异构网测量、配置、优化方法、宏基站、用户终端及系统Heterogeneous network measurement, configuration, optimization method, macro base station, user terminal and system技术领域Technical field本文涉及通信领域,尤其涉及一种异构网测量方法、测量配置方法、优化方法、宏基站、用户终端及通信系统。This paper relates to the field of communications, and in particular to a heterogeneous network measurement method, a measurement configuration method, an optimization method, a macro base station, a user terminal, and a communication system.
背景技术Background technique在LTE(Long Term Evolution,长期演进)标准及LTE-A(Long Term Evolution-Advanced,增强的长期演进)标准演进中,出现一种异构网,即一个宏小区覆盖范围内再部署多个微小区,宏小区提供广覆盖,微小区用来提高热点区域的吞吐量。在这种组网类型中,微小区的覆盖范围完全在宏小区内,处于微小区覆盖范围内的终端既能接收到宏小区的信号,也能接收到微小区的信号。终端移动时可能会穿梭于多个微小区。而且,这些微小区可以自主地实现随时开启和关闭。这就使得网络环境不稳定。In the evolution of the LTE (Long Term Evolution) standard and the LTE-A (Long Term Evolution-Advanced) standard, a heterogeneous network emerges, that is, multiple micro-cells are deployed in a macro cell coverage area. Zones, macro cells provide wide coverage, and micro cells are used to increase the throughput of hotspots. In this type of networking, the coverage of the micro cell is completely within the macro cell, and the terminal within the coverage of the micro cell can receive both the signal of the macro cell and the signal of the micro cell. When the terminal moves, it may travel through multiple micro cells. Moreover, these microcells can be autonomously turned on and off at any time. This makes the network environment unstable.
在不同组网情况下,对网络配置策略也不尽相同。在同构网组网场景下,由宏小区服务终端,终端移动到相邻宏小区,会造成宏小区之间的切换。而在异构组网场景下,终端进入微小区覆盖范围内,不一定需要进行切换,例如中高速终端(移动速度大于30km/h的终端)不切换,始终由宏小区服务,低速终端(移动速度小于等于30km/h的终端)可根据负荷均衡算法由网络侧决定是否切换。在异构组网场景下,可采用多种技术方案,例如,载波聚合、双连接等。可见,网络需要根据组网情况调整自己的配置,也就是网络需要监测自己的网络部署状况,以便及时优化网络参数和策略。In different networking situations, the network configuration strategy is also different. In a homogeneous network networking scenario, the macro cell serving terminal moves the terminal to the neighboring macro cell, which causes switching between macro cells. In a heterogeneous networking scenario, the terminal does not need to perform handover in the coverage of the micro-area. For example, the medium-high speed terminal (the terminal with a moving speed greater than 30 km/h) does not switch, and is always served by the macro cell, and the low-speed terminal (moving The terminal whose speed is less than or equal to 30km/h can be determined by the network side according to the load balancing algorithm. In a heterogeneous networking scenario, multiple technical solutions are available, such as carrier aggregation, dual connectivity, and the like. It can be seen that the network needs to adjust its configuration according to the networking situation, that is, the network needs to monitor its own network deployment status, so as to optimize network parameters and policies in time.
网络知晓其组网情况有三种方式:第一种是工作人员通过网关等设备进行人工配置,这种方法效率低、不灵活、不易更改;第二种是小区间通过X2接口相互通信,小区在关闭、开启时通知相邻小区,这种方法受限于X2接口的容量,而且不适用无X2接口的场景;第三种是终端自主发现并上报给网络,终端通过测量邻区,将发现的满足条件的邻区测量结果上报给网络侧,继而网络侧得知新增加的邻区。这种方法灵活、且不依赖X2接口。可是,目前,可利用的测量事件有8种,包括:The network knows its networking situation in three ways: The first is that the staff manually configures through the gateway and other devices. This method is inefficient, inflexible, and difficult to change. The second is that the cells communicate with each other through the X2 interface. The neighboring cell is notified when it is turned off or on. This method is limited by the capacity of the X2 interface, and is not applicable to the scenario without the X2 interface. The third is that the terminal independently discovers and reports to the network, and the terminal will discover the neighboring area by measuring the neighboring area. The neighboring area measurement result that meets the condition is reported to the network side, and then the network side knows the newly added neighboring area. This method is flexible and does not rely on the X2 interface. However, at present, there are 8 measurement events available, including:
测量事件A1(服务小区信号好于一定门限);Measuring event A1 (the serving cell signal is better than a certain threshold);
测量事件A2(服务小区信号差于一定门限);Measuring event A2 (the serving cell signal is worse than a certain threshold);
测量事件A3(邻区信号比本小区好于一定偏移);Measuring event A3 (the neighboring cell signal is better than the local cell by a certain offset);
测量事件A4(邻区信号好于一定门限);Measuring event A4 (neighborhood signal is better than a certain threshold);
测量事件A5(本区信号差于一定门限,且邻区信号好于一定门限)Measure event A5 (the signal in this area is worse than a certain threshold, and the signal in the neighboring area is better than a certain threshold)
测量事件A6(邻区信号比辅小区好于一定偏移)Measurement event A6 (neighborhood signal is better than a certain offset from the secondary cell)
测量事件B1(Inter RAT邻区信号好于一定门限)Measurement event B1 (Inter RAT neighbor signal is better than a certain threshold)
测量事件B2(本区信号差于一定门限,且Inter RAT邻区信号好于一定门限)Measure event B2 (the signal in this area is worse than a certain threshold, and the Inter RAT neighbor signal is better than a certain threshold)
当终端位于宏小区和微小区的重叠区域内,且宏小区和微小区都可为其提供服务时,就要求宏小区的信号强度很强,微小区的信号强度也很强。因此,要判断终端是否位于宏小区和微小区的重叠区域内,终端测量到的宏小区的信号强度要高于一定门限,且微小区的信号强度也要高于一定门限。但目前的上述8种测量事件,还没有满足上述条件的测量事件。When the terminal is located in the overlapping area of the macro cell and the micro cell, and both the macro cell and the micro cell can provide services for the terminal, the signal strength of the macro cell is required to be strong, and the signal strength of the micro cell is also strong. Therefore, to determine whether the terminal is located in the overlapping area of the macro cell and the micro cell, the signal strength of the macro cell measured by the terminal is higher than a certain threshold, and the signal strength of the micro cell is also higher than a certain threshold. However, at present, the above eight measurement events have not yet met the measurement events of the above conditions.
发明内容Summary of the invention
本发明实施例提供一种异构网测量方法、测量配置方法、优化方法、宏基站、用户终端及通信系统,以解决现有异构网测量不能自主发现重叠覆盖小区的技术问题。The embodiments of the present invention provide a heterogeneous network measurement method, a measurement configuration method, an optimization method, a macro base station, a user terminal, and a communication system, so as to solve the technical problem that the existing heterogeneous network measurement cannot independently discover overlapping coverage cells.
为解决上述技术问题,本发明实施例提供一种异构网测量配置方法,包括:To solve the above technical problem, an embodiment of the present invention provides a heterogeneous network measurement and configuration method, including:
宏基站为其宏小区下的用户终端配置预设测量对象的测量事件,所述测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;The macro base station configures a measurement event of the preset measurement object for the user terminal in the macro cell, where the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold;
宏基站接收所述用户终端测量到所述测量事件后反馈的测量结果。The macro base station receives the measurement result fed back by the user terminal after measuring the measurement event.
为解决上述技术问题,本发明实施例还提供了一种异构网测量方法,包括:To solve the above technical problem, the embodiment of the present invention further provides a heterogeneous network measurement method, including:
宏小区下的用户终端接收宏基站所配置的预设测量对象的测量事件,所述测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;The user terminal in the macro cell receives the measurement event of the preset measurement object configured by the macro base station, where the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold. ;
所述用户终端对所述预设测量对象进行测量,并在测量到所述测量事件后,将测量结果反馈给所述宏基站。The user terminal measures the preset measurement object, and after measuring the measurement event, feeds back the measurement result to the macro base station.
为解决上述技术问题,本发明实施例还提供了一种异构网测量方法,包括:To solve the above technical problem, the embodiment of the present invention further provides a heterogeneous network measurement method, including:
宏基站为其宏小区下的用户终端配置预设测量对象的测量事件,所述测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;The macro base station configures a measurement event of the preset measurement object for the user terminal in the macro cell, where the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold;
所述用户终端接收宏基站所配置的预设测量对象的测量事件;Receiving, by the user terminal, a measurement event of a preset measurement object configured by the macro base station;
所述用户终端对所述预设测量对象进行测量,并在测量到所述测量事件后,将测量结果反馈给所述宏基站;The user terminal performs measurement on the preset measurement object, and after measuring the measurement event, feeds back the measurement result to the macro base station;
所述宏基站接收所述用户终端反馈的测量结果。The macro base station receives the measurement result fed back by the user terminal.
为解决上述技术问题,本发明实施例还提供了一种异构网优化方法,包括:To solve the above technical problem, the embodiment of the present invention further provides a heterogeneous network optimization method, including:
宏基站为其宏小区下的用户终端配置预设测量对象的测量事件,所述测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;The macro base station configures a measurement event of the preset measurement object for the user terminal in the macro cell, where the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold;
所述用户终端接收宏基站所配置的预设测量对象的测量事件;Receiving, by the user terminal, a measurement event of a preset measurement object configured by the macro base station;
所述用户终端对所述预设测量对象进行测量,并在测量到所述测量事件后,将测量结果反馈给所述宏基站;The user terminal performs measurement on the preset measurement object, and after measuring the measurement event, feeds back the measurement result to the macro base station;
所述宏基站接收所述用户终端反馈的测量结果;Receiving, by the macro base station, a measurement result fed back by the user terminal;
宏基站接收到所述测量结果后进行网络优化处理。The macro base station performs network optimization processing after receiving the measurement result.
在本发明的一种实施例中,所述宏基站进行网络优化处理包括组网方案优化处理、负载均衡优化处理、切换策略优化处理和测量配置优化处理中的至少一种。In an embodiment of the present invention, the macro base station performs network optimization processing including at least one of a networking solution optimization process, a load balancing optimization process, a handover policy optimization process, and a measurement configuration optimization process.
为解决上述技术问题,本发明实施例还提供了一种宏基站,包括测量配置模块和网络监测模块;In order to solve the above technical problem, an embodiment of the present invention further provides a macro base station, including a measurement configuration module and a network monitoring module;
所述测量配置模块设置为为所述宏基站的宏小区下的用户终端配置预设测量对象的测量事件,所述测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;The measurement configuration module is configured to configure a measurement event of a preset measurement object for the user terminal in the macro cell of the macro base station, where the measurement event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro area The signal strength is greater than the second signal strength threshold;
所述网络监测模块设置为接收所述用户终端在测量到所述测量事件后反馈的测量结果。The network monitoring module is configured to receive a measurement result that is feedback by the user terminal after measuring the measurement event.
在本发明的一种实施例中,还包括网络优化模块;In an embodiment of the present invention, a network optimization module is further included;
所述网络监测模块还设置为收到所述测量结果后,发送网络优化通知给所述网络优化模块;The network monitoring module is further configured to: after receiving the measurement result, send a network optimization notification to the network optimization module;
所述网络优化模块设置为接收到所述网络优化通知后,进行网络优化处理。The network optimization module is configured to perform network optimization processing after receiving the network optimization notification.
在本发明的一种实施例中,所述网络优化模块包括组网优化子模块、负载优化子模块、切换优化子模块、测量配置优化子模块中的至少一种;In an embodiment of the present invention, the network optimization module includes at least one of a networking optimization sub-module, a load optimization sub-module, a handover optimization sub-module, and a measurement configuration optimization sub-module;
所述组网优化子模块设置为确定所述宏小区和对应的微小区的组网方案;The networking optimization submodule is configured to determine a networking scheme of the macro cell and the corresponding micro cell;
所述负载优化子模块设置为根据所述组网方案确定负载均衡算法;The load optimization submodule is configured to determine a load balancing algorithm according to the networking scheme;
所述切换优化子模块设置为确定用户终端在每个小区之间的切换策略;The handover optimization submodule is configured to determine a handover policy of the user terminal between each cell;
所述测量配置优化子模块设置为确定用户终端的测量配置。The measurement configuration optimization sub-module is configured to determine a measurement configuration of the user terminal.
为解决上述技术问题,本发明实施例还提供了一种用户终端,包括配置接收模块、测量模块以及发送模块;To solve the above technical problem, an embodiment of the present invention further provides a user terminal, including a configuration receiving module, a measurement module, and a sending module.
所述配置接收模块设置为接收宏基站所配置的预设测量对象的测量事件,所述测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;The configuration receiving module is configured to receive a measurement event of a preset measurement object configured by the macro base station, where the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength Threshold value
所述测量模块设置为对所述预设测量对象进行测量,并在测量到所述测量事件后,将测量结果发送给所述发送模块;The measuring module is configured to perform measurement on the preset measurement object, and after measuring the measurement event, send the measurement result to the sending module;
所述发送模块设置为将所述测量结果反馈给所述宏基站。The transmitting module is configured to feed back the measurement result to the macro base station.
为解决上述技术问题,本发明实施例还提供了一种通信系统,包括宏基站和所述宏基站的宏小区下的用户终端;In order to solve the above technical problem, an embodiment of the present invention further provides a communication system, including a macro base station and a user terminal in a macro cell of the macro base station;
所述宏基站设置为为所述用户终端配置预设测量对象的测量事件,所述测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;以及设置为接收所述用户终端在测量到所述测量事件后反馈的测量结果;The macro base station is configured to configure a measurement event of the preset measurement object for the user terminal, where the measurement event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold And setting to receive a measurement result fed back by the user terminal after measuring the measurement event;
所述用户终端设置为接收所述宏基站所配置的预设测量对象的测量事件,对所述预设测量对象进行测量,并在测量到所述测量事件后,将测量结果反馈给所述宏基站。The user terminal is configured to receive a measurement event of a preset measurement object configured by the macro base station, perform measurement on the preset measurement object, and feed back the measurement result to the macro base after measuring the measurement event station.
为解决上述技术问题,本发明实施例还提供了一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令用于执行上述的方法。In order to solve the above technical problem, an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing method.
本发明实施例的有益效果是:The beneficial effects of the embodiments of the present invention are:
本发明实施例提供的异构网测量方法、测量配置方法、优化方法、宏基站、用户终端及通信系统,宏基站为其宏小区下的用户终端配置预设测量对象的测量事件,该测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;用户终端接收宏基站所配置的预设测量对象的测量事件后,对该预设测量对象进行测量,并在测量到该测量事件后,将测量结果反馈给宏基站。可见,本发明实施例通过宏基站对用户终端测量事件的重新配置,用户终端可以自主发现位于宏小区和微小区的重叠区域,且反馈给宏基站;宏基站可以基于该反馈对网络进行优化处理。The heterogeneous network measurement method, the measurement configuration method, the optimization method, the macro base station, the user terminal, and the communication system provided by the embodiment of the present invention, the macro base station configures a measurement event of the preset measurement object for the user terminal in the macro cell, and the measurement event The measured macrocell signal strength is greater than the first signal strength threshold, and the microcell signal strength is greater than the second signal strength threshold; after the user terminal receives the measurement event of the preset measurement object configured by the macro base station, the preset measurement object is The measurement is performed, and after the measurement event is measured, the measurement result is fed back to the macro base station. It can be seen that, in the embodiment of the present invention, the macro base station reconfigures the measurement event of the user terminal, and the user terminal can independently discover the overlapping area located in the macro cell and the micro cell, and feed back to the macro base station; the macro base station can optimize the network based on the feedback. .
附图概述BRIEF abstract
图1为本发明实施例一提供的异构网测量配置方法流程示意图;1 is a schematic flowchart of a method for measuring and configuring a heterogeneous network according to Embodiment 1 of the present invention;
图2为本发明实施例一提供的异构网测量方法流程示意图;2 is a schematic flowchart of a heterogeneous network measurement method according to Embodiment 1 of the present invention;
图3为本发明实施例一提供的异构网优化方法流程示意图;3 is a schematic flowchart of a heterogeneous network optimization method according to Embodiment 1 of the present invention;
图4为本发明实施例二提供的通信系统结构示意图;4 is a schematic structural diagram of a communication system according to Embodiment 2 of the present invention;
图5为本发明实施例二提供的宏基站结构示意图;FIG. 5 is a schematic structural diagram of a macro base station according to Embodiment 2 of the present invention;
图6为本发明实施例二提供的另一宏基站结构示意图;FIG. 6 is a schematic structural diagram of another macro base station according to Embodiment 2 of the present invention;
图7为本发明实施例二提供的网络优化模块结构示意图;FIG. 7 is a schematic structural diagram of a network optimization module according to Embodiment 2 of the present invention;
图8为本发明实施例二提供的用户终端结构示意图。FIG. 8 is a schematic structural diagram of a user terminal according to Embodiment 2 of the present invention.
本发明的较佳实施方式Preferred embodiment of the invention
下面通过具体实施方式结合附图对本发明作进一步详细说明。The present invention will be further described in detail below with reference to the accompanying drawings.
实施例一:Embodiment 1:
用户终端处于宏小区和微小区的重叠区域,且宏小区和微小区都可为其提供服务时,需要宏小区的信号强度和微小区的信号强度达到一定的阈值。为了使用户终端自主发现上述情况,本实施例提供了一种新的测量事件,该测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;本实施例中的第一信号强度阈值和第二信号强度阈值可以根据实际应用场景(或网络环境等)设定;其设定原则和取值范围可以采用现有协议中的约定的原则和取值范围。基于上述设定的新的测量事件,本实施例中对异构网测量配置的过程请参见图1所示,包括:When the user terminal is in the overlapping area of the macro cell and the micro cell, and the macro cell and the micro cell can provide services for the macro cell, the signal strength of the macro cell and the signal strength of the micro cell reach a certain threshold. In order to enable the user terminal to discover the above situation autonomously, the embodiment provides a new measurement event, where the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold. The first signal strength threshold and the second signal strength threshold in this embodiment may be set according to an actual application scenario (or a network environment, etc.); the setting principle and the value range may adopt the agreed principles in the existing protocol and Ranges. Based on the new measurement event, the process of measuring the configuration of the heterogeneous network in this embodiment is shown in Figure 1.
步骤101:宏基站为其宏小区下的用户终端配置预设测量对象(即预设测量频点)的测量事件,测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;Step 101: The macro base station configures a measurement event of a preset measurement object (that is, a preset measurement frequency point) for the user terminal in the macro cell, and the measurement event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell The signal strength is greater than the second signal strength threshold;
步骤102:宏基站接收用户终端测量到测量事件后反馈的测量结果。Step 102: The macro base station receives the measurement result that is feedback after the user terminal measures the measurement event.
本实施例中用户终端对异构网测量的过程请参见图2所示,包括:For the process of measuring the heterogeneous network by the user terminal in this embodiment, refer to FIG. 2, which includes:
步骤201:宏小区下的用户终端接收宏基站所配置的预设测量对象的测量事件,该测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;Step 201: The user terminal in the macro cell receives the measurement event of the preset measurement object configured by the macro base station, where the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal. Intensity threshold
步骤202:用户终端对该预设测量对象进行测量,并在测量到测量事件后(也即测量到宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值后),将测量结果反馈给宏基站。Step 202: The user terminal performs measurement on the preset measurement object, and after measuring the measurement event (that is, the measured signal strength of the macro cell is greater than the first signal strength threshold, the signal strength of the micro cell is large.After the second signal strength threshold, the measurement result is fed back to the macro base station.
本实施例中,宏基站在收到用户终端测量到测量事件后反馈的测量结果后,还可对网络进行优化处理。该完整过程请参见图3所示,包括:In this embodiment, after receiving the measurement result fed back by the user terminal after measuring the measurement event, the macro base station may further optimize the network. The complete process is shown in Figure 3, including:
步骤301:宏基站为其宏小区下的用户终端配置预设测量对象的测量事件,所测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;Step 301: The macro base station configures a measurement event of the preset measurement object for the user terminal in the macro cell, and the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength. Threshold value
步骤302:用户终端接收宏基站所配置的预设测量对象的测量事件;Step 302: The user terminal receives a measurement event of a preset measurement object configured by the macro base station.
步骤303:用户终端对预设测量对象进行测量,并在测量到测量事件后,将测量结果反馈给宏基站;Step 303: The user terminal performs measurement on the preset measurement object, and after measuring the measurement event, returns the measurement result to the macro base station;
步骤304:宏基站接收用户终端反馈的测量结果;Step 304: The macro base station receives the measurement result fed back by the user terminal.
步骤305:宏基站接收到测量结果后进行网络优化处理。Step 305: The macro base station performs network optimization processing after receiving the measurement result.
上述步骤305中,宏基站进行网络优化处理包括组网方案优化处理、负载均衡优化处理、切换策略优化处理和测量配置优化处理中的至少一种。其中,组网方案优化处理时可结合预设测量对象是否与宏基站所使用的频点相同,以及宏小区和对应的微小区(该微小区为触发上述测量事件的小区)之间的回程线路(backhaul)的情况选定的组网方案,组网方案可选用增强的小区间干扰协调eICIC方案、同频双连接方案、异频双连接方案、载波聚合方案等等。负载均衡优化可根据组网方式选择对应的负载均衡优化算法,例如eICIC方案可根据小区负荷调整几乎空白子帧ABS的比例等。In the foregoing step 305, the macro base station performs network optimization processing including at least one of a networking solution optimization process, a load balancing optimization process, a handover policy optimization process, and a measurement configuration optimization process. The networking solution optimization process may be combined with whether the preset measurement object is the same as the frequency used by the macro base station, and the backhaul line between the macro cell and the corresponding micro cell (the micro cell is the cell that triggers the measurement event) (backhaul) The selected networking scheme, the networking scheme may use an enhanced inter-cell interference coordination eICIC scheme, an intra-frequency dual connectivity scheme, an inter-frequency dual connectivity scheme, a carrier aggregation scheme, and the like. Load balancing optimization can select the corresponding load balancing optimization algorithm according to the networking mode. For example, the eICIC scheme can adjust the proportion of almost blank subframe ABS according to the cell load.
实施例二:Embodiment 2:
请参见图4所示,本实施例提供了一种通信系统,包括宏基站和该宏基站的宏小区下的用户终端;Referring to FIG. 4, the embodiment provides a communication system, including a macro base station and a user terminal in a macro cell of the macro base station;
宏基站,设置为为用户终端配置预设测量对象的测量事件,该测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;以及接收用户终端在测量到该测量事件后反馈的测量结果;The macro base station is configured to configure a measurement event of the preset measurement object for the user terminal, where the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, the micro cell signal strength is greater than the second signal strength threshold; and the receiving user The measurement result fed back by the terminal after measuring the measurement event;
用户终端,设置为接收宏基站所配置的预设测量对象的测量事件,对该预设测量对象进行测量,并在测量到测量事件后,将测量结果反馈给宏基站。a user terminal, configured to receive a measurement event of a preset measurement object configured by the macro base station,The measurement object is preset to perform measurement, and after the measurement event is measured, the measurement result is fed back to the macro base station.
宏基站,还设置为在接收到测量结果后进行网络优化处理。The macro base station is further configured to perform network optimization processing after receiving the measurement result.
可选的,请参见图5所示,宏基站包括测量配置模块和网络监测模块;Optionally, as shown in FIG. 5, the macro base station includes a measurement configuration module and a network monitoring module.
测量配置模块,设置为为宏基站的宏小区下的用户终端配置预设测量对象的测量事件,测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;本实施例中的第一信号强度阈值和第二信号强度阈值可以根据实际应用场景(或网络环境等)设定;其设定原则和取值范围可以采用现有协议中的约定的原则和取值范围;The measurement configuration module is configured to configure a measurement event of the preset measurement object for the user terminal in the macro cell of the macro base station, where the measurement event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second The signal strength threshold; the first signal strength threshold and the second signal strength threshold in this embodiment may be set according to an actual application scenario (or a network environment, etc.); the setting principle and the value range may adopt an agreement in an existing protocol. Principles and scope of values;
网络监测模块,设置为接收用户终端在测量到测量事件后反馈的测量结果。The network monitoring module is configured to receive a measurement result fed back by the user terminal after measuring the measurement event.
请参见图6所示,宏基站还包括网络优化模块;Referring to FIG. 6, the macro base station further includes a network optimization module.
网络监测模块,还设置为收到测量结果后,得知用户终端所处的位置可以同时接收到较好的宏小区信号和对应的微小区(触发该测量事件)信号,确定宏小区与该微小区为重叠覆盖状态,发送网络优化通知给网络优化模块;The network monitoring module is further configured to: after receiving the measurement result, know that the location of the user terminal can simultaneously receive a better macro cell signal and a corresponding micro cell (trigger the measurement event) signal, and determine the macro cell and the micro cell. The area is an overlapping coverage state, and the network optimization notification is sent to the network optimization module;
网络优化模块,设置为接收到网络优化通知后,进行网络优化处理。The network optimization module is configured to perform network optimization processing after receiving the network optimization notification.
如图7所示,网络优化模块包括组网优化子模块、负载优化子模块、切换优化子模块、测量配置优化子模块中的至少一种;As shown in FIG. 7, the network optimization module includes at least one of a networking optimization submodule, a load optimization submodule, a handover optimization submodule, and a measurement configuration optimization submodule;
组网优化子模块,设置为确定所述宏小区和对应的微小区的组网方案;组网方案优化处理时可结合预设测量对象是否与宏基站所使用的频点相同,以及宏小区和对应的微小区(该微小区为触发上述测量事件的小区)之间的回程线路(backhaul)的情况选定组网方案,组网方案可选用eICIC方案、同频双连接方案、异频双连接方案、载波聚合方案等等;The networking optimization sub-module is configured to determine a networking scheme of the macro cell and the corresponding micro cell; the networking solution optimization process may be combined with whether the preset measurement object is the same as the frequency used by the macro base station, and the macro cell and The networking scheme is selected in the case of a backhaul between the corresponding micro cell (the cell that triggers the measurement event), and the eICIC solution, the same-frequency dual-connection scheme, and the inter-frequency dual connection may be selected for the networking scheme. Scheme, carrier aggregation scheme, etc.
负载优化子模块设置为根据组网方案确定负载均衡算法;例如eICIC方案可根据小区负荷调整ABS子帧的比例等;The load optimization submodule is configured to determine a load balancing algorithm according to the networking scheme; for example, the eICIC scheme may adjust the proportion of the ABS subframe according to the cell load;
切换优化子模块设置为确定用户终端在每个小区之间的切换策略;The handover optimization submodule is configured to determine a handover strategy of the user terminal between each cell;
测量配置优化子模块设置为确定用户终端的测量配置。The measurement configuration optimization sub-module is set to determine the measurement configuration of the user terminal.
请参见图8所示,本实施例中的用户终端包括配置接收模块、测量模块以及发送模块;Referring to FIG. 8 , the user terminal in this embodiment includes a configuration receiving module and a measurement module.And a sending module;
配置接收模块,设置为接收宏基站所配置的预设测量对象的测量事件,测量事件为:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;The receiving module is configured to receive a measurement event of the preset measurement object configured by the macro base station, where the measured event is: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold;
测量模块,设置为对预设测量对象进行测量,并在测量到测量事件后,将测量结果发送给发送模块;The measuring module is configured to perform measurement on the preset measurement object, and after measuring the measurement event, send the measurement result to the sending module;
发送模块,设置为将测量结果反馈给宏基站。The sending module is configured to feed back the measurement result to the macro base station.
实施例三:Embodiment 3:
本实施例以预设测量对象(即预设测量频点)与宏基站所使用的频点相同的情况,对本发明做进行一步说明。In this embodiment, the present invention is described in one step with the case where the preset measurement object (ie, the preset measurement frequency point) is the same as the frequency used by the macro base station.
在异构网组网场景中,在宏基站的覆盖范围内,部署低功率的微小区。假设宏基站使用的频点为F1,低功率微小区使用的频点为同频F1;预设测量对象为频点F1;In a heterogeneous network networking scenario, low-power microcells are deployed within the coverage of the macro base station. Assume that the frequency used by the macro base station is F1, and the frequency used by the low power micro area is the same frequency F1; the preset measurement object is the frequency point F1;
本实施例中定义新的测量事件A7,包括:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;即,Mp+Hys>Thresh1,Mn+Ofn+Ocn-Hys>Thresh2,其中,Mp为本区的测量结果,Mn为邻区的测量结果,Ofn为邻区的频点偏移值,Ocn为邻区的小区偏移值,Hys为该事件的滞后值,Thresh1为本区的第一信号强度阈值,Thresh2为邻区的第二信号强度阈值。Mp和Mn可以为RSRP(Reference Signal Receiving Power,参考信号接收功率)和RSRQ(Reference Signal Receiving Quality,LTE参考信号接收质量)的测量结果。In this embodiment, a new measurement event A7 is defined, including: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold; that is, Mp+Hys>Thresh1, Mn+Ofn+ Ocn-Hys>Thresh2, where Mp is the measurement result of the region, Mn is the measurement result of the neighboring cell, Ofn is the frequency offset value of the neighboring cell, Ocn is the cell offset value of the neighboring cell, and Hys is the event of the event. Hysteresis value, Thresh1 is the first signal strength threshold of the zone, and Thresh2 is the second signal strength threshold of the neighboring zone. Mp and Mn may be measurement results of RSRP (Reference Signal Receiving Power) and RSRQ (Reference Signal Receiving Quality).
本实施例发现重叠覆盖小区的过程为:This embodiment finds that the process of overlapping coverage cells is:
宏基站的测量配置模块指示用户终端进行邻区测量,为其配置测量对象为频点F1的测量事件A7。宏基站在未知其覆盖范围是否存在开启的频点为F1的微小区时,对其下连接状态的用户终端配置测量对象为F1的测量事件A7,并通过无线资源控制协议RRC通知用户终端;The measurement configuration module of the macro base station instructs the user terminal to perform neighbor cell measurement, and configures the measurement event A7 whose measurement object is the frequency point F1. When the macro base station does not know whether there is an open micro cell with a frequency point of F1, the macro base station configures the measurement event A7 of the measurement object F1 for the user terminal in the lower connection state, and notifies the user terminal by using the radio resource control protocol RRC;
用户终端在接收到测量配置后,对频点F1进行测量,当终端处于宏小区和微小区的共同覆盖下,宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;宏小区和微小区的测量结果满足测量事件A7条件后,将测量结果上报给宏基站。After receiving the measurement configuration, the user terminal measures the frequency point F1 when the terminal is in the macro cell.Under the common coverage of the micro cell, the signal strength of the macro cell is greater than the threshold of the first signal strength, and the signal strength of the micro cell is greater than the threshold of the second signal strength; after the measurement result of the macro cell and the micro cell meets the condition of the measurement event A7, the measurement result is reported to Macro base station.
宏基站接收到测量结果后,如果测量结果是测量对象为F1的测量事件A7,交由网络监测模块处理。网络监测模块根据测量结果可以判断宏小区与微小区为重叠覆盖状况,并将该状况指示给网络优化模块。After the macro base station receives the measurement result, if the measurement result is the measurement event A7 whose measurement object is F1, it is processed by the network monitoring module. The network monitoring module can determine that the macro cell and the micro cell are overlapping coverage conditions according to the measurement result, and indicate the status to the network optimization module.
网络优化模块优化用户终端的参数和宏小区与微小区的策略。此时宏小区和微小区同频,宏小区与微小区之间的干扰很大,网络优化模块需要优化组网方案。网络优化模块根据宏小区与微小区之间的是否存在backhaul,选择不同的组网方案。当宏小区与微小区之间不存在backhaul时,可采用eICIC方案。当宏小区与微小区之间存在backhaul时,可采用同频双连接方案或eICIC方案。网络优化模块调整负载均衡算法,根据不同的组网方案,应用不同的负载均衡算法。例如,eICIC方案可根据小区负荷调整ABS子帧的比例。切换策略和测量配置也进行调整。对中高速用户终端仅配置测量对象为F1的A3事件,仅支持中高速终端的宏小区切换;对低速用户终端配置测量对象为F1的A3事件、A5事件,支持低速用户终端的宏小区切换、宏微切换、微微切换、以及宏微之间的负载均衡,而且,如果宏小区与微小区可采用同频双连接方案,对低速用户终端还要配置测量对象为F1的A4事件、A2事件和A6事件,以支持辅载波的添加、删除和更新。The network optimization module optimizes parameters of the user terminal and strategies of the macro cell and the micro cell. At this time, the macro cell and the micro cell have the same frequency, and the interference between the macro cell and the micro cell is large, and the network optimization module needs to optimize the networking solution. The network optimization module selects different networking schemes according to whether there is a backhaul between the macro cell and the micro cell. When there is no backhaul between the macro cell and the micro cell, the eICIC scheme can be adopted. When there is backhaul between the macro cell and the micro cell, an intra-frequency dual connection scheme or an eICIC scheme may be adopted. The network optimization module adjusts the load balancing algorithm and applies different load balancing algorithms according to different networking schemes. For example, the eICIC scheme can adjust the proportion of ABS subframes according to the cell load. The switching strategy and measurement configuration are also adjusted. For the medium and high speed user terminal, only the A3 event with the measurement object F1 is configured, and only the macro cell handover of the medium and high speed terminal is supported. For the low speed user terminal, the A3 event and the A5 event of the F1 are configured, and the macro cell handover of the low speed user terminal is supported. Macro-micro handover, pico handover, and load balancing between macro and micro. Moreover, if the macro cell and the micro cell can adopt the same-frequency dual connection scheme, the low-speed user terminal should also be configured with the A4 event, the A2 event and the measurement object F1. A6 event to support the addition, deletion and update of the secondary carrier.
本实施例中的高、中、低速是指用户终端的移动速度。高、中、低速的划分原则和取值范围可采用现有协议中的划分原则和取值范围,也可根据应用场景自己定义。The high, medium, and low speeds in this embodiment refer to the moving speed of the user terminal. The division principle and value range of high, medium and low speed can be defined by the division principle and value range in the existing protocol, or can be defined according to the application scenario.
实施例四:Embodiment 4:
本实施例以预设测量对象(即预设测量频点)与宏基站所使用的频点不同的情况,对本发明做进行一步说明。In this embodiment, the present invention is described in one step with a case where the preset measurement object (ie, the preset measurement frequency point) is different from the frequency used by the macro base station.
在异构网组网场景中,在宏基站的覆盖范围内,部署低功率的微小区。假设宏基站使用的频点为F1,低功率微小区使用的频点为同频F2;预设测量对象为频点F2;In a heterogeneous network networking scenario, low-power microcells are deployed within the coverage of the macro base station. It is assumed that the frequency used by the macro base station is F1, and the frequency used by the low power micro area is the same frequency F2; preset measurementThe object is the frequency point F2;
本实施例中定义新的测量事件A7,包括:测量得到的宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;即,Mp+Hys>Thresh1,Mn+Ofn+Ocn-Hys>Thresh2,其中,Mp为本区的测量结果,Mn为邻区的测量结果,Ofn为邻区的频点偏移值,Ocn为邻区的小区偏移值,Hys为该事件的滞后值,Thresh1为本区的第一信号强度阈值,Thresh2为邻区的第二信号强度阈值。Mp和Mn可以为RSRP(Reference Signal Receiving Power,参考信号接收功率)和RSRQ(Reference Signal Receiving Quality,LTE参考信号接收质量)的测量结果。In this embodiment, a new measurement event A7 is defined, including: the measured macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold; that is, Mp+Hys>Thresh1, Mn+Ofn+ Ocn-Hys>Thresh2, where Mp is the measurement result of the region, Mn is the measurement result of the neighboring cell, Ofn is the frequency offset value of the neighboring cell, Ocn is the cell offset value of the neighboring cell, and Hys is the event of the event. Hysteresis value, Thresh1 is the first signal strength threshold of the zone, and Thresh2 is the second signal strength threshold of the neighboring zone. Mp and Mn may be measurement results of RSRP (Reference Signal Receiving Power) and RSRQ (Reference Signal Receiving Quality).
本实施例发现重叠覆盖小区的过程为:This embodiment finds that the process of overlapping coverage cells is:
宏基站的测量配置模块指示用户终端进行邻区测量,为其配置测量对象为频点F2的测量事件A7。宏基站在未知其覆盖范围是否存在开启的频点为F2的微小区时,对其下连接状态的用户终端配置测量对象为F2的测量事件A7,并通过无线资源控制协议RRC通知用户终端;The measurement configuration module of the macro base station instructs the user terminal to perform the neighboring area measurement, and configures the measurement event A7 whose measurement object is the frequency point F2. When the macro base station does not know whether there is an open micro cell with a frequency point of F2, the macro base station configures a measurement event A7 of the measurement object F2 for the user terminal in the lower connection state, and notifies the user terminal by using the radio resource control protocol RRC;
用户终端在接收到测量配置后,对频点F2进行测量,当终端处于宏小区和微小区的共同覆盖下,宏小区信号强度大于第一信号强度阈值,微小区信号强度大于第二信号强度阈值;宏小区和微小区的测量结果满足测量事件A7条件后,将测量结果上报给宏基站。After receiving the measurement configuration, the user terminal measures the frequency point F2. When the terminal is in the common coverage of the macro cell and the micro cell, the macro cell signal strength is greater than the first signal strength threshold, and the micro cell signal strength is greater than the second signal strength threshold. After the measurement result of the macro cell and the micro cell satisfies the condition of the measurement event A7, the measurement result is reported to the macro base station.
宏基站接收到测量结果后,如果测量结果是测量对象为F2的测量事件A7,交由网络监测模块处理。网络监测模块根据测量结果可以判断宏小区与微小区为重叠覆盖状况,并将该状况指示给网络优化模块。After the macro base station receives the measurement result, if the measurement result is the measurement event A7 whose measurement object is F2, it is processed by the network monitoring module. The network monitoring module can determine that the macro cell and the micro cell are overlapping coverage conditions according to the measurement result, and indicate the status to the network optimization module.
网络优化模块优化用户终端的参数和宏小区与微小区的策略。此时宏小区和微小区异频组网,网络优化模块根据宏小区与微小区之间的backhaul,选择不同的组网方案。当宏小区与微小区之间是理想backhaul时,可采用载波聚合方案。当宏小区与微小区之间是非理想backhaul时,可采用异频双连接方案。网络优化模块进而调整负载均衡算法。例如,载波聚合方案需要均衡小区间上行资源的负荷。切换策略和测量配置也进行调整。对中高速用户终端仅配置测量对象为F1的A3事件,仅支持中高速用户终端的宏小区切换;对低速用户终端配置测量对象为F1和F2的A3事件、A5事件,支持低速终端的宏小区切换、宏微切换、微微切换、以及宏微之间的负载均衡,而且,对低速用户终端还要配置测量对象为F2的A4事件、A2事件和A6事件,以支持辅载波的添加、删除和更新。The network optimization module optimizes parameters of the user terminal and strategies of the macro cell and the micro cell. At this time, the macro cell and the micro cell inter-frequency networking, the network optimization module selects different networking solutions according to the backhaul between the macro cell and the micro cell. When the macro cell and the micro cell are ideal backhaul, a carrier aggregation scheme can be adopted. When the macro cell and the micro cell are non-ideal backhaul, an inter-frequency dual connection scheme can be adopted. The network optimization module further adjusts the load balancing algorithm. For example, a carrier aggregation scheme needs to balance the load of uplink resources between cells. The switching strategy and measurement configuration are also adjusted. Only the A3 event with the measurement object F1 is configured for the medium and high speed user terminal, and only the macro cell handover of the medium and high speed user terminal is supported. The A3 event and the A5 event of the F1 and F2 are configured for the low speed user terminal, and the low speed end is supported.End macro-cell handover, macro-micro handover, pico-switching, and load balancing between macro and micro, and also configure A4 events, A2 events, and A6 events with measurement objects F2 for low-speed user terminals to support the addition of secondary carriers. , delete, and update.
本实施例中的高、中、低速是指用户终端的移动速度。高、中、低速的划分原则和取值范围可采用现有协议中的划分原则和取值范围,也可根据应用场景自己定义。本实施例中的理想backhaul和非理想backhaul的划分原则也可采用现有协议中的划分原则进行区分。The high, medium, and low speeds in this embodiment refer to the moving speed of the user terminal. The division principle and value range of high, medium and low speed can be defined by the division principle and value range in the existing protocol, or can be defined according to the application scenario. The division principle of the ideal backhaul and the non-ideal backhaul in this embodiment can also be distinguished by the division principle in the existing protocol.
以上内容是结合具体的实施方式对本发明所作的进一步详细说明,不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本发明的保护范围。The above is a further detailed description of the present invention in connection with the specific embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中,所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行,在执行时,包括方法实施例的步骤之一或其组合。One of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments.
可选地,上述实施例的全部或部分步骤也可以使用集成电路来实现,这些步骤可以被分别制作成一个个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现,它们可以集中在单个的计算装置上,也可以分布在多个计算装置所组成的网络上。The devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器,磁盘或光盘等。When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
工业实用性Industrial applicability上述技术方案实现了用户终端自主发现位于宏小区和微小区的重叠区域,且反馈给宏基站,便于宏基站基于该反馈对网络进行优化处理。The foregoing technical solution realizes that the user terminal autonomously finds an overlapping area located in the macro cell and the micro cell, and feeds back to the macro base station, so that the macro base station optimizes the network based on the feedback.