives the signal of the signal. The dry-to-noise ratio is not improved, and the channel capacity is not improved. If the transmit power of the beam in the overlapping coverage area of the corresponding cell is reduced, the interference power of the received signal of the second communication device in the area is decreased, although the transmit power may be due to the useful signal. It also drops, resulting in no improvement in the signal to interference and noise ratio, but the first communication device saves power and the energy utilization rate is improved.

因此，通过根据波束的垂直维度倾角，控制或者调整波束的发射功率——为较小的垂直维度倾角的波束配置相对于较大的垂直维度倾角的波束而言较低的发射功率，不仅降低了在小区重叠覆盖区域内的干扰功率，也节省了用以为小区提供服务的第一通信设备的发射功率。Therefore, by controlling or adjusting the transmit power of the beam according to the vertical dimension of the beam, the beam configuration for a smaller vertical dimension tilt is lower than the beam with a larger vertical dimension tilt, which not only reduces the transmit power. The interference power in the overlapping coverage area of the cell also saves the transmission power of the first communication device used to serve the cell.

在具体的实现过程中，结合具体的实施场景，可能不是为较小的垂直维度倾角的波束设置更小的发射功率，甚至可能恰恰相反。图6示出了另一种可能的现实场景：场景中包括第一高层建筑物601和第二高层建筑物602，在第一高层建筑物601的不同高度上分别设置第一基站603和第二基站604，用以为第二高层建筑物602不同高度的用户提供服务。那么根据上面的分析，可以知道，第一基站603和第二基站604的根据波束的垂直维度倾角进行设置，波束垂直方向倾角较小的波束对应的发射功率大于波束垂直方向倾角较大的波束对应的波束的发射功率，从而可以获得降低小区重叠覆盖区域内的干扰功率、节省第一基站603和第二基站604的发射功率的效果。In a specific implementation process, combined with a specific implementation scenario, it may not be possible to set a smaller transmit power for a beam with a smaller vertical dimension tilt angle, or even the opposite. FIG. 6 shows another possible real-life scenario: the first high-rise building 601 and the second high-rise building 602 are included in the scene, and the first base station 603 and the second base are respectively disposed at different heights of the first high-rise building 601. The base station 604 is configured to provide services for users of different heights of the second high-rise building 602. Then, according to the above analysis, it can be known that the first base station 603 and the second base station 604 are set according to the vertical dimension inclination of the beam, and the beam corresponding to the beam having the smaller vertical inclination angle has a larger transmission power than the beam with the larger vertical inclination angle of the beam. The transmit power of the beam, so that the interference power in the overlapping coverage area of the cell can be reduced, and the transmission power of the first base station 603 and the second base station 604 can be saved.

由于本实施例是结合实施例1对一种具体情景的说明，因此在实施例1中关于第一通信设备获取波束的方向的方法、根据波束的方向确定波束的发射功率的方法等的说明，在本实施例中也都适用，本实施例对此不再赘述。 Since the present embodiment is a description of a specific scenario in conjunction with Embodiment 1, the method of acquiring the direction of the beam by the first communication device in Embodiment 1, the method of determining the transmission power of the beam according to the direction of the beam, and the like, It is also applicable in this embodiment, and this embodiment will not be described again.

实施例5Example 5

本实施例在实施例1的基础上，结合一种具体的情景对本发明实施例的内容进行说明。图7示出了一种在移动通信网络中的典型情景，对应于实施例1中的描述，图7中的基站对应第一通信设备，图7中的用户设备UE对应第二通信设备，当然结合其他的场景，第一通信设备或者第二通信设备的具体形式可能有所变化，本发明对此不作限制。This embodiment describes the content of the embodiment of the present invention on the basis of the first embodiment in combination with a specific scenario. FIG. 7 shows a typical scenario in a mobile communication network. Corresponding to the description in Embodiment 1, the base station in FIG. 7 corresponds to the first communication device, and the user equipment UE in FIG. 7 corresponds to the second communication device, of course. The specific form of the first communication device or the second communication device may be changed in combination with other scenarios, and the present invention does not limit this.

图7示出的场景中包括：一个基站设置点，在基站设置点上可能设置有一个或者多个基站；以基站设置点为顶点，一个或者多个基站形成多个扇区，本场景中具体包括第一扇区、第二扇区、第三扇区，每个扇区覆盖120°的范围。场景中还包括第一UE701，第二UE702。其中，第一UE702位于第一扇区的中间位置，第二UE702位于第一扇区和第二扇区的交界位置。The scenario shown in FIG. 7 includes: a base station set point, where one or more base stations may be set at the base station set point; and the base station set point is a vertex, and one or more base stations form multiple sectors, which is specific in this scenario. The first sector, the second sector, and the third sector are included, each sector covering a range of 120°. The first UE 701 and the second UE 702 are also included in the scenario. The first UE 702 is located at an intermediate position of the first sector, and the second UE 702 is located at a boundary position of the first sector and the second sector.

在场景中，形成扇区的基站基于波束赋形技术，可以产生多个水平维度方向的波束，多个不同水平维度方向的波束覆盖120°的扇区范围。由于波束总是具有一定宽度的，因此，在具体的实现过程中，扇区的交界位置会存在重叠覆盖，也就是说，在图7的场景中，位于第一扇区和第二扇区的交界位置的第二UE702可能同时接收到包括在第一扇区的波束和包括在第二扇区的波束。与实施例2中处在小区重叠覆盖区域内的UE的境遇类似，本场景中的第二UE702遭受的干扰问题严重，换言之，扇区在相邻重叠覆盖区域内可能存在同频干扰。In a scenario, a base station forming a sector may generate a plurality of beams in a horizontal dimension direction based on a beamforming technique, and a plurality of beams in different horizontal dimension directions cover a sector range of 120°. Since the beam always has a certain width, in a specific implementation process, there may be overlapping coverage at the boundary position of the sector, that is, in the scenario of FIG. 7, located in the first sector and the second sector. The second UE 702 at the border location may simultaneously receive the beam included in the first sector and the beam included in the second sector. Similar to the situation of the UE in the cell overlap coverage area in Embodiment 2, the second UE 702 in this scenario suffers from a serious interference problem, in other words, the sector may have co-channel interference in the adjacent overlapping coverage area.

本发明实施例提出的方法可以用以解决上述问题，即降低处在扇区覆盖重叠区域内通信设备接收时干扰的问题，同时也可以降低服务小区的通信设备的发射功率。本发明实施例提出的方法的实施步骤包括：The method provided by the embodiment of the present invention can be used to solve the above problem, that is, to reduce the interference when the communication device is received in the sector coverage overlap region, and also reduce the transmission power of the communication device of the serving cell. The implementation steps of the method proposed in the embodiment of the present invention include:

801，第一通信设备根据波束的方向，确定所述波束的发射功率；801. The first communications device determines a transmit power of the beam according to a direction of the beam.

802，所述第一通信设备根据所述波束的发射功率，发射信号；802. The first communications device transmits a signal according to a transmit power of the beam.

其中所述波束由第一通信设备形成； Wherein the beam is formed by a first communication device;

其中，所述波束的方向包括水平方向角度，一种可选的对水平方向角度的定义包括：所述波束的主瓣方向，与所述波束所在的扇区与相邻扇区的公共边界的最小夹角；其中，所述相邻扇区与所述波束的所在扇区具有公共顶点，且所述第一通信设备位于所述公共顶点。其中，所述公共顶点对应于图7示出的场景中的基站设置点。The direction of the beam includes a horizontal direction angle, and an optional definition of the horizontal direction angle includes: a main lobe direction of the beam, and a common boundary between a sector where the beam is located and an adjacent sector a minimum angle; wherein the adjacent sector has a common vertex with the sector in which the beam is located, and the first communication device is located at the common vertex. Wherein, the common vertex corresponds to a base station setting point in the scene shown in FIG.

所述第一通信设备在水平方向可以至少形成角度不同的第一波束和第二波束，其中第一波束的水平方向角度小于第二波束的水平方向角度，所述第一波束的发射功率小于第二波束的发射功率。更具体的，第一波束的方向更靠近扇区之间公共边界，第二波束的方向相对于第一波束的方向而言更加远离扇区之间的公用边界，则更具波束的方向，设置第一波束的发射功率小于第二波束的发射功率。The first communication device may form at least a first beam and a second beam with different angles in a horizontal direction, where a horizontal direction angle of the first beam is smaller than a horizontal direction angle of the second beam, and a transmit power of the first beam is smaller than a first The transmit power of the two beams. More specifically, the direction of the first beam is closer to the common boundary between the sectors, and the direction of the second beam is farther away from the common boundary between the sectors with respect to the direction of the first beam, and the direction of the beam is more set. The transmit power of the first beam is less than the transmit power of the second beam.

结合图7的场景，在具体的实施过程中，第一扇区由第一基站形成，第二扇区可以但不限于由第一基站形成。第一UE701处于第一扇区靠近中心的位置，相应的，第一基站形成水平方向角度较大的波束用以服务第一UE701或者处在第一UE701附近的UE；第二UE702处于第一扇区靠近边界的位置，相应的，第一基站形成水平方向角度较小的波束用以服务第二波束UE702或者处于第二UE702附近的UE。In conjunction with the scenario of FIG. 7, in a particular implementation, the first sector is formed by a first base station, and the second sector may be, but is not limited to, formed by the first base station. The first UE 701 is located at a position close to the center of the first sector. Correspondingly, the first base station forms a beam with a larger horizontal angle to serve the first UE 701 or a UE located near the first UE 701; the second UE 702 is in the first fan. The location of the area close to the boundary, correspondingly, the first base station forms a beam with a smaller horizontal direction to serve the second beam UE 702 or the UE in the vicinity of the second UE 702.

第二UE702由于处在第一扇区和第二扇区的交界位置，因此会同时接收到第二扇区对应此区域的波束和第一扇区的所述水平方向角度较小的波束。这两种波束互为干扰信号；若所述两种波束的发射功率都提高，那么处在此区域的第二UE702的接收信号的信干噪比没有提升，信道容量也没有提高；若所述两种波束的发射功率都降低，那么第二UE702的接收信号中干扰信号的功率降低，尽管由于有用信号的功率可能同时下降导致信干噪比没有提升，但是处在基站设置点的第一基站由于降低了发射功率，即节省了功率，能量的利用率得到了提高。Since the second UE 702 is at the boundary position between the first sector and the second sector, the beam corresponding to the area of the second sector and the beam with the smaller angle in the horizontal direction of the first sector are simultaneously received. The two beams are mutually interfering signals; if the transmit power of the two beams is increased, the signal to interference and noise ratio of the received signal of the second UE 702 in the area is not improved, and the channel capacity is not improved; The transmit power of both beams is reduced, and the power of the interference signal in the received signal of the second UE 702 is reduced, although the signal to interference and noise ratio is not improved because the power of the useful signal may decrease at the same time, the first base station at the base station set point Since the transmission power is reduced, that is, power is saved, the energy utilization rate is improved.

因此，通过根据波束的水平维度角度，控制或者调整波束的发射功率——为较小的水平维度角度的波束配置相对于较大的水平维度角度的波束而言较低的反射功率，不仅降低了在扇区重叠覆盖区域内的干扰功率，也节省了用以为扇区提供服务的第一通信设备的发射功率，从而提高了能量的利用率。Therefore, by controlling or adjusting the transmit power of the beam according to the horizontal dimension of the beam Rate—the lower reflected power of a beam configuration for a smaller horizontal dimension angle relative to a beam with a larger horizontal dimension angle not only reduces the interference power in the sector overlap coverage area, but also saves The sector provides the transmit power of the serving first communication device, thereby increasing energy utilization.

由于本实施例是结合实施例1对一种具体情景的说明，因此在实施例1中关于第一通信设备获取波束的方向的方法、根据波束的方向确定波束的发射功率的方法等的说明，在本实施例中也都适用，本实施例对此不再赘述。Since the present embodiment is a description of a specific scenario in conjunction with Embodiment 1, the method of acquiring the direction of the beam by the first communication device in Embodiment 1, the method of determining the transmission power of the beam according to the direction of the beam, and the like, It is also applicable in this embodiment, and this embodiment will not be described again.

实施例6Example 6

本发明实施例在实施例1的基础上，提出了一种控制波束发射功率的方法。本发明实施例方法的步骤包括：Embodiments of the present invention provide a method for controlling beam transmit power based on Embodiment 1. The steps of the method of the embodiment of the present invention include:

901，第一通信设备根据第二通信设备发送的预编码矩阵指示PMI，从码本中选择预编码矩阵；901. The first communications device indicates a PMI according to a precoding matrix sent by the second communications device, and selects a precoding matrix from the codebook.

可选的，在具体的实施过程中，在执行步骤901前，还包括，第二通信设备根据第一通信设备的参考信号，确定预编码矩阵，并向所述第一通信设备发送对应所述预编码矩阵的预编码矩阵指示PMI。Optionally, in a specific implementation process, before performing step 901, the method further includes: determining, by the second communications device, the precoding matrix according to the reference signal of the first communications device, and transmitting, to the first communications device, the corresponding The precoding matrix of the precoding matrix indicates the PMI.

在具体的实施过程中，第二通信设备上应用或者存储的码本可以是第一通信设备上应用或者存储的码本的一个子集，第一通信设备根据第二通信设备发送的PMI，可以第一通信设备的码本中确定所述第二通信设备所选择的预编码矩阵。In a specific implementation process, the codebook applied or stored on the second communications device may be a subset of the codebook applied or stored on the first communications device, and the first communications device may be configured according to the PMI sent by the second communications device. A precoding matrix selected by the second communication device is determined in a codebook of the first communication device.

902，所述第一通信设备根据所述预编码矩阵，确定对应的波束的方向和发射功率；902. The first communications device determines, according to the precoding matrix, a direction and a transmit power of a corresponding beam.

所述第一通信设备根据所述预编码矩阵对应波束的方向和发射功率，发射所述波束；Transmitting, by the first communications device, the beam according to a direction and a transmit power of the corresponding beam of the precoding matrix;

其中，所述码本中至少包括第一预编码矩阵和第二预编码矩阵，所述第一预编码矩阵对应的波束的方向与所述第二预编码矩阵对应的波束的方向不同，所述第一预编码矩阵对应的波束的发射功率与所述第二预编码矩阵对应的波束的发射功率不同。The codebook includes at least a first precoding matrix and a second precoding matrix, where a direction of a beam corresponding to the first precoding matrix is different from a direction of a beam corresponding to the second precoding matrix, Transmit power of a beam corresponding to the first precoding matrix and the second precoding matrix pair The transmit power of the applied beam is different.

在具体的实现过程中，可选的，码本中的预编码矩阵W满足：In a specific implementation process, optionally, the precoding matrix W in the codebook satisfies:

W＝αVW=αV

其中所述V为功率归一化的预编码矩阵，即有||V||₂＝1，α为功率因子，可以为1.2,1.0,0.8,0.5,0.25等，本发明对此不作限定，但至少在码本中至少有两个预编码矩阵对应的功率因子α不相同；功率归一化的预编码矩阵V与对应的波束的方向有关。例如，如图10所示，第一通信设备在垂直维度上包括间距均匀的四个天线振子，天线振子之间的间距为d，d≠0，发射信号的波长为λ。若第一通信设备形成的波束的垂直维度发射信号离开角为

那么，对应的功率归一化预编码矩阵V为：The V is a power-normalized precoding matrix, that is, ||V|| ₂ =1, and α is a power factor, which may be 1.2, 1.0, 0.8, 0.5, 0.25, etc., which is not limited in the present invention. However, at least two precoding matrices corresponding to the power factor a are different in the codebook; the power normalized precoding matrix V is related to the direction of the corresponding beam. For example, as shown in FIG. 10, the first communication device includes four antenna elements having a uniform pitch in the vertical dimension, the spacing between the antenna elements is d, d ≠ 0, and the wavelength of the transmitted signal is λ. If the first communication device forms a beam, the vertical dimension of the transmitted signal leaves the exit angle as

Then, the corresponding power normalized precoding matrix V is:

其中，

与之对应的，若第一通信设备选择的预编码矩阵的功率归一化预编码为上述的V，那么可以根据V确定所述第一通信设备形成的波束的垂直维度发射信号离开角

among them,

Correspondingly, if the power of the precoding matrix selected by the first communication device is normalized and precoded to the above V, the vertical dimension of the beam formed by the first communication device may be determined according to V.

又例如，码本中的预编码矩阵W可以由水平向和垂直向的预编码矢量构成，

其中W_H为水平维度的预编码矢量，W_V为垂直维度的预编码矢量，

为克罗内科乘积运算，α为功率因子。For another example, the precoding matrix W in the codebook may be composed of horizontally and vertically precoding vectors.

Where W _H is a precoding vector of a horizontal dimension, and W _V is a precoding vector of a vertical dimension,

For Kroneco product operation, α is the power factor.

本发明实施例不对第一通信设备的天线阵列中天线阵子的数量、分布形式进行限定。The embodiment of the present invention does not limit the number and distribution form of the antenna elements in the antenna array of the first communication device.

在具体的实现过程中，可选的，一种根据所述预编码矩阵确定对应的波束方向和发射功率的方法为：第一通信设备根据预编码矩阵的相位确定对应的波束的方向，根据预编码矩阵的幅度或者功率确定对应的波束的发射功率。结合以上两个例子的说明可以知道，可选的，第一通信设备根据预编码矩阵的相位确定波束的方向，即为根据预编码矩阵W的功率归一化预编码矩阵V确定

的过程，在上例中有所说明此处不再赘述；第一通信设备根据预编码矩阵的幅度或者功率确定波束的发射功率的方法，即为根据预编码矩阵W的功率因子α确定波束的发射功率，更具体的，功率因子α可以是对一个参考功率值的衰减、放大，或者功率因子α直接对应一个发射功率值，本实施例对此不作限定。In a specific implementation process, a method for determining a corresponding beam direction and a transmit power according to the precoding matrix is: the first communications device determines a direction of the corresponding beam according to a phase of the precoding matrix, according to the pre The amplitude or power of the coding matrix determines the transmit power of the corresponding beam. As can be seen from the description of the above two examples, optionally, the first communication device determines the direction of the beam according to the phase of the precoding matrix, that is, determines the precoding matrix V according to the power of the precoding matrix W.

The process in the above example is not described here; the first communication device determines the transmit power of the beam according to the amplitude or power of the precoding matrix, that is, determines the beam according to the power factor α of the precoding matrix W. The transmit power, more specifically, the power factor α may be the attenuation or amplification of a reference power value, or the power factor α directly corresponds to a transmit power value, which is not limited in this embodiment.

基于以上所述的这种通过预编码矩阵确定波束的方向和波束的发射功率的方法，可以灵活的根据波束的方向设置波束的发射功率。相对于无法根据波束的方向调整波束的发射功率的现有技术而言，这种灵活配置的方法为降低通信设备组网间的相互干扰、提高网络容量、降低功耗提供了一种可行的方法。Based on the above-described method of determining the direction of the beam and the transmission power of the beam by the precoding matrix, the transmission power of the beam can be flexibly set according to the direction of the beam. Compared with the prior art that the transmit power of the beam cannot be adjusted according to the direction of the beam, the flexible configuration method provides a feasible method for reducing mutual interference between communication equipment networks, improving network capacity, and reducing power consumption. .

在具体的实施过程中，码本中预编码矩阵对应的波束的方向和波束的发射功率相关，具体的相关方式可以与具体的应用场景相关。例如，结合图1的场景以及实施例4中对图1的场景的说明，第一基站401的码本中至少包括第一预编码矩阵W₁和第二预编码矩阵W₂，所述第一预编码矩阵对应的波束的垂直方向倾角，小于所述第二预编码矩阵对应的波束的垂直方向倾角，所述第一预编码矩阵对应的波束的发射功率小于所述第二预编码矩阵对应的波束的发射功率。更具体的，第一预编码矩阵W₁的相位对应于其对应波束的方向，W₁的功率因子对应其对应波束的发射功率；第二预编码矩阵W₂的相位对应于其对应波束的方向，W₂的功率因子对应其对应波束的发射功率。根据本实施例提出的方法，不仅可以达到实施例4中降低发射功率、减小小区重叠区域干扰功率的效果，还可以结合现有的根据预编码矩阵选择波束的方法进行实现，具有广泛的应用前景。In a specific implementation process, the direction of the beam corresponding to the precoding matrix in the codebook is related to the transmit power of the beam, and the specific related manner may be related to a specific application scenario. For example, in conjunction with the scenario of FIG. 1 and the description of the scenario of FIG. 1 in Embodiment 4, the codebook of the first base station 401 includes at least a first precoding matrix W ₁ and a second precoding matrix W ₂ , the first The vertical direction tilt angle of the beam corresponding to the precoding matrix is smaller than the vertical direction tilt angle of the beam corresponding to the second precoding matrix, and the transmit power of the beam corresponding to the first precoding matrix is smaller than the corresponding one of the second precoding matrix The transmit power of the beam. More specifically, the phase of the first precoding matrix W ₁ corresponds to the direction of its corresponding beam, the power factor of W ₁ corresponds to the transmission power of its corresponding beam; the phase of the second precoding matrix W ₂ corresponds to the direction of its corresponding beam The power factor of W ₂ corresponds to the transmit power of its corresponding beam. The method provided in this embodiment can not only achieve the effect of reducing the transmit power and reducing the interference power of the cell overlap region in Embodiment 4, but also can be implemented by combining the existing method for selecting a beam according to the precoding matrix, and has a wide application. prospect.

又例如，结合图7的场景以及实施例4中对图7的场景的说明，形成第一扇区的基站的码本中至少包括第一预编码矩阵W₁和第二预编码矩阵W₂，所述第一预编码矩阵对应的波束的水平方向角度，小于所述第二预编码矩阵对应的波束的水平方向角度，所述第一预编码矩阵对应的波束的发射功率小于所述第二预编码矩阵对应的波束的发射功率。更具体的，第一预编码矩阵W₁的相位对应于其对应波束的方向，W₁的功率因子对应其对应波束的发射功率；第二预编码矩阵W₂的相位对应于其对应波束的方向，W₂的功率因子对应其对应波束的发射功率。根据本实施例提出的方法，不仅可以达到实施例3中降低发射功率、减小小区重叠区域干扰功率的效果，还可以结合现有的根据预编码矩阵选择波束的方法进行实现，具有广泛的应用前景。As another example, a scene in conjunction with FIG. 7 and described in Example 4 of the scene of FIG. 7 embodiment, the codebook is formed of a first base station sector includes at least a first precoding matrix W ₁ and second precoding matrix W _2, The horizontal direction angle of the beam corresponding to the first precoding matrix is smaller than the horizontal direction angle of the beam corresponding to the second precoding matrix, and the transmit power of the beam corresponding to the first precoding matrix is smaller than the second pre The transmit power of the beam corresponding to the coding matrix. More specifically, the phase of the first precoding matrix W ₁ corresponds to the direction of its corresponding beam, the power factor of W ₁ corresponds to the transmission power of its corresponding beam; the phase of the second precoding matrix W ₂ corresponds to the direction of its corresponding beam The power factor of W ₂ corresponds to the transmit power of its corresponding beam. The method provided in this embodiment can not only achieve the effect of reducing the transmit power and reducing the interference power of the cell overlap region in Embodiment 3, but also can be implemented by combining the existing method for selecting a beam according to the precoding matrix, and has a wide application. prospect.

由于本实施例是结合实施例1对一种具体情景的说明，因此在实施例1中关于第一通信设备获取波束的方向的方法、根据波束的方向确定波束的发射功率的方法等的说明，在本实施例中也都适用，本实施例对此不再赘述Since the present embodiment is a description of a specific scenario in conjunction with Embodiment 1, the method of acquiring the direction of the beam by the first communication device in Embodiment 1, the method of determining the transmission power of the beam according to the direction of the beam, and the like, It is also applicable in this embodiment, and this embodiment will not be described again.

实施例7Example 7

本发明实施例提出了一种控制波束发射功率的方法，方法的步骤包括：The embodiment of the invention provides a method for controlling beam transmit power. The steps of the method include:

1001，第二通信设备根据第一通信设备发送的参考信号，从码本中选择预编码矩阵；1001. The second communications device selects a precoding matrix from the codebook according to the reference signal sent by the first communications device.

1002，所述第二通信设备向所述第一通信设备发送所述预编码矩阵对应的预编码矩阵指示PMI，所述PMI用于指示所述第一通信设备确定对应的预编码矩阵；1002. The second communications device sends, to the first communications device, a precoding matrix indicating PMI corresponding to the precoding matrix, where the PMI is used to instruct the first communications device to determine a corresponding precoding matrix.

其中，所述码本中至少包括第一预编码矩阵和第二预编码矩阵，所述第一预编码矩阵对应的波束的方向和所述第二预编码矩阵对应的波束的方向不同，所述第一预编码矩阵对应的波束的发射功率与所述第二预编码矩阵对应的波束的发射功率不同。The codebook includes at least a first precoding matrix and a second precoding matrix, where a direction of a beam corresponding to the first precoding matrix is different from a direction of a beam corresponding to the second precoding matrix, The transmit power of the beam corresponding to the first precoding matrix is different from the transmit power of the beam corresponding to the second precoding matrix.

可选的，在具体的实施步骤1001的过程中，参考信号可以包括信道状态信息参考信号(channel state information Reference Signal，CSI RS)或者解调参考信号(demodulation RS，DM RS)或者小区特定的参考信号(cell-specific RS，CRS)。第二通信设备可以通过接收无线资源控制(Radio Resource Control，RRC)信令或者下行控制信息DCI)或者基于小区标识ID得到所述参考信号的资源配置并在对应的资源或者子帧得到参考信号。Optionally, in a specific implementation step 1001, the reference signal may include a channel state information reference signal (CSI RS) or a demodulation reference signal (demodulation RS, DM RS) or a cell-specific reference. Signal (cell-specific RS, CRS). The second communication device can receive radio resource control (Radio) Resource Control (RRC) signaling or downlink control information DCI) or resource configuration of the reference signal based on the cell identity ID and a reference signal is obtained in the corresponding resource or subframe.

可选的，在具体的实施步骤1001的过程中，所述第二通信设备根据第一通信设备发送的参考信号，从码本中选择预编码矩阵可以包括：所述第二通信设备根据所述参考信号，确定秩指示，所述秩指示对应于可用的传输层数；所述第二通信设备根据所述秩指示，从码本中选择预编码矩阵。Optionally, in the process of the specific implementation step 1001, the selecting, by the second communications device, the precoding matrix from the codebook according to the reference signal sent by the first communications device may include: the second communications device according to the A reference indication is determined, the rank indication corresponding to the number of available transport layers; the second communication device selecting a precoding matrix from the codebook according to the rank indication.

可选的，在具体的实施步骤1001过程中，码本中的预编码矩阵W满足：Optionally, in a specific implementation step 1001, the precoding matrix W in the codebook satisfies:

W＝αVW=αV

Then, the corresponding power normalized precoding matrix V is:

其中，

among them,

为克罗内科乘积运算，α为功率因子。 For another example, the precoding matrix W in the codebook may be composed of horizontally and vertically precoding vectors.

For Kroneco product operation, α is the power factor.

可选的，在实施步骤1001的过程中，第二通信设备根据第一通信设备发送的参考信号，从码本中选择预编码矩阵的方法包括：第二通信设备根据所述参考信号，得到信道估计，基于预定义的准则，例如信道容量或者吞吐量最大化的准则或者弦距最小化准则，从所述码本中选择预编码矩阵。基于预定义的准则选择预编码矩阵为现有技术，在此不赘述。Optionally, in the process of implementing step 1001, the method for selecting, by the second communications device, the precoding matrix from the codebook according to the reference signal sent by the first communications device comprises: obtaining, by the second communications device, the channel according to the reference signal It is estimated that a precoding matrix is selected from the codebook based on predefined criteria, such as channel capacity or throughput maximization criteria or chord minimization criteria. The selection of the precoding matrix based on the predefined criteria is prior art and will not be described here.

可选的，在实施步骤1001的过程中，第二通信设备根据第一通信设备发送的参考信号，从码本中选择预编码矩阵的方法包括：根据所述参考信号，从码本子集中选择预编码矩阵。可选的，所述码本子集是预定义的；或者由第二通信设备上报的码本子集。Optionally, in the process of performing step 1001, the method for selecting, by the second communications device, the precoding matrix from the codebook according to the reference signal sent by the first communications device comprises: selecting a pre-selected from the codebook subset according to the reference signal Encoding matrix. Optionally, the codebook subset is predefined; or a codebook subset reported by the second communications device.

可选的，在实施步骤1002的过程中，所述第二通信设备向所述第一通信设备发送所述预编码矩阵对应的预编码矩阵指示PMI，所述PMI用于指示所述第一通信设备确定对应的预编码矩阵，一种可选的方法包括：所述向基站发送预编码矩阵指示PMI，包括向基站发送预编码矩阵指示PMI,所述PMI可以只包含一个具体取值，此时，所述PMI直接指示预编码矩阵W，例如，共有256个不同的预编码矩阵，则可以用PMI＝0，…，255分别指示标号为0，1，…255的预编码矩阵W；Optionally, in the process of performing step 1002, the second communications device sends, to the first communications device, a precoding matrix indicating PMI corresponding to the precoding matrix, where the PMI is used to indicate the first communications. The device determines the corresponding precoding matrix, and the method includes: sending the precoding matrix indication PMI to the base station, and sending the precoding matrix indication PMI to the base station, where the PMI may only include one specific value. The PMI directly indicates the precoding matrix W. For example, if there are 256 different precoding matrices, the precoding matrix W with labels 0, 1, . . . 255 may be indicated by PMI=0, . . . , 255, respectively;

另一种可选的方法包括，向第一通信设备发送预编码矩阵指示PMI₁和PMI₂。进一步地，所述预编码矩阵指示PMI₁和PMI₂可能具有不同的时间域或者频域颗粒度；或者PMI₁和PMI₂分别表示不同的周期或者带宽的信道特性,或者基于不同的子帧周期或者子带大小得到。进一步地,所述预编码矩阵指示PMI₁，和PMI₂可以以不同的时间周期向第一通信设备发送。Another optional method includes transmitting a precoding matrix indication PMI ₁ and PMI ₂ to the first communication device. Further, the precoding matrix indicates that PMI ₁ and PMI ₂ may have different time domains or frequency domain granularity; or PMI ₁ and PMI ₂ respectively represent channel characteristics of different periods or bandwidths, or based on different subframe periods. Or the subband size is obtained. Further, the precoding matrix indicates that PMI ₁ and PMI ₂ may be transmitted to the first communication device in different time periods.

可选的，所述向第一通信设备发送预编码矩阵指示PMI,可以是第二通信设备通过物理上行控制信道(Physical Uplink Control Channel，PUCCH)或者物理上行共享信道(Physical Uplink Shared Channel，PUSCH)向第一通信设备发送预编码矩阵指示PMI。Optionally, the sending, by the first communication device, the precoding matrix indication PMI, where the second communication device is a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) To the first A communication device transmits a precoding matrix indicating PMI.

在具体的实施过程中，码本中预编码矩阵对应的波束的方向和波束的发射功率相关，具体的相关方式可以与具体的应用场景相关。例如，结合图4的场景以及实施例4中对图4的场景的说明，第一基站401的码本中至少包括第一预编码矩阵W₁和第二预编码矩阵W₂，所述第一预编码矩阵对应的波束的垂直方向倾角，小于所述第二预编码矩阵对应的波束的垂直方向倾角，所述第一预编码矩阵对应的波束的发射功率小于所述第二预编码矩阵对应的波束的发射功率。更具体的，第一预编码矩阵W₁的相位对应于其对应波束的方向，W₁的功率因子对应其对应波束的发射功率；第二预编码矩阵W₂的相位对应于其对应波束的方向，W₂的功率因子对应其对应波束的发射功率。根据本实施例提出的方法，不仅可以达到实施例2中降低发射功率、减小小区重叠区域干扰功率的效果，还可以结合现有的根据预编码矩阵选择波束的方法进行实现，具有广泛的应用前景。In a specific implementation process, the direction of the beam corresponding to the precoding matrix in the codebook is related to the transmit power of the beam, and the specific related manner may be related to a specific application scenario. For example, in conjunction with the scenario of FIG. 4 and the description of the scenario of FIG. 4 in Embodiment 4, the codebook of the first base station 401 includes at least a first precoding matrix W ₁ and a second precoding matrix W ₂ , the first The vertical direction tilt angle of the beam corresponding to the precoding matrix is smaller than the vertical direction tilt angle of the beam corresponding to the second precoding matrix, and the transmit power of the beam corresponding to the first precoding matrix is smaller than the corresponding one of the second precoding matrix The transmit power of the beam. More specifically, the phase of the first precoding matrix W ₁ corresponds to the direction of its corresponding beam, the power factor of W ₁ corresponds to the transmission power of its corresponding beam; the phase of the second precoding matrix W ₂ corresponds to the direction of its corresponding beam The power factor of W ₂ corresponds to the transmit power of its corresponding beam. The method provided in this embodiment can not only achieve the effect of reducing the transmit power and reducing the interference power of the cell overlap region in Embodiment 2, but also can be implemented by combining the existing method for selecting a beam according to the precoding matrix, and has a wide application. prospect.

又例如，结合图7的场景以及实施例5中对图7的场景的说明，形成第一扇区的基站的码本中至少包括第一预编码矩阵W₁和第二预编码矩阵W₂，所述第一预编码矩阵对应的波束的水平方向角度，小于所述第二预编码矩阵对应的波束的水平方向角度，所述第一预编码矩阵对应的波束的发射功率小于所述第二预编码矩阵对应的波束的发射功率。更具体的，第一预编码矩阵W₁的相位对应于其对应波束的方向，W₁的功率因子对应其对应波束的发射功率；第二预编码矩阵W₂的相位对应于其对应波束的方向，W₂的功率因子对应其对应波束的发射功率。根据本实施例提出的方法，不仅可以达到实施例3中降低发射功率、减小小区重叠区域干扰功率的效果，还可以结合现有的根据预编码矩阵选择波束的方法进行实现，具有广泛的应用前景。 As another example, the scene in conjunction with FIG. 7 and described in Example 5 of the scenario of FIG. 7 embodiment, the codebook is formed a first base station sector includes at least a first precoding matrix W ₁ and second precoding matrix W _2, The horizontal direction angle of the beam corresponding to the first precoding matrix is smaller than the horizontal direction angle of the beam corresponding to the second precoding matrix, and the transmit power of the beam corresponding to the first precoding matrix is smaller than the second pre The transmit power of the beam corresponding to the coding matrix. More specifically, the phase of the first precoding matrix W ₁ corresponds to the direction of its corresponding beam, the power factor of W ₁ corresponds to the transmission power of its corresponding beam; the phase of the second precoding matrix W ₂ corresponds to the direction of its corresponding beam The power factor of W ₂ corresponds to the transmit power of its corresponding beam. The method provided in this embodiment can not only achieve the effect of reducing the transmit power and reducing the interference power of the cell overlap region in Embodiment 3, but also can be implemented by combining the existing method for selecting a beam according to the precoding matrix, and has a wide application. prospect.

Claims

一种发射信号的方法，其特征在于，包括：A method of transmitting a signal, comprising:

基站确定波束的方向和所述波束的发射功率；The base station determines the direction of the beam and the transmit power of the beam;

所述基站根据所述波束的发射功率，在所述波束的方向上发射信号；Transmitting, by the base station, a signal in a direction of the beam according to a transmit power of the beam;

其中，所述波束至少包括第一波束和第二波束，其中所述第一波束的发射功率小于所述第二波束的发射功率；The beam includes at least a first beam and a second beam, where a transmit power of the first beam is smaller than a transmit power of the second beam;

其中，所述第一波束的方向指向不同小区重叠覆盖的区域；The direction of the first beam points to an area covered by overlapping of different cells;

其中，所述第二波束的方向不指向不同小区重叠覆盖的区域。The direction of the second beam does not point to an area overlapped by different cells.
根据权利要求1所述的方法，其特征在于，所述不同小区重叠覆盖的区域包括：The method according to claim 1, wherein the overlapping coverage area of the different cells comprises:

垂直方向倾角小于预设阈值的波束所对应的区域；An area corresponding to a beam whose vertical inclination is smaller than a preset threshold;

其中，波束的方向包括垂直方向倾角，所述垂直方向倾角具体为波束的主瓣方向与所述波束的主瓣方向在水平面的投影的夹角。The direction of the beam includes a vertical tilt angle, which is specifically an angle between a main lobe direction of the beam and a projection of the main lobe direction of the beam at a horizontal plane.
根据权利要求1或2所述的方法，其特征在于，所述基站根据所述波束的方向，确定所述波束的发射功率。The method according to claim 1 or 2, wherein the base station determines the transmit power of the beam according to the direction of the beam.
根据权利要求3所述的方法，其特征在于，所述基站根据所述波束的方向，确定所述波束的发射功率包括：The method according to claim 3, wherein the determining, by the base station, the transmit power of the beam according to the direction of the beam comprises:

所述基站根据波束的方向，设定所述波束对应的发射功率值；或者Setting, by the base station, a transmit power value corresponding to the beam according to a direction of the beam; or

所述基站根据波束的方向，设置所述波束的发射功率相对于参考功率值的比值；或者The base station sets a ratio of a transmit power of the beam to a reference power value according to a direction of the beam; or

所述基站根据波束的方向，设置所述波束的发射功率相对于参考功率值的衰减值；或者 The base station sets an attenuation value of the transmit power of the beam relative to a reference power value according to a direction of the beam; or

所述基站根据波束的方向，设置所述波束的发射功率相对于参考功率值的增量值。The base station sets an increment value of the transmit power of the beam with respect to a reference power value according to a direction of the beam.
一种发射信号的装置，其特征在于，包括处理器和收发器，其中：A device for transmitting a signal, comprising a processor and a transceiver, wherein:

所述处理器用于确定波束的方向和所述波束的发射功率；The processor is configured to determine a direction of a beam and a transmit power of the beam;

所述收发器用于根据所述波束的发射功率，在所述波束的方向上发射信号；The transceiver is configured to transmit a signal in a direction of the beam according to a transmit power of the beam;

其中，所述波束至少包括第一波束和第二波束，其中所述第一波束的发射功率小于所述第二波束的发射功率；The beam includes at least a first beam and a second beam, where a transmit power of the first beam is smaller than a transmit power of the second beam;

其中，所述第一波束的方向指向不同小区重叠覆盖的区域；The direction of the first beam points to an area covered by overlapping of different cells;

其中，所述第二波束的方向不指向不同小区重叠覆盖的区域。The direction of the second beam does not point to an area overlapped by different cells.
根据权利要求5所述的装置，其特征在于，所述不同小区重叠覆盖的区域包括：The apparatus according to claim 5, wherein the overlapping coverage area of the different cells comprises:

垂直方向倾角小于预设阈值的波束所对应的区域；An area corresponding to a beam whose vertical inclination is smaller than a preset threshold;

其中，波束的方向包括垂直方向倾角，所述垂直方向倾角具体为波束的主瓣方向与所述波束的主瓣方向在水平面的投影的夹角。The direction of the beam includes a vertical tilt angle, which is specifically an angle between a main lobe direction of the beam and a projection of the main lobe direction of the beam at a horizontal plane.
根据权利要求5或6所述的装置，其特征在于，所述处理器用于，根据所述波束的方向，确定所述波束的发射功率。The apparatus according to claim 5 or 6, wherein the processor is configured to determine a transmit power of the beam according to a direction of the beam.
根据权利要求7所述的装置，其特征在于，所述处理器用于根据所述波束的方向，确定所述波束的发射功率包括：The apparatus according to claim 7, wherein the determining, by the processor, the transmit power of the beam according to a direction of the beam comprises:

所述处理器用于根据波束的方向，设定所述波束对应的发射功率值；或者The processor is configured to set a transmit power value corresponding to the beam according to a direction of the beam; or

所述处理器用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的比值；或者The processor is configured to set a transmit power of the beam relative to a reference according to a direction of the beam Ratio of power values; or

所述处理器用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的衰减值；或者The processor is configured to set, according to a direction of the beam, an attenuation value of the transmit power of the beam relative to a reference power value; or

所述处理器用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的增量值。The processor is configured to set an increment value of a transmit power of the beam relative to a reference power value according to a direction of the beam.
一种发射信号的装置，其特征在于，包括：A device for transmitting a signal, comprising:

确定模块，用于确定波束的方向和波束的发射功率；a determining module for determining a direction of the beam and a transmit power of the beam;

发射模块，用于根据所述波束的反射功率，在所述波束的方向上发射信号；a transmitting module, configured to transmit a signal in a direction of the beam according to a reflected power of the beam;

其中，所述波束至少包括第一波束和第二波束，其中所述第一波束的发射功率小于所述第二波束的发射功率；The beam includes at least a first beam and a second beam, where a transmit power of the first beam is smaller than a transmit power of the second beam;

其中，所述第一波束的方向指向不同小区重叠覆盖的区域；The direction of the first beam points to an area covered by overlapping of different cells;

其中，所述第二波束的方向不指向不同小区重叠覆盖的区域。The direction of the second beam does not point to an area overlapped by different cells.
根据权利要求9所述的装置，其特征在于，所述不同小区重叠覆盖的区域包括：The apparatus according to claim 9, wherein the overlapping coverage area of the different cells comprises:

垂直方向倾角小于预设阈值的波束所对应的区域；An area corresponding to a beam whose vertical inclination is smaller than a preset threshold;

其中，波束的方向包括垂直方向倾角，所述垂直方向倾角具体为波束的主瓣方向与所述波束的主瓣方向在水平面的投影的夹角。The direction of the beam includes a vertical tilt angle, which is specifically an angle between a main lobe direction of the beam and a projection of the main lobe direction of the beam at a horizontal plane.
根据权利要求9或10所述的装置，其特征在于，所述确定模块用于，根据所述波束的方向，确定所述波束的发射功率。The apparatus according to claim 9 or 10, wherein the determining module is configured to determine a transmit power of the beam according to a direction of the beam.
根据权利要求11所述的装置，其特征在于，所述确定模块用于，根据所述波束的方向，确定所述波束的发射功率包括： The apparatus according to claim 11, wherein the determining module is configured to determine, according to a direction of the beam, a transmit power of the beam, including:

所述确定模块用于根据波束的方向，设定所述波束对应的发射功率值；或者The determining module is configured to set a transmit power value corresponding to the beam according to a direction of the beam; or

所述确定模块用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的比值；或者The determining module is configured to set a ratio of a transmit power of the beam to a reference power value according to a direction of the beam; or

所述确定模块用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的衰减值；或者The determining module is configured to set, according to a direction of the beam, an attenuation value of the transmit power of the beam relative to a reference power value; or

所述确定模块用于根据波束的方向，设置所述波束的发射功率相对于参考功率值的增量值。 The determining module is configured to set an increment value of a transmit power of the beam relative to a reference power value according to a direction of the beam.