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 communication field, in particular to a data transmission method and device.
背景技术Background technique
无线通信系统中，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 a wireless communication system, before a base station transmits downlink data to a user equipment (User Equipment, UE), the base station first determines resource blocks ( Resource Block, RB), rank (RANK) value and modulation and coding scheme (Modulation and Coding Scheme, MCS), and then calculate the transmission block (Transport block, TB) that needs to be used for transmitting downlink data according to the RB allocated by the MCS and the base station. The channel state information may be channel state information received by the base station in a current Transmission Time Interval (Transmission Time Interval, TTI) or a filter value of multiple channel state information received within several 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 receives CSI periodically or aperiodically, there is a time delay between the measurement time when the user equipment measures the CSI, the time when the base station receives the CSI, and the time when the base station transmits downlink data. For example, as shown in FIG. 1 Shown, time T is the measurement time when the user equipment measures CSI, time T+N is the receiving time when the base station receives CSI, time T+N+n is the transmission time when the base station transmits downlink data, and N is the time when the user equipment measures CSI and will The time delay of transmitting the measured CSI to the base station, and the n is the time delay of scheduling RBs according to the CSI measured at time T when the base station transmits downlink data. At time T+N+n, the utilization rate of RB scheduled by the user equipment according to the CSI measured at this time T may be low, and the delayed CSI cannot accurately reflect the same-channel interference of the downlink transmission channel currently transmitting downlink data Therefore, the base station cannot accurately determine the RANK value and MCS that need to be used to transmit downlink data. Therefore, when the base station uses the inaccurate MCS and the TB calculated by the allocated RB to transmit downlink data, the efficiency of downlink data transmission is low.
发明内容Contents 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 device, 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 the 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；The first base station acquires the scheduling information of the UE in the first cell, the scheduling information of the second cell, the reference signal received power RSRP of the first cell measured by the UE, and the RSRP of the second cell, the second cell 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, the signal and 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；The first base station acquires an average value of predicted SINR values of RBs allocated to 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 and coding scheme MCS and a RANK value according to the average value of the predicted SINR value;
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 scheduling information of the UE, a transport block TB to be used for transmitting 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；The obtaining unit is configured for the first base station to obtain the scheduling information of the user equipment UE in the first cell, the scheduling information of the second cell, the reference signal received power RSRP of the first cell measured by the UE, and the reference signal reception power of 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 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, the signal sum 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 predicted SINR values of RBs allocated to 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 the MCS and RANK values of the modulation and coding scheme according to the average value of the SINR prediction value;
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 a transport block TB to be used for transmitting downlink data to the UE according to the RANK value, the MCS, and the scheduling information of the UE;
发送单元，用于向所述UE传输下行数据。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 between said first base station and a second base station, and a transceiver,
所述存储器，用于存储程序代码；The memory is used to store program codes;
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 for the first base station to obtain the scheduling information of the user equipment UE in the first cell, obtain the scheduling information of the second cell through the interface, and obtain the second measured by the UE through the transceiver. The reference signal received power RSRP of a cell and the RSRP of the second cell, 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 belongs to the first base station, and the second cell belongs to a 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 call the program code stored in the memory to execute the following method: according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the scheduling information of the second cell The RSRP calculates the signal-to-interference-plus-noise ratio SINR prediction value of each RB allocated to 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 executed by the processor further includes: acquiring an average value of predicted SINR values of RBs allocated to 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 executed by the processor further includes: obtaining the modulation and coding scheme MCS and RANK values according to the average value of the SINR prediction value;
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 executed by the processor further includes: determining a transmission block TB to be used for transmitting downlink data to the UE according to the RANK value, the MCS, and the scheduling information of the UE, and sending the transmission block TB to the UE through the transceiver transmit 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 Receiving Power，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系统吞吐率。Embodiments of the present invention provide a data transmission method and device. Compared with the prior art, according to the scheduling information of the UE in the first cell, the scheduling information of the second cell adjacent to the first cell registered by the UE, the first The reference signal receiving power (Reference Signal Receiving Power, RSRP) of the cell and the RSRP of the second cell obtain the average value of the SINR prediction value of the RB allocated for the UE, and then obtain the RANK value and the obtained SINR value according to the average value of the SINR prediction value. The MCS corresponding to the average value of the SINR prediction value, and finally determine the TB that needs to be used to transmit downlink data to the UE according to the RANK value, the MCS, and the scheduling information, and transmit downlink data to the UE, thereby improving The base station calculates the accuracy of the SINR value of the UE scheduled in the first cell, which further improves the accuracy of selecting the MCS according to the SINR value, the efficiency of transmitting downlink data, and the throughput of the wireless communication system.
附图说明Description of 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 technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1为现有技术提供一种数据传输示意图；Fig. 1 provides a schematic diagram of data transmission for 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 provided by 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 flow chart of another data transmission method provided by 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 provided by 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 ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection 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系统中的基站，所述无线通信系统可以是长期演进(Long Term Evolution，LTE)系统或者是LTE的后续演进。The data transmission method and device of the present invention are based on a base station in a wireless communication system, and the wireless communication system may be a Long Term Evolution (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：An embodiment of the present invention provides a data transmission method, which is applied to a base station, as shown in FIG. 2 , including:
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 obtains scheduling information of the UE in the first cell, scheduling information of the second cell, RSRP of the first cell measured by the UE, and 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 the resource block RB allocated to the UE of the first cell and the RB allocated to the neighboring cell, the first cell is the cell registered by the UE, and the second cell is the cell registered by the second cell. A neighboring cell of a cell, the first cell belongs to the first base station, and the second cell belongs to the 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 each RB allocated to the UE 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 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 obtains an average value of predicted SINR values of RBs allocated to 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 the average value of the predicted SINR 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 the MCS corresponding to the average value of the predicted SINR values according to the 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 the TB to be used for transmitting downlink data to the UE according to the RANK value, the MCS and the scheduling information of the UE, and transmits the 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系统吞吐率。Compared with the prior art, according to the scheduling information of the UE in the first cell, the scheduling information of the second cell adjacent to the first cell registered by the UE, the RSRP of the first cell, and the RSRP of the second cell, the UE is allocated The average value of the predicted SINR value of the RB, and then obtain the RANK value and the MCS corresponding to the average value of the predicted SINR value according to the average value of the predicted SINR value, and finally according to the RANK value, the MCS and the The scheduling information determines the TB that needs to be used to transmit downlink data to the UE, and transmits downlink data to the UE, thereby improving the accuracy of the base station in calculating the SINR value of the UE scheduled in the first cell, and further improving the selection of the MCS based on the SINR value. Accuracy, efficiency of transmitting downlink data, and 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 the first base station, as shown in FIG. 3 , including:
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, instructs the UE to perform the same-frequency A3 measurement event, and obtains the CSI fed back by the UE. The CSI includes a channel quality indicator (Channel Quality Indicator, CQI), a precoding matrix indicator (Precoding Matrix Indicator, PMI) and a rank indicator (Rank Indication, RI). Wherein, the maximum value of the RSRP threshold value may be 15 decibels (dB), and the minimum value of the RSRP threshold value 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(ResourceElement，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, the second cell belongs to the second base station, 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 base station A cell may be a cell of the same base station or a cell of different base stations. The RSRP is one of the key parameters that can represent the wireless signal strength and physical layer measurement requirements in the LTE wireless communication network, and is received on all resource elements (ResourceElement, RE) that carry reference signals in a certain symbol (symbol) The average value 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 an intra-frequency A3 measurement event, where the CSI includes CQI and RI.
步骤2003、第一基站根据CSI为UE分配RB。Step 2003, the first base station allocates RBs to 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(3rdGeneration 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 can determine how many corresponding number of RBs to allocate to the UE according to the CQI, RI reported by the UE and the amount of data to be scheduled by the UE, referring to the 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) protocol 36.213. Wherein, any one of type0, type1 and type2 can be used to allocate RBs.
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 obtains the RB allocated by the second base station for 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 acquire the RB allocated by the second base station for the neighboring cell through a non-standard transmission interface, and can simultaneously acquire RBs of multiple second cells 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是否相同。Step 2005, the first base station judges whether the RB allocated to the second cell is the same as the RB allocated to 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 RBs allocated for the second cell are the same as the RBs allocated for the UE, and the RBs allocated for the second cell have downlink data transmission, according to the downlink transmission channel of the second cell, the The interference calculation of the UE is the predicted SINR value of each RB allocated to 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 RBs allocated for the second cell are different from the RBs allocated for the UE, and the RBs allocated for the second cell have no downlink data transmission, send a message to the UE according to the reference signal of the second cell Calculate the predicted SINR value of each RB allocated to the UE, and perform step 2007.
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。Step 2006, the first base station calculates the UE allocated to the UE 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 through a first formula. SINR prediction value of RB.
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 at the same time, the UE of the first cell transmits data for the first cell If data is transmitted on the RB allocated by the UE of the cell, the downlink transmission channel of the second cell interferes with the UE of the first cell, and the RSRP of the second cell j can be ignored.
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kj取1，所述第一公式可以为：Specifically, when the RB with the number i allocated to the second cell j is the same as the RB with the number i allocated to the UE, then kj is 1, and 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RSRPSerCell表示所述第一小区的RSRP，所述RSRPj表示所述第二小区j的RSRP，所述kj表示是否为所述第二小区j分配所述编号为i的RB，所述kjRSRPj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 the RB with the number i assigned to the UE, the RSRPSerCell represents the RSRP of the first cell, the RSRPj represents the RSRP of the second cell j, and the kj represents Whether to allocate the RB with number i to the second cell j, the kj RSRPj represents interference to the UE from the downlink transmission channel of the second cell j, 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 the UE allocated to the UE 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 through a second formula. SINR prediction value of RB.
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 transmits data on the RB allocated for the UE If no data is transmitted on the RB allocated by the second cell, the RSRP of the second cell interferes with the UE in 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kj取0，所述第二公式可以为：Specifically, when the RB with the number i allocated to the second cell j is different from the RB with the number i allocated to the UE, then kj 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RSRPSerCell表示所述第一小区的RSRP，所述RSRPj表示所述第二小区j的RSRP，所述kj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-kj)RSRPj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 the RB with the number i assigned to the UE, the RSRPSerCell represents the RSRP of the first cell, the RSRPj represents the RSRP of the second cell j, and the kj represents Whether to allocate the RB with number i to the second cell j, the β represents the interference coefficient of the reference signal of the second cell j, and the β(1-kj )RSRPj represents the second The reference signal of cell j interferes with the UE, and the N represents 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 obtains the average value of the predicted SINR values of the RBs allocated to 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，The average value of the SINR prediction values of the RBs allocated to the UE may be obtained through a third formula,
所述第三公式为：The third formula is:
其中，所述SINRi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。Wherein, the SINRi represents the predicted SINR value of the RB number i allocated to the UE, and the N represents the 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 through the fourth formula. The fourth formula is:
当kj取1时，第四公式中的1-kj为0，从而β∑(1-kj)RSRPj为0，即所述第二小区j的RSRP可以忽略不计。当kj取0时，第四公式中的∑kjRSRPj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 kj is 1, 1-kj in the fourth formula is 0, so βΣ(1-kj )RSRPj is 0, that is, the RSRP of the second cell j is negligible. When kj is 0, Σkj RSRPj in the fourth formula is 0, that is, the RSRP of the second cell j interferes with 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。Step 2009, the first base station acquires the MCS corresponding to the average value of the predicted SINR values according to the correspondence between SINR and 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 judges whether the average value of the predicted SINR 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，执行步骤2011；If the average value of the predicted SINR value is greater than the preset SINR threshold value, execute step 2011;
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 predicted SINR values is smaller than the preset SINR threshold value, step 2012 is executed.
步骤2011、第一基站获取RI取2的RANK值。Step 2011, the first base station acquires a RANK value with 2 as the RI.
步骤2012、第一基站获取RI取1的RANK值。Step 2012, the first base station obtains the RANK value with 1 as the RI.
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 mapped by the TB at the physical layer. Specifically, for the mapping relationship, reference may be made to the 36.211 protocol of the 3GPP.
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 is set to 2 to indicate that the first base station can transmit two layers of TBs carrying data. When the average value of the predicted SINR value is greater than the preset SINR threshold value, the quality of the downlink transmission channel from the first base station to the UE in the first cell is good, and multi-layer TBs carrying data can be transmitted simultaneously, and the data is mutually There will be no interference between them. In this way, when the first base station obtains a RANK value of 2 for RI, the 2-layer TB carrying data is transmitted according to the RANK value of 2 for the RI, which can effectively improve spectrum efficiency.
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 set to 1 is used to indicate that the first base station can transmit a layer of TB carrying data. When the average value of the predicted SINR value is less than the preset SINR threshold value, the quality of the downlink transmission channel from the first base station to the UE in 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 resource blocks carrying data in multiple layers, 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 the TB to be used for transmitting downlink data to the UE according to the RANK value, the MCS and the scheduling information, and transmits the downlink data to the UE.
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, according to the RANK value defined in the protocol, the MCS and the TBS index table, look up the table to determine the transmission block TB that needs to be used to transmit the downlink data to the UE, and transmit the 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系统吞吐率。Compared with the prior art, according to the scheduling information of the UE in the first cell, the scheduling information of the second cell adjacent to the first cell registered by the UE, the RSRP of the first cell, and the RSRP of the second cell, the UE is allocated The average value of the predicted SINR value of the RB, and then obtain the RANK value and the MCS corresponding to the average value of the predicted SINR value according to the average value of the predicted SINR value, and finally according to the RANK value, the MCS and the The scheduling information determines the TB that needs to be used to transmit downlink data to the UE, and transmits downlink data to the UE, thereby improving the accuracy of the base station in calculating the SINR value of the UE scheduled in the first cell, and further improving the selection of the MCS based on the SINR value. Accuracy, efficiency of transmitting downlink 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：An 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 obtaining unit 301 is configured for the first base station to obtain the scheduling information of the user equipment UE in the first cell, the scheduling information of the second cell, the 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 belonging 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；A processing unit 302, configured to calculate the signal of each RB allocated to the UE 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 Predicted value of SINR compared to interference plus noise;
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 obtain an average value of predicted SINR values of RBs allocated to 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 the modulation and coding scheme MCS and RANK values according to the average value of the SINR prediction value;
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 the scheduling information of the UE, a transport block TB to be used for transmitting 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.
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系统吞吐率。Compared with the prior art, according to the scheduling information of the UE in the first cell, the scheduling information of the second cell adjacent to the first cell registered by the UE, the RSRP of the first cell, and the RSRP of the second cell, the UE is allocated The average value of the predicted SINR value of the RB, and then obtain the RANK value and the MCS corresponding to the average value of the predicted SINR value according to the average value of the predicted SINR value, and finally according to the RANK value, the MCS and the The scheduling information determines the TB that needs to be used to transmit downlink data to the UE, and transmits downlink data to the UE, thereby improving the accuracy of the base station in calculating the SINR value of the UE scheduled in the first cell, and further improving the selection of the MCS based on the SINR value. Accuracy, efficiency of transmitting downlink data, and throughput of wireless communication systems.
所述处理单元302具体用于：The processing unit 302 is specifically used for:
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 RBs allocated to the second cell are the same as the RBs allocated to the UE, and the RBs allocated to the second cell have downlink data transmission, according to the downlink transmission channel of the second cell, the The interference calculation of the UE is the predicted SINR value of each RB allocated to the UE.
所述处理单元302具体用于：The processing unit 302 is specifically used for:
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，Calculate the predicted SINR value of each RB allocated to the UE by using a first formula 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 ,
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RSRPSerCell表示所述第一小区的RSRP，所述RSRPj表示所述第二小区j的RSRP，所述kj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kj取1，若没有为所述第二小区j分配所述编号为i的RB则kj取0，所述kjRSRPj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 the RB with the number i assigned to the UE, the RSRPSerCell represents the RSRP of the first cell, the RSRPj represents the RSRP of the second cell j, and the kj represents Whether to allocate the RB with the number i to the second cell j, if the RB with the number i is allocated to the second cell j, then kj takes 1, and if the RB with the number i is not allocated to the second cell j For the RB numbered i, kj is 0, the kj RSRPj represents interference to the UE from the downlink transmission channel of the second cell j, and the N represents thermal noise.
所述处理单元302具体用于：The processing unit 302 is specifically used for:
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 RBs allocated to the second cell are different from the RBs allocated to the UE, and the RBs allocated to the second cell have no downlink data transmission, the UE is assigned a reference signal according to the second cell The interference of is calculated as the predicted SINR value of each RB allocated to the UE.
所述处理单元302具体用于：The processing unit 302 is specifically used for:
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，Calculate the predicted SINR value of each RB allocated to the UE by using a second formula 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 ,
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RSRPSerCell表示所述第一小区的RSRP，所述RSRPj表示所述第二小区j的RSRP，所述kj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kj取1，若没有为所述第二小区j分配所述编号为i的RB则kj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-kj)RSRPj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 the RB with the number i assigned to the UE, the RSRPSerCell represents the RSRP of the first cell, the RSRPj represents the RSRP of the second cell j, and the kj represents Whether to allocate the RB with the number i to the second cell j, if the RB with the number i is allocated to the second cell j, then kj takes 1, and if the RB with the number i is not allocated to the second cell j For the RB numbered i, kj is 0, the β represents the interference coefficient of the reference signal of the second cell j, and the β(1-kj )RSRPj represents the reference signal of the second cell j For interference to the UE, the N represents thermal noise.
所述处理单元302具体用于：The processing unit 302 is specifically used for:
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 the average value of the SINR prediction values of the RBs allocated to the UE by using a third formula,
所述第三公式为：The third formula is:
其中，所述SINRi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。Wherein, the SINRi represents the predicted SINR value of the RB number i allocated to the UE, and the N represents the total number of RBs allocated to the UE.
所述获取单元301具体用于：The acquiring unit 301 is specifically used for:
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 the 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 through 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 the RSRP of the first cell and the RSRP of the neighboring cell fed back by the UE according to an intra-frequency A3 measurement event.
所述处理单元302具体用于：The processing unit 302 is specifically used for:
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；Judging whether the average value of the predicted SINR 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，获取秩指示RI取2的RANK值；If the average value of the predicted SINR value is greater than the preset SINR threshold value, acquire a RANK value whose rank indicator 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 predicted SINR value is smaller than the preset SINR threshold value, a RANK value whose rank indicator RI is 1 is acquired.
本发明实施例提供一种第一基站40，如图5所示，包括：An 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 used to store program codes;
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、通过所述接口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 for the first base station to obtain the scheduling information of the user equipment UE in the first cell, obtain the scheduling information of the second cell through the interface 403, and obtain the UE measured information through the transceiver 404. The reference signal received power RSRP of the first cell and the RSRP of the second cell, the first cell is a cell registered by the UE, the second cell is a neighboring cell of the first cell, the 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 call the program code stored in the memory to execute the following method: according to the scheduling information of the UE, the scheduling information of the second cell, the RSRP of the first cell, and the second cell The RSRP calculation is the signal-to-interference-plus-noise ratio SINR prediction value of each RB allocated to 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 executed by the processor 402 further includes: obtaining an average value of predicted SINR values of RBs allocated to 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 executed by the processor 402 further includes: obtaining the modulation and coding scheme MCS and RANK values according to the average value of the SINR prediction value;
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 executed by the processor 402 further includes: determining a transport block TB to be used for transmitting downlink data to the UE according to the RANK value, the MCS, and the scheduling information of the UE, and sending the transmission block TB to the UE through the transceiver. The UE transmits downlink data.
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系统吞吐率。Compared with the prior art, according to the scheduling information of the UE in the first cell, the scheduling information of the second cell adjacent to the first cell registered by the UE, the RSRP of the first cell, and the RSRP of the second cell, the UE is allocated The average value of the predicted SINR value of the RB, and then obtain the RANK value and the MCS corresponding to the average value of the predicted SINR value according to the average value of the predicted SINR value, and finally according to the RANK value, the MCS and the The scheduling information determines the TB that needs to be used to transmit downlink data to the UE, and transmits downlink data to the UE, thereby improving the accuracy of the base station in calculating the SINR value of the UE scheduled in the first cell, and further improving the selection of the MCS based on the SINR value. Accuracy, efficiency of transmitting downlink data, and throughput of wireless communication systems.
所述处理器402执行的方法还包括：The method executed by the processor 402 also includes:
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 RBs allocated to the second cell are the same as the RBs allocated to the UE, and the RBs allocated to the second cell have downlink data transmission, according to the downlink transmission channel of the second cell, the The interference calculation of the UE is the predicted SINR value of each RB allocated to the UE.
所述处理器402执行的方法包括：The method performed by the processor 402 includes:
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，Calculate the predicted SINR value of each RB allocated to the UE by using a first formula 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 ,
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RSRPSerCell表示所述第一小区的RSRP，所述RSRPj表示所述第二小区j的RSRP，所述kj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kj取1，若没有为所述第二小区j分配所述编号为i的RB则kj取0，所述kjRSRPj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 the RB with the number i assigned to the UE, the RSRPSerCell represents the RSRP of the first cell, the RSRPj represents the RSRP of the second cell j, and the kj represents Whether to allocate the RB with the number i to the second cell j, if the RB with the number i is allocated to the second cell j, then kj takes 1, and if the RB with the number i is not allocated to the second cell j For the RB numbered i, kj is 0, the kj RSRPj represents interference to the UE from the downlink transmission channel of the second cell j, and the N represents thermal noise.
所述处理器402执行的方法包括：The method performed by the processor 402 includes:
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 RBs allocated to the second cell are different from the RBs allocated to the UE, and the RBs allocated to the second cell have no downlink data transmission, the UE is assigned a reference signal according to the second cell The interference of is calculated as the predicted SINR value of each RB allocated to the UE.
所述处理器402执行的方法包括：The method executed by the processor 402 includes:
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，Calculate the predicted SINR value of each RB allocated to the UE by using a second formula 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 ,
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RSRPSerCell表示所述第一小区的RSRP，所述RSRPj表示所述第二小区j的RSRP，所述kj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kj取1，若没有为所述第二小区j分配所述编号为i的RB则kj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-kj)RSRPj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 the RB with the number i assigned to the UE, the RSRPSerCell represents the RSRP of the first cell, the RSRPj represents the RSRP of the second cell j, and the kj represents Whether to allocate the RB with the number i to the second cell j, if the RB with the number i is allocated to the second cell j, then kj takes 1, and if the RB with the number i is not allocated to the second cell j For the RB numbered i, kj is 0, the β represents the interference coefficient of the reference signal of the second cell j, and the β(1-kj )RSRPj represents the reference signal of the second cell j For interference to the UE, the N represents thermal noise.
所述处理器402执行的方法包括：The method executed by the processor 402 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 the average value of the SINR prediction values of the RBs allocated to the UE by using a third formula,
所述第三公式为：The third formula is:
其中，所述SINRi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。Wherein, the SINRi represents the predicted SINR value of the RB number i allocated to the UE, and the N represents the total number of RBs allocated to the UE.
所述处理器402执行的方法包括：The method executed 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 the 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 through 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 the RSRP of the first cell and the RSRP of the neighboring cell fed back by the UE according to an intra-frequency A3 measurement event.
所述处理器402执行的方法包括：The method executed by the processor 402 includes:
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；Judging whether the average value of the predicted SINR 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，获取秩指示RI取2的RANK值；If the average value of the predicted SINR value is greater than the preset SINR threshold value, acquire a RANK value whose rank indicator 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 predicted SINR value is smaller than the preset SINR threshold value, a RANK value whose rank indicator RI is 1 is acquired.
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。Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described devices and units can refer to the corresponding process in the foregoing method embodiments, and details are not repeated here.
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系统，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 in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this 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 each embodiment of the present invention may be integrated into one processing unit, each unit may be physically included separately, or two or more units may be integrated into one unit. The above-mentioned integrated units 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。Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes. The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/075055WO2016149923A1 (en) | 2015-03-25 | 2015-03-25 | Data transmission method and device |
| Publication Number | Publication Date |
|---|---|
| CN107006019A CN107006019A (en) | 2017-08-01 |
| CN107006019Btrue CN107006019B (en) | 2019-10-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580064704.8AActiveCN107006019B (en) | 2015-03-25 | 2015-03-25 | A data transmission method and device |
| Country | Link |
|---|---|
| CN (1) | CN107006019B (en) |
| WO (1) | WO2016149923A1 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851843B (en)* | 2017-02-23 | 2020-05-15 | 安科讯(福建)科技有限公司 | Resource scheduling method and system |
| CN109819455B (en)* | 2017-11-20 | 2021-02-26 | 中国移动通信集团公司 | Uplink order selection method, user terminal and base station |
| CN110167061B (en)* | 2019-07-11 | 2021-10-15 | 成都中科微信息技术研究院有限公司 | Base station and system for detecting interference caused by radio station |
| CN115776693B (en)* | 2021-09-06 | 2025-09-05 | 中国移动通信集团吉林有限公司 | Secondary carrier adding method, device and electronic device |
| CN115882975B (en)* | 2021-09-29 | 2024-05-24 | 中国移动通信集团山东有限公司 | Channel adjustment method, device, network equipment and storage medium |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103181097A (en)* | 2010-09-29 | 2013-06-26 | Lg电子株式会社 | Method and apparatus for efficient feedback in wireless communication system that supports multiple antennas |
| CN103718635A (en)* | 2013-03-14 | 2014-04-09 | 华为技术有限公司 | Method used for scheduling user device and base station |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9084119B2 (en)* | 2009-01-07 | 2015-07-14 | Qualcomm Incorporated | Carrier reuse in a multicarrier wireless communication environment |
| CN101572948B (en)* | 2009-06-09 | 2011-05-04 | 华为技术有限公司 | Uplink scheduling method in wireless communication system, base station and wireless communication system |
| CN102036393B (en)* | 2009-09-28 | 2014-07-23 | 电信科学技术研究院 | Method and equipment for determining multi-cell channel information |
| CN103297181B (en)* | 2012-03-02 | 2017-04-12 | 华为技术有限公司 | Information transmission method and device |
| KR101799475B1 (en)* | 2013-03-11 | 2017-11-20 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Method and apparatus for data transmission |
| CN103281770B (en)* | 2013-06-27 | 2015-06-10 | 电子科技大学 | Method for achieving collaborative multipoint transmission dispatch and power distribution |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103181097A (en)* | 2010-09-29 | 2013-06-26 | Lg电子株式会社 | Method and apparatus for efficient feedback in wireless communication system that supports multiple antennas |
| CN103718635A (en)* | 2013-03-14 | 2014-04-09 | 华为技术有限公司 | Method used for scheduling user device and base station |
| Publication number | Publication date |
|---|---|
| CN107006019A (en) | 2017-08-01 |
| WO2016149923A1 (en) | 2016-09-29 |
| Publication | Publication Date | Title |
|---|---|---|
| KR101548577B1 (en) | Method, device, and system for reporting channel quality indicator | |
| CN104396296B (en) | Data transmission method, device and user equipment | |
| EP2863565B1 (en) | Method, user equipment, and system for feeding channel state information back | |
| EP2770770A1 (en) | Interference measurement signalling notification, interference measurement and feedback method and device thereof | |
| CN107006019B (en) | A data transmission method and device | |
| EP2858284B1 (en) | Channel quality indicator acquisition method, user equipment, and evolved node b and system | |
| CN107148763B (en) | Channel State Information (CSI) reporting for carrier aggregation | |
| CN105745985B (en) | A kind of method and device of Adaptive Modulation and Coding | |
| CN103718635B (en) | Method and base station for scheduling user equipment | |
| CN104662953B (en) | The feedback method and device of channel state information | |
| CN103582141A (en) | Reference signal transmission method, user device and network-side device | |
| WO2016161871A1 (en) | Method, user terminal, base station, and system for reporting channel state information | |
| CN106888062A (en) | CQI estimation, SINR determination method and related equipment | |
| CN103491523A (en) | CSI-RS information providing method and communication terminal | |
| CN109121218A (en) | A kind of data transmission method, device, base station and user equipment | |
| CN108352925A (en) | It is a kind of transmission or receiving channel state information CSI method, terminal and base station | |
| JP6037058B2 (en) | Method and apparatus for data transmission | |
| CN103797880B (en) | A kind of transfer control method, apparatus and system | |
| CN103650610A (en) | Method and device for data transmission | |
| WO2013170640A1 (en) | Uplink transmission parameter selection method and device | |
| EP3383116B1 (en) | Channel state information (csi) receiving method and network access equipment | |
| CN110855330B (en) | Transmission method and device | |
| EP4224951A1 (en) | Sidelink data transmission method and related apparatus | |
| WO2015188876A1 (en) | Network assisted interference cancellation and suppression for cqi reports in communication network | |
| WO2013152666A1 (en) | Method and device for link adaptive control |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |