WO2016149923A1

WO2016149923A1 - Data transmission method and device

Info

Publication number: WO2016149923A1
Application number: PCT/CN2015/075055
Authority: WO
Inventors: 王昭
Original assignee: 华为技术有限公司
Priority date: 2015-03-25
Filing date: 2015-03-25
Publication date: 2016-09-29
Also published as: CN107006019A; CN107006019B

Abstract

Embodiments of the present invention provide a data transmission method and device, which relate to the field of communications and can effectively improve the efficiency of downlink data transmission. A first base station acquires dispatching information of a user equipment (UE) in a first cell, dispatching information of the UE in a second cell, reference signal received power (RSRP), measured by the UE, of the first cell and RSRP, measured by the UE, of the second cell (101); the first base station calculates, according to the dispatching information of the UE, the dispatching information in the second cell and the RSRP of the first cell and the second cell, a signal-to-interference-plus-noise ratio (SINR) predicted value of each resource block (RB) allocated for the UE; the first base station acquires an average value of the SINR predicted values of the RB allocated for the UE; the first base station acquires, according to the average value of the SINR predicted values, a modulation and coding scheme (MCS) and a RANK value; and the first base station determines, according to the RANK value, the MCS and the dispatching information of the UE, a transport block (TB) needed to be used for transmitting downlink data to the UE and transmits the downlink data to the UE. The data transmission method and device are used for transmitting data.

Description

一种数据传输方法及装置Data transmission method and device

技术领域Technical field

本发明涉及通信领域，尤其涉及一种数据传输方法及装置。The present invention relates to the field of communications, and in particular, to a data transmission method and apparatus.

背景技术Background technique

无线通信***中，基站向用户设备(User Equipment，UE)传输下行数据之前，基站先根据接收到的用户设备反馈的信道状态信息(Channel State Information，CSI)确定传输下行数据需要使用的资源块(Resource Block，RB)、秩(RANK)值和调制编码方式(Modulation and Coding Scheme，MCS)，再根据所述MCS和基站分配的RB计算传输下行数据需要使用的传输块(Transport block，TB)。所述信道状态信息可以是基站当前传输时间间隔(Transmission Time Interval，TTI)接收到的信道状态信息或者若干TTI内接收到的多个信道状态信息的滤波值。In the wireless communication system, before the base station transmits the downlink data to the user equipment (User Equipment, UE), the base station first determines, according to the channel state information (CSI) fed back by the user equipment, the resource block that needs to be used for transmitting the downlink data ( A Resource Block (RB), a Rank (RANK) value, and a Modulation and Coding Scheme (MCS) are used to calculate a Transport Block (TB) to be used for transmitting downlink data according to the MCS and the RB allocated by the base station. The channel state information may be channel state information received by a current transmission time interval (TTI) of the base station or a filtered value of multiple channel state information received within a plurality of TTIs.

但是，无论基站周期性接收CSI或非周期性接收CSI，用户设备测量CSI的测量时刻、基站接收CSI的接收时刻与基站传输下行数据的传输时刻之间存在时延，示例的，如图1所示，时刻T为用户设备测量CSI的测量时刻，时刻T+N为基站接收CSI的接收时刻，时刻T+N+n为基站传输下行数据的传输时刻，所述N为用户设备测量CSI和将测量得到的CSI传输至基站的时延，所述n为基站传输下行数据时根据在时刻T测量得到的CSI调度RB的时延。在时刻T+N+n，用户设备根据在该时刻T测量得到的CSI调度的RB的利用率可能较低，则时延后的CSI不能准确反映当前传输下行数据的下行传输信道的同频干扰状态，从而基站无法准确确定传输下行数据需要使用的RANK值和MCS，因此，基站采用不准确的MCS和分配的RB计算得到的TB传输下行数据时，导致传输下行数据的效率较低。However, regardless of whether the base station periodically receives the CSI or receives the CSI periodically, there is a delay between the measurement time of the CSI measured by the user equipment, the reception time of the CSI received by the base station, and the transmission time of the downlink data transmitted by the base station. For example, as shown in FIG. The time T is the measurement time of the CSI measured by the user equipment, the time T+N is the reception time of the CSI received by the base station, the time T+N+n is the transmission time of the downlink data transmitted by the base station, and the N is the CSI and the measurement of the user equipment. The measured delay of the CSI transmitted to the base station, where n is the delay of the CSI scheduling RB according to the CSI measured at the time T when the base station transmits the downlink data. At time T+N+n, the utilization rate of the RB scheduled by the user equipment according to the CSI measured at the time T may be low, and the CSI after the delay cannot accurately reflect the co-channel interference of the downlink transmission channel currently transmitting the downlink data. The eNB can not accurately determine the RANK value and the MCS to be used for transmitting the downlink data. Therefore, when the TB transmits the downlink data by using the inaccurate MCS and the allocated RB, the efficiency of transmitting the downlink data is low.

发明内容 Summary of the invention

本发明的实施例提供一种数据传输方法及装置，能够有效提高传输下行数据的效率。Embodiments of the present invention provide a data transmission method and apparatus, which can effectively improve the efficiency of transmitting downlink data.

为达到上述目的，本发明的实施例采用如下技术方案：In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

第一方面，提供一种数据传输方法，包括：In a first aspect, a data transmission method is provided, including:

第一基站获取用户设备UE在第一小区的调度信息、第二小区的调度信息、所述UE测量的所述第一小区的参考信号接收功率RSRP以及所述第二小区的RSRP，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站；Obtaining, by the first base station, scheduling information of the user equipment UE in the first cell, scheduling information of the second cell, reference signal received power RSRP of the first cell measured by the UE, and RSRP of the second cell, where a cell is a cell registered by the UE, the second cell is a neighboring cell of the first cell, the first cell belongs to the first base station, and the second cell belongs to a second base station;

所述第一基站根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的信号与干扰加噪声比SINR预测值；The first base station calculates, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a signal of each RB allocated by the UE. Interference plus noise ratio SINR prediction value;

所述第一基站获取为所述UE分配的RB的SINR预测值的平均值；Obtaining, by the first base station, an average value of SINR prediction values of RBs allocated for the UE;

所述第一基站根据所述SINR预测值的平均值获取调制编码方式MCS和RANK值；The first base station acquires a modulation coding mode MCS and a RANK value according to an average value of the SINR prediction values;

所述第一基站根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的传输块TB，向所述UE传输下行数据。The first base station determines, according to the RANK value, the MCS, and the scheduling information of the UE, a transport block TB that needs to be used to transmit downlink data to the UE, and transmits downlink data to the UE.

第二方面，提供一种第一基站，包括：In a second aspect, a first base station is provided, including:

获取单元，用于第一基站获取用户设备UE在第一小区的调度信息、第二小区的调度信息、所述UE测量的所述第一小区的参考信号接收功率RSRP以及所述第二小区的RSRP，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站；An acquiring unit, configured to acquire, by the first base station, scheduling information of the user equipment UE in the first cell, scheduling information of the second cell, reference signal received power RSRP of the first cell measured by the UE, and the second cell RSRP, the first cell is a cell registered by the UE, the second cell is a neighboring cell of the first cell, the first cell belongs to the first base station, and the second cell belongs to Second base station;

处理单元，用于根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的信号与干扰加噪声比SINR预测值；a processing unit, configured to calculate, according to scheduling information of the UE, scheduling information of the second cell, an RSRP of the first cell, and an RSRP of the second cell, a signal of each RB allocated to the UE Interference plus noise ratio SINR prediction value;

所述处理单元还用于获取为所述UE分配的RB的SINR预测值的平均值；The processing unit is further configured to acquire an SINR predicted value of the RB allocated to the UE. average value;

所述处理单元还用于根据所述SINR预测值的平均值获取调制编码方式MCS和RANK值；The processing unit is further configured to obtain a modulation coding mode MCS and a RANK value according to an average value of the SINR prediction values;

所述确定单元还用于根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的传输块TB；The determining unit is further configured to determine, according to the RANK value, the MCS, and scheduling information of the UE, a transport block TB that needs to be used to transmit downlink data to the UE;

发送单元，用于向所述UE传输下行数据。And a sending unit, configured to transmit downlink data to the UE.

第三方面，提供一种第一基站，包括：In a third aspect, a first base station is provided, including:

存储器、处理器、所述第一基站与第二基站之间的接口和收发器，a memory, a processor, an interface and a transceiver between the first base station and the second base station,

所述存储器，用于存储程序代码；The memory is configured to store program code;

所述处理器，用于第一基站获取用户设备UE在第一小区的调度信息、通过所述接口获取所述第二小区的调度信息、通过所述收发器获取所述UE测量的所述第一小区的参考信号接收功率RSRP以及所述第二小区的RSRP，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站；The processor is configured to acquire, by the first base station, scheduling information of the user equipment UE in the first cell, acquire scheduling information of the second cell by using the interface, and acquire, by using the transceiver, the first measurement by the UE a reference signal of a cell receiving power RSRP and a RSRP of the second cell, where the first cell is a cell registered by the UE, the second cell is a neighboring cell of the first cell, and the first cell The first base station belongs to the second base station; the second cell belongs to the second base station;

所述处理器还用于调用所述存储器存储的程序代码执行如下方法：根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的信号与干扰加噪声比SINR预测值；The processor is further configured to invoke the program code stored by the memory to perform a method according to: scheduling information of the UE, scheduling information of the second cell, RSRP of the first cell, and the second cell RSRP calculates a signal to interference plus noise ratio SINR prediction value for each RB allocated by the UE;

所述处理器执行的方法还包括：获取为所述UE分配的RB的SINR预测值的平均值；The method performed by the processor further includes: obtaining an average value of SINR prediction values of RBs allocated for the UE;

所述处理器执行的方法还包括：根据所述SINR预测值的平均值获取调制编码方式MCS和RANK值；The method performed by the processor further includes: obtaining a modulation coding mode MCS and a RANK value according to an average value of the SINR prediction values;

所述处理器执行的方法还包括：根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的传输块TB，通过所述收发器向所述UE传输下行数据。The method performed by the processor further includes: determining, according to the RANK value, the MCS, and scheduling information of the UE, a transport block TB that needs to be used to transmit downlink data to the UE, by using the transceiver to the UE Transfer downlink data.

本发明的实施例提供一种数据传输方法及装置，相对于现有技术，根据UE在第一小区的调度信息、与该UE注册的第一小区相邻的第二小区的调度信息、第一小区的参考信号接收功率(Reference Signal ReceivingPower，RSRP)以及第二小区的RSRP获取为该UE分配的RB的SINR预测值的平均值，再根据所述SINR预测值的平均值获取RANK值和所述SINR预测值的平均值所对应的MCS，最后根据所述RANK值、所述MCS和所述调度信息确定向所述UE传输下行数据需要使用的TB，向所述UE传输下行数据，从而提高基站计算第一小区被调度的UE的SINR值的精度，进一步提高了根据该SINR值选择MCS的准确性、传输下行数据的效率和无线通信***吞吐率。An embodiment of the present invention provides a data transmission method and apparatus, which are adjacent to a first cell registered by a UE according to scheduling information of a UE in a first cell. The scheduling information of the second cell, the reference signal receiving power (RSRP) of the first cell, and the RSRP of the second cell acquire an average value of the SINR prediction values of the RBs allocated to the UE, and then predict according to the SINR. The average value of the value obtains the MCS corresponding to the average value of the RANK value and the SINR prediction value, and finally determines the TB to be used for transmitting the downlink data to the UE according to the RANK value, the MCS, and the scheduling information. The UE transmits the downlink data, thereby improving the accuracy of the base station calculating the SINR value of the UE scheduled by the first cell, and further improving the accuracy of selecting the MCS according to the SINR value, the efficiency of transmitting the downlink data, and the throughput of the wireless communication system.

附图说明DRAWINGS

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

图1为现有技术提供一种数据传输示意图；1 is a schematic diagram of data transmission provided by the prior art;

图2为本发明实施例提供一种数据传输方法流程图；FIG. 2 is a flowchart of a data transmission method according to an embodiment of the present invention;

图3为本发明实施例提供另一种数据传输方法流程图；FIG. 3 is a flowchart of another data transmission method according to an embodiment of the present invention;

图4为本发明实施例提供一种第一基站结构示意图；FIG. 4 is a schematic structural diagram of a first base station according to an embodiment of the present invention;

图5为本发明实施例提供另一种第一基站结构示意图。FIG. 5 is a schematic structural diagram of another first base station according to an 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，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

本发明所述的数据传输方法和装置基于无线通信***中的基站，所述无线通信***可以是长期演进(Long Term Evolution，LTE)***或者是LTE的后续演进。 The data transmission method and apparatus according to the present invention are based on a base station in a wireless communication system, which may be a Long Term Evolution (LTE) system or a subsequent evolution of LTE.

本发明实施例提供一种数据传输方法，应用于基站，如图2所示，包括：The embodiment of the invention provides a data transmission method, which is applied to a base station, as shown in FIG. 2, and includes:

步骤101、第一基站获取UE在第一小区的调度信息、第二小区的调度信息、所述UE测量的所述第一小区的RSRP以及所述第二小区的RSRP。Step 101: The first base station acquires scheduling information of the UE in the first cell, scheduling information of the second cell, an RSRP of the first cell measured by the UE, and an RSRP of the second cell.

所述调度信息至少包括为所述第一小区的UE分配的资源块RB和所述邻区分配的RB，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站。The scheduling information includes at least a resource block RB allocated to the UE of the first cell and an RB allocated by the neighboring cell, where the first cell is a cell registered by the UE, and the second cell is the A neighboring cell of a cell, the first cell belongs to the first base station, and the second cell belongs to a second base station.

步骤102、所述第一基站根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的SINR预测值。Step 102: The first base station calculates, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, each RB allocated to the UE. The predicted value of SINR.

步骤103、所述第一基站获取为所述UE分配的RB的SINR预测值的平均值。Step 103: The first base station acquires an average value of SINR prediction values of RBs allocated for the UE.

步骤104、所述第一基站根据所述SINR预测值的平均值获取MCS和RANK值。Step 104: The first base station acquires MCS and RANK values according to an average value of the SINR prediction values.

所述第一基站根据SINR与MCS的对应关系，获取所述SINR预测值的平均值所对应的MCS。The first base station acquires an MCS corresponding to an average value of the SINR prediction values according to a correspondence between the SINR and the MCS.

步骤105、所述第一基站根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的TB，向所述UE传输下行数据。Step 105: The first base station determines, according to the RANK value, the MCS, and the scheduling information of the UE, a TB that needs to be used to transmit downlink data to the UE, and transmits downlink data to the UE.

相对于现有技术，根据UE在第一小区的调度信息、与该UE注册的第一小区相邻的第二小区的调度信息、第一小区的RSRP以及第二小区的RSRP获取为该UE分配的RB的SINR预测值的平均值，再根据所述SINR预测值的平均值获取RANK值和所述SINR预测值的平均值所对应的MCS，最后根据所述RANK值、所述MCS和所述调度信息确定向所述UE传输下行数据需要使用的TB，向所述UE传输下行数据，从而提高基站计算第一小区被调度的UE的SINR值的精度，进一步提高了根据该SINR值选择MCS的准确性、传输下行数据的效率和无线通信***吞吐率。According to the prior art, the UE is allocated according to scheduling information of the UE in the first cell, scheduling information of the second cell adjacent to the first cell registered by the UE, RSRP of the first cell, and RSRP acquisition of the second cell. And an average value of the SINR prediction values of the RBs, and then acquiring an MCS corresponding to an average value of the RANK value and the SINR prediction value according to an average value of the SINR prediction values, and finally according to the RANK value, the MCS, and the The scheduling information determines the TB to be used for transmitting the downlink data to the UE, and transmits the downlink data to the UE, thereby improving the accuracy of the base station calculating the SINR value of the UE scheduled by the first cell, and further improving the selection of the MCS according to the SINR value. Accuracy, The efficiency of transmitting downlink data and the throughput of wireless communication systems.

本发明实施例提供一种数据传输方法，应用于第一基站，如图3所示，包括：An embodiment of the present invention provides a data transmission method, which is applied to a first base station, as shown in FIG. 3, and includes:

步骤2001、第一基站指示UE执行同频A3测量事件。Step 2001: The first base station instructs the UE to perform an intra-frequency A3 measurement event.

第一基站预先设置同频A3测量事件。当第一小区的RSRP与第二小区的RSRP之差大于预先设置的RSRP门限值时，第一基站触发同频A3测量事件，指示UE执行同频A3测量事件，获取UE反馈的CSI，所述CSI包括信道质量指示(Channel Quality Indicator，CQI)、预编码矩阵指示(Precoding Matrix Indicator，PMI)和秩指示(Rank Indication，RI)。其中，所述RSRP门限值的最大值可以为15分贝(dB)，所述RSRP门限值的最小值可以为-15dB。The first base station presets an intra-frequency A3 measurement event. When the difference between the RSRP of the first cell and the RSRP of the second cell is greater than the preset RSRP threshold, the first base station triggers the same-frequency A3 measurement event, instructing the UE to perform the same-frequency A3 measurement event, and acquiring the CSI fed back by the UE. The CSI includes a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), and a Rank Indication (RI). The maximum value of the RSRP threshold may be 15 decibels (dB), and the minimum value of the RSRP threshold may be -15 dB.

所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区。所述第一小区所属于所述第一基站，所述第二小区所属于第二基站，第一基站与第二基站可以是相同的基站或不同的基站，所述第二小区与所述第一小区可以是同一个基站的小区或者不同基站的小区。所述RSRP是LTE无线通信网络中可以表示无线信号强度的关键参数以及物理层测量需求之一，是在某个符号(symbol)内承载参考信号的所有资源元素(Resource Element，RE)上接收到的参考信号功率的平均值。The first cell is a cell registered by the UE, and the second cell is a neighboring cell of the first cell. The first cell belongs to the first base station, and the second cell belongs to the second base station, and the first base station and the second base station may be the same base station or different base stations, and the second cell and the second A cell may be a cell of the same base station or a cell of a different base station. The RSRP is one of key parameters of the LTE wireless communication network that can represent the strength of the wireless signal and one of the physical layer measurement requirements, and is received on all resource elements (Resource Elements, REs) carrying the reference signal within a symbol. The average of the reference signal power.

步骤2002、第一基站接收UE反馈的CSI。Step 2002: The first base station receives the CSI fed back by the UE.

第一基站通过指示UE执行同频A3测量事件，接收UE反馈的CSI，该CSI包括包括CQI和RI。The first base station receives the CSI fed back by the UE by instructing the UE to perform the same-frequency A3 measurement event, and the CSI includes the CQI and the RI.

步骤2003、第一基站根据CSI为UE分配RB。Step 2003: The first base station allocates an RB for the UE according to the CSI.

第一基站可以根据UE上报的CQI、RI和UE待调度的数据量，参考3GPP(3rd Generation Partnership Project，第三代合作伙伴计划)协议36.213，确定为UE分配多少相应数量的RB。其中，可以采用type0，type1和type2中任意一种分配方式分配RB。The first base station may determine how many corresponding RBs are allocated to the UE according to the 3GPP (3rd Generation Partnership Project) 36.213 according to the CQI, RI, and the amount of data to be scheduled by the UE. The RB may be allocated by using any one of type0, type1, and type2.

步骤2004、第一基站获取第二基站为第二小区分配的RB。Step 2004: The first base station acquires an RB allocated by the second base station to the second cell.

需要说明的是，第一基站可以通过非标准的传输接口获取第二基站为邻区分配的RB，根据不同的算法可以同时获取多个第二小区的RB。It should be noted that the first base station can obtain the second through a non-standard transmission interface. The RBs allocated by the base station to the neighboring cells can acquire the RBs of the multiple second cells at the same time according to different algorithms.

步骤2005、第一基站判断为所述第二小区分配的RB与为所述UE分配的RB是否目同。Step 2005: The first base station determines whether the RB allocated by the second cell is the same as the RB allocated for the UE.

若为所述第二小区分配的RB与为所述UE分配的RB相同，且所述为所述第二小区分配的RB有下行数据传输，根据所述第二小区的下行传输信道对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值，执行步骤2006；If the RB allocated to the second cell is the same as the RB allocated to the UE, and the RB allocated by the second cell has downlink data transmission, according to the downlink transmission channel pair of the second cell The interference of the UE is calculated as the SINR prediction value of each RB allocated by the UE, and step 2006 is performed;

若为所述第二小区分配的RB与为所述UE分配的RB不同，且所述为所述第二小区分配的RB无下行数据传输，根据所述第二小区的参考信号对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值，执行步骤2007。If the RB allocated to the second cell is different from the RB allocated to the UE, and the RB allocated by the second cell has no downlink data transmission, the UE is referenced according to the reference signal of the second cell. The interference is calculated as the SINR prediction value of each RB allocated by the UE, and step 2007 is performed.

步骤2006、第一基站根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第一公式计算为所述UE分配的每个RB的SINR预测值。In step 2006, the first base station calculates, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, SINR prediction values for RBs.

若为所述第二小区分配的RB与为所述UE分配的RB相同，第二小区的UE在为第二小区分配的RB上传输数据，同时，第一小区的UE在为所述第一小区的UE分配的RB上传输数据，则第二小区的下行传输信道对所述第一小区的UE存在干扰，所述第二小区j的RSRP可以忽略不计。If the RB allocated for the second cell is the same as the RB allocated for the UE, the UE of the second cell transmits data on the RB allocated for the second cell, and the UE of the first cell is the first The downlink transmission channel of the second cell has interference to the UE of the first cell, and the RSRP of the second cell j is negligible.

具体的，当为所述第二小区j分配编号为i的RB与为所述UE分配的编号为i的RB相同，则k_j取1，所述第一公式可以为：Specifically, when the RB with the number i is the same as the RB with the number i assigned to the UE, the k _{j is} taken as 1. The first formula may be:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，所述k_jRSRP_j表示所述第二小区j的下行传输信道对所述UE的干扰，所述N表示热噪声。 Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB numbered i is allocated to the second cell j, the k _j RSRP _j represents interference of the downlink transmission channel of the second cell j to the UE, and the N represents thermal noise.

步骤2007、第一基站根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第二公式计算为所述UE分配的每个RB的SINR预测值。Step 2007: The first base station calculates, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a second formula for each of the UEs. SINR prediction values for RBs.

若为所述第二小区分配的RB与为所述UE分配的RB不同，第一小区的UE在为所述第一小区的UE分配的RB上传输数据，但是，第二小区的UE在为第二小区分配的RB上没有传输数据，则第二小区的RSRP对所述第一小区的UE存在干扰。If the RB allocated for the second cell is different from the RB allocated for the UE, the UE of the first cell transmits data on the RB allocated for the UE of the first cell, but the UE of the second cell is If no data is transmitted on the RB allocated by the second cell, the RSRP of the second cell has interference to the UE of the first cell.

具体的，当为所述第二小区j分配所述编号为i的RB与为所述UE分配的编号为i的RB不同，则k_j取0，所述第二公式可以为：Specifically, when the RB with the number i is different from the RB with the number i assigned to the UE, the k _{j is} 0, and the second formula may be:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，所述β表示所述第二小区j的参考信号的干扰系数，所述β(1-k_j)RSRP_j表示所述第二小区j的参考信号对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB numbered i is allocated to the second cell j, the β represents an interference coefficient of a reference signal of the second cell j, and the β(1-k _j )RSRP _j represents the second The interference of the reference signal of cell j to the UE, the N representing thermal noise.

步骤2008、第一基站获取为UE分配的RB的SINR预测值的平均值。Step 2008: The first base station acquires an average value of SINR predicted values of RBs allocated for the UE.

可以通过第三公式获取为所述UE分配的RB的SINR预测值的平均值，An average value of SINR prediction values of RBs allocated for the UE may be obtained by a third formula,

所述第三公式为：The third formula is:

其中，所述SINR_i表示为所述UE分配的编号为i的RB的SINR预测值，所述N表示为所述UE分配的RB的总数。The SINR _i represents an SINR prediction value of an RB numbered i allocated to the UE, and the N represents a total number of RBs allocated to the UE.

需要说明的是，第一公式和第二公式可以通过第四公式得到。所述第四公式为：It should be noted that the first formula and the second formula can be obtained by the fourth formula. The fourth formula is:

当k_j取1时，第四公式中的1-k_j为0，从而β∑(1-k_j)RSRP_j为0，即所述第二小区j的RSRP可以忽略不计。当k_j取0时，第四公式中的∑k_jRSRP_j为0，即所述第二小区j的RSRP对所述第一小区的UE存在干扰。When k _j takes 1, 1-k _j in the fourth formula is 0, so β ∑ (1 - k _j ) RSRP _j is 0, that is, the RSRP of the second cell j is negligible. When k _{j is} 0, ∑k _j RSRP _j in the fourth formula is 0, that is, the RSRP of the second cell j has interference to the UE of the first cell.

步骤2009、第一基站根据SINR与MCS的对应关系，获取所述SINR预测值的平均值所对应的MCS。In step 2009, the first base station acquires the MCS corresponding to the average value of the SINR prediction values according to the correspondence between the SINR and the MCS.

步骤2010、第一基站判断所述SINR预测值的平均值是否大于预先设置的SINR门限值。Step 2010: The first base station determines whether an average value of the SINR prediction value is greater than a preset SINR threshold.

若所述SINR预测值的平均值大于预先设置的SINR门限值，执行步骤2011；If the average value of the SINR prediction value is greater than a preset SINR threshold, step 2011 is performed;

若所述SINR预测值的平均值小于预先设置的SINR门限值，执行步骤2012。If the average value of the SINR prediction value is less than a preset SINR threshold, step 2012 is performed.

步骤2011、第一基站获取RI取2的RANK值。In step 2011, the first base station acquires the RANK value of RI taking 2.

步骤2012、第一基站获取RI取1的RANK值。Step 2012: The first base station acquires a RANK value of RI taking 1.

需要说明的是，RI用于指示TB在物理层映射的层数。具体的，映射关系可以参考3GPP的36.211协议。It should be noted that the RI is used to indicate the number of layers that the TB is mapped in the physical layer. Specifically, the mapping relationship may refer to the 3GPP 36.211 protocol.

示例的，所述RI取2用于指示第一基站可以传输两层携带数据的TB。当所述SINR预测值的平均值大于预先设置的SINR门限值时，第一基站到第一小区的UE的下行传输信道的质量较好，可以同时传输多层携带数据的TB，而且数据相互之间不会产生干扰。这样一来，当第一基站获取到RI取2的RANK值，通过该RI取2的RANK值的指示传输两层携带数据的TB，能够有效提高频谱效率。For example, the RI takes 2 to indicate that the first base station can transmit two layers of TB carrying data. When the average value of the SINR prediction value is greater than a preset SINR threshold, the quality of the downlink transmission channel of the UE from the first base station to the first cell is good, and multiple layers of TB carrying data can be simultaneously transmitted, and the data are mutually There will be no interference between them. In this way, when the first base station acquires the RANK value of the RI 2, and transmits the TB carrying the two layers by using the RANK value indication of 2, the spectrum efficiency can be effectively improved.

所述RI取1用于指示第一基站可以传输一层携带数据的TB。当所述SINR预测值的平均值小于预先设置的SINR门限值时，第一基站到第一小区的UE的下行传输信道的质量较差，第一基站传输一层携带数据的TB，以避免第一基站传输多层携带数据的资源块时数据相互之间产生干扰。The RI takes 1 to indicate that the first base station can transmit a layer of TB carrying data. When the average value of the SINR prediction value is smaller than a preset SINR threshold, the quality of the downlink transmission channel of the UE from the first base station to the first cell is poor, and the first base station transmits a layer of TB carrying data to avoid When the first base station transmits a plurality of resource blocks carrying data, the data interferes with each other.

步骤2013、第一基站根据所述RANK值、所述MCS和所述调度信息确定向所述UE传输下行数据需要使用的TB，向所述UE传输下行数据。Step 2013: The first base station determines, according to the RANK value, the MCS, and the scheduling information, a TB that needs to be used to transmit downlink data to the UE, and transmits the TB to the UE. Lose the data.

第一基站可以根据协议定义的RANK值、MCS和TBS索引表，查表确定向所述UE传输下行数据需要使用的传输块TB，向所述UE传输下行数据。The first base station may determine, according to the RANK value, the MCS, and the TBS index table defined by the protocol, a transport block TB that needs to be used to transmit downlink data to the UE, and transmit downlink data to the UE.

相对于现有技术，根据UE在第一小区的调度信息、与该UE注册的第一小区相邻的第二小区的调度信息、第一小区的RSRP以及第二小区的RSRP获取为该UE分配的RB的SINR预测值的平均值，再根据所述SINR预测值的平均值获取RANK值和所述SINR预测值的平均值所对应的MCS，最后根据所述RANK值、所述MCS和所述调度信息确定向所述UE传输下行数据需要使用的TB，向所述UE传输下行数据，从而提高基站计算第一小区被调度的UE的SINR值的精度，进一步提高了根据该SINR值选择MCS的准确性、传输下行数据的效率和无线通信***吞吐率。According to the prior art, the UE is allocated according to scheduling information of the UE in the first cell, scheduling information of the second cell adjacent to the first cell registered by the UE, RSRP of the first cell, and RSRP acquisition of the second cell. And an average value of the SINR prediction values of the RBs, and then acquiring an MCS corresponding to an average value of the RANK value and the SINR prediction value according to an average value of the SINR prediction values, and finally according to the RANK value, the MCS, and the The scheduling information determines the TB to be used for transmitting the downlink data to the UE, and transmits the downlink data to the UE, thereby improving the accuracy of the base station calculating the SINR value of the UE scheduled by the first cell, and further improving the selection of the MCS according to the SINR value. Accuracy, efficiency of transmitting downstream data, and throughput of wireless communication systems.

本发明实施例提供一种第一基站30，如图4所示，包括：The embodiment of the present invention provides a first base station 30, as shown in FIG. 4, including:

获取单元301，用于第一基站获取用户设备UE在第一小区的调度信息、第二小区的调度信息、所述UE测量的所述第一小区的参考信号接收功率RSRP以及所述第二小区的RSRP，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站；The acquiring unit 301 is configured to acquire, by the first base station, scheduling information of the user equipment UE in the first cell, scheduling information of the second cell, reference signal received power RSRP of the first cell measured by the UE, and the second cell RSRP, the first cell is a cell registered by the UE, the second cell is a neighboring cell of the first cell, the first cell belongs to the first base station, and the second cell belongs to Belong to the second base station;

处理单元302，用于根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的信号与干扰加噪声比SINR预测值；The processing unit 302 is configured to calculate, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a signal for each RB allocated by the UE. SINR predicted value with interference plus noise ratio;

所述处理单元302还用于获取为所述UE分配的RB的SINR预测值的平均值；The processing unit 302 is further configured to acquire an average value of SINR predicted values of RBs allocated for the UE;

所述处理单元302还用于根据所述SINR预测值的平均值获取调制编码方式MCS和RANK值；The processing unit 302 is further configured to obtain a modulation coding mode MCS and a RANK value according to an average value of the SINR prediction values;

所述处理单元302还用于根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的传输块TB； The processing unit 302 is further configured to determine, according to the RANK value, the MCS, and scheduling information of the UE, a transport block TB that needs to be used to transmit downlink data to the UE;

发送单元303，用于向所述UE传输下行数据。The sending unit 303 is configured to transmit downlink data to the UE.

所述处理单元302具体用于：The processing unit 302 is specifically configured to:

当为所述第二小区分配的RB与为所述UE分配的RB相同，且所述为所述第二小区分配的RB有下行数据传输，根据所述第二小区的下行传输信道对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值。When the RB allocated for the second cell is the same as the RB allocated for the UE, and the RB allocated for the second cell has downlink data transmission, according to the downlink transmission channel pair of the second cell The interference of the UE is calculated as the SINR prediction value of each RB allocated by the UE.

根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第一公式计算为所述UE分配的每个RB的SINR预测值，Calculating, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a SINR prediction value of each RB allocated to the UE by using a first formula. ,

所述第一公式为：The first formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述k_jRSRP_j表示所述第二小区j的下行传输信道对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, the k _j RSRP _j represents the interference of the downlink transmission channel of the second cell j to the UE, and the N represents thermal noise.

所述处理单元302具体用于： The processing unit 302 is specifically configured to:

当为所述第二小区分配的RB与为所述UE分配的RB不同，且所述为所述第二小区分配的RB无下行数据传输，根据所述第二小区的参考信号对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值。When the RB allocated for the second cell is different from the RB allocated for the UE, and the RB allocated by the second cell has no downlink data transmission, the UE is referenced according to the reference signal of the second cell. The interference is calculated as the SINR prediction value of each RB allocated by the UE.

根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第二公式计算为所述UE分配的每个RB的SINR预测值，Calculating, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a SINR prediction value of each RB allocated to the UE by using a second formula ,

所述第二公式为：The second formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述β表示所述第二小区j的参考信号的干扰系数，所述β(1-k_j)RSRP_j表示所述第二小区j的参考信号对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, the β represents the interference coefficient of the reference signal of the second cell j, and the β(1-k _j )RSRP _j represents the reference signal of the second cell j For interference to the UE, the N represents thermal noise.

通过第三公式获取为所述UE分配的RB的SINR预测值的平均值，Obtaining an average value of SINR prediction values of RBs allocated for the UE by using a third formula,

所述第三公式为：The third formula is:

所述获取单元301具体用于：The obtaining unit 301 is specifically configured to:

根据接收到的所述UE反馈的信道状态信息CSI确定所述UE的调度信息； Determining scheduling information of the UE according to the received channel state information CSI fed back by the UE;

通过所述第一小区与所述第二小区之间的接口获取所述第二小区的调度信息；Obtaining scheduling information of the second cell by using an interface between the first cell and the second cell;

接收所述UE根据同频A3测量事件反馈的所述第一小区的RSRP以及所述邻区的RSRP。Receiving, by the UE, the RSRP of the first cell and the RSRP of the neighboring cell according to the same frequency A3 measurement event feedback.

判断所述SINR预测值的平均值是否大于预先设置的SINR门限值；Determining whether an average value of the SINR prediction value is greater than a preset SINR threshold value;

若所述SINR预测值的平均值大于预先设置的SINR门限值，获取秩指示RI取2的RANK值；If the average value of the SINR prediction value is greater than a preset SINR threshold value, the RANK value of the acquisition rank indication RI is 2;

若所述SINR预测值的平均值小于预先设置的SINR门限值，获取秩指示RI取1的RANK值。If the average value of the SINR prediction value is smaller than a preset SINR threshold value, the RANK value of the rank indication RI is taken as 1.

本发明实施例提供一种第一基站40，如图5所示，包括：The embodiment of the present invention provides a first base station 40, as shown in FIG. 5, including:

存储器401、处理器402、所述第一基站与第二基站之间的接口403和收发器404，a memory 401, a processor 402, an interface 403 between the first base station and the second base station, and a transceiver 404,

所述存储器401，用于存储程序代码；The memory 401 is configured to store program code;

所述处理器402，用于第一基站获取用户设备UE在第一小区的调度信息、通过所述接403获取所述第二小区的调度信息、通过所述收发器404获取所述UE测量的所述第一小区的参考信号接收功率RSRP以及所述第二小区的RSRP，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站；The processor 402 is configured to acquire, by the first base station, scheduling information of the user equipment UE in the first cell, acquire scheduling information of the second cell by using the connection 403, and acquire, by using the transceiver 404, the UE measurement The reference signal of the first cell receives the power RSRP and the RSRP of the second cell, the first cell is a cell registered by the UE, and the second cell is a neighboring cell of the first cell, The first cell belongs to the first base station, and the second cell belongs to the second base station;

所述处理器402还用于调用所述存储器存储的程序代码执行如下方法：根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的信号与干扰加噪声比SINR预测值；The processor 402 is further configured to invoke the program code stored by the memory to perform a method according to: scheduling information of the UE, scheduling information of the second cell, RSRP of the first cell, and the second cell. RSRP calculates a signal to interference plus noise ratio SINR prediction value for each RB allocated by the UE;

所述处理器402执行的方法还包括：获取为所述UE分配的RB的SINR预测值的平均值；The method performed by the processor 402 further includes: obtaining an average value of SINR prediction values of RBs allocated for the UE;

所述处理器402执行的方法还包括：根据所述SINR预测值的平均值获取调制编码方式MCS和RANK值； The method performed by the processor 402 further includes: obtaining a modulation coding mode MCS and a RANK value according to an average value of the SINR prediction values;

所述处理器402执行的方法还包括：根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的传输块TB，通过所述收发器向所述UE传输下行数据。The method performed by the processor 402 further includes: determining, according to the RANK value, the MCS, and scheduling information of the UE, a transport block TB that needs to be used to transmit downlink data to the UE, by using the transceiver to the The UE transmits downlink data.

所述处理器402执行的方法还包括：The method performed by the processor 402 further includes:

所述处理器402执行的方法包括：The method performed by the processor 402 includes:

所述第一公式为：The first formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述k_jRSRP_j表示所述第二小区j的下行传输信道对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, and the k _j RSRP _j represents the interference of the downlink transport channel of the second cell j to the UE, and the N represents thermal noise.

所述第二公式为：The second formula is:

所述第三公式为：The third formula is:

所述处理器402执行的方法包括： The method performed by the processor 402 includes:

根据接收到的所述UE反馈的信道状态信息CSI确定所述UE的调度信息；Determining scheduling information of the UE according to the received channel state information CSI fed back by the UE;

所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, 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。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。In the several embodiments provided by the present application, it should be understood that the disclosed 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. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. 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包括，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。In addition, each functional unit in various embodiments of the present invention can be integrated in one place In the unit, the units may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。 A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk. The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

一种数据传输方法，其特征在于，包括：A data transmission method, comprising:

第一基站获取用户设备UE在第一小区的调度信息、第二小区的调度信息、所述UE测量的所述第一小区的参考信号接收功率RSRP以及所述第二小区的RSRP，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站；Obtaining, by the first base station, scheduling information of the user equipment UE in the first cell, scheduling information of the second cell, reference signal received power RSRP of the first cell measured by the UE, and RSRP of the second cell, where a cell is a cell registered by the UE, the second cell is a neighboring cell of the first cell, the first cell belongs to the first base station, and the second cell belongs to a second base station;

所述第一基站根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的信号与干扰加噪声比SINR预测值；The first base station calculates, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a signal of each RB allocated by the UE. Interference plus noise ratio SINR prediction value;

所述第一基站获取为所述UE分配的RB的SINR预测值的平均值；Obtaining, by the first base station, an average value of SINR prediction values of RBs allocated for the UE;

所述第一基站根据所述SINR预测值的平均值获取调制编码方式MCS和RANK值；The first base station acquires a modulation coding mode MCS and a RANK value according to an average value of the SINR prediction values;

所述第一基站根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的传输块TB，向所述UE传输下行数据。The first base station determines, according to the RANK value, the MCS, and the scheduling information of the UE, a transport block TB that needs to be used to transmit downlink data to the UE, and transmits downlink data to the UE.
根据权利要求1所述的数据传输方法，其特征在于，所述第一基站根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的SINR预测值包括：The data transmission method according to claim 1, wherein the first base station is configured according to scheduling information of the UE, scheduling information of the second cell, RSRP of the first cell, and the second cell. The RSRP calculation calculates the SINR prediction value for each RB allocated by the UE, including:

当为所述第二小区分配的RB与为所述UE分配的RB相同，且所述为所述第二小区分配的RB有下行数据传输，根据所述第二小区的下行传输信道对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值。When the RB allocated for the second cell is the same as the RB allocated for the UE, and the RB allocated for the second cell has downlink data transmission, according to the downlink transmission channel pair of the second cell The interference of the UE is calculated as the SINR prediction value of each RB allocated by the UE.
根据权利要求2所述的数据传输方法，其特征在于，所述根据所述第二小区的下行传输信道对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值包括：The data transmission method according to claim 2, wherein the calculating the SINR prediction value of each RB allocated to the UE according to the interference of the downlink transmission channel of the second cell to the UE comprises:

根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第一公式计算为所述UE分配的每个RB的SINR预测值，According to scheduling information of the UE, scheduling information of the second cell, and the The RSRP of a cell and the RSRP of the second cell are calculated by the first formula as the predicted value of the SINR of each RB allocated by the UE,

所述第一公式为：The first formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述k_jRSRP_j表示所述第二小区j的下行传输信道对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, the k _j RSRP _j represents the interference of the downlink transmission channel of the second cell j to the UE, and the N represents thermal noise.
根据权利要求1所述的数据传输方法，其特征在于，所述第一基站根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的SINR预测值包括：The data transmission method according to claim 1, wherein the first base station is configured according to scheduling information of the UE, scheduling information of the second cell, RSRP of the first cell, and the second cell. The RSRP calculation calculates the SINR prediction value for each RB allocated by the UE, including:

当为所述第二小区分配的RB与为所述UE分配的RB不同，且所述为所述第二小区分配的RB无下行数据传输，根据所述第二小区的参考信号对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值。When the RB allocated for the second cell is different from the RB allocated for the UE, and the RB allocated by the second cell has no downlink data transmission, the UE is referenced according to the reference signal of the second cell. The interference is calculated as the SINR prediction value of each RB allocated by the UE.
根据权利要求4所述的数据传输方法，其特征在于，所述根据所述第二小区的参考信号对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值包括：The data transmission method according to claim 4, wherein the calculating the SINR prediction value of each RB allocated by the UE according to the reference signal of the second cell to the UE comprises:

根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第二公式计算为所述UE分配的每个RB的SINR预测值，Calculating, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a SINR prediction value of each RB allocated to the UE by using a second formula ,

所述第二公式为：The second formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述 RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述β表示所述第二小区j的参考信号的干扰系数，所述β(1-k_j)RSRP_j表示所述第二小区j的参考信号对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, the β represents the interference coefficient of the reference signal of the second cell j, and the β(1-k _j )RSRP _j represents the reference signal of the second cell j For interference to the UE, the N represents thermal noise.
根据权利要求3或5所述的数据传输方法，其特征在于，所述第一基站获取为所述UE分配的RB的SINR预测值的平均值包括：The data transmission method according to claim 3 or 5, wherein the average value of the SINR prediction values of the RBs allocated by the first base station for the UE includes:

通过第三公式获取为所述UE分配的RB的SINR预测值的平均值，Obtaining an average value of SINR prediction values of RBs allocated for the UE by using a third formula,

所述第三公式为：The third formula is:

其中，所述SINR_i表示为所述UE分配的编号为i的RB的SINR预测值，所述N表示为所述UE分配的RB的总数。The SINR _i represents an SINR prediction value of an RB numbered i allocated to the UE, and the N represents a total number of RBs allocated to the UE.
根据权利要求1、2或4任意一项权利要求所述的数据传输方法，其特征在于，所述第一基站获取用户设备UE在第一小区的调度信息、第二小区的调度信息、第一小区的参考信号接收功率RSRP以及第二小区的RSRP包括：The data transmission method according to any one of claims 1, 2 or 4, wherein the first base station acquires scheduling information of the user equipment UE in the first cell, scheduling information of the second cell, and the first The reference signal received power RSRP of the cell and the RSRP of the second cell include:

根据接收到的所述UE反馈的信道状态信息CSI确定所述UE的调度信息；Determining scheduling information of the UE according to the received channel state information CSI fed back by the UE;

通过所述第一小区与所述第二小区之间的接口获取所述第二小区的调度信息；Obtaining scheduling information of the second cell by using an interface between the first cell and the second cell;

接收所述UE根据同频A3测量事件反馈的所述第一小区的RSRP以及所述第二小区的RSRP。Receiving, by the UE, the RSRP of the first cell and the RSRP of the second cell according to the same frequency A3 measurement event feedback.
根据权利要求1、2或4任意一项权利要求所述的数据传输方法，其特征在于，所述第一基站根据所述SINR预测值的平均值获取RANK值包括： The data transmission method according to any one of claims 1, 2 or 4, wherein the obtaining, by the first base station, the RANK value according to the average value of the SINR prediction values comprises:

判断所述SINR预测值的平均值是否大于预先设置的SINR门限值；Determining whether an average value of the SINR prediction value is greater than a preset SINR threshold value;

若所述SINR预测值的平均值大于预先设置的SINR门限值，获取秩指示RI取2的RANK值；If the average value of the SINR prediction value is greater than a preset SINR threshold value, the RANK value of the acquisition rank indication RI is 2;

若所述SINR预测值的平均值小于预先设置的SINR门限值，获取秩指示RI取1的RANK值。If the average value of the SINR prediction value is smaller than a preset SINR threshold value, the RANK value of the rank indication RI is taken as 1.
一种第一基站，其特征在于，包括：A first base station, comprising:

获取单元，用于第一基站获取用户设备UE在第一小区的调度信息、第二小区的调度信息、所述UE测量的所述第一小区的参考信号接收功率RSRP以及所述第二小区的RSRP，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站；An acquiring unit, configured to acquire, by the first base station, scheduling information of the user equipment UE in the first cell, scheduling information of the second cell, reference signal received power RSRP of the first cell measured by the UE, and the second cell RSRP, the first cell is a cell registered by the UE, the second cell is a neighboring cell of the first cell, the first cell belongs to the first base station, and the second cell belongs to Second base station;

处理单元，用于根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的信号与干扰加噪声比SINR预测值；a processing unit, configured to calculate, according to scheduling information of the UE, scheduling information of the second cell, an RSRP of the first cell, and an RSRP of the second cell, a signal of each RB allocated to the UE Interference plus noise ratio SINR prediction value;

所述处理单元还用于获取为所述UE分配的RB的SINR预测值的平均值；The processing unit is further configured to acquire an average value of SINR prediction values of RBs allocated for the UE;

所述处理单元还用于根据所述SINR预测值的平均值获取调制编码方式MCS和RANK值；The processing unit is further configured to obtain a modulation coding mode MCS and a RANK value according to an average value of the SINR prediction values;

所述处理单元还用于根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的传输块TB；The processing unit is further configured to determine, according to the RANK value, the MCS, and scheduling information of the UE, a transport block TB that needs to be used to transmit downlink data to the UE;

发送单元，用于向所述UE传输下行数据。And a sending unit, configured to transmit downlink data to the UE.
根据权利要求9所述的第一基站，其特征在于，所述处理单元具体用于：The first base station according to claim 9, wherein the processing unit is specifically configured to:

当为所述第二小区分配的RB与为所述UE分配的RB相同，且所述为所述第二小区分配的RB有下行数据传输，根据所述第二小区的下行传输信道对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值。When the RB allocated for the second cell is the same as the RB allocated for the UE, and the RB allocated for the second cell has downlink data transmission, according to the downlink transmission channel pair of the second cell The interference of the UE is calculated as the SINR prediction value of each RB allocated by the UE.
根据权利要求10所述的第一基站，其特征在于，所述处理单元具体用于：The first base station according to claim 10, wherein said The unit is specifically used to:

根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第一公式计算为所述UE分配的每个RB的SINR预测值，Calculating, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a SINR prediction value of each RB allocated to the UE by using a first formula. ,

所述第一公式为：The first formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述k_jRSRP_j表示所述第二小区j的下行传输信道对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, the k _j RSRP _j represents the interference of the downlink transmission channel of the second cell j to the UE, and the N represents thermal noise.
根据权利要求9所述的第一基站，其特征在于，所述处理单元具体用于：The first base station according to claim 9, wherein the processing unit is specifically configured to:

当为所述第二小区分配的RB与为所述UE分配的RB不同，且所述为所述第二小区分配的RB无下行数据传输，根据所述第二小区的参考信号对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值。When the RB allocated for the second cell is different from the RB allocated for the UE, and the RB allocated by the second cell has no downlink data transmission, the UE is referenced according to the reference signal of the second cell. The interference is calculated as the SINR prediction value of each RB allocated by the UE.
根据权利要求12所述的第一基站，其特征在于，所述处理单元具体用于：The first base station according to claim 12, wherein the processing unit is specifically configured to:

根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第二公式计算为所述UE分配的每个RB的SINR预测值，Calculating, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a SINR prediction value of each RB allocated to the UE by using a second formula ,

所述第二公式为：The second formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j 的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述β表示所述第二小区j的参考信号的干扰系数，所述β(1-k_j)RSRP_j表示所述第二小区j的参考信号对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, the β represents the interference coefficient of the reference signal of the second cell j, and the β(1-k _j )RSRP _j represents the reference signal of the second cell j For interference to the UE, the N represents thermal noise.
根据权利要求11或13所述的第一基站，其特征在于，所述处理单元具体用于：The first base station according to claim 11 or 13, wherein the processing unit is specifically configured to:

通过第三公式获取为所述UE分配的RB的SINR预测值的平均值，Obtaining an average value of SINR prediction values of RBs allocated for the UE by using a third formula,

所述第三公式为：The third formula is:

其中，所述SINR_i表示为所述UE分配的编号为i的RB的SINR预测值，所述N表示为所述UE分配的RB的总数。The SINR _i represents an SINR prediction value of an RB numbered i allocated to the UE, and the N represents a total number of RBs allocated to the UE.
根据权利要求9、10或12任意一项权利要求所述的第一基站，其特征在于，所述获取单元具体用于：The first base station according to any one of claims 9, 10 or 12, wherein the obtaining unit is specifically configured to:

根据接收到的所述UE反馈的信道状态信息CSI确定所述UE的调度信息；Determining scheduling information of the UE according to the received channel state information CSI fed back by the UE;

通过所述第一小区与所述第二小区之间的接口获取所述第二小区的调度信息；Obtaining scheduling information of the second cell by using an interface between the first cell and the second cell;

接收所述UE根据同频A3测量事件反馈的所述第一小区的RSRP以及所述第二小区的RSRP。Receiving, by the UE, the RSRP of the first cell and the RSRP of the second cell according to the same frequency A3 measurement event feedback.
根据权利要求9、10或12任意一项权利要求所述的第一基站，其特征在于，所述处理单元具体用于：The first base station according to any one of claims 9, 10 or 12, wherein the processing unit is specifically configured to:

判断所述SINR预测值的平均值是否大于预先设置的SINR门限值；Determining whether an average value of the SINR prediction value is greater than a preset SINR threshold value;

若所述SINR预测值的平均值大于预先设置的SINR门限值，获取秩指示RI取2的RANK值；If the average value of the SINR prediction value is greater than a preset SINR threshold value, the RANK value of the acquisition rank indication RI is 2;

若所述SINR预测值的平均值小于预先设置的SINR门限值，获取秩指示RI取1的RANK值。If the average value of the SINR prediction value is less than a preset SINR threshold value, The RANK value of the rank indication RI takes 1 is obtained.
一种第一基站，其特征在于，包括：A first base station, comprising:

存储器、处理器、所述第一基站与第二基站之间的接口和收发器，a memory, a processor, an interface and a transceiver between the first base station and the second base station,

所述存储器，用于存储程序代码；The memory is configured to store program code;

所述处理器，用于第一基站获取用户设备UE在第一小区的调度信息、通过所述接口获取所述第二小区的调度信息、通过所述收发器获取所述UE测量的所述第一小区的参考信号接收功率RSRP以及所述第二小区的RSRP，所述第一小区为所述UE注册的小区，所述第二小区为所述第一小区的邻区，所述第一小区所属于所述第一基站，所述第二小区所属于第二基站；The processor is configured to acquire, by the first base station, scheduling information of the user equipment UE in the first cell, acquire scheduling information of the second cell by using the interface, and acquire, by using the transceiver, the first measurement by the UE a reference signal of a cell receiving power RSRP and a RSRP of the second cell, where the first cell is a cell registered by the UE, the second cell is a neighboring cell of the first cell, and the first cell The first base station belongs to the second base station; the second cell belongs to the second base station;

所述处理器还用于调用所述存储器存储的程序代码执行如下方法：根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP计算为所述UE分配的每个RB的信号与干扰加噪声比SINR预测值；The processor is further configured to invoke the program code stored by the memory to perform a method according to: scheduling information of the UE, scheduling information of the second cell, RSRP of the first cell, and the second cell RSRP calculates a signal to interference plus noise ratio SINR prediction value for each RB allocated by the UE;

所述处理器执行的方法还包括：获取为所述UE分配的RB的SINR预测值的平均值；The method performed by the processor further includes: obtaining an average value of SINR prediction values of RBs allocated for the UE;

所述处理器执行的方法还包括：根据所述SINR预测值的平均值获取调制编码方式MCS和RANK值；The method performed by the processor further includes: obtaining a modulation coding mode MCS and a RANK value according to an average value of the SINR prediction values;

所述处理器执行的方法还包括：根据所述RANK值、所述MCS和所述UE的调度信息确定向所述UE传输下行数据需要使用的传输块TB，通过所述收发器向所述UE传输下行数据。The method performed by the processor further includes: determining, according to the RANK value, the MCS, and scheduling information of the UE, a transport block TB that needs to be used to transmit downlink data to the UE, by using the transceiver to the UE Transfer downlink data.
根据权利要求17所述的第一基站，其特征在于，所述处理器执行的方法包括：The first base station according to claim 17, wherein the method performed by the processor comprises:

当为所述第二小区分配的RB与为所述UE分配的RB相同，且所述为所述第二小区分配的RB有下行数据传输，根据所述第二小区的下行传输信道对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值。When the RB allocated for the second cell is the same as the RB allocated for the UE, and the RB allocated for the second cell has downlink data transmission, according to the downlink transmission channel pair of the second cell The interference of the UE is calculated as the SINR prediction value of each RB allocated by the UE.
根据权利要求18所述的第一基站，其特征在于，所述处理器执行的方法包括：The first base station according to claim 18, wherein said The methods performed by the processor include:

根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第一公式计算为所述UE分配的每个RB的SINR预测值，Calculating, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a SINR prediction value of each RB allocated to the UE by using a first formula. ,

所述第一公式为：The first formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述k_jRSRP_j表示所述第二小区j的下行传输信道对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, the k _j RSRP _j represents the interference of the downlink transmission channel of the second cell j to the UE, and the N represents thermal noise.
根据权利要求17所述的第一基站，其特征在于，所述处理器执行的方法包括：The first base station according to claim 17, wherein the method performed by the processor comprises:

当为所述第二小区分配的RB与为所述UE分配的RB不同，且所述为所述第二小区分配的RB无下行数据传输，根据所述第二小区的参考信号对所述UE的干扰计算为所述UE分配的每个RB的SINR预测值。When the RB allocated for the second cell is different from the RB allocated for the UE, and the RB allocated by the second cell has no downlink data transmission, the UE is referenced according to the reference signal of the second cell. The interference is calculated as the SINR prediction value of each RB allocated by the UE.
根据权利要求20所述的第一基站，其特征在于，所述处理器执行的方法包括：The first base station according to claim 20, wherein the method performed by the processor comprises:

根据所述UE的调度信息、所述第二小区的调度信息、所述第一小区的RSRP以及所述第二小区的RSRP通过第二公式计算为所述UE分配的每个RB的SINR预测值，Calculating, according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the RSRP of the second cell, a SINR prediction value of each RB allocated to the UE by using a second formula ,

所述第二公式为：The second formula is:

其中，所述i表示为所述UE分配的编号为i的RB，所述RSRP_SerCell表示所述第一小区的RSRP，所述RSRP_j表示所述第二小区j 的RSRP，所述k_j表示是否为所述第二小区j分配所述编号为i的RB，若为所述第二小区j分配所述编号为i的RB则k_j取1，若没有为所述第二小区j分配所述编号为i的RB则k_j取0，所述β表示所述第二小区j的参考信号的干扰系数，所述β(1-k_j)RSRP_j表示所述第二小区j的参考信号对所述UE的干扰，所述N表示热噪声。Wherein, the i represents an RB of the number i allocated to the UE, the RSRP _SerCell represents an RSRP of the first cell, the RSRP _j represents an RSRP of the second cell j, and the k _j represents Whether the RB of the number i is allocated to the second cell j, and if the RB of the number i is allocated to the second cell j, k _{j is} taken as 1, if the second cell j is not allocated The RB numbered i, then k _j takes 0, the β represents the interference coefficient of the reference signal of the second cell j, and the β(1-k _j )RSRP _j represents the reference signal of the second cell j For interference to the UE, the N represents thermal noise.
根据权利要求19或21所述的第一基站，其特征在于，所述处理器执行的方法包括：The first base station according to claim 19 or 21, wherein the method performed by the processor comprises:

通过第三公式获取为所述UE分配的RB的SINR预测值的平均值，Obtaining an average value of SINR prediction values of RBs allocated for the UE by using a third formula,

所述第三公式为：The third formula is:

其中，所述SINR_i表示为所述UE分配的编号为i的RB的SINR预测值，所述N表示为所述UE分配的RB的总数。The SINR _i represents an SINR prediction value of an RB numbered i allocated to the UE, and the N represents a total number of RBs allocated to the UE.
根据权利要求17、18或20任意一项权利要求所述的第一基站，其特征在于，所述处理器执行的方法包括：The first base station according to any one of claims 17, 18 or 20, wherein the method performed by the processor comprises:

根据接收到的所述UE反馈的信道状态信息CSI确定所述UE的调度信息；Determining scheduling information of the UE according to the received channel state information CSI fed back by the UE;

通过所述第一小区与所述第二小区之间的接口获取所述第二小区的调度信息；Obtaining scheduling information of the second cell by using an interface between the first cell and the second cell;

接收所述UE根据同频A3测量事件反馈的所述第一小区的RSRP以及所述第二小区的RSRP。Receiving, by the UE, the RSRP of the first cell and the RSRP of the second cell according to the same frequency A3 measurement event feedback.
根据权利要求17、18或20任意一项权利要求所述的第一基站，其特征在于，所述处理器执行的方法包括：The first base station according to any one of claims 17, 18 or 20, wherein the method performed by the processor comprises:

判断所述SINR预测值的平均值是否大于预先设置的SINR门限值；Determining whether an average value of the SINR prediction value is greater than a preset SINR threshold value;

若所述SINR预测值的平均值大于预先设置的SINR门限值，获取秩指示RI取2的RANK值；If the average value of the SINR prediction value is greater than a preset SINR threshold value, the RANK value of the acquisition rank indication RI is 2;

若所述SINR预测值的平均值小于预先设置的SINR门限值，获取秩指示RI取1的RANK值。 If the average value of the SINR prediction value is less than a preset SINR threshold value, The RANK value of the rank indication RI takes 1 is obtained.