WO2014146533A1

WO2014146533A1 - Interference suppression method, macro base station, micro base station and system

Info

Publication number: WO2014146533A1
Application number: PCT/CN2014/072607
Authority: WO
Inventors: 胡文权; 铁晓磊; 焦淑蓉; 花梦
Original assignee: 华为技术有限公司
Priority date: 2013-03-21
Filing date: 2014-02-27
Publication date: 2014-09-25
Also published as: CN104066105A; CN104066105B

Abstract

An interference suppression method, a macro base station, a micro base station and a system. The method comprises: acquiring channel parameters of UEs in a CELL-DCH state or a CELL_FACH state that reside in a serving cell of a micro base station; monitoring an uplink channel of each UE in accordance with the channel parameters for obtaining the uplink interference quantity of the UEs to the macro base station; determining a target UE with a transmitting power to be reduced from the UEs in accordance with the uplink interference quantity; and notifying the target UE to the micro base station so that the micro base station reduces the transmitting power of the target UE. The technical solution of the present invention can reduce the interference of a UE that uses a cell of a micro base station as a serving cell to the macro base station and can reduce the waste of upstream resources.

Description

干扰抑制方法、宏基站、微基站及*** Interference suppression method, macro base station, micro base station and system

本申请要求于 2013 年 3 月 21 日提交中国专利局、申请号为 201310092181.0、发明名称为"干扰抑制方法、宏基站、微基站及***"的中国专利申请的优先权，其全部内容通过引用结合在本申请中。 This application claims priority to Chinese Patent Application No. 201310092181.0, entitled "Interference Suppression Method, Macro Base Station, Micro Base Station and System", filed on March 21, 2013, the entire contents of which are incorporated by reference. In this application.

技术领域 Technical field

本发明涉及通信技术，尤其涉及一种干扰抑制方法、宏基站、微基站及系统。背景技术在现有宏网络部署中，由于其覆盖较大，存在业务热点区域、覆盖盲点区域以及覆盖边缘区域等需要改善用户体验的场景，异构网（Heterogeneous network, 筒称为 HetNet )是一种用于解决上述问题的技术之一。在异构网形态下，可以利用微小区对宏小区的盲区进行补盲，或者可以在宏小区的热点话务区利用微小区吸收话务，因此可以提升小区的容量，保障用户体验。 The present invention relates to communication technologies, and in particular, to an interference suppression method, a macro base station, a micro base station, and a system. BACKGROUND OF THE INVENTION In an existing macro network deployment, a Heterogeneous network (HetNet) is a scenario in which a service hotspot area, a coverage blind area, and an edge area are required to improve the user experience. One of the techniques for solving the above problems. In the heterogeneous network state, the micro cell can be used to supplement the blind zone of the macro cell, or the micro cell can be used to absorb traffic in the hot cell of the macro cell, so that the capacity of the cell can be improved and the user experience can be guaranteed.

在异构网形态下，按现有网络规范，网络覆盖区内至少存在以下问题：由于微基站所在微小区负载较轻，因此，可能允许靠近软切换区且以微小区为服务小区的 UE发送较大的上行功率，这会造成这些 UE对宏基站的强上行干扰。现有技术一般是通过限制微基站的宽带接收总功率（Receive Total Wideband Power, 筒称为 RTWP ), 控制微小区的上行负载，减少以微小区作为服务小区的 UE的总发送功率，降低以微小区作为服务小区的 UE对宏基站的干扰。但是，这种方法不能充分利用上行资源，会造成资源浪费。发明内容本发明实施例提供一种干扰抑制方法、宏基站、微基站及***，用以降低以微基站所在小区为服务小区的 UE对宏基站的干扰并减少上行资源的浪费。 In the heterogeneous network mode, according to the existing network specifications, at least the following problems exist in the network coverage area: Since the micro cell in which the micro base station is located is lightly loaded, it may be allowed to be sent to the UE that is close to the soft handover zone and is served by the micro cell as the serving cell. Larger uplink power, which causes strong uplink interference of these UEs to the macro base station. The prior art generally controls the uplink load of the micro cell by limiting the total received power of the micro base station (Receive Total Wideband Power, called RTWP), and reduces the total transmit power of the UE that uses the micro cell as the serving cell, and reduces the total transmit power. The area is the interference of the UE of the serving cell to the macro base station. However, this method does not make full use of uplink resources, which will result in waste of resources. The embodiments of the present invention provide an interference suppression method, a macro base station, a micro base station, and a system, which are used to reduce interference of a UE that is a serving cell of a micro base station to a macro base station and reduce waste of uplink resources.

第一方面提供一种干扰抑制方法，包括：获取驻留在微基站的服务小区中的所有用户设备（UE )的信道参数，其中，所述 UE处于 CELL— DCH态，或处于 CELL— FACH态；根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获取所述 UE对宏基站的上行干扰量；根据所述上行干扰量，从所述 UE中确定待降低发送功率的目标 UE; 将所述目标 UE通知所述微基站，以便所述微基站降低所述目标 UE的发送功率。 The first aspect provides an interference suppression method, including: acquiring channel parameters of all user equipments (UEs) residing in a serving cell of a micro base station, where the UE is in a CELL-DCH state, or In the CELL-FACH state, the uplink channel of each of the UEs is separately monitored according to the channel parameter, and the uplink interference amount of the UE to the macro base station is obtained, and the uplink interference quantity is determined according to the uplink interference quantity. a target UE to which the transmission power is to be reduced; notifying the target base station of the micro base station, so that the micro base station reduces the transmission power of the target UE.

结合第一方面，在第一方面的第一种可能的实现方式中，所述获取驻留在微基站的服务小区中的所有 UE的信道参数，包括：当所述宏基站的宽带接收总功率 RTWP大于预设功率门限时，向所述微基站发送信道参数获取请求；接收所述微基站根据所述信道参数获取请求返回的信道参数获取响应，所述信道参数获取响应携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 With reference to the first aspect, in a first possible implementation manner of the first aspect, the acquiring, by the macro base station, the total power of the broadband receiving the channel parameters of all the UEs in the serving cell of the micro base station When the RTWP is greater than the preset power threshold, the channel parameter acquisition request is sent to the micro base station; the receiving the micro base station acquires a response according to the channel parameter returned by the channel parameter acquisition request, where the channel parameter acquisition response carries The channel parameters of all UEs in the serving cell of the micro base station.

结合第一方面，在第一方面的第二种可能的实现方式中，所述获取驻留在微基站的服务小区中的所有 UE的信道参数，包括：接收所述微基站发送的上报信息，所述上报信息携带有驻留在所述微基站的服务小区中的所有 UE的信道参数；所述根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获取所述 UE对宏基站的上行干扰量，包括：当所述宏基站的 RTWP大于预设功率门限时，根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获取所述 UE对所述宏基站的上行干扰量。 With reference to the first aspect, in a second possible implementation manner of the first aspect, the acquiring, by the micro base station, the channel information that is sent by the micro base station, The reporting information carries channel parameters of all UEs that are camped on in the serving cell of the micro base station; and the uplink channel of each of the UEs is separately monitored according to the channel parameter, and the UE pair is obtained. The uplink interference quantity of the macro base station includes: when the RTWP of the macro base station is greater than a preset power threshold, respectively, monitoring, according to the channel parameter, an uplink channel of each of the UEs, and acquiring, by the UE, the macro base The amount of uplink interference at the station.

结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，所述将所述目标 UE通知所述微基站，以便所述微基站降低所述目标 UE的发送功率，包括：将所述目标 UE的标识发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中确定所述目标 UE, 并降低所述目标 UE的发送功率。 With reference to the first aspect, or the first possible implementation of the first aspect, or the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, Notifying the micro base station, so that the micro base station reduces the transmit power of the target UE, including: sending an identifier of the target UE to the micro base station, so that the micro base station according to the identifier of the target UE, Determining the target UE among all UEs in the serving cell camping on the micro base station, and reducing the transmission power of the target UE.

结合第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述将所述目标 UE的标识发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中确定所述目标 UE, 并降低所述目标 UE的发送功率，包括：将所述目标 UE的标识和所述目标 UE对所述宏基站的上行干扰量，发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中确定所述目标 UE, 根据所述目标 UE对所述宏基站的上行干扰量确定发送功率降低量，并根据所述发送功率降低量降低所述目标 UE的发送功率。结合第一方面或第一方面的第一种可能的实现方式或第一方面的第二种可能的实现方式或第一方面的第三种可能的实现方式或第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述根据所述上行干扰量，从所述 UE中确定待降低发送功率的目标 UE, 包括：将所述 UE中对所述宏基站的上行干扰量大于预设干扰量门限的 UE作为所述目标 UE。 With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the identifier of the target UE is sent to the micro base station, so that the micro base station is configured according to the Determining the target UE, determining the target UE from all UEs in the serving cell that camps in the micro base station, and reducing the transmit power of the target UE, including: identifying the target UE and the target The uplink interference of the UE to the macro base station is sent to the micro base station, so that the micro base station determines the target from all UEs in the serving cell camping on the micro base station according to the identifier of the target UE. The UE determines a transmission power reduction amount according to the uplink interference amount of the target UE to the macro base station, and reduces a transmission power of the target UE according to the transmission power reduction amount. Combining the first aspect or the first possible implementation of the first aspect or the second possible implementation of the first aspect or the third possible implementation of the first aspect or the fourth possible implementation of the first aspect In a fifth possible implementation manner of the first aspect, the determining, by the UE, a target UE that is to be reduced in transmit power according to the uplink interference quantity, includes: The UE whose uplink interference amount of the macro base station is greater than the preset interference amount threshold is used as the target UE.

第二方面提供一种干扰抑制方法，包括：发送驻留在微基站的服务小区中的所有用户设备（UE ) 的信道参数给宏基站，以便所述宏基站根据所述信道参数对每个所述 UE的上行信道进行监听，并根据监听获取的所述 UE对所述宏基站的上行干扰量，从所述 UE中确定待降低发送功率的目标 UE, 其中，所述 UE处于 CELL-DCH态，或处于 CELL— FACH态；根据所述宏基站通知的所述目标 UE, 降低所述目标 UE的发送功率。 A second aspect provides an interference suppression method, including: transmitting a channel parameter of all user equipments (UEs) residing in a serving cell of a micro base station to a macro base station, so that the macro base station compares each channel according to the channel parameter. The uplink channel of the UE is monitored, and the target UE to be reduced in transmit power is determined from the UE according to the uplink interference amount of the UE to the macro base station, where the UE is in the CELL-DCH state. Or in the CELL_FACH state; reducing the transmission power of the target UE according to the target UE notified by the macro base station.

结合第二方面，在第二方面的第一种可能的实现方式中，所述发送驻留在微基站的服务小区中的所有 UE的信道参数给宏基站，包括：接收所述宏基站在所述宏基站的宽带接收总功率 RTWP大于预设功率门限时发送的信道参数获取请求；根据所述信道参数获取请求，向所述宏基站发送信道参数获取响应，所述信道参数获取响应携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 With reference to the second aspect, in a first possible implementation manner of the second aspect, the transmitting, by the macro station, a channel parameter of all the UEs that are in the serving cell of the micro base station, a channel parameter acquisition request sent when the broadband receiving total power RTWP of the macro base station is greater than a preset power threshold; sending a channel parameter acquisition response to the macro base station according to the channel parameter acquisition request, where the channel parameter acquisition response carries a resident Channel parameters of all UEs remaining in the serving cell of the micro base station.

结合第二方面，在第二方面的第二种可能的实现方式中，所述发送驻留在微基站的服务小区中的所有 UE的信道参数给宏基站，包括：向所述宏基站发送上报信息，所述上报信息携带有驻留在所述微基站的服务小区中的所有 UE 的信道参数。 With reference to the second aspect, in a second possible implementation manner of the second aspect, the transmitting, by the macro station, the channel parameter of all UEs that are in the serving cell of the micro base station, includes: sending the report to the macro base station Information, the reporting information carries channel parameters of all UEs residing in a serving cell of the micro base station.

结合第二方面或第二方面的第一种可能的实现方式或第二方面的第二种可能的实现方式，在第二方面的第三种可能的实现方式中，所述根据所述宏基站通知的所述目标 UE, 降低所述目标 UE的发送功率，包括：接收所述宏基站发送的所述目标 UE的标识；根据所述目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 并降低所述目标 UE的发送功率。 With reference to the second aspect, or the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, The target UE that is notified to reduce the transmit power of the target UE includes: receiving an identifier of the target UE sent by the macro base station; and serving from the micro base station according to the identifier of the target UE Among all the UEs in the cell, the target UE is determined, and the transmission power of the target UE is reduced.

结合第二方面的第三种可能的实现方式，在第二方面的第四种可能的实现方式中，所述降低所述目标 UE的发送功率，包括：将所述目标 UE的标识加入限制集合，并降低所述目标 UE的调度授权值，将降低后的调度授权值发送给所述目标 UE, 以降低所述目标 UE的发送功率，其中，在所述限制集合中的 UE 的标识对应的调度 4受权值保持不变或降低；或者，向所述目标 UE发送功率下降指示，以降低所述目标 UE的发送功率。 With the third possible implementation of the second aspect, in a fourth possible implementation manner of the second aspect, the reducing the transmit power of the target UE includes: adding an identifier of the target UE to a restricted set And reducing the scheduling grant value of the target UE, and sending the reduced scheduling grant value to the target UE, to reduce the sending power of the target UE, where the UE in the restricted set The identifier 4 corresponding to the identifier 4 remains unchanged or decreases; or, the power down indication is sent to the target UE to reduce the transmit power of the target UE.

结合第二方面的第四种可能的实现方式，在第二方面的第五种可能的实现方式中，所述降低所述目标 UE的调度授权值之前，还包括：接收所述宏基站发送的所述目标 UE对所述宏基站的上行干扰量；所述降低所述目标 UE的调度授权值，包括：根据所述目标 UE对所述宏基站的上行干扰量，确定发送功率降低量，根据所述发送功率降低量，降低所述目标 UE的调度授权值。 With the fourth possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, before the reducing the scheduling grant value of the target UE, the method further includes: receiving, by the macro base station, The uplink interference amount of the target UE to the macro base station; the reducing the scheduling grant value of the target UE, including: determining, according to an uplink interference amount of the target base station, the transmit power reduction amount, according to The transmit power reduction amount reduces a scheduling grant value of the target UE.

结合第二方面的第四种可能的实现方式或第二方面的第五种可能的实现方式，在第二方面的第六种可能的实现方式中，所述方法还包括：判断是否满足将所述目标 UE的标识从所述限制集合中删除的触发条件；如果判断结果为满足，将所述目标 UE的标识从所述限制集合中删除。 With reference to the fourth possible implementation of the second aspect or the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, the method further includes: determining whether the And a trigger condition for deleting the identifier of the target UE from the restricted set; if the determination result is satisfied, deleting the identifier of the target UE from the restricted set.

结合第二方面的第六种可能的实现方式，在第二方面的第七种可能的实现方式中，所述触发条件包括：所述目标 UE对所述宏基站的上行干扰量小于或等于预设干扰量门限；或者，所述目标 UE的标识加入到所述限制集合的时间达到指定时间长度；或者，所述目标 UE退出 Cell-DCH态或 CELL— FACH态。 With reference to the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the triggering condition includes: the uplink interference amount of the target UE to the macro base station is less than or equal to a pre- The interference threshold is set; or, the time when the identifier of the target UE is added to the restricted set reaches a specified length of time; or the target UE exits the Cell-DCH state or the CELL-FACH state.

第三方面提供一种宏基站，包括：获取模块，用于获取驻留在微基站的服务小区中的所有用户设备（UE ) 的信道参数，其中，所述 UE处于 CELL-DCH 态，或处于 CELL— FACH态；监听模块，用于根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获得所述 UE对所述宏基站的上行干扰量；确定模块，用于根据所述上行干扰量，从所述 UE中确定待降低发送功率的目标 UE; 通知模块，用于将所述目标 UE通知所述微基站，以便所述微基站降低所述目标 UE的发送功率。 A third aspect provides a macro base station, including: an acquiring module, configured to acquire channel parameters of all user equipments (UEs) residing in a serving cell of a micro base station, where the UE is in a CELL-DCH state, or is in a state a CELL-FACH state, configured to: monitor, according to the channel parameter, an uplink channel of each of the UEs, and obtain an uplink interference quantity of the UE to the macro base station; Determining, by the UE, a target UE to be reduced in transmit power, and a notification module, configured to notify the target base station of the micro base station, so that the micro base station reduces the transmit power of the target UE.

结合第三方面，在第三方面的第一种可能的实现方式中，所述获取模块具体用于当所述宏基站的宽带接收总功率 RTWP大于预设功率门限时，向所述微基站发送信道参数获取请求，并接收所述微基站根据所述信道参数获取请求返回的信道参数获取响应，所述信道参数获取响应携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 With reference to the third aspect, in a first possible implementation manner of the third aspect, the acquiring module is specifically configured to send, when the broadband receiving total power RTWP of the macro base station is greater than a preset power threshold, to the micro base station a channel parameter acquisition request, and receiving a channel parameter acquisition response returned by the micro base station according to the channel parameter acquisition request, where the channel parameter acquisition response carries channel parameters of all UEs camped in a serving cell of the micro base station .

结合第三方面，在第三方面的第二种可能的实现方式中，所述获取模块具体用于接收所述微基站发送的上报信息，所述上报信息携带有驻留在所述微基站的服务小区中的所有 UE的信道参数；所述监听模块具体用于当所述宏基站的 RTWP大于预设功率门限时，根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获得所述 UE对所述宏基站的上行干扰量。 With reference to the third aspect, in a second possible implementation manner of the third aspect, the acquiring module is specifically configured to receive the report information that is sent by the micro base station, where the report information is carried by the micro base station Channel parameters of all UEs in the serving cell; the listening module is specifically configured to be used as the macro base station When the RTWP is greater than the preset power threshold, the uplink channel of each of the UEs is separately monitored according to the channel parameters, and the uplink interference amount of the UE to the macro base station is obtained.

结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种可能的实现方式，在第三方面的第三种可能的实现方式中，所述通知模块具体用于将所述目标 UE的标识发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 然后降低所述目标 UE的发送功率。 With reference to the third aspect, or the first possible implementation manner of the third aspect, or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the Sending the identifier of the target UE to the micro base station, so that the micro base station determines the target UE from all UEs in the serving cell camping on the micro base station according to the identifier of the target UE, and then The transmission power of the target UE is reduced.

结合第三方面的第三种可能的实现方式，在第三方面的第四种可能的实现方式中，所述通知模块具体用于将所述目标 UE的标识和所述目标 UE对所述宏基站的上行干扰量，发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 根据所述目标 UE对所述宏基站的上行干扰量确定发送功率降低量，并根据所述发送功率降低量降低所述目标 UE的发送功率。 With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the notification module is specifically configured to use the identifier of the target UE and the target UE to the abase The uplink interference quantity of the station is sent to the micro base station, so that the micro base station determines the target UE from all UEs in the serving cell that camps on the micro base station according to the identifier of the target UE, according to the The target UE determines a transmission power reduction amount for the uplink interference amount of the macro base station, and reduces the transmission power of the target UE according to the transmission power reduction amount.

结合第三方面或第三方面的第一种可能的实现方式或第三方面的第二种可能的实现方式或第三方面的第三种可能的实现方式或第三方面的第四种可能的实现方式，在第三方面的第六种可能的实现方式中，所述确定模块具体用于将所述 UE中对所述宏基站的上行干扰量大于预设干扰量门限的 UE作为所述目标 UE。 Combining the third aspect or the first possible implementation of the third aspect or the second possible implementation of the third aspect or the third possible implementation of the third aspect or the fourth possible implementation of the third aspect In a sixth possible implementation manner of the third aspect, the determining module is specifically configured to use, as the target, a UE that has an uplink interference amount of the macro base station that is greater than a preset interference threshold. UE.

第四方面提供一种微基站，包括：发送模块，用于发送驻留在所述微基站的服务小区中的所有用户设备（UE ) 的信道参数给宏基站，以便所述宏基站根据所述信道参数对每个所述 UE的上行信道进行监听，并根据监听获取的所述 UE对所述宏基站的上行干扰量，从所述 UE中确定待降低发送功率的目标 UE, 其中，所述 UE处于 CELL-DCH态，或处于 CELL— FACH态；功率处理模块，用于根据所述宏基站通知的所述目标 UE, 降低所述目标 UE的发送功率。 A fourth aspect provides a micro base station, including: a sending module, configured to send a channel parameter of all user equipments (UEs) residing in a serving cell of the micro base station to a macro base station, so that the macro base station is configured according to the Channel parameters are monitored by the uplink channel of each of the UEs, and the target UE to be reduced in transmit power is determined from the UE according to the uplink interference amount of the UE to the macro base station, and the The UE is in the CELL-DCH state, or is in the CELL-FACH state; the power processing module is configured to reduce the transmit power of the target UE according to the target UE notified by the macro base station.

结合第四方面，在第四方面的第一种可能的实现方式中，所述微基站还包括：接收模块，用于接收所述宏基站发送的信道参数获取请求，所述信道参数获取请求是所述宏基站确定所述宏基站的宽带接收总功率 RTWP大于预设功率门限后发送的；所述发送模块具体用于根据所述信道参数获取请求，向所述宏基站发送信道参数获取响应，所述信道参数获取响应携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。结合第四方面，在第四方面的第二种可能的实现方式中，所述发送模块具体用于向所述宏基站发送上报信息，所述上报信息携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the micro base station further includes: a receiving module, configured to receive a channel parameter acquisition request sent by the macro base station, where the channel parameter acquisition request is After the macro base station determines that the broadband receiving total power RTWP of the macro base station is greater than a preset power threshold, the sending module is specifically configured to send a channel parameter acquisition response to the macro base station according to the channel parameter obtaining request, The channel parameter acquisition response carries channel parameters of all UEs residing in a serving cell of the micro base station. With reference to the fourth aspect, in a second possible implementation manner of the fourth aspect, the sending module is configured to send, to the macro base station, report information, where the report information carries a service that resides in the micro base station Channel parameters of all UEs in the cell.

结合第四方面的第一种可能的实现方式或第四方面的第二种可能的实现方式，在第四方面的第三种可能的实现方式中，所述接收模块还用于接收所述宏基站发送的所述目标 UE的标识；所述功率处理模块具体用于根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 并降低所述目标 UE的发送功率。 In conjunction with the first possible implementation of the fourth aspect, or the second possible implementation of the fourth aspect, in a third possible implementation manner of the fourth aspect, the receiving module is further configured to receive the macro base The identifier of the target UE that is sent by the station; the power processing module is specifically configured to determine, according to the identifier of the target UE, the target UE from all UEs in the serving cell that camps on the micro base station, and reduce The transmission power of the target UE.

结合第四方面的第三种可能的实现方式，在第四方面的第四种可能的实现方式中，所述功率处理模块具体用于根据所述目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE中，确定所述目标 UE,将所述目标 UE的标识加入限制集合，降低所述目标 UE的调度授权值，并控制所述发送模块将所述降低后的调度 4受权值发送给所述目标 UE, 其中，在所述限制集合中的 UE的标识对应的调度授权值保持不变或降低；所述发送模块还用于将所述功率处理模块降低后的调度授权值发送给所述目标 UE, 以降低所述目标 UE的发送功率；或者，所述功率处理模块具体用于根据所述目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 生成功率下降指示，并控制所述发送模块将所述功率下降指示发送给所述目标 UE; 所述发送模块还用于向所述目标 UE发送所述功率下降指示，以降低所述目标 UE的发送功率。 With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the power processing module is specifically configured to reside in the micro according to the identifier of the target UE Determining, by the UE in the serving cell of the base station, the target UE, adding the identifier of the target UE to the restricted set, reducing the scheduling grant value of the target UE, and controlling the sending module to perform the reduced scheduling The weighted value is sent to the target UE, where the scheduling grant value corresponding to the identifier of the UE in the restricted set remains unchanged or decreases; the sending module is further configured to reduce the scheduling of the power processing module. The authorization value is sent to the target UE to reduce the transmission power of the target UE. Alternatively, the power processing module is specifically configured to: reside in a serving cell of the micro base station according to the identifier of the target UE. Determining, by the UE, the target UE, generating a power down indication, and controlling the sending module to send the power down indication to the target UE; Indicating the decrease in UE transmit power to the target, to reduce the transmission power of the target UE.

结合第四方面的第四种可能的实现方式，在第四方面的第五种可能的实现方式中，所述接收模块还用于接收所述宏基站发送的所述目标 UE对所述宏基站的上行干扰量；所述功率处理模块具体用于根据所述目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 然后将所述目标 UE的标识加入所述限制集合，根据所述目标 UE对所述宏基站的上行干扰量，确定发送功率降低量，根据所述发送功率降低量，降低所述目标 UE的调度授权值，并控制所述发送模块将所述降低后的调度授权值发送给所述目标 UE。 With the fourth possible implementation of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the receiving module is further configured to receive, by the macro base station, the target UE to the macro base station And the power processing module is configured to determine, according to the identifier of the target UE, the target UE from all UEs in the serving cell of the micro base station, and then the target UE. Adding the identifier to the set of restrictions, determining a transmission power reduction amount according to the uplink interference amount of the target UE to the macro base station, reducing a scheduling authorization value of the target UE according to the transmission power reduction amount, and controlling the The sending module sends the reduced scheduling authorization value to the target UE.

结合第四方面的第四种可能的实现方式或第四方面的第五种可能的实现方式，在第四方面的第六种可能的实现方式中，所述功率处理模块还用于判断是否满足将所述目标 UE的标识从所述限制集合中删除的触发条件，并在判断结果为满足时，将所述目标 UE的标识从所述限制集合中删除。 With reference to the fourth possible implementation manner of the fourth aspect, or the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the power processing module is further configured to determine whether the content is satisfied. Triggering conditions for deleting the identity of the target UE from the restricted set, and determining When the result is satisfied, the identifier of the target UE is deleted from the restricted set.

结合第四方面的第六种可能的实现方式，在第四方面的第七种可能的实现方式中，所述触发条件包括：所述目标 UE对所述宏基站的上行干扰量小于或等于预设干扰量门限；或者，所述目标 UE的标识加入到所述限制集合的时间达到指定时间长度；或者，所述目标 UE退出 Cell-DCH态或 CELL— FACH态。 With reference to the sixth possible implementation manner of the foregoing aspect, in a seventh possible implementation manner of the fourth aspect, the triggering condition includes: an uplink interference amount of the target UE to the macro base station is less than or equal to a pre- The interference threshold is set; or, the time when the identifier of the target UE is added to the restricted set reaches a specified length of time; or the target UE exits the Cell-DCH state or the CELL-FACH state.

第五方面提供一种干扰抑制***，包括第三方面提供的任一宏基站，以及第四方面提供的任一微基站。 A fifth aspect provides an interference suppression system, including any of the macro base stations provided by the third aspect, and any of the micro base stations provided by the fourth aspect.

本发明实施例提供的干扰抑制方法、宏基站、微基站及***，宏基站根据驻留在微基站的服务小区中的所有 UE的信道参数，分别对每个 UE的上行信道进行监听，确定每个 UE对宏站的上行干扰量，并从中确定出需要降低发送功率的目标 UE, 然后通知微基站降低目标 UE的发送功率，一方面降低了对宏基站的干扰，另一方面由于仅对有必要降低发送功率的目标 UE降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。附图说明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一筒单地介绍，显而易见地，下面描述中的附图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性的前提下，还可以根据这些附图获得其他的附图。 The interference suppression method, the macro base station, the micro base station, and the system provided by the embodiment of the present invention, the macro base station separately monitors the uplink channel of each UE according to the channel parameters of all UEs residing in the serving cell of the micro base station, and determines each The amount of uplink interference of the UE to the macro station, and determining the target UE that needs to reduce the transmission power, and then notifying the micro base station to reduce the transmission power of the target UE, on the one hand, reducing the interference to the macro base station, and on the other hand, It is necessary to reduce the transmission power of the target UE that reduces the transmission power, instead of directly reducing the RTWP of the micro base station, which is beneficial to fully utilizing the uplink resources and reducing the waste of uplink resources. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art description will be briefly described below, and obviously, the following description will be described. The drawings in the drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

图 1为本发明实施例提供的一种干扰抑制方法的流程图； FIG. 1 is a flowchart of an interference suppression method according to an embodiment of the present invention;

图 2为本发明实施例提供的另一种干扰抑制方法的流程图； 2 is a flowchart of another interference suppression method according to an embodiment of the present invention;

图 3为本发明实施例提供的又一种干扰抑制方法的流程图； FIG. 3 is a flowchart of still another interference suppression method according to an embodiment of the present invention;

图 4为本发明实施例提供的又一种干扰抑制方法的流程图； 4 is a flowchart of still another interference suppression method according to an embodiment of the present invention;

图 5为本发明实施例提供的一种宏基站的结构示意图； FIG. 5 is a schematic structural diagram of a macro base station according to an embodiment of the present disclosure;

图 6为本发明实施例提供的另一种宏基站的结构示意图； FIG. 6 is a schematic structural diagram of another macro base station according to an embodiment of the present disclosure;

图 7为本发明实施例提供的一种微基站的结构示意图； FIG. 7 is a schematic structural diagram of a micro base station according to an embodiment of the present disclosure;

图 8为本发明实施例提供的微基站的结构示意图。具体实施方式为使本发明实施例的目的、技术方案和优点更加清楚，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。 FIG. 8 is a schematic structural diagram of a micro base station according to an embodiment of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

在异构网络中，同时存在宏基站和微基站，宏基站覆盖的小区称为宏小区，微基站覆盖的小区称为微小区。在异构网络中， UE可能处于三种网络覆盖情况：第一个是 UE处在软切换，并以宏小区作为服务小区；第二个 UE靠近软切换区，且以宏小区作为服务小区；第三个是 UE靠近软切换区，且以微小区作为服务小区。在第三种情况下，当微基站所在微小区负载较轻时，可能允许靠近软切换区且以微小区为服务小区的 UE发送较大的上行功率，这会造成这些 UE对宏基站的强上行干扰。针对该问题，本发明以下实施例给出了解决方案。为了便于描述，本发明以下各实施例中，将以微基站所在小区作为服务小区的 UE筒称为第一 UE。 In a heterogeneous network, a macro base station and a micro base station are simultaneously present, and a cell covered by the macro base station is called a macro cell, and a cell covered by the micro base station is called a micro cell. In a heterogeneous network, the UE may be in three network coverage situations: the first is that the UE is in soft handover, and the macro cell is used as the serving cell; the second UE is close to the soft handover area, and the macro cell is used as the serving cell; The third is that the UE is close to the soft handoff area, and the micro cell is used as the serving cell. In the third case, when the microcell in which the micro base station is located is lightly loaded, it may allow a UE that is close to the soft handover area and uses the micro cell as the serving cell to transmit a large uplink power, which may cause these UEs to be strong to the macro base station. Uplink interference. In response to this problem, the following embodiments of the present invention provide a solution. For convenience of description, in the following embodiments of the present invention, a UE cartridge in which a cell in which a micro base station is located is used as a serving cell is referred to as a first UE.

图 1为本发明实施例提供的一种干扰抑制方法的流程图。如图 1所示，本实施例的方法包括： FIG. 1 is a flowchart of an interference suppression method according to an embodiment of the present invention. As shown in FIG. 1, the method of this embodiment includes:

步骤 101、获取驻留在微基站的服务小区中的所有 UE的信道参数，所述 UE 处于 CELL-DCH态，或处于 CELL— FACH态。 Step 101: Obtain channel parameters of all UEs residing in a serving cell of the micro base station, where the UE is in a CELL-DCH state or in a CELL-FACH state.

本领域技术人员应当知道， UE—般处于两种状态：空闲模式（Idle )和连接模式， UE在连接模式下又包括如下状态： CELL— DCH状态， CELL— FACH 状态， CELL— PCH状态， URA— PCH状态，其中， CELL— DCH状态有如下特征: 1、在上行和下行给 UE分配了一个专用物理信道， 2、根据 UE当前的活动集可以知道 UE所在的小区， 3、 UE可以使用专用传输信道下行 /上行共享传输信道或这些传输信道的组合； UE进入 CELL— DCH状态有如下 2种方法：（1)UE在空闲模式下 RRC连接建立在专用行道上因此 UE从空闲模式进入 CELL— DCH状态， (2)UE处于 CELL— FACH状态下使用公共传输信道通过信道切换后使用专用传输信道 UE从 CELL— FACH状态进入到 CELL— DCH状态；而 CELL— FACH状态则具有如下特征 :1、没有给 UE分配专用传输信道， 2、 UE连续监听一个下行 FACH 信道， 3、为 UE分配了一个默认的上行公共信道或上行共享传输信道例如 RACH 使之能够在接入过程中的任何时间内使用， 4、 UE的位置在小区级为 UTRAN 所知具体为 UE最近一次发起小区更新时报告的小区；在 CELL— FACH子状态 UE执行下面的动作: 1、监听一个 FACH, 2、监听当前服务小区的 BCH传输信道解码***信息消息， 3、在小区变为另一个 UTRA小区时发起一个小区更新过程， 4、除非选择了一个新小区否则使用在当前小区中分配的 C-RNTI作为公共传输信道上的 UE标识， 5、在 RACH上传送上行控制信令和小数据包；在 CELL— FACH状态下，如果数据业务在一段时间里未被激活， UE将进入 CELL— PCH状态以减少功率的损耗，并且当 UE暂时脱离 CELL— PCH状态执行小区更新，更新完成后如果 UE和网络侧均无数据传输需求，它将返回 CELL PCH, 以上为本领域的公知常识，不再赘述。 Those skilled in the art should know that the UE is generally in two states: idle mode (Idle) and connection mode, and the UE includes the following states in the connection mode: CELL_DCH state, CELL_FACH state, CELL_PCH state, URA - PCH state, wherein the CELL_DCH state has the following characteristics: 1. A dedicated physical channel is allocated to the UE in the uplink and downlink, 2. The cell in which the UE is located can be known according to the current active set of the UE, 3. The UE can use the dedicated Transport channel downlink/uplink shared transport channel or a combination of these transport channels; the UE enters the CELL_DCH state by the following two methods: (1) The RRC connection is established on the dedicated road in the idle mode, so the UE enters the CELL from the idle mode. DCH state, (2) The UE is in the CELL_FACH state and uses the dedicated transport channel to switch from the CELL-FACH state to the CELL-DCH state after using the common transport channel. The CELL-FACH state has the following characteristics: The UE is not assigned a dedicated transport channel, 2. The UE continuously listens to a downlink FACH. Channel 3, the UE is assigned a default uplink common channel or an uplink shared transport channel, such as RACH, so that it can be used at any time in the access process. 4. The location of the UE is known to the UTRAN at the cell level. The cell that was reported when the cell update was last initiated; in the CELL-FACH sub-state, the UE performs the following actions: 1. Listening to a FACH, 2. Listening to the BCH transport channel decoding system information message of the current serving cell, 3. Changing the cell into another cell When a UTRA cell initiates a cell update procedure, 4, unless a new cell is selected, the C-RNTI allocated in the current cell is used as the UE identity on the common transport channel, 5. The uplink control signaling is transmitted on the RACH and small. In the CELL-FACH state, if the data service is not activated for a period of time, the UE will enter the CELL-PCH state to reduce the power loss, and when the UE temporarily leaves the CELL-PCH state to perform cell update, after the update is completed. If there is no data transmission requirement on both the UE and the network side, it will return CELL PCH. The above is common knowledge in the field, and will not be described again.

步骤 102、根据 UE的信道参数，分别对每个 UE的上行信道进行监听，获得 UE对宏基站的上行干扰量。 Step 102: Monitor each uplink channel of each UE according to the channel parameter of the UE, and obtain an uplink interference amount of the UE to the macro base station.

步骤 103、根据 UE对宏基站的上行干扰量，从所述 UE中确定待降低发送功率的目标 UE。 Step 103: Determine, according to an uplink interference amount of the macro base station by the UE, a target UE that needs to reduce the transmission power from the UE.

步骤 104、将目标 UE通知微基站，以便微基站降低目标 UE的发送功率。在驻留在微基站的服务小区中的所有 UE中，处于 Cell— DCH态或处于 CELL— FACH态的 UE才会对宏基站产生干扰，所以本实施例所述的 UE是指驻留在微基站的服务小区中且处于 Cell— DCH态或的 CELL— FACH态的 UE。在本实施例中，宏基站仅对驻留在微基站的服务小区中且处于 Cell— DCH态或的 CELL— FACH态的 UE进行处理，而不是对所有 UE都进行处理，有利于减轻宏基站的负担。 Step 104: Notify the target UE to the micro base station, so that the micro base station reduces the transmission power of the target UE. In all UEs in the serving cell of the micro base station, the UE in the Cell_DCH state or in the CELL-FACH state will cause interference to the macro base station, so the UE described in this embodiment refers to staying in the micro A UE in the serving cell of the base station and in the Cell_DCH state or the CELL-FACH state. In this embodiment, the macro base station processes only the UEs that are in the serving cell of the micro base station and are in the CELL-FACH state of the Cell-DCH state or the CELL-FACH state, instead of processing all the UEs, which is beneficial to alleviating the macro base station. The burden.

在本实施例中， UE的信道参数主要是指宏基站对 UE的上行信道进行监听所需的信息，至少包括 UE的标识（ ID )、 UE使用的扰码和 UE使用的信道化码。可选的， UE的信道参数还可以包括： UE驻留微小区的 ID、 UE使用的调制方式等。 In this embodiment, the channel parameter of the UE mainly refers to information required for the macro base station to listen to the uplink channel of the UE, and at least includes the identifier (ID) of the UE, the scrambling code used by the UE, and the channelization code used by the UE. Optionally, the channel parameter of the UE may further include: an ID of the UE camping on the micro cell, a modulation mode used by the UE, and the like.

宏基站获取驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的所有 UE的信道参数之后，根据每个 UE的信道参数，分别对每个 UE的上行信道进行监听。具体的，宏基站可以根据 UE的 ID和 /或 UE驻留小区的 ID来确定 UE, 然后根据 UE使用的扰码、信道化码等信息，检测接收到的信号中是否包含该 UE的上行发送信号。可选的，如果 UE的信道参数还包括 UE使用的调制方式，则宏基站可以根据信道参数还包括 UE使用的调制方式这一信息，进一步确定接收到的信号中包含 UE的上行发送信号。然后，宏基站计算获得每个 UE对宏基站的上行干扰量。具体的，宏基站在检测到所接收的信号中包含 UE的上行发送信号后，可以将 UE的上行发送信号的接收信号功率作为该 UE对宏基站的上行干扰量。 After obtaining the channel parameters of all the UEs in the serving cell of the micro base station and in the CELL-DCH state or in the CELL-FACH state, the macro base station separately monitors the uplink channel of each UE according to the channel parameters of each UE. . Specifically, the macro base station may determine the UE according to the ID of the UE and/or the ID of the UE camped cell, and then detect and receive according to the scrambling code, channelization code, and the like used by the UE. Whether the uplink transmission signal of the UE is included in the signal. Optionally, if the channel parameter of the UE further includes a modulation mode used by the UE, the macro base station may further determine, according to the channel parameter, the information about the modulation mode used by the UE, that the received signal includes the uplink transmission signal of the UE. Then, the macro base station calculates the uplink interference amount of each UE to the macro base station. Specifically, after detecting that the received signal includes the uplink transmission signal of the UE, the macro base station may use the received signal power of the uplink transmission signal of the UE as the uplink interference amount of the UE to the macro base station.

在获得每个 UE对宏基站的上行干扰量后，宏基站就可以判断每个 UE对宏基站的干扰程度，并将每个 UE对宏基站的上行干扰量与预设的干扰量门限进行比较；如果 UE对宏基站的上行干扰量大于预设干扰量门限，说明该 UE对宏基站的干扰较为严重，需要降低该 UE的发送功率；如果该 UE对宏基站的上行干扰量小于或等于预设干扰量门限，说明该 UE对宏基站的干扰不是很严重，则该 UE的发送功率可以不用降低。基于此，宏基站可以将所有处于 CELL-DCH 态或处于 CELL— FACH态的 UE中对宏基站的上行干扰量大于预设干扰量门限的 UE作为待降低发送功率的目标 UE。在此说明，这里的目标 UE可以是一个，也可以是多个。这里的预设干扰量门限的具体数值可以根据实际应用场景而定，通过设置干扰量门限可以仅降低所有 UE中对宏基站干扰较为严重的部分 UE的发送功率，一方面有利于减轻宏基站和微基站的处理负担，另一方面有利于充分利用上行资源。 After obtaining the uplink interference amount of each UE to the macro base station, the macro base station can determine the interference degree of each UE to the macro base station, and compare the uplink interference amount of each UE to the macro base station and the preset interference amount threshold. If the uplink interference of the UE to the macro base station is greater than the preset interference threshold, the interference of the UE to the macro base station is serious, and the transmission power of the UE needs to be reduced; if the uplink interference of the UE to the macro base station is less than or equal to the pre- The interference threshold is set to indicate that the interference of the UE to the macro base station is not serious, and the transmission power of the UE may not be reduced. Based on this, the macro base station can use all UEs that are in the CELL-DCH state or in the CELL-FACH state to the macro base station with the uplink interference amount greater than the preset interference threshold as the target UE to be reduced. Here, the target UE here may be one or multiple. The specific value of the preset interference threshold may be determined according to the actual application scenario. By setting the interference threshold, only the transmission power of some UEs with severe interference to the macro base station in all UEs may be reduced, which is beneficial to alleviate the macro base station and The processing load of the micro base station, on the other hand, is advantageous for making full use of uplink resources.

接着，宏基站将所确定出的目标 UE发送给微基站，以便于微基站降低目标 UE的发送功率。 Then, the macro base station sends the determined target UE to the micro base station, so that the micro base station reduces the transmission power of the target UE.

由上述可见，在本实施例中，宏基站根据驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数，分别对每个 UE的上行信道进行监听，确定每个 UE对宏站的干扰量，并从中确定出需要降低发送功率的目标 UE, 然后通知微基站降低目标 UE的发送功率，一方面降低了对宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。 As can be seen from the above, in this embodiment, the macro base station separately monitors the uplink channel of each UE according to the channel parameters of the UE camped in the serving cell of the micro base station and in the CELL-DCH state or in the CELL-FACH state. Determining the amount of interference of each UE to the macro station, and determining a target UE that needs to reduce the transmission power, and then notifying the micro base station to reduce the transmission power of the target UE, thereby reducing interference to the macro base station on the one hand, and It is necessary for the UE that needs to reduce the transmission power to reduce the transmission power, instead of directly reducing the RTWP of the micro base station, which is beneficial to fully utilizing the uplink resources and reducing the waste of uplink resources.

图 2为本发明实施例提供的另一种干扰抑制方法的流程图。如图 2所示，本实施例的方法包括： FIG. 2 is a flowchart of another interference suppression method according to an embodiment of the present invention. As shown in FIG. 2, the method of this embodiment includes:

步骤 201、宏基站向微基站发送信道参数获取请求。步骤 202、宏基站接收微基站根据该信道参数获取请求返回的信道参数获取响应，该信道参数获取响应携带有驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。 Step 201: The macro base station sends a channel parameter acquisition request to the micro base station. Step 202: The macro base station receives a channel parameter acquisition response returned by the micro base station according to the channel parameter acquisition request, where the channel parameter acquisition response carries the camped cell in the micro base station and is in the CELL-DCH state or in the CELL-FACH state. Channel parameters of the UE.

在本实施例中，所述 UE是指驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE。所述 UE的信道参数至少包括： UE 的标识（ID ) 、 UE使用的扰码和 UE使用的信道化码。可选的， UE的信道参数还可以包括： UE驻留微小区的 ID、 UE使用的调制方式等。 In this embodiment, the UE refers to a UE that resides in a serving cell of a micro base station and is in a CELL-DCH state or in a CELL-FACH state. The channel parameters of the UE include at least: an identifier (ID) of the UE, a scrambling code used by the UE, and a channelization code used by the UE. Optionally, the channel parameter of the UE may further include: an ID of the UE camping on the micro cell, a modulation mode used by the UE, and the like.

可选的，宏基站可以在确定宏基站的 RTWP大于预设功率门限时，向微基站发送信道参数获取请求，然后接收微基站发送的信道参数获取响应。其中，预设功率门限是在网络初始部署时配置的，用于衡量宏基站的上行负载的程度。本实施例对预设功率门限的数值不做限定，例如可以参照有关协议或标准对该功率门限的定义。宏基站的 RTWP大于预设功率门限说明宏基站的负载较重，此时对驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE带来的干扰的容忍度较差，需要进行干扰抑制。具体的，宏基站可以测量宏基站的 RTWP, 并判断测量到的 RTWP是否大于预设功率门限，当判断出 RTWP大于预设功率门限时，即在需要抑制干扰时，通过 Iub接口向微基站发送信道参数获取请求，请求获取驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数，这样可以减少宏基站和微基站之间的交互，有利于节约资源。如果宏基站的 RTWP小于或等于预设功率门限，说明宏基站的负载较轻，可以容忍驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE带来的干扰，所以可以不用抑制任何 UE的发送功率，有利于提高上行资源的利用率。 Optionally, the macro base station may send a channel parameter acquisition request to the micro base station when determining that the RTWP of the macro base station is greater than a preset power threshold, and then receive a channel parameter acquisition response sent by the micro base station. The preset power threshold is configured during initial network deployment and is used to measure the uplink load of the macro base station. In this embodiment, the value of the preset power threshold is not limited. For example, the definition of the power threshold may be referred to by a relevant protocol or standard. The RTWP of the macro base station is greater than the preset power threshold, indicating that the macro base station has a heavy load, and the tolerance of the UE that resides in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state is tolerated. Poor, interference suppression is required. Specifically, the macro base station may measure the RTWP of the macro base station, and determine whether the measured RTWP is greater than a preset power threshold. When it is determined that the RTWP is greater than a preset power threshold, that is, when the interference needs to be suppressed, the macro base station sends the ICMP interface to the micro base station. The channel parameter acquisition request requests the acquisition of the channel parameters of the UE that is in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state, so that the interaction between the macro base station and the micro base station can be reduced, which is beneficial to saving Resources. If the RTWP of the macro base station is less than or equal to the preset power threshold, the bearer of the macro base station is light, and the interference caused by the UE camping in the serving cell of the micro base station and in the CELL-DCH state or in the CELL-FACH state can be tolerated. Therefore, it is not necessary to suppress the transmission power of any UE, which is advantageous for improving the utilization of uplink resources.

步骤 203、宏基站根据每个 UE的信道参数，分别对每个 UE的上行信道进行监听，获得 UE对宏基站的上行干扰量。 Step 203: The macro base station separately monitors an uplink channel of each UE according to a channel parameter of each UE, and obtains an uplink interference amount of the UE to the macro base station.

步骤 204、宏基站根据 UE对宏基站的上行干扰量，从所有 UE中确定待降低发送功率的目标 UE。 Step 204: The macro base station determines, from all UEs, the target UE to be reduced in transmit power according to the uplink interference amount of the UE to the macro base station.

步骤 205、宏基站将目标 UE通知微基站，以便微基站降低目标 UE的发送功率。 Step 205: The macro base station notifies the target UE to the micro base station, so that the micro base station reduces the transmit power of the target UE.

上述步骤 203-步骤 205可参见上述步骤 102-104的描述，在此不再赘述。可选的，宏基站将目标 UE通知微基站，以便微基站降低目标 UE的发送功率的一种实施方式包括：宏基站可以将目标 UE的标识发送给微基站，使微基站根据目标 UE的标识，从驻留在微基站的服务小区中的所有 UE中确定目标 UE, 并降低目标 UE的发送功率。 For the foregoing steps 203 to 205, refer to the description of the above steps 102-104, and details are not described herein again. Optionally, the macro base station notifies the target UE to the micro base station, so that the micro base station reduces the transmission function of the target UE. An embodiment of the method includes: the macro base station may send the identifier of the target UE to the micro base station, so that the micro base station determines the target UE from all UEs in the serving cell of the micro base station according to the identifier of the target UE, and reduces the target UE. The transmit power of the target UE.

可选的，宏基站将目标 UE的标识发送给微基站，使微基站根据目标 UE的标识，从驻留在微基站的服务小区中的所有 UE中确定目标 UE, 并降低目标 UE 的发送功率的一种实施方式包括：宏基站在确定目标 UE之后，将目标 UE的标识和目标 UE对宏基站的上行干扰量发送给微基站，以使微基站根据目标 UE的标识，从驻留微基站的服务小区中的所有 UE中确定目标 UE,根据目标 UE对宏基站的上行干扰量确定发送功率降低量，并根据所述发送功率降低量降低目标 UE的发送功率。 Optionally, the macro base station sends the identifier of the target UE to the micro base station, so that the micro base station determines the target UE from all UEs in the serving cell of the micro base station according to the identifier of the target UE, and reduces the transmit power of the target UE. An embodiment of the present invention includes: after determining the target UE, the macro base station sends the identifier of the target UE and the uplink interference amount of the target UE to the macro base station to the micro base station, so that the micro base station proceeds from the resident micro base station according to the identifier of the target UE. The target UE is determined among all the UEs in the serving cell, and the transmission power reduction amount is determined according to the uplink interference amount of the target base station to the macro base station, and the transmission power of the target UE is reduced according to the transmission power reduction amount.

其中，宏基站向微基站发送目标 UE的标识的过程与宏基站向微基站发送目标 UE对宏基站的上行干扰量的过程可以是两个独立的过程。较为优选的，宏基站可以将目标 UE的标识和目标 UE对宏基站的上行干扰量在一个过程中同时发送给微基站。 The process of the macro base station transmitting the identity of the target UE to the micro base station and the process of the macro base station transmitting the uplink interference amount of the target UE to the macro base station to the micro base station may be two independent processes. Preferably, the macro base station can simultaneously send the identifier of the target UE and the uplink interference amount of the target UE to the macro base station to the micro base station in one process.

其中，宏基站通过 Iub接口将目标 UE的标识和目标 UE对宏基站的上行干扰量发送给微基站。 The macro base station sends the identifier of the target UE and the uplink interference of the target UE to the macro base station to the micro base station through the Iub interface.

其中，微基站可以将目标 UE对宏基站的上行干扰量作为降低目标 UE的发送功率的一个参考因素，例如，如果目标 UE对宏基站的上行干扰量较大，说明干扰较严重，则可以将目标 UE的发送功率降低较大值；如果目标 UE对宏基站的上行干扰量相对较小，说明干扰相对较轻，则可以将目标 UE的发送功率降低较小值。 The micro base station may use the uplink interference amount of the target UE to the macro base station as a reference factor for reducing the transmission power of the target UE. For example, if the target UE has a large uplink interference amount to the macro base station, indicating that the interference is serious, the The transmit power of the target UE is reduced by a large value. If the uplink interference of the target UE to the macro base station is relatively small, indicating that the interference is relatively light, the transmit power of the target UE may be reduced by a small value.

由上述可见，在本实施例中，宏基站请求驻留微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数，微基站根据宏基站的请求将驻留微基站的服务小区中所有处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数发送给宏基站，宏基站根据 UE的信道参数，分别对 UE的上行信道进行监听，确定每个 UE对宏站的干扰量，并从中确定出需要降低发送功率的目标 UE, 并通知微基站降低目标 UE的发送功率，一方面降低了对宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE降低发送功率，而像那些距离宏基站相对较远的 UE可以不用降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。图 3为本发明实施例提供的又一种干扰抑制方法的流程图。如图 3所示，本实施例的方法包括： As can be seen from the above, in this embodiment, the macro base station requests the channel parameters of the UE in the serving cell of the micro base station and in the CELL-DCH state or in the CELL-FACH state, and the micro base station camps on the request of the macro base station. All the channel parameters of the UE in the CELL-DCH state or in the CELL-FACH state of the serving cell of the base station are sent to the macro base station, and the macro base station separately monitors the uplink channel of the UE according to the channel parameters of the UE, and determines each UE pair macro. The amount of interference of the station, and determining the target UE that needs to reduce the transmission power, and notifying the micro base station to reduce the transmission power of the target UE, on the one hand, reducing the interference to the macro base station, and on the other hand, only reducing the transmission power The UE reduces the transmission power, and the UEs that are relatively far away from the macro base station may not reduce the transmission power, instead of directly reducing the RTWP of the micro base station, which is beneficial to fully utilize the uplink resources and reduce the waste of uplink resources. FIG. 3 is a flowchart of still another interference suppression method according to an embodiment of the present invention. As shown in FIG. 3, the method in this embodiment includes:

步骤 301、宏基站接收微基站发送的上报信息，该上报信息携带有驻留微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。 Step 301: The macro base station receives the report information sent by the micro base station, where the report information carries the channel parameters of the UE in the serving cell of the micro base station and in the CELL-DCH state or in the CELL-FACH state.

在本实施例中，所述 UE是指驻留微基站的服务小区中且处于 CELL-DCH 态或处于 CELL— FACH态的 UE, 这样可以减少微基站发送给宏基站的信息量，有利于减轻微基站和宏基站的处理负担，有利于节约网络资源。所述 UE的信道参数至少包括 UE的标识（ID )、 UE使用的扰码和 UE使用的信道化码。可选的， UE的信道参数还可以包括： UE驻留微小区的 ID、 UE使用的调制方式等。 In this embodiment, the UE refers to a UE that is in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state, so that the amount of information sent by the micro base station to the macro base station can be reduced, which is beneficial to alleviating The processing burden of the micro base station and the macro base station is conducive to saving network resources. The channel parameters of the UE include at least an identifier (ID) of the UE, a scrambling code used by the UE, and a channelization code used by the UE. Optionally, the channel parameter of the UE may further include: an ID of the UE camping on the micro cell, a modulation mode used by the UE, and the like.

在本实施例中，微基站主动通过与宏基站之间的 Iub接口向宏基站上报驻留微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。可选的，微基站可以周期性的通过其与宏基站之间的 Iub接口向宏基站上报 UE的信道参数。具体的，微基站将 UE的信道参数携带在上报信息中上报给宏基站。相应的，宏基站可以周期性的通过与微基站之间的 Iub接口接收微基站发送的上报信息，然后从中获取 UE的信道参数。 In this embodiment, the micro base station actively reports the channel parameters of the UE in the serving cell of the resident micro base station and in the CELL-DCH state or in the CELL-FACH state to the macro base station through the Iub interface with the macro base station. Optionally, the micro base station can periodically report the channel parameters of the UE to the macro base station through the Iub interface between the micro base station and the macro base station. Specifically, the micro base station carries the channel parameter of the UE in the report information and reports it to the macro base station. Correspondingly, the macro base station can periodically receive the report information sent by the micro base station through the Iub interface with the micro base station, and then obtain the channel parameters of the UE from the UE.

步骤 302、宏基站根据每个 UE的信道参数，分别对每个 UE的上行信道进行监听，获得 UE对宏基站的上行干扰量。 Step 302: The macro base station separately monitors the uplink channel of each UE according to the channel parameter of each UE, and obtains an uplink interference amount of the UE to the macro base station.

可选的，宏基站可以在确定宏基站的 RTWP大于预设功率门限时，根据每个 UE的信道参数，分别对每个 UE的上行信道进行监听，获得每个 UE对所述宏基站的上行干扰量。其中，宏基站的 RTWP大于预设功率门限说明宏基站的负载较重，此时对驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE带来的干扰的容忍度较差，需要进行干扰抑制。因此，宏基站在确定宏基站的 RTWP大于预设功率门限后，即在需要抑制干扰时，才对每个 UE的上行信道进行监听，并获得每个 UE与对宏基站的上行干扰量；而在宏基站的 RTWP小于或等于预设功率门限时，不进行干扰抑制，可以不用抑制任何 UE的发送功率，一方面可以减轻宏基站的处理负担，另一方面有利于提高上行资源的利用率。 Optionally, the macro base station may, when determining that the RTWP of the macro base station is greater than the preset power threshold, monitor the uplink channel of each UE according to the channel parameter of each UE, and obtain an uplink of each macro base station by each UE. The amount of interference. The RTWP of the macro base station is greater than the preset power threshold, indicating that the macro base station has a heavy load, and the interference caused by the UE that resides in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state is Tolerance is poor and interference suppression is required. Therefore, after determining that the RTWP of the macro base station is greater than the preset power threshold, that is, when the interference needs to be suppressed, the macro base station monitors the uplink channel of each UE, and obtains the uplink interference amount of each UE and the macro base station; When the RTWP of the macro base station is less than or equal to the preset power threshold, the interference suppression is not performed, and the transmission power of any UE may not be suppressed. On the one hand, the processing load of the macro base station may be reduced, and on the other hand, the utilization of uplink resources may be improved.

步骤 303、宏基站根据 UE对宏基站的上行干扰量，从所有 UE中确定待降低发送功率的目标 UE。步骤 304、宏基站将目标 UE发送给微基站，以便微基站降低目标 UE的发送功率。 Step 303: The macro base station determines, according to the uplink interference amount of the macro base station by the UE, the target UE to be reduced in transmission power from all the UEs. Step 304: The macro base station sends the target UE to the micro base station, so that the micro base station reduces the transmission power of the target UE.

上述步骤 302-步骤 304的其他相关描述可参见上述步骤 102-104的描述，在此不再赘述。 For other related descriptions of the foregoing steps 302-304, refer to the description of the above steps 102-104, and details are not described herein again.

可选的，宏基站将目标 UE发送给微基站，以便微基站降低目标 UE的发送功率的一种实施方式包括：宏基站在确定目标 UE之后，可以将目标 UE的标识发送给微基站，以便微基站根据目标 UE的标识，从驻留微基站的服务小区中的所有 UE中确定目标 UE, 并降低目标 UE的发送功率。 Optionally, the method for the macro base station to send the target UE to the micro base station, so that the micro base station reduces the transmit power of the target UE, includes: after determining the target UE, the macro base station may send the identifier of the target UE to the micro base station, so that The micro base station determines the target UE from all the UEs in the serving cell of the camping micro base station according to the identifier of the target UE, and reduces the transmission power of the target UE.

可选的，宏基站将目标 UE的标识发送给微基站，以便微基站根据目标 UE 的标识，从驻留微基站的服务小区中的所有 UE中确定目标 UE, 并降低目标 UE 的发送功率的另一种实施方式包括：宏基站在确定目标 UE之后，将目标 UE的标识和目标 UE对宏基站的上行干扰量发送给微基站，以便微基站根据目标 UE 的标识，从驻留微基站的服务小区中的所有 UE中确定目标 UE, 根据目标 UE 对宏基站的上行干扰量确定发送功率降低量，并根据发送功率降低量降低目标 UE的发送功率。关于该部分的描述可参见图 2所示实施例中的相应描述，在此不再赘述。 Optionally, the macro base station sends the identifier of the target UE to the micro base station, so that the micro base station determines the target UE from all UEs in the serving cell of the camping micro base station according to the identifier of the target UE, and reduces the transmit power of the target UE. Another embodiment includes: after determining the target UE, the macro base station sends the identifier of the target UE and the uplink interference amount of the target UE to the macro base station to the micro base station, so that the micro base station proceeds from the resident micro base station according to the identifier of the target UE. The target UE is determined among all the UEs in the serving cell, and the transmission power reduction amount is determined according to the uplink interference amount of the target base station to the macro base station, and the transmission power of the target UE is reduced according to the transmission power reduction amount. For a description of this part, refer to the corresponding description in the embodiment shown in FIG. 2, and details are not described herein again.

由上述可见，在本实施例中，微基站主动向宏基站上报驻留微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数，宏基站根据 UE的信道参数，对 UE的上行信道进行监听，确定 UE对宏站的干扰量，从中确定出需要降低发送功率的目标 UE, 并通知微基站降低目标 UE的发送功率，一方面降低了对宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE 降低发送功率，而像那些距离宏基站相对较远的 UE可以不用降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。 It can be seen that, in this embodiment, the micro base station actively reports the channel parameters of the UE in the serving cell of the camping micro base station and is in the CELL-DCH state or in the CELL-FACH state to the macro base station, and the macro base station according to the channel parameter of the UE And monitoring the uplink channel of the UE, determining the interference amount of the UE to the macro station, determining the target UE that needs to reduce the transmission power, and notifying the micro base station to reduce the transmission power of the target UE, and reducing the interference to the macro base station on the one hand, On the other hand, since only the UE that needs to reduce the transmission power reduces the transmission power, the UEs that are relatively far away from the macro base station can reduce the transmission power instead of directly reducing the RTWP of the micro base station, thereby facilitating the full utilization of the uplink resources. Reduce the waste of uplink resources.

图 4为本发明实施例提供的又一种干扰抑制方法的流程图。如图 4所示，本实施例的方法包括： FIG. 4 is a flowchart of still another interference suppression method according to an embodiment of the present invention. As shown in FIG. 4, the method of this embodiment includes:

步骤 401、发送驻留微基站的服务小区中的所有 UE的信道参数给宏基站，以使宏基站根据所述信道参数对每个 UE的上行信道进行监听，并根据监听获取的 UE对宏基站的上行干扰量，从所述 UE中确定待降低发送功率的目标 UE, 所述 UE处于 CELL-DCH态，或处于 CELL— FACH态。步骤 402、根据宏基站通知的目标 UE, 降低目标 UE的发送功率。本实施例是从微基站的角度进行的描述。关于宏基站从驻留微基站的服务消息中且处于 CELL-DCH态或处于 CELL— FACH态的 UE中确定出待降低发送功率的目标 UE的过程可参见上述图 1-图 3所示实施例的描述，在此不再赘述。 Step 401: Send a channel parameter of all UEs in the serving cell that resides in the micro base station to the macro base station, so that the macro base station monitors the uplink channel of each UE according to the channel parameter, and acquires the UE to the macro base station according to the interception. The amount of uplink interference, determining, from the UE, a target UE to be reduced in transmit power, the UE being in a CELL-DCH state, or in a CELL-FACH state. Step 402: Reduce the transmit power of the target UE according to the target UE notified by the macro base station. This embodiment is a description from the perspective of a micro base station. For the process of determining, by the macro base station, the target UE to be reduced in the CELL-DCH state or the UE in the CELL-FACH state, the macro base station can refer to the foregoing embodiment shown in FIG. 1 to FIG. The description is not repeated here.

可选的，步骤 401的一种实施方式包括：微基站接收宏基站发送的信道参数获取请求，所述信道参数获取请求是宏基站确定宏基站的 RTWP大于预设功率门限后发送的；微基站根据该信道参数获取请求，向宏基站发送信道参数获取响应，该信道参数获取响应携带有驻留在所述微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。 Optionally, an implementation manner of the step 401 includes: receiving, by the micro base station, a channel parameter acquisition request sent by the macro base station, where the channel parameter acquisition request is sent by the macro base station after determining that the RTWP of the macro base station is greater than a preset power threshold; And sending, according to the channel parameter acquisition request, a channel parameter acquisition response to the macro base station, where the channel parameter acquisition response carries a channel of the UE that is camped in the serving cell of the micro base station and is in a CELL-DCH state or in a CELL-FACH state. parameter.

可选的，步骤 401的另一种实施方式包括：微基站主动向宏基站发送上报信息，该上报信息携带有驻留在所述微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。可选的，微基站可以周期性的向宏基站发送上报信息。 Optionally, another implementation manner of the step 401 includes: the micro base station actively sends the report information to the macro base station, where the report information is carried in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL. Channel parameters of the UE in the FACH state. Optionally, the micro base station may periodically send the reporting information to the macro base station.

在此说明，微基站与宏基站通过 Iub接口进行通信。 Here, the micro base station communicates with the macro base station through the Iub interface.

可选的，步骤 402的一种实施方式包括：微基站接收宏基站发送的目标 UE 的标识，微基站根据目标 UE的标识，从驻留在微基站的服务小区中的所有 UE 中，确定所述目标 UE, 并降低目标 UE的发送功率。 Optionally, an implementation manner of step 402 includes: receiving, by the micro base station, an identifier of the target UE sent by the macro base station, where the micro base station determines, according to the identifier of the target UE, from all UEs that are in the serving cell of the micro base station, The target UE is described, and the transmission power of the target UE is reduced.

其中，微基站在确定目标 UE之后，降低目标 UE的发送功率的一种实施方式包括：微基站将目标 UE的标识加入限制集合，降低目标 UE的调度授权值；微基站将降低后的调度授权值发送给目标 UE, 以降低目标 UE的发送功率。具体的，微基站可以降低目标 UE的绝对授权（Absolute Grant, 筒称为 AG )值，然后将降低后的 AG值发送给目标 UE, 以降低目标 UE的发送功率。或者，微基站可以向目标 UE发送表示 "down" (即下降功率 )的相对授权（ Relative Grant, 筒称为 RG )值，以降低目标 UE的发送功率。 An implementation manner of reducing the transmission power of the target UE by the micro base station after determining the target UE includes: adding, by the micro base station, the identifier of the target UE to the restriction set, and reducing the scheduling authorization value of the target UE; and the micro base station lowering the scheduling authorization. The value is sent to the target UE to reduce the transmit power of the target UE. Specifically, the micro base station can reduce the absolute grant (absolute grant) value of the target UE, and then send the reduced AG value to the target UE to reduce the transmit power of the target UE. Alternatively, the micro base station may send a relative grant (relative Grant, referred to as RG) value indicating "down" (ie, down power) to the target UE to reduce the transmit power of the target UE.

其中，微基站在确定目标 UE之后，降低目标 UE的发送功率的另一种实施方式包括：微基站向目标 UE发送功率下降指示，以降低目标 UE的发送功率。可选的，微基站发送的功率下降指示可以是表示 "down" 的 RG值。具体的，微基站通过相对授权信道（ E-DCH Relative Grant Channel, 筒称为 E-RGCH ) 向目标 UE发送表示 "down" 的 RG值，以降低目标 UE的发送功率。 Another implementation manner for the micro base station to reduce the transmit power of the target UE after determining the target UE includes: the micro base station sends a power drop indication to the target UE to reduce the transmit power of the target UE. Optionally, the power down indication sent by the micro base station may be an RG value indicating "down". Specifically, the micro base station sends an RG value indicating "down" to the target UE through an E-DCH Relative Grant Channel (E-DCH Relative Grant Channel), so as to reduce the transmission power of the target UE.

可选的，由于微基站将目标 UE的发送功率降低了，为了保证对目标 UE的业务质量，微基站可以提高对目标 UE的调度概率。 Optionally, since the micro base station reduces the transmit power of the target UE, in order to ensure the target UE Service quality, the micro base station can improve the scheduling probability for the target UE.

在该实施方式中，微基站上预先设置一个限制集合，在该限制集合中的 UE标识所标识的 UE, 其调度授权值保持不变或降低，不能升高。当微基站接收到宏基站发送的目标 UE的标识后，首先将目标 UE的标识加入该限制集合中，以限制目标 UE的调度授权值的升高。然后，微基站根据目标 UE的标识降低目标 UE的调度授权值并将降低后的调度授权值发送给目标 UE, 以降低目标 UE的发送功率；或者，微基站向目标 UE发送功率下降指示，以降低目标 UE 的发送功率。 In this embodiment, a restriction set is preset on the micro base station, and the UE identified by the UE identifier in the restriction set keeps the scheduling authorization value unchanged or decreased and cannot be raised. After receiving the identifier of the target UE sent by the macro base station, the micro base station first adds the identifier of the target UE to the restriction set to limit the increase of the scheduling authorization value of the target UE. Then, the micro base station reduces the scheduling grant value of the target UE according to the identifier of the target UE, and sends the reduced scheduling grant value to the target UE to reduce the transmission power of the target UE. Alternatively, the micro base station sends a power down indication to the target UE, to Reduce the transmit power of the target UE.

进一步可选的，在步骤 402中，微基站降低目标 UE的调度授权值之前，还可以包括：微基站接收宏基站发送的目标 UE对宏基站的上行干扰量。基于此，微基站降低目标 UE的调度授权值包括：微基站目标 UE对宏基站的上行干扰量，确定发送功率降低量，根据所述发送功率降低量，降低目标 UE的调度授权值。具体的，微基站根据目标 UE的标识识别出需要对目标 UE的发送功率进行降低处理，同时将目标 UE对宏基站的上行干扰量作为参考因素，以确定对目标 UE的发送功率的降低多少（即发送功率降低量）。例如，如果目标 UE对宏基站的上行干扰量较大，说明干扰较严重，则可以将目标 UE的发送功率降低较大值；如果目标 UE对宏基站的上行干扰量相对较小，说明干扰相对较轻，则可以将目标 UE的发送功率降低较小值。 Further, in step 402, before the micro base station lowers the scheduling grant value of the target UE, the micro base station may further include: the micro base station receiving the uplink interference amount of the target UE to the macro base station sent by the macro base station. Based on this, the micro base station lowers the scheduling grant value of the target UE, including: the uplink interference amount of the macro base station target UE to the macro base station, determining the transmission power reduction amount, and reducing the scheduling authorization value of the target UE according to the transmission power reduction amount. Specifically, the micro base station identifies, according to the identifier of the target UE, that the transmission power of the target UE needs to be reduced, and the uplink interference amount of the target UE to the macro base station is used as a reference factor to determine how much the transmission power of the target UE is reduced. That is, the amount of transmission power reduction). For example, if the amount of uplink interference of the target UE to the macro base station is large, indicating that the interference is severe, the transmission power of the target UE may be decreased by a large value; if the uplink interference amount of the target UE to the macro base station is relatively small, the interference is relatively If it is lighter, the transmission power of the target UE can be reduced by a small value.

基于上述，微基站还设置有将目标 UE的标识从限制集合中删除的触发条件，以便于将目标 UE的标识从限制集合中删除。基于此，微基站可以判断是否满足将目标 UE的标识从限制集合中删除的触发条件，当判断结果为满足时，微基站将目标 UE的标识从限制集合中删除。当目标 UE的标识从限制集合中删除后，意味着解除了对目标 UE的发送功率的限制。 Based on the above, the micro base station is further provided with a trigger condition for deleting the identity of the target UE from the restricted set, so as to delete the identity of the target UE from the restricted set. Based on this, the micro base station can determine whether the trigger condition for deleting the identifier of the target UE from the restricted set is satisfied. When the judgment result is satisfied, the micro base station deletes the identifier of the target UE from the restricted set. When the identity of the target UE is deleted from the restricted set, it means that the restriction on the transmission power of the target UE is released.

在一可选实施方式中，所述触发条件为目标 UE对所述宏基站的上行干扰量小于或等于预设干扰量门限。则微基站判断是否满足将秒 UE的标识从限制集合中删除的触发条件的过程包括：微基站判断目标 UE对宏基站的上行干扰量是否小于或等于预设干扰量门限，如果判断结果为是，则确定满足触发条件。 In an optional implementation manner, the triggering condition is that the uplink interference amount of the target UE to the macro base station is less than or equal to a preset interference amount threshold. The process of determining, by the micro base station, whether the trigger condition for deleting the identifier of the second UE from the restricted set is met: the micro base station determines whether the uplink interference amount of the target UE to the macro base station is less than or equal to a preset interference threshold, and if the judgment result is yes , then it is determined that the trigger condition is met.

在一可选实施方式中，所述触发条件为所述目标 UE的标识加入到所述限制集合的时间达到指定时间长度。则微基站判断是否满足将目标 UE的标识从限制集合中删除的触发条件的过程包括：微基站判断目标 UE的标识加入到限制集合的时间是否达到指定时间长度，如果判断结果为达到，则确定满足触发条件。具体的，微基站可以预先设置一个定时器，用于对目标 UE的标识在限制集合中的时间进行计时，当定时器定时结束（即目标 UE的标识在限制集合中的时间达到指定时间长度）时，微基站将目标 UE的标识从限制集合中删除。 In an optional implementation manner, the triggering condition is that the identifier of the target UE is added to the restricted set for a specified length of time. The process of determining, by the micro base station, whether the trigger condition for deleting the identifier of the target UE from the restricted set is met includes: determining, by the micro base station, that the identifier of the target UE is added to the limit Whether the time of the collection is up to the specified length of time, and if the judgment result is reached, it is determined that the trigger condition is satisfied. Specifically, the micro base station may preset a timer for timing the time of the identifier of the target UE in the restricted set, when the timer ends (that is, the time of the identifier of the target UE in the restricted set reaches a specified length of time) At the time, the micro base station deletes the identity of the target UE from the restricted set.

在一可选实施方式中，所述触发条件为所述目标 UE退出 Cell-DCH态或 In an optional implementation manner, the triggering condition is that the target UE exits the Cell-DCH state or

CELL— FACH态。则微基站判断是否满足将目标 UE的标识从限制集合中删除的触发条件的过程包括：微基站判断目标 UE是否退出 Cell-DCH态或 CELL— FACH 态，如果目标 UE退出 Cell-DCH态或 CELL— FACH态，则确定满足所述触发条件。标 UE退出 Cell-DCH态或 CELL— FACH态时，微基站将目标 UE的标识从限制集合中删除。 CELL—FACH state. The process of determining, by the micro base station, whether the trigger condition for deleting the identifier of the target UE from the restricted set is met includes: determining, by the micro base station, whether the target UE exits the Cell-DCH state or the CELL_FACH state, if the target UE exits the Cell-DCH state or CELL – FACH state, then it is determined that the trigger condition is met. When the UE exits the Cell-DCH state or the CELL-FACH state, the micro base station deletes the identity of the target UE from the restricted set.

由上述可见，在本实施例中，微基站向宏基站发送驻留微基站的服务小区中且处于 Cell-DCH态或 CELL— FACH态的 UE的信道参数，使得宏基站根据 UE 的信道参数，分别对 UE的上行信道进行监听，获取每个 UE对宏基站的上行干扰量，根据所述上行干扰量确定出需要降低发送功率的目标 UE, 并将目标 UE 发送给微基站，微基站对目标 UE的发送功率进行降低处理，一方面降低了对宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE降低发送功率，而像那些距离宏基站相对较远的 UE可以不用降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。 It can be seen that, in this embodiment, the micro base station sends the channel parameter of the UE in the serving cell of the micro base station and in the Cell-DCH state or the CELL-FACH state to the macro base station, so that the macro base station according to the channel parameter of the UE, The uplink channel of the UE is separately monitored, the uplink interference amount of each UE to the macro base station is obtained, the target UE that needs to reduce the transmission power is determined according to the uplink interference quantity, and the target UE is sent to the micro base station, and the micro base station targets the target. The transmission power of the UE is reduced, which reduces the interference to the macro base station on the one hand, and reduces the transmission power only for the UE that needs to reduce the transmission power on the other hand, and the UEs that are relatively far from the macro base station may not need to reduce the transmission. Power, instead of directly reducing the RTWP of the micro base station, is beneficial to make full use of uplink resources and reduce the waste of uplink resources.

图 5为本发明实施例提供的一种宏基站的结构示意图。如图 5所示，本实施例的宏基站包括：获取模块 51、监听模块 52、确定模块 53和通知模块 54。 FIG. 5 is a schematic structural diagram of a macro base station according to an embodiment of the present invention. As shown in FIG. 5, the macro base station of this embodiment includes: an obtaining module 51, a listening module 52, a determining module 53, and a notification module 54.

获取模块 51 , 用于获取驻留微基站的服务小区中的所有 UE的信道参数，其中所述 UE处于 CELL-DCH态，或处于 CELL— FACH态。 The obtaining module 51 is configured to acquire channel parameters of all UEs in the serving cell of the camping micro base station, where the UE is in a CELL-DCH state or in a CELL-FACH state.

监听模块 52, 与获取模块 51连接，用于根据获取模块 51获取的信道参数，分别对每个 UE的上行信道进行监听，获得 UE对本实施例宏基站的上行干扰量。 The monitoring module 52 is connected to the obtaining module 51, and is configured to monitor the uplink channel of each UE according to the channel parameters acquired by the acquiring module 51, and obtain the uplink interference amount of the UE to the macro base station in this embodiment.

确定模块 53 , 与监听模块 52连接，用于根据监听模块 52获得的 UE对本实施例宏基站的上行干扰量，从所述 UE中确定待降低发送功率的目标 UE。 The determining module 53 is connected to the monitoring module 52, and is configured to determine, according to the uplink interference amount of the UE to the present macro base station obtained by the monitoring module 52, the target UE to be reduced in transmission power from the UE.

通知模块 54, 与确定模块 53连接，用于将确定模块 53确定的目标 UE通知微基站，以便微基站降低目标 UE的发送功率。在一可选实施方式中，获取模块 51具体可用于当本实施例宏基站的 RTWP 大于预设功率门限时，向微基站发送信道参数获取请求，并接收微基站根据该信道参数获取请求返回的信道参数获取响应，该信道参数获取响应携带有驻留在所述微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE 的信道参数。 The notification module 54 is connected to the determining module 53 for notifying the target UE determined by the determining module 53 to the micro base station, so that the micro base station reduces the transmission power of the target UE. In an optional implementation, the acquiring module 51 is specifically configured to: when the RTWP of the macro base station in this embodiment is greater than a preset power threshold, send a channel parameter acquisition request to the micro base station, and receive the micro base station according to the channel parameter acquisition request. A channel parameter acquisition response, the channel parameter acquisition response carrying a channel parameter of a UE camping in a serving cell of the micro base station and in a CELL-DCH state or in a CELL-FACH state.

在一可选实施方式中，获取模块 51具体可用于接收微基站发送的上报信息，该上报信息携带有驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。基于此，监听模块 52具体可用于当本实施例宏基站的 RTWP大于预设功率门限时，根据获取模块 51获得的信道参数，分别对每个 UE的上行信道进行监听，获得 UE对本实施例宏基站的上行干扰量。 In an optional implementation, the obtaining module 51 is specifically configured to receive the report information sent by the micro base station, where the report information carries the UE that resides in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state. Channel parameters. Based on this, the monitoring module 52 is specifically configured to: when the RTWP of the macro base station in the embodiment is greater than the preset power threshold, monitor the uplink channel of each UE according to the channel parameters obtained by the obtaining module 51, and obtain the macro base of the UE for the embodiment. The amount of uplink interference at the station.

在一可选实施方式中，通知模块 54具体用于将目标 UE的标识发送给微基站，以便微基站根据目标 UE的标识，从驻留微基站的服务小区中的所有 UE中，确定目标 UE, 并降低目标 UE的发送功率。 In an optional implementation, the notification module 54 is specifically configured to send the identifier of the target UE to the micro base station, so that the micro base station determines the target UE from all UEs in the serving cell of the camping micro base station according to the identifier of the target UE. And reduce the transmit power of the target UE.

进一步，通知模块 54具体用于将目标 UE的标识和目标 UE对本实施例宏基站的上行干扰量，发送给微基站，以便微基站根据目标 UE的标识，从驻留微基站的服务小区中的所有 UE中，确定目标 UE,根据目标 UE对本实施例宏基站的上行干扰量，确定发送功率降低量，并根据所述发送功率降低量降低 UE的发送功率。 Further, the notification module 54 is specifically configured to send the identifier of the target UE and the uplink interference of the target UE to the macro base station of the embodiment to the micro base station, so that the micro base station is in the serving cell of the resident micro base station according to the identifier of the target UE. In all the UEs, the target UE is determined, and the amount of uplink power interference of the macro base station of the embodiment is determined according to the target UE, and the transmission power reduction amount is determined, and the transmission power of the UE is reduced according to the transmission power reduction amount.

在一可选实施方式中，确定模块 53具体可用于将驻留微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE中，对本实施例宏基站的上行干扰量大于预设干扰量门限的 UE作为目标 UE。 In an optional implementation, the determining module 53 is specifically configured to be used in the UE that is in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state. The uplink interference amount of the macro base station in this embodiment is greater than the pre-determination. The UE with the interference threshold is set as the target UE.

在一可选实施方式中，所述 UE的信道参数至少包括： UE的标识 ID、 UE 使用的扰码和 UE使用的信道化码。 In an optional implementation manner, the channel parameter of the UE includes at least: an identifier ID of the UE, a scrambling code used by the UE, and a channelization code used by the UE.

本实施例提供的宏基站的各功能模块可用于执行上述图 1-图 3所示干扰抑制方法实施例的流程，其具体工作原理不再赘述，详见方法实施例的描述。 The function modules of the macro base station provided in this embodiment may be used to perform the process of the foregoing embodiment of the interference suppression method shown in FIG. 1 to FIG. 3. The specific working principle is not described here. For details, refer to the description of the method embodiment.

本实施例提供的宏基站，根据驻留微基站的服务小区中且处于 CELL-DCH 态或处于 CELL— FACH态的 UE的信道参数，分别对 UE的上行信道进行监听，确定 UE对宏基站的上行干扰量，从中确定出需要降低发送功率的目标 UE, 并通知微基站，以便微基站降低这些目标 UE的发送功率，一方面降低了对本实施例宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。 The macro base station provided in this embodiment separately monitors the uplink channel of the UE according to the channel parameters of the UE in the serving cell of the micro base station and in the CELL-DCH state or in the CELL-FACH state, and determines the UE to the macro base station. The uplink interference quantity, from which the target UE that needs to reduce the transmission power is determined, and the micro base station is notified, so that the micro base station reduces the transmission power of the target UEs, on the one hand, the interference to the macro base station of the embodiment is reduced, and on the other hand, It is necessary to reduce the transmission power of the UE to reduce the transmission work. The rate, rather than directly reducing the RTWP of the micro base station, is beneficial to make full use of the uplink resources and reduce the waste of uplink resources.

图 6为本发明实施例提供的另一种宏基站的结构示意图。如图 6所示，本实施例的宏基站包括：通信接口 61、处理器 62和存储器 63。 FIG. 6 is a schematic structural diagram of another macro base station according to an embodiment of the present invention. As shown in FIG. 6, the macro base station of this embodiment includes: a communication interface 61, a processor 62, and a memory 63.

通信接口 61 , 用于获取驻留微基站的服务小区的所有 UE的信道参数，以及在处理器 62从所述 UE中确定出的待降低发送功率的目标 UE后，将目标 U通知微基站，以便微基站降低目标 UE的发送功率。其中，上述驻留微基站的服务小区中的 UE处于 CELL-DCH态，或处于 CELL— FACH态。 a communication interface 61, configured to acquire channel parameters of all UEs of the serving cell camping on the micro base station, and notify the target base station to the micro base station after the processor 62 determines the target UE to be reduced in transmit power from the UE, In order for the micro base station to reduce the transmission power of the target UE. The UE in the serving cell of the camping micro base station is in the CELL-DCH state or in the CELL-FACH state.

存储器 63 , 用于存放程序。具体地，程序可以包括程序代码，所述程序代码包括计算机操作指令。存储器 63可能包含高速 RAM存储器，也可能还包括非易失性存储器（ non-volatile memory ) , 例如至少一个磁盘存储器。 The memory 63 is used to store the program. In particular, the program can include program code, the program code including computer operating instructions. The memory 63 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.

处理器 62, 用于执行程序，以用于根据通信接口 61获取的 UE的信道参数，分别对每个 UE的上行信道进行监听，获得 UE对本实施例宏基站的上行干扰量，以及根据 UE对本实施例宏基站的上行干扰量，从所述 UE中确定待降低发送功率的目标 UE。可选的，处理器 62具体可用于将所述 UE中对本实施例宏基站的上行干扰量大于预设干扰量门限的 UE作为目标 UE。 The processor 62 is configured to execute a program, for performing, according to the channel parameter of the UE acquired by the communication interface 61, separately monitoring an uplink channel of each UE, obtaining an uplink interference amount of the UE to the macro base station of the embodiment, and The uplink interference amount of the macro base station is determined, and the target UE whose transmission power is to be reduced is determined from the UE. Optionally, the processor 62 is specifically configured to use, as the target UE, a UE that has an uplink interference amount of the macro base station in the UE that is greater than a preset interference threshold.

处理器 62可能是一个中央处理器（ Central Processing Unit, 筒称为 CPU ) , 或者是特定集成电路 ( Application Specific Integrated Circuit, 筒称为 ASIC ) , 或者是被配置成实施本发明实施例的一个或多个集成电路。 The processor 62 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one configured to implement an embodiment of the present invention. Multiple integrated circuits.

在一可选实施方式中，处理器 62还用于向通信接口 61提供本实施例宏基站的 RTWP大于预设功率门限的结果。基于此，通信接口 61具体可用于在本实施例宏基站的 RTWP大于预设功率门限时，向微基站发送信道参数获取请求，并接收微基站根据该信道参数获取请求返回的信道参数获取响应，该信道参数获取响应携带有驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。 In an optional implementation, the processor 62 is further configured to provide the communication interface 61 with the result that the RTWP of the macro base station of the embodiment is greater than a preset power threshold. Based on this, the communication interface 61 is specifically configured to: when the RTWP of the macro base station is greater than the preset power threshold, send a channel parameter acquisition request to the micro base station, and receive a channel parameter acquisition response returned by the micro base station according to the channel parameter acquisition request, The channel parameter acquisition response carries a channel parameter of a UE camping in a serving cell of the micro base station and in a CELL-DCH state or in a CELL-FACH state.

在一可选实施方式中，通信接口 61具体可用于接收微基站发送的上报信息，该上报信息携带有驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。 In an optional implementation, the communications interface 61 is specifically configured to receive the reporting information sent by the micro base station, where the reporting information carries the UE that resides in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state. Channel parameters.

基于此，处理器 62具体可用于在本实施例宏基站的 RTWP大于预设功率门限时，根据通信接口 61获取的 UE的信道参数，分别对每个 UE的上行信道进行监听，获得 UE对宏基站的上行干扰量。 Based on this, the processor 62 is specifically configured to perform, according to the channel parameters of the UE acquired by the communication interface 61, the uplink channel of each UE, respectively, when the RTWP of the macro base station is greater than the preset power threshold. Listening, obtaining the uplink interference amount of the UE to the macro base station.

在一可选实施方式中，通信接口 61将目标 UE通知微基站，以便微基站降低目标 UE的发送功率的方式包括：通信接口 61具体用于将目标 UE的标识发送给微基站，以便微基站根据目标 UE的标识，驻留微基站的服务小区中的所有 UE中，确定目标 UE, 并降低目标 UE的发送功率。 In an optional implementation manner, the communication interface 61 notifies the target UE to the micro base station, so that the manner in which the micro base station reduces the transmission power of the target UE includes: the communication interface 61 is specifically configured to send the identifier of the target UE to the micro base station, so that the micro base station According to the identifier of the target UE, among all the UEs in the serving cell of the camping micro base station, the target UE is determined, and the transmission power of the target UE is reduced.

进一步，通信接口 61具体用于将目标 UE的标识和目标 UE对本实施例宏基站的上行干扰量发送给微基站，以便微基站根据目标 UE的标识，从驻留微基站的服务小区中的所有 UE中，确定目标 UE,根据目标 UE对本实施例宏基站的上行干扰量，确定发送功率降低量，并根据所述发送功率降低量降低目标 UE 的发送功率。 Further, the communication interface 61 is specifically configured to send the identifier of the target UE and the uplink interference of the target UE to the macro base station of the embodiment to the micro base station, so that the micro base station is all from the serving cell of the camping micro base station according to the identifier of the target UE. In the UE, the target UE is determined, and the uplink power interference amount of the macro base station of the embodiment is determined according to the target UE, and the transmission power reduction amount is determined, and the transmission power of the target UE is reduced according to the transmission power reduction amount.

可选的，在具体实现上，如果通信接口 61、处理器 62和存储器 63独立实现，则通信接口 61、处理器 62和存储器 63可以通过总线相互连接并完成相互间的通信。所述总线可以是工业标准体系结构（ Industry Standard Architecture , 筒称为 IS Α ) 总线、外部设备互连（Peripheral Component, 筒称为 PCI ) 总线或扩展工业标准体系结构（ Extended Industry Standard Architecture , 筒称为 EISA ) 总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图 6中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。 Alternatively, in a specific implementation, if the communication interface 61, the processor 62, and the memory 63 are implemented independently, the communication interface 61, the processor 62, and the memory 63 can be connected to each other through a bus and complete communication with each other. The bus may be an Industry Standard Architecture (IS Α) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture ( Extended Industry Standard Architecture). For EISA) bus etc. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus.

可选的，在具体实现上，如果通信接口 61、处理器 62和存储器 63集成在一块芯片上实现，则通信接口 61、处理器 62和存储器 63可以通过内部接口完成相同间的通信。 Optionally, in a specific implementation, if the communication interface 61, the processor 62, and the memory 63 are integrated on a chip, the communication interface 61, the processor 62, and the memory 63 can perform the same communication through the internal interface.

本实施例提供的宏基站可用于执行上述图 1-图 3所示干扰抑制方法实施例的流程，其具体工作原理不再赘述，详见方法实施例的描述。 The macro base station provided in this embodiment may be used to perform the process of the foregoing embodiment of the interference suppression method shown in FIG. 1 to FIG. 3. The specific working principle is not described here. For details, refer to the description of the method embodiment.

本实施例提供的宏基站，根据驻留微基站的服务小区中且处于 CELL-DCH 态或处于 CELL— FACH态的 UE的信道参数，分别对这些 UE的上行信道进行监听，确定每个 UE对宏基站的上行干扰量，从中确定出需要降低发送功率的目标 UE, 并通知微基站，以便微基站降低这些目标 UE的发送功率，一方面降低了对本实施例宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。 The macro base station provided in this embodiment separately monitors the uplink channels of the UEs according to the channel parameters of the UEs in the serving cell of the micro base station and in the CELL-DCH state or in the CELL-FACH state, and determines each UE pair. The uplink interference amount of the macro base station, from which the target UE that needs to reduce the transmission power is determined, and the micro base station is notified, so that the micro base station reduces the transmission power of the target UEs, thereby reducing the interference to the macro base station of the embodiment, on the other hand It is only for the UE that needs to reduce the transmission power to reduce the transmission power, instead of directly reducing the RTWP of the micro base station, which is beneficial to make full use of the uplink resources, and Less waste of upstream resources.

图 7为本发明实施例提供的一种微基站的结构示意图。如图 7所示，本实施例的微基站包括：发送模块 71和功率处理模块 73。 FIG. 7 is a schematic structural diagram of a micro base station according to an embodiment of the present invention. As shown in FIG. 7, the micro base station of this embodiment includes: a sending module 71 and a power processing module 73.

发送模块 71 , 用于发送驻留本实施例微基站的服务小区中的所有 UE的信道参数，以使宏基站根据所述信道参数对每个 UE的上行信道进行监听，并根据监听获取的 UE对宏基站的上行干扰量，从所述 UE中确定出待降低发送功率的目标 UE。其中，上述驻留微基站的服务小区中的 UE处于 CELL-DCH态，或处于 CELL— FACH态。 The sending module 71 is configured to send channel parameters of all UEs in the serving cell of the micro base station of the embodiment, so that the macro base station monitors the uplink channel of each UE according to the channel parameter, and acquires the UE according to the interception. For the uplink interference amount of the macro base station, the target UE to which the transmission power is to be reduced is determined from the UE. The UE in the serving cell of the camping micro base station is in a CELL-DCH state or in a CELL-FACH state.

功率处理模块 73 , 与发送模块 71连接，用于在发送模块 71发送 UE的信道参数之后，根据宏基站通知的目标 UE, 降低目标 UE的发送功率。 The power processing module 73 is connected to the sending module 71, and is configured to: after the sending module 71 sends the channel parameter of the UE, reduce the sending power of the target UE according to the target UE notified by the macro base station.

在一可选实施方式中，如图 7所示，本实施例的微基站还包括接收模块 72。接收模块 72用于接收宏基站发送的信道参数获取请求，所述信道参数获取请求是宏基站确定宏基站的 RTWP大于预设功率门限后发送的。发送模块 71具体可用于根据接收模块 72接收的信道参数获取请求，向宏基站发送信道参数获取响应，该信道参数获取响应携带有驻留在微基站的服务小区中且处于 CELL-DCH 态或处于 CELL— FACH态的 UE的信道参数。发送模块 71与接收模块 72连接。 In an optional implementation, as shown in FIG. 7, the micro base station of this embodiment further includes a receiving module 72. The receiving module 72 is configured to receive a channel parameter acquisition request sent by the macro base station, where the channel parameter acquisition request is sent by the macro base station after determining that the RTWP of the macro base station is greater than a preset power threshold. The sending module 71 is specifically configured to send a channel parameter acquisition response to the macro base station according to the channel parameter acquisition request received by the receiving module 72, where the channel parameter acquisition response carries the CELL-DCH state or is in the serving cell of the micro base station. Channel parameters of the CELL-FACH UE. The transmitting module 71 is connected to the receiving module 72.

在一可选实施方式中，发送模块 71具体可用于向宏基站发送上报信息，上报信息携带有驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。 In an optional implementation, the sending module 71 is specifically configured to send, to the macro base station, the reporting information, where the reporting information carries the channel of the UE that is in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state. parameter.

在一可选实施方式中，接收模块 72还用于接收宏基站发送的目标 UE的标识。基于此，功率处理模块 73具体可用于根据目标 UE的标识，从驻留本实施例微基站的服务小区中的所有 UE中，确定目标 UE,并降低目标 UE的发送功率。进一步，功率处理模块 73具体可用于根据目标 UE的标识，从驻留本实施例微基站的服务小区中的所有 UE中，确定目标 UE,将目标 UE的标识加入限制集合，降低目标 UE的调度授权值，并控制发送模块 71将降低后的调度授权值发送给目标 UE。其中在所述限制集合中的 UE的标识对应的调度 4受权值保持不变或降低。相应的，发送模块 71还用于在功率处理模块 73的控制下，将功率处理模块 73降低后的调度授权值发送给目标 UE, 以降低目标 UE的发送功率。具体的，功率处理模块 73可以降低目标 UE的 AG值或生成表示 "down" 的 RG值，将处理后的 AG值或 RG值提供给发送模块 71 , 由发送模块 71将处理后的 AG值或 RG 值发送给目标 UE, 以降低目标 UE的发送功率。 In an optional implementation, the receiving module 72 is further configured to receive an identifier of the target UE sent by the macro base station. Based on this, the power processing module 73 is specifically configured to determine, according to the identifier of the target UE, the target UE from all UEs in the serving cell that camps in the micro base station of the embodiment, and reduce the transmission power of the target UE. Further, the power processing module 73 is specifically configured to determine, according to the identifier of the target UE, the target UE from all the UEs in the serving cell of the micro base station in the embodiment, and add the identifier of the target UE to the restricted set to reduce the scheduling of the target UE. The authorization value, and the control sending module 71 sends the reduced scheduling authorization value to the target UE. The schedule 4 authorized value corresponding to the identifier of the UE in the restricted set remains unchanged or decreased. Correspondingly, the sending module 71 is further configured to send the reduced scheduling grant value of the power processing module 73 to the target UE under the control of the power processing module 73, so as to reduce the sending power of the target UE. Specifically, the power processing module 73 may reduce the AG value of the target UE or generate an RG value indicating "down", and provide the processed AG value or RG value to the sending module 71, and the sending module 71 will process the processed AG value or RG The value is sent to the target UE to reduce the transmit power of the target UE.

或者，功率处理模块 73具体可用于根据目标 UE的标识，从驻留本实施例微基站的服务小区中的所有 UE中，确定目标 UE, 生成功率下降指示，并控制发送模块 71将功率下降指示发送给目标 UE。发送模块 71具体还用于在功率处理模块 73的控制下，向目标 UE发送功率下降指示，以降低目标 UE的发送功率。具体的，发送模块 71通过 E-RGCH向目标 UE发送功率下降指示，以降低目标 UE的发送功率。功率处理模块 73与接收模块 72连接。 Alternatively, the power processing module 73 is specifically configured to determine, according to the identifier of the target UE, the target UE from all the UEs in the serving cell of the micro base station in the embodiment, generate a power down indication, and control the sending module 71 to decrease the power indication. Send to the target UE. The sending module 71 is further configured to send a power down indication to the target UE under the control of the power processing module 73 to reduce the transmit power of the target UE. Specifically, the sending module 71 sends a power down indication to the target UE through the E-RGCH to reduce the transmit power of the target UE. The power processing module 73 is coupled to the receiving module 72.

在一可选实施方式中，接收模块 72还用于接收宏基站发送的目标 UE对宏基站的上行干扰量。相应的，功率处理模块 73具体可用于根据目标 UE的标识，从驻留本实施例微基站的服务小区中的所有 UE中，确定目标 UE, 并将目标 UE 的标识加入限制集合，根据目标 UE对宏基站的上行干扰量，确定发送功率降低量，根据所述发送功率降低量，降低目标 UE的调度授权值，并控制发送模块 71将降低后的调度授权值发送给目标 UE。相应的，发送模块 71还用于在功率处理模块 73的控制下，将功率处理模块 73降低后的调度授权值发送给目标 UE, 以降低目标 UE的发送功率。 In an optional implementation manner, the receiving module 72 is further configured to receive, by the macro base station, an uplink interference amount of the target UE to the macro base station. Correspondingly, the power processing module 73 is specifically configured to determine, according to the identifier of the target UE, the target UE from all the UEs in the serving cell that camps in the micro base station of the embodiment, and add the identifier of the target UE to the restricted set, according to the target UE. The uplink power interference amount of the macro base station is determined, and the transmission power reduction amount is determined. According to the transmission power reduction amount, the scheduling authorization value of the target UE is decreased, and the control sending module 71 sends the reduced scheduling authorization value to the target UE. Correspondingly, the sending module 71 is further configured to send the reduced scheduling grant value of the power processing module 73 to the target UE under the control of the power processing module 73 to reduce the transmit power of the target UE.

在一可选实施方式中，基于上述限制集合，功率处理模块 73还用于判断是否满足将目标 UE的标识从限制集合中删除的触发条件，并在判断结果为满足时，将目标 UE的标识从限制集合中删除。 In an optional implementation, based on the foregoing set of restrictions, the power processing module 73 is further configured to determine whether a trigger condition for deleting the identifier of the target UE from the restricted set is met, and when the determination result is satisfied, the identifier of the target UE is used. Remove from the restricted collection.

可选的，所述触发条件可以为目标 UE对宏基站的上行干扰量小于或等于预设干扰量门限，则功率处理模块 73用于判断是否满足将目标 UE的标识从限制集合中删除的触发条件包括：功率处理模块 73具体用于判断目标 UE对宏基站的上行干扰量是否小于或等于预设干扰量门限，如果判断结果为是，则确定满足所述触发条件。 Optionally, the triggering condition may be that the uplink interference amount of the target UE to the macro base station is less than or equal to the preset interference quantity threshold, and the power processing module 73 is configured to determine whether the trigger for deleting the identifier of the target UE from the restricted set is satisfied. The condition includes: The power processing module 73 is specifically configured to determine whether the uplink interference amount of the target UE to the macro base station is less than or equal to a preset interference quantity threshold, and if the determination result is yes, determine that the trigger condition is met.

或者，所述触发条件可以为目标 UE的标识加入到所述限制集合的时间达到指定时间长度。则功率处理模块 73用于判断是否满足将目标 UE的标识从限制集合中删除的触发条件包括：功率处理模块 73具体可用于判断目标 UE的标识加入到限制集合的时间是否达到指定时间长度，如果判断结果为达到，则确定满足所述触发条件。功率处理模块 73用于判断是否满足将目标 UE的标识从限制集合中删除的触发条件包括：功率处理模块 73具体可用于判断目标 UE是否退出 Cell-DCH态或 CELL— FACH态，如果目标 UE退出 Cell-DCH态或 CELL— FACH态，则确定满足所述触发条件。 Alternatively, the triggering condition may be that the identifier of the target UE is added to the restricted set for a specified length of time. The power processing module 73 is configured to determine whether the triggering condition for deleting the identifier of the target UE from the restricted set is included: the power processing module 73 is specifically configured to determine whether the time when the identifier of the target UE is added to the restricted set reaches a specified length of time, if If the judgment result is reached, it is determined that the trigger condition is satisfied. The power processing module 73 is configured to determine whether the trigger for deleting the identifier of the target UE from the restricted set is satisfied. The condition includes: The power processing module 73 is specifically configured to determine whether the target UE exits the Cell-DCH state or the CELL-FACH state. If the target UE exits the Cell-DCH state or the CELL-FACH state, it is determined that the trigger condition is met.

本实施例提供的微基站的各功能模块可用于执行图 4所示干扰抑制方法实施例的流程，其具体工作原理不再赘述，详见方法实施例的描述。 The function modules of the micro base station provided in this embodiment can be used to perform the process of the embodiment of the interference suppression method shown in FIG. 4, and the specific working principle is not described here. For details, refer to the description of the method embodiment.

本实施例提供的微基站，向宏基站发送驻留微基站的服务小区中且处于 Cell-DCH态或 CELL— FACH态的所有 UE的信道参数，使得宏基站根据 UE的信道参数息，分别对每个 UE的上行信道进行监听，获得 UE对宏基站的上行干扰量，进而根据上行干扰量从所述 UE中确定出需要降低发送功率的目标 UE, 并通知微基站，微基站降低这些目标 UE的发送功率，一方面降低了对宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE降低发送功率，而像那些距离宏基站相对较远的 UE可以不用降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。 The micro base station provided by the embodiment sends the channel parameters of all UEs in the serving cell of the micro base station and in the Cell-DCH state or the CELL-FACH state to the macro base station, so that the macro base station separately according to the channel parameter information of the UE The uplink channel of each UE is monitored, the uplink interference amount of the UE to the macro base station is obtained, and the target UE that needs to reduce the transmission power is determined from the UE according to the uplink interference quantity, and the micro base station is notified, and the micro base station lowers the target UE. The transmission power reduces the interference to the macro base station on the one hand, and reduces the transmission power only for the UE that needs to reduce the transmission power on the other hand, and the UEs that are relatively far from the macro base station can reduce the transmission power instead of the UE. Directly reducing the RTWP of the micro base station is beneficial to fully utilize the uplink resources and reduce the waste of uplink resources.

图 8为本发明实施例提供的微基站的结构示意图。如图 8所示，本实施例的微基站包括：通信接口 81、处理器 82和存储器 83。 FIG. 8 is a schematic structural diagram of a micro base station according to an embodiment of the present invention. As shown in FIG. 8, the micro base station of this embodiment includes: a communication interface 81, a processor 82, and a memory 83.

通信接口 81 , 用于发送驻留本实施例微基站的服务小区中的所有 UE的信道参数，以使宏基站根据所述信道参数对每个 UE的上行信道进行监听，并根据监听获取的 UE对宏基站的上行干扰量，从所述 UE中确定出待降低发送功率的目标 UE。其中，上述驻留微基站的服务小区中的 UE处于 Cell-DCH态，或处于 CELL— FACH态。 The communication interface 81 is configured to send channel parameters of all UEs in the serving cell of the micro base station of the embodiment, so that the macro base station monitors the uplink channel of each UE according to the channel parameter, and acquires the UE according to the interception. For the uplink interference amount of the macro base station, the target UE to which the transmission power is to be reduced is determined from the UE. The UE in the serving cell of the camping micro base station is in a Cell-DCH state or in a CELL-FACH state.

存储器 83 , 用于存放程序。具体地，程序可以包括程序代码，所述程序代码包括计算机操作指令。存储器 83可能包含高速 RAM存储器，也可能还包括非易失性存储器（ non-volatile memory ) , 例如至少一个磁盘存储器。 The memory 83 is used to store the program. In particular, the program can include program code, the program code including computer operating instructions. The memory 83 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.

处理器 82 , 用于执行程序，以用于在通信接口 81发送所述信道参数之后，根据宏基站通知的目标 UE, 降低目标 UE的发送功率。 The processor 82 is configured to execute a program, after the communication interface 81 sends the channel parameter, reduce the transmission power of the target UE according to the target UE notified by the macro base station.

处理器 82可能是一个 CPU, 或者是特定 ASIC , 或者是被配置成实施本发明实施例的一个或多个集成电路。 Processor 82 may be a CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

在一可选实施方式中，通信接口 81具体可用于接收宏基站发送的信道参数获取请求，所述信道参数获取请求是宏基站确定宏基站的 RTWP大于预设功率门限后发送的，并根据该信道参数获取请求，向宏基站发送信道参数获取响应，该信道参数获取响应携带有驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。 In an optional implementation manner, the communications interface 81 is specifically configured to receive channel parameters sent by the macro base station. Obtaining a request, the channel parameter acquisition request is sent by the macro base station after determining that the RTWP of the macro base station is greater than a preset power threshold, and sending a channel parameter acquisition response to the macro base station according to the channel parameter acquisition request, where the channel parameter acquisition response carries Channel parameters of a UE camping in a serving cell of a micro base station and in a CELL-DCH state or in a CELL-FACH state.

在一可选实施方式中，通信接口 81具体可用于向宏基站发送上报信息，上报信息携带有驻留在微基站的服务小区中且处于 CELL-DCH态或处于 CELL— FACH态的 UE的信道参数。 In an optional implementation manner, the communication interface 81 is specifically configured to send the report information to the macro base station, where the report information carries the channel of the UE that resides in the serving cell of the micro base station and is in the CELL-DCH state or in the CELL-FACH state. parameter.

在一可选实施方式中，通信接口 81还用于接收宏基站发送的目标 UE的标识，并提供给处理器 82。处理器 82具体可用于根据通信接口 81接收的目标 UE 的标识，从驻留本实施例微基站的服务小区中的所有 UE中，确定所述目标 UE, 并降低目标 UE的发送功率。进一步，处理器 82具体可用于根据目标 UE的标识，从驻留本实施例微基站的服务小区中的所有 UE中，确定所述目标 UE, 将所述目标 UE的标识加入限制集合，降低目标 UE的调度授权值，并将降低后的调度授权值提供给通信接口 81。其中在所述限制集合中的 UE的标识对应的调度授权值保持不变或降低。相应的，通信接口 81还用于在处理器 82的控制下，将降低后的调度 4受权值发送给目标 UE, 以降低目标 UE的发送功率。 In an optional implementation manner, the communication interface 81 is further configured to receive the identifier of the target UE sent by the macro base station, and provide the identifier to the processor 82. The processor 82 is specifically configured to determine, according to the identifier of the target UE received by the communication interface 81, the target UE from all UEs in the serving cell that camps in the micro base station of the embodiment, and reduce the transmission power of the target UE. Further, the processor 82 is specifically configured to: determine, according to the identifier of the target UE, the target UE from all the UEs in the serving cell of the micro base station in the embodiment, add the identifier of the target UE to the restricted set, and lower the target. The scheduling authorization value of the UE is provided to the communication interface 81. The scheduling grant value corresponding to the identifier of the UE in the restricted set remains unchanged or decreased. Correspondingly, the communication interface 81 is further configured to send the reduced scheduling 4 authorized value to the target UE under the control of the processor 82 to reduce the transmission power of the target UE.

或者，处理器 82具体可用于根据目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 生成功率下降指示，并将功率下降指示提供给通信接口 81。通信接口 81还用于在处理器 82的控制下，向目标 UE发送功率下降指示，以降低目标 UE的发送功率。具体的，通信接口 81通过 E-RGCH向目标 UE发送功率下降指示，以降低目标 UE的发送功率。 Alternatively, the processor 82 is specifically configured to determine, according to the identifier of the target UE, the target UE from all UEs in the serving cell of the micro base station, generate a power drop indication, and provide a power down indication to the communication. Interface 81. The communication interface 81 is further configured to send a power down indication to the target UE under the control of the processor 82 to reduce the transmit power of the target UE. Specifically, the communication interface 81 sends a power down indication to the target UE through the E-RGCH to reduce the transmit power of the target UE.

在一可选实施方式中，通信接口 81还用于接收宏基站发送的目标 UE对宏基站的上行干扰量，并提供给处理器 82。相应的，处理器 82具体可用于根据目标 UE的标识，从驻留本实施例微基站的服务小区中的所有 UE中，确定所述目标 UE,将所述目标 UE的标识加入限制集合，并根据所述目标 UE对所述宏基站的上行干扰量，确定发送功率降低量，根据所述发送功率降低量，降低目标 UE的调度授权值，并将降低后的调度授权值提供给通信接口 81。相应的，通信接口 81还用于在处理器 82的控制下，将降低后的调度授权值发送给目标 UE, 以降低目标 UE的发送功率。 In an optional implementation manner, the communications interface 81 is further configured to receive an uplink interference amount of the target UE to the macro base station sent by the macro base station, and provide the same to the processor 82. Correspondingly, the processor 82 is specifically configured to determine, according to the identifier of the target UE, the target UE from all UEs in the serving cell of the micro base station in the embodiment, and add the identifier of the target UE to the restricted set, and Determining a transmission power reduction amount according to the uplink interference amount of the target UE to the macro base station, reducing a scheduling authorization value of the target UE according to the transmission power reduction amount, and providing the reduced scheduling authorization value to the communication interface 81 . Correspondingly, the communication interface 81 is further configured to send the reduced scheduling grant value to the target UE under the control of the processor 82 to reduce the transmit power of the target UE.

基于上述限制集合，处理器 82还用于判断是否满足将目标 UE的标识从限制集合中删除的触发条件，并在判断结果为满足时，将目标 UE的标识从限制集合中删除。 Based on the foregoing set of restrictions, the processor 82 is further configured to determine whether the identifier of the target UE is met. The trigger condition deleted in the set is determined, and when the judgment result is satisfied, the identifier of the target UE is deleted from the restricted set.

可选的，所述触发条件可以为目标 UE对所述宏基站的上行干扰量小于或等于预设干扰量门限。则处理器 82用于判断是否满足将目标 UE的标识从限制集合中删除的触发条件包括：处理器 82具体用于判断目标 UE对宏基站的上行干扰量是否小于或等于预设干扰量门限，如果判断结果为是，则确定满足所述触发条件。 Optionally, the triggering condition may be that the uplink interference amount of the target UE to the macro base station is less than or equal to a preset interference amount threshold. The processor 82 is configured to determine whether the trigger condition for deleting the identifier of the target UE from the restricted set is: the processor 82 is specifically configured to determine whether the uplink interference amount of the target UE to the macro base station is less than or equal to a preset interference threshold. If the result of the determination is YES, it is determined that the trigger condition is satisfied.

或者，所述触发条件可以为目标 UE的标识加入到所述限制集合的时间达到指定时间长度。则处理器 82用于判断是否满足将目标 UE的标识从限制集合中删除的触发条件包括：处理器 82具体可用于判断目标 UE的标识加入到限制集合的时间是否达到指定时间长度，如果判断结果为达到，则确定满足所述触发条件。处理器 82用于判断是否满足将目标 UE的标识从限制集合中删除的触发条件包括：处理器 82具体可用于判断第二 UE是否退出 Cell-DCH态或 CELL— FACH态，如果第二 UE退出 Cell-DCH态或 CELL— FACH态，则确定满足所述触发条件。 Alternatively, the triggering condition may be that the identifier of the target UE is added to the restricted set for a specified length of time. The processor 82 is configured to determine whether the triggering condition for deleting the identifier of the target UE from the restricted set is included: the processor 82 is specifically configured to determine whether the time when the identifier of the target UE is added to the restricted set reaches a specified length of time, if the result is determined. To achieve, it is determined that the trigger condition is met. The triggering condition for the processor 82 to determine whether the identifier of the target UE is deleted from the restricted set includes: The processor 82 is specifically configured to determine whether the second UE exits the Cell-DCH state or the CELL-FACH state, if the second UE exits. In the Cell-DCH state or the CELL-FACH state, it is determined that the trigger condition is satisfied.

可选的，在具体实现上，如果通信接口 81、处理器 82和存储器 83独立实现，则通信接口 81、处理器 82和存储器 83可以通过总线相互连接并完成相互间的通信。所述总线可以是 ISA总线、 PCI总线或 EISA总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图 8中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。 Optionally, in a specific implementation, if the communication interface 81, the processor 82, and the memory 83 are implemented independently, the communication interface 81, the processor 82, and the memory 83 can be connected to each other through a bus and complete communication with each other. The bus can be an ISA bus, a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.

可选的，在具体实现上，如果通信接口 81、处理器 82和存储器 83集成在一块芯片上实现，则通信接口 81、处理器 82和存储器 83可以通过内部接口完成相同间的通信。 Optionally, in a specific implementation, if the communication interface 81, the processor 82, and the memory 83 are integrated on a chip, the communication interface 81, the processor 82, and the memory 83 can perform the same communication through the internal interface.

本实施例提供的微基站可用于执行图 4所示干扰抑制方法实施例的流程，其具体工作原理不再赘述，详见方法实施例的描述。 The micro base station provided in this embodiment can be used to perform the process of the embodiment of the interference suppression method shown in FIG. 4, and the specific working principle is not described here. For details, refer to the description of the method embodiment.

本实施例提供的微基站，向宏基站发送驻留微基站的服务小区中且处于 Cell-DCH态或 CELL— FACH态的所有 UE的信道参数，使得宏基站根据 UE的信道参数，分别对每个 UE的上行信道进行监听，获得 UE对宏基站的上行干扰量，进而根据上行干扰量从所述 UE中确定出需要降低发送功率的目标 UE, 并通知微基站，微基站降低这些目标 UE的发送功率，一方面降低了对宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE降低发送功率，而像那些距离宏基站相对较远的 UE可以不用降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。 The micro base station provided by the embodiment sends the channel parameters of all the UEs in the serving cell of the micro base station and in the Cell-DCH state or the CELL-FACH state to the macro base station, so that the macro base station according to the UE The channel parameters are respectively monitored for the uplink channel of each UE, and the uplink interference amount of the UE to the macro base station is obtained, and then the target UE that needs to reduce the transmission power is determined from the UE according to the uplink interference quantity, and the micro base station is notified, The base station reduces the transmission power of the target UEs, on the one hand, reduces the interference to the macro base station, and on the other hand, reduces the transmission power only for the UEs that need to reduce the transmission power, and the UEs that are relatively far from the macro base station can be reduced. Transmitting power, instead of directly reducing the RTWP of the micro base station, is beneficial to make full use of uplink resources and reduce waste of uplink resources.

本发明实施例提供一种异构网***，包括上述实施例提供的微基站和上述实施例提供的宏基站。关于微基站和宏基站的工作原理以及实现结构在此不再赘述，详见上述实施例的描述。 The embodiment of the present invention provides a heterogeneous network system, which includes the micro base station provided by the foregoing embodiment and the macro base station provided by the foregoing embodiment. The working principle and implementation structure of the micro base station and the macro base station are not described herein again. For details, refer to the description of the above embodiment.

本实施例提供的异构网***还可以包括 UE等。 The heterogeneous network system provided in this embodiment may further include a UE or the like.

本实施例提供的异构网***可用于执行上述干扰抑制方法实施例的流程，一方面降低了对宏基站的干扰，另一方面由于仅对有必要降低发送功率的 UE 降低发送功率，而像那些距离宏基站相对较远的 UE可以不用降低发送功率，而不是直接降低微基站的 RTWP, 有利于充分利用上行资源，减少上行资源的浪费。 The heterogeneous network system provided in this embodiment may be used to perform the foregoing process of the interference suppression method, on the one hand, reducing the interference to the macro base station, and on the other hand, reducing the transmission power only for the UE that needs to reduce the transmission power, and the like Those UEs that are relatively far from the macro base station can reduce the transmission power without lowering the RTWP of the micro base station, which is beneficial to fully utilize the uplink resources and reduce the waste of uplink resources.

本领域普通技术人员可以理解：实现上述各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，执行包括上述各方法实施例的步骤；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。 One of ordinary skill in the art will appreciate that all or a portion of the steps to implement the various method embodiments described above can be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。 It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

权利要求 Rights request

1、一种干扰抑制方法，其特征在于，包括： 1. An interference suppression method, characterized by including:

获取驻留在微基站的服务小区中的所有用户设备（UE ) 的信道参数，其中，所述 UE处于 CELL— DCH态，或处于 CELL— F AC H态； Obtain the channel parameters of all user equipments (UEs) residing in the serving cell of the micro base station, where the UE is in the CELL-DCH state or the CELL-FACH state;

根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获取所述 According to the channel parameters, monitor the uplink channel of each UE respectively to obtain the

UE对宏基站的上行干扰量； The amount of uplink interference from UE to macro base station;

根据所述上行干扰量，从所述 UE中确定待降低发送功率的目标 UE; 将所述目标 UE通知所述微基站，以便所述微基站降低所述目标 UE的发送功率。 According to the amount of uplink interference, determine the target UE whose transmission power is to be reduced from the UE; notify the micro base station of the target UE, so that the micro base station reduces the transmission power of the target UE.

2、根据权利要求 1所述的干扰抑制方法，其特征在于，所述获取驻留在微基站的服务小区中的所有 UE的信道参数，包括： 2. The interference suppression method according to claim 1, wherein the obtaining channel parameters of all UEs residing in the serving cell of the micro base station includes:

当所述宏基站的宽带接收总功率 RTWP大于预设功率门限时，向所述微基站发送信道参数获取请求； When the total broadband received power RTWP of the macro base station is greater than the preset power threshold, send a channel parameter acquisition request to the micro base station;

接收所述微基站根据所述信道参数获取请求返回的信道参数获取响应，所述信道参数获取响应携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 Receive a channel parameter acquisition response returned by the micro base station according to the channel parameter acquisition request, where the channel parameter acquisition response carries channel parameters of all UEs residing in the serving cell of the micro base station.

3、根据权利要求 1所述的干扰抑制方法，其特征在于，所述获取驻留在微基站的服务小区中的所有 UE的信道参数，包括： 3. The interference suppression method according to claim 1, wherein the obtaining channel parameters of all UEs residing in the serving cell of the micro base station includes:

接收所述微基站发送的上报信息，所述上报信息携带有驻留在所述微基站的服务小区中的所有 UE的信道参数； Receive reporting information sent by the micro base station, where the reporting information carries channel parameters of all UEs residing in the serving cell of the micro base station;

所述根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获取所述 UE对宏基站的上行干扰量，包括： Monitoring the uplink channel of each UE according to the channel parameters to obtain the uplink interference amount of the UE to the macro base station includes:

当所述宏基站的 RTWP大于预设功率门限时，根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获取所述 UE对所述宏基站的上行干扰量。 When the RTWP of the macro base station is greater than the preset power threshold, the uplink channel of each UE is monitored according to the channel parameters to obtain the uplink interference amount of the UE to the macro base station.

4、根据权利要求 1-3任一项所述的干扰抑制方法，其特征在于，所述将所述目标 UE通知所述微基站，以便所述微基站降低所述目标 UE的发送功率，包括： 4. The interference suppression method according to any one of claims 1 to 3, characterized in that: notifying the target UE to the micro base station so that the micro base station reduces the transmission power of the target UE, includes: :

将所述目标 UE的标识发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中确定所述目标 UE, 并降低所述目标 UE的发送功率。 Send the identification of the target UE to the micro base station, so that the micro base station determines the target UE from all UEs camping in the serving cell of the micro base station according to the identification of the target UE, and reduces The transmit power of the target UE.

5、根据权利要求 4所述的干扰抑制方法，其特征在于，所述将所述目标 UE的标识发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中确定所述目标 UE,并降低所述目标 UE 的发送功率，包括： 5. The interference suppression method according to claim 4, characterized in that: the identification of the target UE is sent to the micro base station, so that the micro base station obtains the information from the resident location according to the identification of the target UE. Determine the target UE among all UEs in the serving cell of the micro base station, and reduce the transmission power of the target UE, including:

将所述目标 UE的标识和所述目标 UE对所述宏基站的上行干扰量，发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中确定所述目标 UE,根据所述目标 UE对所述宏基站的上行干扰量确定发送功率降低量，并根据所述发送功率降低量降低所述目标 UE 的发送功率。 Send the identification of the target UE and the uplink interference amount of the target UE to the macro base station to the micro base station, so that the micro base station can obtain the information from the micro base station based on the identification of the target UE. The target UE is determined among all UEs in the serving cell, the transmit power reduction amount is determined based on the uplink interference amount of the target UE to the macro base station, and the transmit power of the target UE is reduced according to the transmit power reduction amount.

6、根据权利要求 1-5任一项所述的干扰抑制方法，其特征在于，所述根据所述上行干扰量，从所述 UE中确定待降低发送功率的目标 UE, 包括： 6. The interference suppression method according to any one of claims 1 to 5, wherein the determining the target UE to be reduced in transmission power from the UE according to the uplink interference amount includes:

将所述 UE中对所述宏基站的上行干扰量大于预设干扰量门限的 UE作为所述目标 UE。 Among the UEs, the UE whose uplink interference to the macro base station is greater than the preset interference threshold is used as the target UE.

7、根据权利要求 1-6任一项所述的干扰抑制方法，其特征在于，所述信道参数至少包括：所述 UE的标识、所述 UE使用的扰码和信道化码。 7. The interference suppression method according to any one of claims 1 to 6, characterized in that the channel parameters include at least: the identification of the UE, the scrambling code and the channelization code used by the UE.

8、一种干扰抑制方法，其特征在于，包括： 8. An interference suppression method, characterized by including:

发送驻留在微基站的服务小区中的所有用户设备（UE ) 的信道参数给宏基站，以便所述宏基站根据所述信道参数对每个所述 UE的上行信道进行监听，并根据监听获取的所述 UE对所述宏基站的上行干扰量，从所述 UE中确定待降低发送功率的目标 UE,其中，所述 UE处于 CELL-DCH态，或处于 CELL— FACH 态； Send the channel parameters of all user equipments (UEs) residing in the serving cell of the micro base station to the macro base station, so that the macro base station monitors the uplink channel of each UE according to the channel parameters, and obtains the information based on the monitoring The uplink interference amount of the UE to the macro base station is determined from the UE to determine the target UE to be reduced in transmission power, wherein the UE is in the CELL-DCH state or in the CELL-FACH state;

根据所述宏基站通知的所述目标 UE, 降低所述目标 UE的发送功率。 According to the target UE notified by the macro base station, the transmission power of the target UE is reduced.

9、根据权利要求 8所述的干扰抑制方法，其特征在于，所述发送驻留在微基站的服务小区中的所有 UE的信道参数给宏基站，包括： 9. The interference suppression method according to claim 8, wherein the sending channel parameters of all UEs residing in the serving cell of the micro base station to the macro base station includes:

接收所述宏基站在所述宏基站的宽带接收总功率 RTWP大于预设功率门限时发送的信道参数获取请求； Receive a channel parameter acquisition request sent by the macro base station when the total broadband reception power RTWP of the macro base station is greater than a preset power threshold;

根据所述信道参数获取请求，向所述宏基站发送信道参数获取响应，所述信道参数获取响应携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 According to the channel parameter acquisition request, a channel parameter acquisition response is sent to the macro base station, where the channel parameter acquisition response carries channel parameters of all UEs residing in the serving cell of the micro base station.

10、根据权利要求 8所述的干扰抑制方法，其特征在于，所述发送驻留在微基站的服务小区中的所有 UE的信道参数给宏基站，包括： 10. The interference suppression method according to claim 8, characterized in that the transmission resides in The channel parameters of all UEs in the serving cell of the micro base station are given to the macro base station, including:

向所述宏基站发送上报信息，所述上报信息携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 Send reporting information to the macro base station, where the reporting information carries channel parameters of all UEs residing in the serving cell of the micro base station.

11、根据权利要求 8-10任一项所述的干扰抑制方法，其特征在于，所述根据所述宏基站通知的所述目标 UE, 降低所述目标 UE的发送功率，包括： 11. The interference suppression method according to any one of claims 8-10, characterized in that: reducing the transmission power of the target UE according to the target UE notified by the macro base station includes:

接收所述宏基站发送的所述目标 UE的标识； Receive the identification of the target UE sent by the macro base station;

根据所述目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE 中，确定所述目标 UE, 并降低所述目标 UE的发送功率。 According to the identity of the target UE, the target UE is determined from all UEs residing in the serving cell of the micro base station, and the transmission power of the target UE is reduced.

12、根据权利要求 11所述的干扰抑制方法，其特征在于，所述降低所述目标 UE的发送功率，包括： 12. The interference suppression method according to claim 11, wherein the reducing the transmit power of the target UE includes:

将所述目标 UE的标识加入限制集合，并降低所述目标 UE的调度授权值，将降低后的调度授权值发送给所述目标 UE, 以降低所述目标 UE的发送功率，其中，在所述限制集合中的 UE的标识对应的调度授权值保持不变或降低；或者 Add the identity of the target UE to the restricted set, reduce the scheduling authorization value of the target UE, and send the reduced scheduling authorization value to the target UE to reduce the transmission power of the target UE, where, The scheduling grant value corresponding to the identity of the UE in the restricted set remains unchanged or decreases; or

向所述目标 UE发送功率下降指示，以降低所述目标 UE的发送功率。 Send a power reduction indication to the target UE to reduce the transmission power of the target UE.

13、根据权利要求 12所述的干扰抑制方法，其特征在于，所述降低所述目标 UE的调度授权值之前，还包括： 13. The interference suppression method according to claim 12, characterized in that before reducing the scheduling authorization value of the target UE, the method further includes:

接收所述宏基站发送的所述目标 UE对所述宏基站的上行干扰量；所述降低所述目标 UE的调度授权值，包括： Receive the uplink interference amount of the target UE to the macro base station sent by the macro base station; and reducing the scheduling grant value of the target UE includes:

根据所述目标 UE对所述宏基站的上行干扰量，确定发送功率降低量，根据所述发送功率降低量，降低所述目标 UE的调度授权值。 According to the amount of uplink interference of the target UE to the macro base station, the transmission power reduction amount is determined, and the scheduling authorization value of the target UE is reduced according to the transmission power reduction amount.

14、根据权利要求 12或 13所述的干扰抑制方法，其特征在于，还包括：判断是否满足将所述目标 UE的标识从所述限制集合中删除的触发条件；如果判断结果为满足，将所述目标 UE的标识从所述限制集合中删除。 14. The interference suppression method according to claim 12 or 13, further comprising: determining whether a trigger condition for deleting the identity of the target UE from the restricted set is met; if the determination result is met, The identity of the target UE is deleted from the restricted set.

15、根据权利要求 14所述的干扰抑制方法，其特征在于，所述触发条件包括： 15. The interference suppression method according to claim 14, characterized in that the triggering conditions include:

所述目标 UE对所述宏基站的上行干扰量小于或等于预设干扰量门限；或者， The uplink interference amount of the target UE to the macro base station is less than or equal to the preset interference amount threshold; or,

所述目标 UE的标识加入到所述限制集合的时间达到指定时间长度；或者，所述目标 UE退出 Cell-DCH态或 CELL— FACH态。 The time when the identity of the target UE is added to the restricted set reaches a specified length of time; or, The target UE exits the Cell-DCH state or the CELL-FACH state.

16、根据权利要求 8-15任一项所述的干扰抑制方法，其特征在于，所述信道参数至少包括：所述 UE的标识、所述 UE使用的扰码和信道化码。 16. The interference suppression method according to any one of claims 8 to 15, characterized in that the channel parameters include at least: the identification of the UE, the scrambling code and the channelization code used by the UE.

17、一种宏基站，其特征在于，包括： 17. A macro base station, characterized by including:

获取模块，用于获取驻留在微基站的服务小区中的所有用户设备（UE ) 的信道参数，其中，所述 UE处于 CELL-DCH态，或处于 CELL— FACH态；监听模块，用于根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获得所述 UE对所述宏基站的上行干扰量； The acquisition module is used to acquire the channel parameters of all user equipments (UEs) residing in the serving cell of the micro base station, wherein the UE is in the CELL-DCH state, or in the CELL-FACH state; the monitoring module is used to perform the monitoring according to the The channel parameter is to monitor the uplink channel of each UE respectively, and obtain the uplink interference amount of the UE to the macro base station;

确定模块，用于根据所述上行干扰量，从所述 UE中确定待降低发送功率的目标 UE; Determining module, configured to determine the target UE whose transmission power is to be reduced from the UE according to the uplink interference amount;

通知模块，用于将所述目标 UE通知所述微基站，以便所述微基站降低所述目标 UE的发送功率。 The notification module is configured to notify the micro base station of the target UE, so that the micro base station reduces the transmission power of the target UE.

18、根据权利要求 17所述的宏基站，其特征在于，所述获取模块具体用于当所述宏基站的宽带接收总功率 RTWP大于预设功率门限时，向所述微基站发送信道参数获取请求，并接收所述微基站根据所述信道参数获取请求返回的信道参数获取响应，所述信道参数获取响应携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 18. The macro base station according to claim 17, wherein the acquisition module is specifically configured to send the channel parameter acquisition to the micro base station when the total broadband reception power RTWP of the macro base station is greater than a preset power threshold. request, and receive a channel parameter acquisition response returned by the micro base station according to the channel parameter acquisition request, where the channel parameter acquisition response carries channel parameters of all UEs residing in the serving cell of the micro base station.

19、根据权利要求 17所述的宏基站，其特征在于，所述获取模块具体用于接收所述微基站发送的上报信息，所述上报信息携带有驻留在所述微基站的服务小区中的所有 UE的信道参数； 19. The macro base station according to claim 17, characterized in that the acquisition module is specifically configured to receive reporting information sent by the micro base station, and the reporting information carries the information stored in the serving cell of the micro base station. Channel parameters of all UEs;

所述监听模块具体用于当所述宏基站的 RTWP大于预设功率门限时，根据所述信道参数，分别对每个所述 UE的上行信道进行监听，获得所述 UE对所述宏基站的上行干扰量。 The monitoring module is specifically configured to monitor the uplink channel of each UE according to the channel parameters when the RTWP of the macro base station is greater than the preset power threshold, and obtain the UE's response to the macro base station. Amount of uplink interference.

20、根据权利要求 17-19任一项所述的宏基站，其特征在于，所述通知模块具体用于将所述目标 UE的标识发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 然后降低所述目标 UE的发送功率。 20. The macro base station according to any one of claims 17 to 19, characterized in that the notification module is specifically configured to send the identification of the target UE to the micro base station, so that the micro base station can perform the operation according to the The identification of the target UE is determined from all UEs camping in the serving cell of the micro base station, and then the transmission power of the target UE is reduced.

21、根据权利要求 20所述的宏基站，其特征在于，所述通知模块具体用于将所述目标 UE的标识和所述目标 UE对所述宏基站的上行干扰量，发送给所述微基站，以便所述微基站根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中，确定所述目标 UE,根据所述目标 UE对所述宏基站的上行干扰量确定发送功率降低量，并根据所述发送功率降低量降低所述目标 UE的发送功率。 21. The macro base station according to claim 20, wherein the notification module is specifically configured to send the identification of the target UE and the uplink interference amount of the target UE to the macro base station to the micro base station. base station, so that the micro base station can obtain the service of the micro base station based on the identity of the target UE. Among all UEs in the cell, the target UE is determined, the transmit power reduction amount is determined based on the uplink interference amount of the target UE to the macro base station, and the transmit power of the target UE is reduced based on the transmit power reduction amount.

22、根据权利要求 17-21任一项所述的宏基站，其特征在于，所述确定模块具体用于将所述 UE中对所述宏基站的上行干扰量大于预设干扰量门限的 22. The macro base station according to any one of claims 17 to 21, characterized in that the determination module is specifically used to determine the uplink interference amount of the UE to the macro base station is greater than a preset interference amount threshold.

UE作为所述目标 UE。 UE serves as the target UE.

23、根据权利要求 17-22任一项所述的宏基站，其特征在于，所述信道参数至少包括：所述 UE的标识、所述 UE使用的扰码和信道化码。 23. The macro base station according to any one of claims 17 to 22, characterized in that the channel parameters include at least: the identification of the UE, the scrambling code and the channelization code used by the UE.

24、一种微基站，其特征在于，包括： 24. A micro base station, characterized by including:

发送模块，用于发送驻留在所述微基站的服务小区中的所有用户设备 A sending module, configured to send to all user equipments residing in the serving cell of the micro base station

( UE ) 的信道参数给宏基站，以便所述宏基站根据所述信道参数对每个所述(UE)'s channel parameters to the macro base station, so that the macro base station can adjust each of the channel parameters according to the channel parameters.

UE的上行信道进行监听，并根据监听获取的所述 UE对所述宏基站的上行干扰量，从所述 UE中确定待降低发送功率的目标 UE,其中，所述 UE处于 CELL-DCH 态，或处于 CELL— FACH态； Monitor the uplink channel of the UE, and determine the target UE whose transmission power is to be reduced from the UE according to the uplink interference amount of the UE to the macro base station obtained by monitoring, wherein the UE is in the CELL-DCH state, Or in CELL-FACH state;

功率处理模块，用于根据所述宏基站通知的所述目标 UE, 降低所述目标 A power processing module, configured to reduce the target according to the target UE notified by the macro base station.

UE的发送功率。 The transmit power of the UE.

25、根据权利要求 24所述的微基站，其特征在于，还包括： 25. The micro base station according to claim 24, further comprising:

接收模块，用于接收所述宏基站发送的信道参数获取请求，所述信道参数获取请求是所述宏基站确定所述宏基站的宽带接收总功率 RTWP大于预设功率门限后发送的； A receiving module, configured to receive a channel parameter acquisition request sent by the macro base station, where the channel parameter acquisition request is sent after the macro base station determines that the total broadband reception power RTWP of the macro base station is greater than a preset power threshold;

所述发送模块具体用于根据所述信道参数获取请求，向所述宏基站发送信道参数获取响应，所述信道参数获取响应携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 The sending module is specifically configured to send a channel parameter acquisition response to the macro base station according to the channel parameter acquisition request, where the channel parameter acquisition response carries channels of all UEs residing in the serving cell of the micro base station. parameter.

26、根据权利要求 24所述的微基站，其特征在于，所述发送模块具体用于向所述宏基站发送上报信息，所述上报信息携带有驻留在所述微基站的服务小区中的所有 UE的信道参数。 26. The micro base station according to claim 24, characterized in that, the sending module is specifically configured to send reporting information to the macro base station, and the reporting information carries the data residing in the serving cell of the micro base station. Channel parameters of all UEs.

27、根据权利要求 25或 26所述的微基站，其特征在于，所述接收模块还用于接收所述宏基站发送的所述目标 UE的标识； 27. The micro base station according to claim 25 or 26, wherein the receiving module is further configured to receive the identification of the target UE sent by the macro base station;

所述功率处理模块具体用于根据所述目标 UE的标识，从驻留所述微基站的服务小区中的所有 UE中，确定所述目标 UE,并降低所述目标 UE的发送功率。 The power processing module is specifically configured to determine the target UE from all UEs camping in the serving cell of the micro base station according to the identity of the target UE, and reduce the transmission power of the target UE.

28、根据权利要求 27所述的微基站，其特征在于，所述功率处理模块具体用于根据所述目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE 中，确定所述目标 UE, 将所述目标 UE的标识加入限制集合，降低所述目标 UE 的调度授权值，并控制所述发送模块将所述降低后的调度授权值发送给所述目标 UE, 其中，在所述限制集合中的 UE的标识对应的调度 4受权值保持不变或降低； 28. The micro base station according to claim 27, wherein the power processing module is specifically configured to determine from all UEs residing in the serving cell of the micro base station according to the identity of the target UE. The target UE adds the identity of the target UE to a restricted set, reduces the scheduling authorization value of the target UE, and controls the sending module to send the reduced scheduling authorization value to the target UE, where, The scheduling 4 authorization value corresponding to the identity of the UE in the restricted set remains unchanged or decreases;

所述发送模块还用于将所述功率处理模块降低后的调度授权值发送给所述目标 UE , 以降低所述目标 UE的发送功率； The sending module is also configured to send the scheduling authorization value reduced by the power processing module to the target UE, so as to reduce the sending power of the target UE;

或者， or,

所述功率处理模块具体用于根据所述目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 生成功率下降指示，并控制所述发送模块将所述功率下降指示发送给所述目标 UE; The power processing module is specifically configured to determine the target UE from all UEs residing in the serving cell of the micro base station according to the identity of the target UE, generate a power reduction indication, and control the sending module Send the power down indication to the target UE;

所述发送模块还用于向所述目标 UE发送所述功率下降指示，以降低所述目标 UE的发送功率。 The sending module is also configured to send the power reduction indication to the target UE to reduce the sending power of the target UE.

29、根据权利要求 28所述的微基站，其特征在于，所述接收模块还用于接收所述宏基站发送的所述目标 UE对所述宏基站的上行干扰量； 29. The micro base station according to claim 28, wherein the receiving module is further configured to receive the uplink interference amount of the target UE to the macro base station sent by the macro base station;

所述功率处理模块具体用于根据所述目标 UE的标识，从驻留在所述微基站的服务小区中的所有 UE中，确定所述目标 UE, 然后将所述目标 UE的标识加入所述限制集合，根据所述目标 UE对所述宏基站的上行干扰量，确定发送功率降低量，根据所述发送功率降低量，降低所述目标 UE的调度授权值，并控制所述发送模块将所述降低后的调度授权值发送给所述目标 UE。 The power processing module is specifically configured to determine the target UE from all UEs residing in the serving cell of the micro base station according to the identity of the target UE, and then add the identity of the target UE to the Restriction set, determine the amount of transmission power reduction according to the amount of uplink interference of the target UE to the macro base station, reduce the scheduling authorization value of the target UE according to the amount of transmission power reduction, and control the transmission module to The reduced scheduling grant value is sent to the target UE.

30、根据权利要求 28或 29所述的微基站，其特征在于，所述功率处理模块还用于判断是否满足将所述目标 UE的标识从所述限制集合中删除的触发条件，并在判断结果为满足时，将所述目标 UE的标识从所述限制集合中删除。 30. The micro base station according to claim 28 or 29, characterized in that the power processing module is also used to determine whether a trigger condition for deleting the identity of the target UE from the restricted set is met, and when determining When the result is satisfied, the identity of the target UE is deleted from the restriction set.

31、根据权利要求 30所述的微基站，其特征在于，所述触发条件包括：所述目标 UE对所述宏基站的上行干扰量小于或等于预设干扰量门限；或者， 31. The micro base station according to claim 30, wherein the trigger condition includes: the uplink interference amount of the target UE to the macro base station is less than or equal to a preset interference amount threshold; or,

32、根据权利要求 24-31任一项所述的微基站，其特征在于，所述信道参数至少包括：所述 UE的标识、所述 UE使用的扰码和信道化码。 32. The micro base station according to any one of claims 24 to 31, characterized in that: the channel parameters The number at least includes: the identity of the UE, the scrambling code and the channelization code used by the UE.

33、一种异构网***，其特征在于，包括：权利要求 17-23任一项所述的宏基站，以及权利要求 24-32任一项所述的微基站。 33. A heterogeneous network system, characterized by comprising: the macro base station described in any one of claims 17-23, and the micro base station described in any one of claims 24-32.