技术领域technical field
本发明涉及通信技术领域，尤其涉及一种无线资源调度方法和设备。The present invention relates to the technical field of communication, and in particular to a radio resource scheduling method and device.
背景技术Background technique
在基于传统蜂窝网的异构网络中通常包括宏基站和小型基站，以LTE(Long Term Evolution，长期演进)网络为例，在Macro(宏)eNB(eNodeB，演进基站，简称基站)覆盖范围下可放置各类小型基站，如Pico(小型基站的一种)、HeNB(Home eNB，家庭基站)、Femto(小型基站的一种)等无线接入点。这些小型基站可以通过有线(如光纤)方式接入无线通信网或Internet(因特)网络，而有线网络接入容量大，不受无线资源匮乏的影响，因此，这些小型基站具有较高的吞吐量。接入Macro eNB的UE(User Equipment，用户设备)在进入这些小型基站覆盖范围后，若该UE具备接入小型基站的权限，则以无线方式接入小型基站。现有技术中一种家庭基站网络架构的示意图如图1所示，HeNB或Macro eNB可以以有线方式(S1接口)直接和MME(MobilityManagement Entity，移动管理实体)相连，HeNB的相关信息存储在MME中，或者多个HeNB以有线方式接入HeNBGW(HeNB Gate Way，家庭网关)，再由HeNBGW接入MME。HeNB下属UE的认证过程、无线资源的初步分配过程都由MME和HeNBGW完成。Heterogeneous networks based on traditional cellular networks usually include macro base stations and small base stations. Taking LTE (Long Term Evolution, long-term evolution) network as an example, under the coverage of Macro (macro) eNB (eNodeB, evolved base station, referred to as base station) Various small base stations can be placed, such as Pico (a type of small base station), HeNB (Home eNB, home base station), Femto (a type of small base station) and other wireless access points. These small base stations can access wireless communication networks or Internet (Internet) networks through wired (such as optical fiber), and the wired network has a large access capacity and is not affected by the lack of wireless resources. Therefore, these small base stations have high throughput. quantity. After the UE (User Equipment, user equipment) accessing the Macro eNB enters the coverage of these small base stations, if the UE has the right to access the small base station, it will access the small base station in a wireless manner. A schematic diagram of a home base station network architecture in the prior art is shown in Figure 1. HeNB or Macro eNB can be directly connected to MME (Mobility Management Entity, mobile management entity) in a wired manner (S1 interface), and relevant information of HeNB is stored in MME , or multiple HeNBs connect to the HeNBGW (HeNB Gate Way, home gateway) in a wired manner, and then the HeNBGW connects to the MME. The authentication process of the UE subordinate to the HeNB and the preliminary allocation process of radio resources are completed by the MME and the HeNBGW.
传统的Macro eNB覆盖的宏小区下，因为其他小型基站的引入，增加了很多微小区，甚至是微微小区，而小区的裂变，使得无线资源重复使用的概率增加，并可能产生干扰。图2为一个宏小区出现小区分裂的示意图，一个宏小区中含有多个家庭基站，图2中用HeNB A、HeNB B、HeNB C表示，每个家庭基站可建立一个微小区。在5个用户设备中，UE1和UE2直接接受宏基站(Macro eNB)的服务，而UE3、UE4和UE5则由HeNB提供服务。当微小区A和B彼此的覆盖范围距离远且发射功率较低，即使2个小区使用相同的频率资源f1，彼此之间不会产生干扰。但若HeNB A的UE2链路质量变差时，HeNB A会增加其发射功率，导致HeNB A的覆盖范围增加，很有可能影响其邻近的HeNB B的信道质量，对使用相同频率资源f1的HeNB B的UE产生干扰。另一方面，HeNB虽然较UE的移动性差，也会存在搬移现象，如果HeNBA搬移到HeNB B附近，此时两者由于使用同一无线资源f1，无线链路也会彼此干扰。因此如何合理的为每个HeNB分配无线资源，减轻空间相近的HeNB间的彼此干扰就成为一个问题。Under the macro cell covered by the traditional Macro eNB, many micro cells, even pico cells, are added due to the introduction of other small base stations, and the fission of the cell increases the probability of wireless resource reuse and may cause interference. Figure 2 is a schematic diagram of cell splitting in a macro cell. A macro cell contains multiple home base stations, represented by HeNB A, HeNB B, and HeNB C in Figure 2, and each home base station can establish a micro cell. Among the five user equipments, UE1 and UE2 are directly served by the macro base station (Macro eNB), while UE3, UE4 and UE5 are served by the HeNB. When microcells A and B have a long coverage distance and low transmit power, even if the two cells use the same frequency resource f1, no interference will be generated between them. However, if the link quality of UE2 of HeNB A deteriorates, HeNB A will increase its transmission power, resulting in an increase in the coverage of HeNB A, which may affect the channel quality of its neighboring HeNB B. For HeNBs using the same frequency resource f1 The UE of B generates interference. On the other hand, although HeNB is less mobile than UE, there will be relocation phenomenon. If HeNBA moves to the vicinity of HeNB B, at this time, the two wireless links will interfere with each other because they use the same wireless resource f1. Therefore, how to reasonably allocate radio resources for each HeNB and reduce the mutual interference between HeNBs in close space becomes a problem.
发明内容Contents of the invention
本发明实施例提供一种无线资源调度方法和设备，以减轻不同小型基站间或小型基站和宏基站间可能产生的干扰。Embodiments of the present invention provide a radio resource scheduling method and device, so as to alleviate possible interference between different small base stations or between small base stations and macro base stations.
根据本发明的一实施例，提供一种无线资源调度方法，包括：According to an embodiment of the present invention, a wireless resource scheduling method is provided, including:
小型基站向资源调度设备提供干扰相关信息，所述干扰相关信息中包括所述小型基站的位置信息；The small base station provides interference-related information to the resource scheduling device, where the interference-related information includes location information of the small base station;
所述小型基站获取资源调度设备分配的无线资源的信息，所述无线资源是由所述资源调度设备基于所述干扰相关信息分配给所述小型基站；The small base station acquires information about wireless resources allocated by a resource scheduling device, where the wireless resources are allocated to the small base station by the resource scheduling device based on the interference-related information;
所述小型基站利用所述无线资源为用户设备提供服务。The small base station uses the wireless resources to provide services for user equipment.
根据本发明的另一实施例，提供一种无线资源调度方法，包括：According to another embodiment of the present invention, a radio resource scheduling method is provided, including:
获取小型基站提供的干扰相关信息，所述干扰相关信息中包括所述小型基站的位置信息；Acquire interference-related information provided by the small base station, where the interference-related information includes location information of the small base station;
基于所述小型基站的位置信息，确定该小型基站的干扰空间范围内无线资源使用情况；Based on the location information of the small base station, determine the usage of wireless resources within the interference space range of the small base station;
当宏基站的无线资源集合内存在干扰空间范围未使用的无线资源时，将所述未使用的无线资源分配给所述小型基站，所述宏基站为所述小型基站的施主基站；When there are unused wireless resources in the interference space range in the wireless resource set of the macro base station, allocate the unused wireless resources to the small base station, and the macro base station is a donor base station of the small base station;
向所述小型基站提供分配的无线资源的信息。Information of allocated radio resources is provided to the small base station.
根据本发明的另一实施例，提供一种小型基站，包括：According to another embodiment of the present invention, a small base station is provided, including:
信息上报单元，用于向资源调度设备提供干扰相关信息，所述干扰相关信息中包括所述小型基站的位置信息；an information reporting unit, configured to provide the resource scheduling device with interference-related information, where the interference-related information includes location information of the small base station;
信息获取单元，用于获取资源调度设备分配的无线资源的信息，所述无线资源是由所述资源调度设备基于所述干扰相关信息分配给所述小型基站；an information acquiring unit, configured to acquire information about wireless resources allocated by a resource scheduling device, where the wireless resources are allocated to the small base station by the resource scheduling device based on the interference-related information;
通信单元，用于利用所述无线资源为用户设备提供服务。A communication unit, configured to use the radio resources to provide services for user equipment.
根据本发明的另一实施例，提供一种资源调度设备，包括：According to another embodiment of the present invention, a resource scheduling device is provided, including:
信息获取单元，用于获取小型基站提供的干扰相关信息，所述干扰相关信息中包括所述小型基站的位置信息；an information acquiring unit, configured to acquire interference-related information provided by the small base station, where the interference-related information includes location information of the small base station;
资源确定单元，用于基于所述小型基站的位置信息，确定该小型基站的干扰空间范围内无线资源使用情况；A resource determination unit, configured to determine the wireless resource usage within the interference space range of the small base station based on the location information of the small base station;
资源分配单元，用于当小型基站的施主宏基站的无线资源集合内存在干扰空间范围未使用的无线资源时，将所述未使用的无线资源分配给所述小型基站；A resource allocation unit, configured to allocate the unused wireless resources to the small base station when there are unused wireless resources in the interference space range in the wireless resource set of the donor macro base station of the small base station;
通知单元，用于向所述小型基站提供分配的无线资源的信息。A notification unit, configured to provide the small base station with information about the allocated wireless resources.
根据对上述技术方案的描述，本发明实施例有如下优点：小型基站通过向一资源调度设备提供自身干扰相关信息，使得资源调度设备可基于所述干扰相关信息进行资源分配，有利于为小型基站合理分配无线资源，减少小型基站间或小型基站和宏基站间可能出现的干扰。According to the description of the above technical solution, the embodiments of the present invention have the following advantages: the small base station provides its own interference-related information to a resource scheduling device, so that the resource scheduling device can perform resource allocation based on the interference-related information, which is beneficial for the small base station Reasonable allocation of wireless resources reduces possible interference between small base stations or between small base stations and macro base stations.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. As far as the skilled person is concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work.
图1为现有技术中一种家庭基站网络架构的示意图；FIG. 1 is a schematic diagram of a home base station network architecture in the prior art;
图2为一个宏小区出现小区分裂的示意图；FIG. 2 is a schematic diagram of a cell split occurring in a macro cell;
图3a为本发明的实施例提供的一种无线资源调度方法的示意图；FIG. 3a is a schematic diagram of a radio resource scheduling method provided by an embodiment of the present invention;
图3b为本发明的实施例提供的另一种无线资源调度方法的示意图；FIG. 3b is a schematic diagram of another radio resource scheduling method provided by an embodiment of the present invention;
图4为本发明实施例提供的一种小型基站的干扰情况的示意图；FIG. 4 is a schematic diagram of an interference situation of a small base station provided by an embodiment of the present invention;
图5为本发明的实施例提供的一种无线资源调度方法的简化流程示意图；FIG. 5 is a schematic flowchart of a simplified radio resource scheduling method provided by an embodiment of the present invention;
图6a为本发明的实施例提供的另一种无线资源调度方法的简化流程示意图；FIG. 6a is a schematic flowchart of another radio resource scheduling method provided by an embodiment of the present invention;
图6b为本发明的实施例提供的另一种无线资源调度方法的简化流程示意图；FIG. 6b is a simplified flowchart of another wireless resource scheduling method provided by an embodiment of the present invention;
图7为本发明的实施例提供的一种小型基站的示意图；FIG. 7 is a schematic diagram of a small base station provided by an embodiment of the present invention;
图8为本发明的实施例提供的一种宏基站的示意图；FIG. 8 is a schematic diagram of a macro base station provided by an embodiment of the present invention;
图9为本发明实施例提供的一种实现无线资源调度的系统的示意图。FIG. 9 is a schematic diagram of a system for implementing radio resource scheduling provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
图3a为本发明的实施例提供的一种无线资源调度方法的示意图，该方法包括：Fig. 3a is a schematic diagram of a wireless resource scheduling method provided by an embodiment of the present invention, the method comprising:
S31a：小型基站向宏基站提供干扰相关信息，所述干扰相关信息中包括所述小型基站的位置信息；S31a: The small base station provides interference-related information to the macro base station, where the interference-related information includes location information of the small base station;
S32a：所述小型基站获取宏基站分配的无线资源的信息，所述无线资源是由所述宏基站基于所述干扰相关信息分配给所述小型基站；S32a: The small base station acquires information about wireless resources allocated by the macro base station, where the wireless resources are allocated to the small base station by the macro base station based on the interference-related information;
S33a：所述小型基站利用所述无线资源为其用户设备提供服务。S33a: The small base station uses the radio resource to provide services for its user equipment.
本实施例的小型基站可以是包括Pico、HeNB和Femto在内的各种小型基站，其可接入所述宏基站，并向宏基站提供自身干扰相关信息，以便宏基站基于所述干扰相关信息进行资源分配，有利于宏基站为小型基站合理分配无线资源，可使小型基站和对其形成潜在干扰的其它基站被分配相同无线资源的可能性降低，小型基站间或小型基站和宏基站间出现干扰的情况可被减小。The small base station in this embodiment can be various small base stations including Pico, HeNB, and Femto, which can access the macro base station and provide its own interference-related information to the macro base station, so that the macro base station can base on the interference-related information Resource allocation is conducive to the rational allocation of wireless resources for small base stations by macro base stations, which can reduce the possibility of small base stations and other base stations that potentially interfere with them being allocated the same wireless resources, and interference between small base stations or between small base stations and macro base stations situation can be reduced.
可选地，所述小型基站向宏基站提供干扰相关信息可包括：小型基站通过有线或无线接口向宏基站发送干扰相关信息；或者小型基站通过小型基站网关向宏基站转发干扰相关信息。Optionally, the small base station providing the interference-related information to the macro base station may include: the small base station sends the interference-related information to the macro base station through a wired or wireless interface; or the small base station forwards the interference-related information to the macro base station through a small base station gateway.
可选地，所述小型基站向宏基站提供干扰相关信息可包括：小型基站在开机后或检测到干扰后，检测自身位置，获得自身位置信息。进一步地，当小型基站检测到该小型基站的位置与前一次上报的位置相同，向宏基站提供位置不变的确认信息；当小型基站检测到该小型基站的位置与前一次上报的位置不同，向宏基站提供检测到的新位置信息。Optionally, the small base station providing the interference-related information to the macro base station may include: after the small base station is powered on or detects interference, detecting its own location to obtain its own location information. Further, when the small base station detects that the position of the small base station is the same as the position reported last time, it provides confirmation information that the position remains unchanged to the macro base station; when the small base station detects that the position of the small base station is different from the position reported last time, The detected new location information is provided to the macro base station.
可选地，所述小型基站可检测其设备能力范围内频段的信号强度，并在所述干扰相关信息中携带所述信号强度的信息。Optionally, the small base station may detect the signal strength of a frequency band within its device capability, and carry information about the signal strength in the interference-related information.
进一步地，所述干扰相关信息还可包括：小型基站的标识、小型基站的能力信息，所述能力信息包括：小型基站的载频范围、对应载频的带宽范围和最大发射功率。当宏基站已经获知小型基站的标识，则无需小型基站上报其标识。Further, the interference-related information may further include: an identifier of the small base station, and capability information of the small base station, where the capability information includes: a carrier frequency range of the small base station, a bandwidth range of a corresponding carrier frequency, and a maximum transmit power. When the macro base station has already learned the identity of the small base station, there is no need for the small base station to report its identity.
可选地，所述方法还可包括：所述小型基站为自身选择无线资源，并向宏基站提供其选择的无线资源的信息；相应地，所述小型基站获取宏基站分配的无线资源的信息包括：所述小型基站获取宏基站为其重新分配的无线资源的信息，或者所述小型基站获取宏基站同意其选择的无线资源的确认信息。Optionally, the method may further include: the small base station selects wireless resources for itself, and provides the information of the selected wireless resources to the macro base station; correspondingly, the small base station obtains the information of the wireless resources allocated by the macro base station It includes: the small base station obtains the information of the wireless resource reallocated by the macro base station, or the small base station obtains confirmation information that the macro base station agrees to the wireless resource selected by the small base station.
可选地，当所述小型基站覆盖区域被分割成多个小区时，所述干扰相关信息内还可包括所述多个小区的无线资源使用情况。Optionally, when the coverage area of the small base station is divided into multiple cells, the interference-related information may further include radio resource usage of the multiple cells.
在上述实施例中，小型基站向其对应的宏基站提供干扰相关信息，以便宏基站基于所述干扰相关信息为小型基站分配无线资源，但实际上分配相关资源的主体也可以是一个独立的设备，例如可以是一个OAM(OperationAdministration Maintenance，操作管理维护)设备，所述OAM设备可对日常网络和业务进行分析、预测、规划和配置，本实施例对此不进行限定。In the above embodiments, the small base station provides interference-related information to its corresponding macro base station, so that the macro base station allocates wireless resources for the small base station based on the interference-related information, but in fact, the subject of allocating related resources can also be an independent device , for example, may be an OAM (Operation Administration Maintenance, operation management and maintenance) device, and the OAM device can analyze, predict, plan and configure daily networks and services, which is not limited in this embodiment.
图3b为本发明的实施例提供的另一种无线资源调度方法的示意图，该方法包括：Fig. 3b is a schematic diagram of another wireless resource scheduling method provided by an embodiment of the present invention, the method includes:
S31b：宏基站获取小型基站提供的干扰相关信息，所述干扰相关信息中包括小型基站的位置信息；S31b: The macro base station acquires interference-related information provided by the small base station, where the interference-related information includes location information of the small base station;
S32b：所述宏基站基于所述小型基站的位置信息，确定该小型基站的干扰空间范围内无线资源使用情况；S32b: Based on the location information of the small base station, the macro base station determines the usage of wireless resources within the interference space range of the small base station;
S33b：当宏基站的无线资源集合内存在干扰空间范围未使用的无线资源时，所述宏基站将所述未使用的无线资源分配给所述小型基站；S33b: When there are unused radio resources in the interference space range in the radio resource set of the macro base station, the macro base station allocates the unused radio resources to the small base station;
S34b：宏基站向所述小型基站提供分配的无线资源的信息。S34b: The macro base station provides the small base station with information about the allocated wireless resources.
本实施例的宏基站可获取其下属多个小型基站的干扰相关信息，并基于小型基站的干扰相关信息进行无线资源的分配，减少互相形成潜在干扰的小型基站间被分配相同无线资源的可能性，降低小型基站间或小型基站与宏基站间的潜在干扰。本实施例中所述小型基站干扰空间范围未使用的无线资源是宏基站无线资源集合中未被干扰空间范围使用的无线资源，所述干扰站点可以是干扰源站点或被所述小型基站干扰的站点。进一步地，当宏基站的无线资源集合内不存在干扰空间范围未使用的无线资源时，所述宏基站在所述无线资源集合内选择对小型基站干扰最低的无线资源，将所选择的无线资源分配给所述小型基站。The macro base station in this embodiment can obtain the interference-related information of multiple small base stations under it, and allocate wireless resources based on the interference-related information of the small base stations, so as to reduce the possibility that the same wireless resources are allocated between small base stations that may interfere with each other. , to reduce potential interference between small base stations or between small base stations and macro base stations. In this embodiment, the wireless resources not used by the interference space range of the small base station are wireless resources not used by the interference space range in the wireless resource set of the macro base station, and the interference site may be an interference source site or a site interfered by the small base station site. Further, when there is no radio resource unused in the interference space range in the radio resource set of the macro base station, the macro base station selects the radio resource with the lowest interference to the small base station in the radio resource set, and assigns the selected radio resource to assigned to the small base station.
可选地，宏基站向所述小型基站提供分配的无线资源的信息可包括：宏基站通过有线或无线接口将分配的无线资源的信息发送给小型基站，或者宏基站通过小型基站网关将分配的无线资源的信息转发至小型基站。Optionally, the macro base station providing the small base station with the allocated wireless resource information may include: the macro base station sends the allocated wireless resource information to the small base station through a wired or wireless interface, or the macro base station sends the allocated wireless resource information to the small base station through a small base station gateway. The information of the radio resource is forwarded to the small base station.
可选地，所述干扰相关信息中可包括小型基站的能力信息，或者宏基站还可从小型基站的移动管理实体处获取小型基站的能力信息；所述能力信息还包括：小型基站的标识、小型基站的载频范围、相应载频的带宽范围和最大发射功率。当然，宏基站可预先保存有其下属每个小型基站的能力信息，本实施例对此不进行限定。Optionally, the interference-related information may include capability information of the small base station, or the macro base station may also obtain the capability information of the small base station from the mobility management entity of the small base station; the capability information further includes: an identifier of the small base station, The carrier frequency range of the small base station, the bandwidth range of the corresponding carrier frequency and the maximum transmit power. Of course, the macro base station may pre-save the capability information of each of its subordinate small base stations, which is not limited in this embodiment.
可选地，宏基站可获取小型基站为自身选择的无线资源的信息，确定小型基站选择的无线资源是否合适，宏基站可为该小型基站重新分配无线资源，或向该小型基站发送同意其选择的无线资源的确认信息。Optionally, the macro base station can obtain information about the wireless resources selected by the small base station for itself, determine whether the wireless resources selected by the small base station are suitable, and the macro base station can re-allocate the wireless resources for the small base station, or send a message agreeing to its selection to the small base station. The confirmation information of the wireless resource.
在上述实施例中，小型基站向其对应的宏基站提供干扰相关信息，以便宏基站基于所述干扰相关信息为小型基站分配无线资源，但实际上分配相关资源的主体也可以是一个独立的设备，例如一个OAM(Operation AdministrationMaintenance，操作管理维护)设备，所述OAM设备可对日常网络和业务进行分析、预测、规划和配置，本实施例对此不进行限定。In the above embodiments, the small base station provides interference-related information to its corresponding macro base station, so that the macro base station allocates wireless resources for the small base station based on the interference-related information, but in fact, the subject of allocating related resources can also be an independent device , such as an OAM (Operation Administration Maintenance, operation management and maintenance) device, the OAM device can analyze, predict, plan and configure daily networks and services, which is not limited in this embodiment.
图4为本发明实施例提供的一种小型基站的干扰情况的示意图。在本实施例中，所述宏基站基于所述干扰相关信息为所述小型基站分配无线资源，宏基站在获取到小型基站发送的位置信息后，依据小型基站的能力信息，可估算出小型基站大概的服务小区半径r，并将半径R覆盖范围作为该小型基站干扰空间范围，当然宏基站也可预先保存其下属每个小型基站的干扰空间范围。宏基站可预览小型基站A的干扰空间内其它各类基站服务区域(包括其它小型基站或其它宏基站)已经使用的频率资源集合，若仍有其他剩余无线资源，将剩余的无线资源分配给小型基站A；否则，选择已经使用的频率资源集合中对小型基站A干扰等级最低的无线资源，即如果小型基站A使用该干扰等级最低的无线资源，其收到的干扰是较小的。可以理解，小型基站的干扰空间确定可以存在多种实现方式，下面仅举几个实例进行说明，所述实例不用于限定本发明。在一个实例中可仅考虑位置的干扰空间，如图4所示，宏基站可获得其下属所有已开机的小型基站的位置信息，以上报位置信息的小型基站A为中心，在特定半径R所在范围内寻找其它站点，所述特定半径R大于小型基站A的服务小区半径r。如果在所述特定范围内存在小型基站B或宏基站C，认为小型基站B或宏基站C可作为小型基站A的潜在干扰站点，小型基站B或宏基站C在干扰空间内使用的资源不会被分配给小型基站A；如果小型基站D未在特定范围内，该小型基站D不是小型基站A的潜在干扰站点，小型基站D使用的资源可以被分配给小型基站A。此外，不同宏基站之间可通过X2接口或其他方式获取自己关注的小型基站的无线资源使用信息。在另一实例中，干扰空间的定义可不仅仅考虑位置信息，也可考虑其它小型基站的功率信息，防止远处的小型基站发射功率较大对该小型基站A产生的干扰大，此时设定一个值v＝f(P，d)，函数表现形式可多样，如v＝P/d，P可为小型基站的发射功率或最大发射功率，d为小型基站之间的距离。宏基站可为小型基站A计算其他站点E对应的v值，若v值大于预设的某一阈值v0，则其他站点E在小型基站A的干扰空间内。即便不同站点间距离较远，由于站点发射功率大，可能造成潜在干扰，本实例可避免将为存在潜在干扰的基站分配同样的资源，减少无线资源的无效分配。在另一实例中，宏基站可获取小型基站检测到的各个不同频点的信号信息，宏基站在进行资源分配时，不仅仅考虑干扰空间，还需要考虑小型基站附近真实的信号使用状况，从而做出更精确的判断。本实例需要小型基站自检一下自身周围的无线频点(也称为载频)、带宽和对应的信号强度，只是这个过程会消耗一定时间并增加信令开销。FIG. 4 is a schematic diagram of an interference situation of a small base station provided by an embodiment of the present invention. In this embodiment, the macro base station allocates wireless resources for the small base station based on the interference-related information. After obtaining the location information sent by the small base station, the macro base station can estimate the small base station according to the capability information of the small base station. An approximate serving cell radius r, and the radius R coverage as the interference space range of the small base station, of course, the macro base station can also pre-store the interference space range of each of its subordinate small base stations. The macro base station can preview the set of frequency resources already used by other types of base stations (including other small base stations or other macro base stations) in the interference space of small base station A. If there are other remaining wireless resources, the remaining wireless resources will be allocated to small base stations. Base station A; otherwise, select the radio resource with the lowest interference level to the small base station A in the frequency resource set that has been used, that is, if the small base station A uses the radio resource with the lowest interference level, the interference it receives is relatively small. It can be understood that there may be multiple implementation manners for determining the interference space of the small base station, and only a few examples are given below for illustration, and the examples are not intended to limit the present invention. In one example, only the location interference space can be considered. As shown in Figure 4, the macro base station can obtain the location information of all its subordinate small base stations that have been turned on. Center on the small base station A that reported the location information, within a certain radius R The specific radius R is greater than the serving cell radius r of the small base station A. If there is small base station B or macro base station C within the specified range, it is considered that small base station B or macro base station C can be used as a potential interference site of small base station A, and the resources used by small base station B or macro base station C in the interference space will not allocated to small base station A; if small base station D is not within a specific range and the small base station D is not a potential interference site of small base station A, resources used by small base station D can be allocated to small base station A. In addition, different macro base stations can obtain the wireless resource usage information of the small base station that they care about through the X2 interface or other methods. In another example, the definition of the interference space can not only consider the location information, but also consider the power information of other small base stations, so as to prevent the large transmission power of the small base stations in the distance from causing great interference to the small base station A. At this time, set A value v=f(P, d), the function expression can be various, such as v=P/d, P can be the transmission power or the maximum transmission power of the small base station, and d is the distance between the small base stations. The macro base station can calculate the v value corresponding to the other station E for the small base station A, and if the v value is greater than a preset threshold v0 , then the other station E is in the interference space of the small base station A. Even if the distance between different stations is long, potential interference may be caused due to the high transmission power of the stations. This example can avoid allocating the same resources to base stations with potential interference, and reduce the invalid allocation of wireless resources. In another example, the macro base station can obtain the signal information of different frequency points detected by the small base station. When the macro base station allocates resources, it not only considers the interference space, but also needs to consider the real signal usage conditions near the small base station, so that make more precise judgments. In this example, the small base station needs to self-check the wireless frequency points (also called carrier frequency), bandwidth and corresponding signal strength around itself, but this process will consume a certain amount of time and increase signaling overhead.
本实施例小型基站通过上报位置信息，使宏基站避免选择易引起干扰的无线资源分配给该小型基站，保证分配给不同小型基站的无线资源的正交性，提高服务质量。In this embodiment, the small base station reports location information to prevent the macro base station from selecting interference-prone wireless resources to be allocated to the small base station, thereby ensuring the orthogonality of wireless resources allocated to different small base stations and improving service quality.
下面以家庭基站为例介绍本发明的一个实施例。在家庭基站系统中，每个HeNB都至少处在一个Macro eNB覆盖小区内，当一个HeNB接入一个MacroeNB时，该Macro eNB称为该HeNB的Donor eNB。HeNB可以没有对应的HeNB网关，则HeNB与Donor eNB可直接通信。若HeNB有对应的HeNBGW，则HeNB可将其相关信息通过HeNBGW上报给Donor eNB，Donor eNB在计算出调度信息后可先发送到HeNBGW，再由HeNBGW发送给HeNB；当然，HeNB在存在HeNBGW网关的情况下也可与Macro eNB直接通信。图5为本发明的实施例提供的一种无线资源调度方法的简化流程示意图，该方法包括：An embodiment of the present invention is introduced below by taking a home base station as an example. In the home base station system, each HeNB is located in at least one Macro eNB coverage cell. When a HeNB accesses a Macro eNB, the Macro eNB is called the Donor eNB of the HeNB. The HeNB may not have a corresponding HeNB gateway, and the HeNB and the Donor eNB can communicate directly. If the HeNB has a corresponding HeNBGW, the HeNB can report its relevant information to the Donor eNB through the HeNBGW. After the Donor eNB calculates the scheduling information, it can first send it to the HeNBGW, and then the HeNBGW sends it to the HeNB; In some cases, it can also communicate directly with Macro eNB. Fig. 5 is a schematic flowchart of a simplified radio resource scheduling method provided by an embodiment of the present invention, the method including:
S51：家庭基站开机或检测到干扰。S51: The femtocell is powered on or detects interference.
S52：家庭基站检测自身所在位置。HeNB可在开机后通过所述检测判断自身位置是否发生变化。S52: The home base station detects its own location. After the HeNB is turned on, it can determine whether its own position has changed through the detection.
S53：家庭基站向其施主基站上报自身的位置信息。每次HeNB开机后或在检测到干扰超过预定阈值时，都要先检测自身位置信息，若该HeNB的位置信息没有发生变化，其上报的位置信息可以是一个位置未变的确认信息；若位置信息发生变化，可上报其当前位置信息给Donor eNB。当然，HeNB也可通过网关向Donor eNB提供其位置信息，即所述位置信息由HeNB网关转发至Donor eNB。HeNB还可上报自身HeNB标识和该HeNB能力信息，所述能力信息包含HeNB的载频范围、带宽范围、最大发射功率等，以便Donor eNB根据这些上报的信息进行资源调度。当然，如果HeNB发现自身位置变更时，可以选择不上报能力信息，当Donor eNB发现其没有存储该HeNB的能力信息时，向HeNB获取相应能力信息，或者Donor eNB可请求MME或HeNBGW发送所述能力信息。HeNB可在向Donor eNB发起接入时上报所述信息。S53: The home base station reports its own location information to its donor base station. Each time the HeNB is turned on or when it detects that interference exceeds a predetermined threshold, it must first detect its own location information. If the location information of the HeNB has not changed, the location information reported by it can be a confirmation message that the location has not changed; if the location If the information changes, it can report its current location information to Donor eNB. Of course, the HeNB can also provide its location information to the Donor eNB through the gateway, that is, the location information is forwarded by the HeNB gateway to the Donor eNB. The HeNB can also report its own HeNB identity and the HeNB capability information, the capability information includes the carrier frequency range, bandwidth range, maximum transmit power, etc. of the HeNB, so that the Donor eNB can perform resource scheduling according to the reported information. Of course, if the HeNB finds that its location has changed, it can choose not to report the capability information. When the Donor eNB finds that it does not store the capability information of the HeNB, it can obtain the corresponding capability information from the HeNB, or the Donor eNB can request the MME or HeNBGW to send the capability information. The HeNB may report the information when initiating access to the Donor eNB.
S54：施主基站根据家庭基站上报的位置信息，分配无线资源给家庭基站。Donor eNB可根据其收集的宏小区中的载波分配情况，以及该HeNB周围HeNB使用的频带信息和对应的信号强度信息，为该HeNB和其下属UE间的链路分配无线资源。所述信号强度信息可以是RSRP(Reference SignalReceiving Power，参考信号接收功率)指标。本实施例中分配无线资源的方式与现有认知无线技术中的资源分配方式相类似，Donor eNB可收集多个HeNB上报的位置信息，在综合考虑一个HeNB和周边HeNB的位置相对情况、以及周边HeNB的资源分配和信号强度后，为每个HeNB分配合理的无线资源。S54: The donor base station allocates wireless resources to the home base station according to the location information reported by the home base station. The Donor eNB can allocate radio resources for the link between the HeNB and its subordinate UEs according to the carrier allocation in the macro cell collected by it, as well as the frequency band information used by the HeNB around the HeNB and the corresponding signal strength information. The signal strength information may be an RSRP (Reference Signal Receiving Power, reference signal receiving power) index. The method of allocating wireless resources in this embodiment is similar to the resource allocation method in the existing cognitive wireless technology. The Donor eNB can collect the location information reported by multiple HeNBs, and comprehensively consider the relative location of a HeNB and surrounding HeNBs, and After the resource allocation and signal strength of surrounding HeNBs, a reasonable wireless resource is allocated for each HeNB.
S55：施主基站向家庭基站发送无线资源的分配信息，以指示分配的无线资源。S55: The donor base station sends radio resource allocation information to the home base station, so as to indicate the allocated radio resources.
S56：家庭基站利用所述分配的无线资源为其下属用户设备提供服务。Donor eNB为HeNB分配的资源是用于为HeNB下属UE服务，如果HeNB与其下属UE是无线连接，HeNB可打开其接口并与所述UE在无线链路上使用分配的资源传输数据。S56: The home base station uses the allocated radio resources to provide services for its subordinate user equipments. The resources allocated by the Donor eNB to the HeNB are used to serve the UEs subordinate to the HeNB. If the HeNB and its subordinate UEs are wirelessly connected, the HeNB can open its interface and use the allocated resources to transmit data with the UE on the wireless link.
本实施例HeNB通过上报位置信息，使得Donor eNB能根据其上报信息分配合理的无线资源，用于HeNB与其下属UE的业务，在Donor eNB为HeNB分配资源时可减少相邻HeNB间出现互相干扰的可能，提高数据传输质量。In this embodiment, the HeNB reports the location information, so that the Donor eNB can allocate reasonable wireless resources according to the reported information, which is used for the business of the HeNB and its subordinate UEs, and when the Donor eNB allocates resources for the HeNB, the occurrence of mutual interference between adjacent HeNBs can be reduced. Possibly, improve data transfer quality.
可以理解，在上述过程S54中，HeNB还可检测周围无线信号强度并将该周围无线信号强度信息上报给Donor eNB。HeNB可扫描其设备能力范围内的每个频段，检测每个频段的信号强度，将上述信息上报给Donor eNB。若DonoreNB获知HeNB周围某一特定频段信号强，则不会将该频段分配给HeNB和其下属UE间的链路，而是选取其他合适的无线资源进行分配。除了位置信息和HeNB检测的无线信号信息，HeNB还可上报自身HeNB标识，让Donor eNB知道当前上报信息的节点能力是HeNB类型的能力。It can be understood that in the above process S54, the HeNB can also detect the surrounding wireless signal strength and report the surrounding wireless signal strength information to the Donor eNB. HeNB can scan each frequency band within its equipment capability, detect the signal strength of each frequency band, and report the above information to Donor eNB. If the DonoreNB knows that the signal of a specific frequency band around the HeNB is strong, it will not allocate the frequency band to the link between the HeNB and its subordinate UEs, but select other suitable wireless resources for allocation. In addition to the location information and the wireless signal information detected by the HeNB, the HeNB can also report its own HeNB identity to let the Donor eNB know that the node capability currently reporting the information is the capability of the HeNB type.
图6a为本发明的实施例提供的另一种无线资源调度方法的简化流程示意图，该方法包括：Fig. 6a is a schematic flowchart of another radio resource scheduling method provided by an embodiment of the present invention, the method includes:
S61a：家庭基站开机或检测到干扰。S61a: The home base station is powered on or detects interference.
S62a：家庭基站检测自身所在位置和周围无线信号强度，并为自身选择无线资源。S62a: The home base station detects its location and surrounding wireless signal strength, and selects wireless resources for itself.
S63a：家庭基站向其施主基站上报自身的位置信息、周围无线信号强度信息和所选择的无线资源。每次HeNB开机后或在检测到干扰超过预定阈值时，都要先检测自身位置信息，若该HeNB的位置信息没有发生变化，其上报的位置信息可以是一个位置未变的确认信息；若位置信息发生变化，可上报其当前位置信息给Donor eNB。HeNB还可拥有自主选择无线资源的能力，并将选择的资源上报给Donor eNB。HeNB可在向Donor eNB发起接入时上报所述信息。S63a: The HNB reports its location information, surrounding wireless signal strength information, and selected wireless resources to its donor base station. Each time the HeNB is turned on or when it detects that interference exceeds a predetermined threshold, it must first detect its own location information. If the location information of the HeNB has not changed, the location information reported by it can be a confirmation message that the location has not changed; if the location If the information changes, it can report its current location information to Donor eNB. HeNB can also have the ability to independently select wireless resources, and report the selected resources to Donor eNB. The HeNB may report the information when initiating access to the Donor eNB.
S64a：施主基站确定家庭基站所选择的无线资源是否合适，如果否，为家庭基站分配新的无线资源。Donor eNB可根据其收集的宏小区中的载波分配情况，以及该HeNB周围HeNB使用的频带信息和对应的信号强度信息，判断该HeNB所选无线资源是否合适。Donor eNB可收集多个HeNB上报的位置信息，在综合考虑一个HeNB和周边HeNB的位置相对情况、以及周边HeNB的资源分配和信号强度后，确认该HeNB自己选择的无线资源是否合适。若DonoreNB确定该种选择合适，则仅发送确认信息即可，节省了传输中用于分配无线资源的比特信息；如果Donor eNB确定该种选择不合适，可自己为HeNB分配的新无线资源。S64a: the donor base station determines whether the radio resource selected by the home base station is suitable, and if not, allocates a new radio resource for the home base station. The Donor eNB can judge whether the radio resource selected by the HeNB is appropriate according to the carrier allocation in the macro cell collected by it, as well as the frequency band information used by the HeNB around the HeNB and the corresponding signal strength information. The Donor eNB can collect the location information reported by multiple HeNBs, and after comprehensively considering the relative location of a HeNB and surrounding HeNBs, as well as the resource allocation and signal strength of surrounding HeNBs, it can confirm whether the wireless resources selected by the HeNB are suitable. If Donor eNB determines that this option is appropriate, it only needs to send confirmation information, which saves the bit information used to allocate radio resources in transmission; if Donor eNB determines that this option is not appropriate, it can allocate new radio resources for HeNB itself.
S65a：施主基站向家庭基站发送无线资源的分配信息，以指示分配的新无线资源。S65a: The donor base station sends radio resource allocation information to the home base station, so as to indicate the allocated new radio resource.
S66a：家庭基站利用所述分配的新无线资源为其下属用户设备提供服务。如果Donor eNB确认HeNB所选择的资源是合适的，则HeNB会收到来自Donor eNB的确认消息，可使用其自己选择的资源为其下属UE服务。S66a: The home base station uses the allocated new radio resources to provide services for its subordinate user equipments. If the Donor eNB confirms that the resources selected by the HeNB are suitable, the HeNB will receive a confirmation message from the Donor eNB, and can use the resources selected by itself to serve its subordinate UEs.
本实施例的HeNB具有自我选择无线资源的能力，并向Donor eNB上报位置和周围无线信号强度等相关信息，由Donor eNB确认HeNB的选择是否合适，必要时可由Donor eNB为HeNB分配新的资源，减少相邻HeNB间出现互相干扰的可能。The HeNB in this embodiment has the ability to self-select wireless resources, and reports relevant information such as location and surrounding wireless signal strength to the Donor eNB, and the Donor eNB confirms whether the selection of the HeNB is appropriate, and the Donor eNB can allocate new resources for the HeNB if necessary, Reduce the possibility of mutual interference between adjacent HeNBs.
在上述实施例中，HeNB在自行选择无线资源之后，可直接建立与下属UE间的无线链路并采用自行选择的无线资源服务于该UE。若Donor eNB确定HeNB所作选择合适，仅发送确认信息；否则Donor eNB确定HeNB的选择不合适，可重新分配无线资源给HeNB。HeNB可根据Donor eNB新分配的资源进行更改，采用新的无线资源为所述UE服务。采用这种方法可保证HeNB与其下属UE之间快速建立链路，为实时业务提供良好的服务。如图6b所示，另一种无线资源调度方法的简化流程包括：In the above embodiment, after the HeNB selects the radio resource, it can directly establish a radio link with the subordinate UE and use the self-selected radio resource to serve the UE. If the Donor eNB determines that the selection made by the HeNB is appropriate, it only sends a confirmation message; otherwise, the Donor eNB determines that the selection of the HeNB is not appropriate, and can reallocate wireless resources to the HeNB. The HeNB can make changes according to the resources newly allocated by the Donor eNB, and use new radio resources to serve the UE. Using this method can ensure that the link between the HeNB and its subordinate UEs can be quickly established, and provide good services for real-time services. As shown in Figure 6b, the simplified process of another wireless resource scheduling method includes:
S61b：家庭基站开机或检测到干扰。S61b: The femtocell is powered on or detects interference.
S62b：家庭基站检测自身所在位置和周围无线信号强度，并为自身选择无线资源。S62b: The home base station detects its location and surrounding wireless signal strength, and selects wireless resources for itself.
S63b：家庭基站向其施主基站上报自身的位置信息、周围无线信号强度信息和所选择的无线资源。具体上报过程可参见上一实施例。S63b: The HNB reports its location information, surrounding wireless signal strength information, and selected wireless resources to its donor base station. For the specific reporting process, refer to the previous embodiment.
S64b：施主基站确定家庭基站所选择的无线资源是否合适，如果否，为家庭基站分配新的无线资源。具体资源重分配过程可参见上一实施例。S64b: the donor base station determines whether the radio resource selected by the home base station is suitable, and if not, allocates a new radio resource for the home base station. For the specific resource reallocation process, refer to the previous embodiment.
S65b：使用所述选择的无线资源服务于自身终端。S65b: Use the selected wireless resource to serve the own terminal.
S66b：施主基站向家庭基站发送无线资源的分配信息，以指示分配的新无线资源。S66b: The donor base station sends radio resource allocation information to the home base station, so as to indicate the allocated new radio resource.
S67b：家庭基站利用所述分配的新无线资源为其下属用户设备提供服务。S67b: The home base station uses the allocated new radio resources to provide services for its subordinate user equipments.
可以理解，S64b和S65b由施主基站和家庭基站分别执行，彼此间并不受先后顺序的限制。It can be understood that S64b and S65b are respectively performed by the donor base station and the home base station, and there is no restriction on the order of each other.
在上述实施例中，HeNB可在向Donor eNB发起接入过程时上报自身位置信息、周围无线信号强度信息和自身HeNB标识，还可上报HeNB indication标识(家庭基站身份确认标识)；HeNB也可在每次开机后，利用HeNB与DonoreNB的接口，单独上报HeNB indication标识。所述HeNB indication标识用于指示上报信息的设备是一个HeNB，使得Donor eNB知道该设备具备HeNB的能力，而不是UE或者其他无线节点。In the above embodiment, the HeNB can report its own location information, surrounding wireless signal strength information and its own HeNB identity when initiating the access process to the Donor eNB, and can also report the HeNB indication identity (identity confirmation identity of the home base station); After each boot, use the interface between HeNB and DonoreNB to report the HeNB indication separately. The HeNB indication is used to indicate that the device reporting the information is a HeNB, so that the Donor eNB knows that the device has the capability of a HeNB, rather than a UE or other wireless nodes.
如果HeNB与Donor eNB间存在直接通信接口，可在二者间直接传递信息。如果HeNB与Donor eNB间不存在直接通信接口，而是通过HeNBGW通信，HeNB可将需要上报的信息上报给HeNBGW，再由HeNBGW将所述信息上报给该HeNB对应的Donor eNB；相应地，Donor eNB也会将自身信息发送到HeNBGW，再由HeNBGW将该信息发送给HeNB。可以理解，在上述实施例中，HeNBGW可向Donor eNB上报自身能力信息；若HeNBGW已经保存了HeNB的能力信息，则HeNB可不必将自身能力信息上报Donor eNB；也可由HeNBGW将其存储的HeNB能力信息连同其他相关信息一起上报给DonoreNB；或者，当Donor eNB发现自己没有HeNB的能力信息时，可向HeNBGW获取该能力信息，或者也可请求MME发送该能力信息。若Donor eNB选择向HeNBGW获取能力信息，HeNBGW可将自己存储的HeNB能力信息上报给Donor eNB，若没有该能力信息，则可向HeNB索取能力信息，再向Donor eNB进行上报。If there is a direct communication interface between the HeNB and the Donor eNB, information can be directly transferred between the two. If there is no direct communication interface between the HeNB and the Donor eNB, but communicates through the HeNBGW, the HeNB can report the information to be reported to the HeNBGW, and then the HeNBGW will report the information to the Donor eNB corresponding to the HeNB; correspondingly, the Donor eNB It will also send its own information to the HeNBGW, and then the HeNBGW will send the information to the HeNB. It can be understood that, in the above embodiment, HeNBGW can report its own capability information to Donor eNB; if HeNBGW has saved the capability information of HeNB, then HeNB does not need to report its own capability information to Donor eNB; HeNBGW can also store the HeNB capability The information is reported to the DonoreNB together with other relevant information; or, when the Donor eNB finds that it does not have the capability information of the HeNB, it can obtain the capability information from the HeNBGW, or request the MME to send the capability information. If Donor eNB chooses to obtain capability information from HeNBGW, HeNBGW can report the HeNB capability information stored by itself to Donor eNB. If there is no such capability information, it can request capability information from HeNB, and then report to Donor eNB.
在上述实施例中，HeNB可仅有一个小区，也可存在多个小区。当一个HeNB存在多个小区时，则上述的上报的相关信息内容将细化到HeNB的小区(cell)级别。例如HeNB可上报HeNB的每个小区的无线频率使用情况；DonoreNB为该HeNB下属UE分配的资源也可精确到cell级别，即针对HeNB的每个小区进行资源分配。In the above embodiment, the HeNB may have only one cell, or there may be multiple cells. When there are multiple cells in one HeNB, the related information reported above will be refined to the cell (cell) level of the HeNB. For example, the HeNB can report the radio frequency usage of each cell of the HeNB; the resource allocated by the DonoreNB to the UE subordinate to the HeNB can also be accurate to the cell level, that is, resource allocation is performed for each cell of the HeNB.
在上述实施例中，Donor eNB利用它和HeNB或者HeNBGW间的接口，获取HeNB上报的信息，该信息可包括干扰管理、资源调度需要的信息，并利用该信息进行资源分配，可避免将相同资源分配给在空间上相近、或彼此干扰度大的不同HeNB，有效提升了频谱利用率，降低干扰。In the above embodiments, the Donor eNB uses the interface between it and the HeNB or HeNBGW to obtain the information reported by the HeNB, which may include information required for interference management and resource scheduling, and uses this information to allocate resources, which can avoid displacing the same resources Allocation to different HeNBs that are spatially similar or have high interference with each other effectively improves spectrum utilization and reduces interference.
在图5、图6a和图6b三个实施例中，小型基站向其对应的宏基站提供干扰相关信息，以便宏基站基于所述干扰相关信息为小型基站分配无线资源，但实际上分配相关资源的主体也可以是一个独立的设备，例如一个OAM(Operation Administration Maintenance，操作管理维护)设备，所述OAM设备可对日常网络和业务进行分析、预测、规划和配置，本实施例对此不进行限定。In the three embodiments of Fig. 5, Fig. 6a and Fig. 6b, the small base station provides interference-related information to its corresponding macro base station, so that the macro base station allocates wireless resources for the small base station based on the interference-related information, but actually allocates related resources The main body can also be an independent device, such as an OAM (Operation Administration Maintenance, operation management and maintenance) device, the OAM device can analyze, predict, plan and configure the daily network and business, this embodiment does not limited.
图7为本发明的实施例提供的一种小型基站的示意图，所述小型基站70包括：FIG. 7 is a schematic diagram of a small base station provided by an embodiment of the present invention. The small base station 70 includes:
信息上报单元71，用于发送干扰相关信息，所述干扰相关信息中包括所述小型基站70的位置信息；An information reporting unit 71, configured to send interference-related information, where the interference-related information includes location information of the small base station 70;
信息获取单元72，获取宏基站分配的无线资源的信息，所述无线资源是由所述宏基站基于所述干扰相关信息分配给所述小型基站70；The information obtaining unit 72 is configured to obtain information about wireless resources allocated by the macro base station, where the wireless resources are allocated to the small base station 70 by the macro base station based on the interference-related information;
通信单元73，用于利用所述无线资源为其用户设备提供服务。The communication unit 73 is configured to use the radio resource to provide services for its user equipment.
本实施例的小型基站70包括但不限于Pico、HeNB和Femto在内的各种小型基站，其与终端类似可接入宏基站，接受宏基站分配的资源，并利用所述资源作为其下属终端的服务站点，为终端提供服务。小型基站通过向宏基站提供自身干扰相关信息，有利于宏基站为小型基站合理分配无线资源，减少小型基站间或小型基站与宏基站间可能出现的干扰。The small base station 70 in this embodiment includes, but is not limited to, various small base stations including Pico, HeNB, and Femto. Similar to a terminal, it can access a macro base station, accept resources allocated by the macro base station, and use the resources as its subordinate terminal The service site provides services for terminals. The small base station provides information related to its own interference to the macro base station, which is beneficial for the macro base station to reasonably allocate wireless resources for the small base station, and reduces possible interference between small base stations or between small base stations and macro base stations.
进一步地，所述小型基站70还可包括：检测单元74，耦合至所述信息上报单元71，用于检测小型基站70所在位置，并向所述信息上报单元71提供检测得到的所述小型基站70的位置信息。Further, the small base station 70 may further include: a detection unit 74, coupled to the information reporting unit 71, for detecting the location of the small base station 70, and providing the detected information of the small base station to the information reporting unit 71. 70 location information.
进一步地，所述小型基站70还可包括：选择单元，用于为所述小型基站70选择无线资源，并向宏基站提供所选择的无线资源的信息；相应地，信息获取单元72用于：获取宏基站同意小型基站70选择的无线资源的确认信息，或者宏基站为小型基站70重新分配的无线资源的信息。Further, the small base station 70 may further include: a selection unit, configured to select a wireless resource for the small base station 70, and provide information on the selected wireless resource to the macro base station; correspondingly, the information obtaining unit 72 is configured to: Obtain confirmation information that the macro base station agrees to the wireless resources selected by the small base station 70 , or information about wireless resources re-allocated by the macro base station for the small base station 70 .
图8为本发明的实施例提供的一种宏基站的示意图，所述宏基站80包括：FIG. 8 is a schematic diagram of a macro base station provided by an embodiment of the present invention, and the macro base station 80 includes:
信息获取单元81，用于获取小型基站提供的干扰相关信息，所述干扰相关信息中包括所述小型基站的位置信息；An information acquiring unit 81, configured to acquire interference-related information provided by the small base station, where the interference-related information includes location information of the small base station;
资源确定单元82，用于基于所述小型基站的位置信息，确定该小型基站的干扰空间范围内无线资源使用情况；A resource determining unit 82, configured to determine the wireless resource usage within the interference space range of the small base station based on the location information of the small base station;
资源分配单元83，用于当宏基站的无线资源集合内存在干扰空间范围未使用的无线资源时，将所述未使用的无线资源分配给所述小型基站；A resource allocation unit 83, configured to allocate the unused wireless resources to the small base station when there are unused wireless resources in the interference space range in the wireless resource set of the macro base station;
通知单元84，用于向所述小型基站提供分配的无线资源的信息。The notification unit 84 is configured to provide the small base station with information about the allocated wireless resources.
本实施例的宏基站80不但可直接为用户设备提供服务，还可为多个更小型号的基站作为服务站点，获取其下属多个小型基站的干扰相关信息，并基于小型基站的干扰相关信息进行无线资源的分配，减少互相形成潜在干扰的小型基站间被分配相同无线资源的可能性，降低小型基站间或小型基站与宏基站间的干扰。The macro base station 80 in this embodiment can not only directly provide services for user equipment, but also serve as a service site for multiple smaller base stations, obtain interference-related information of multiple small base stations under it, and based on the interference-related information of small base stations Allocate wireless resources, reduce the possibility of the same wireless resources being allocated between small base stations that cause potential interference with each other, and reduce interference between small base stations or between small base stations and macro base stations.
进一步地，所述资源分配单元83还可用于：当宏基站的无线资源集合内不存在干扰空间范围未使用的无线资源时，在无线资源集合内选择对小型基站干扰最低的无线资源，将所选择的无线资源分配给所述小型基站。Further, the resource allocation unit 83 is also configured to: when there is no wireless resource in the wireless resource set of the macro base station that is not used in the interference space range, select the wireless resource with the lowest interference to the small base station in the wireless resource set, and assign the The selected radio resource is allocated to the small base station.
进一步地，所述宏基站80还可包括：确定单元，用于获取小型基站为自身选择的无线资源的信息，确定所述小型基站选择的无线资源是否合适，如果所述小型基站选择的无线资源不合适，为所述小型基站重新分配无线资源。Further, the macro base station 80 may further include: a determination unit, configured to obtain information about the wireless resource selected by the small base station for itself, and determine whether the wireless resource selected by the small base station is appropriate, and if the wireless resource selected by the small base station is Inappropriate, re-allocate wireless resources for the small base station.
本实施例提供的宏基站可携带多个所述小型基站，也可携带其它终端设备，通过接收下属小型基站的干扰相关信息，合理地进行无线资源分配，使得不同小型基站间和小型基站与其它类型基站(如其它宏基站)间不会出现过大干扰，尽量避免2个可能存在干扰的站点被分配同样的资源，提高小型基站的服务质量。可以理解，宏基站分配无线资源的相关功能也可以由其它设备实现，例如一个OAM(Operation Administration Maintenance，操作管理维护)设备可包括所述信息获取单元81、资源确定单元82、资源分配单元83和通知单元84，以实现基于干扰相关信息为小型基站分配资源。The macro base station provided in this embodiment can carry multiple small base stations, and can also carry other terminal equipment. By receiving interference-related information of subordinate small base stations, wireless resource allocation is reasonably performed, so that different small base stations and small base stations communicate with other small base stations. There will be no excessive interference between base stations of different types (such as other macro base stations), and try to avoid two stations that may interfere with being allocated the same resource, so as to improve the service quality of small base stations. It can be understood that the functions related to the allocation of wireless resources by the macro base station can also be implemented by other devices, for example, an OAM (Operation Administration Maintenance) device can include the information acquisition unit 81, resource determination unit 82, resource allocation unit 83 and The notification unit 84 is configured to allocate resources for the small base station based on the interference related information.
图9为本发明实施例提供的一种实现无线资源调度的系统的示意图，该系统包括：FIG. 9 is a schematic diagram of a system for implementing wireless resource scheduling provided by an embodiment of the present invention, and the system includes:
至少一个小型基站91，用于向OAM设备93提供干扰相关信息，所述干扰相关信息中包括所述小型基站91的位置信息；获取OAM设备93分配的无线资源的信息，所述无线资源是由所述OAM设备93基于所述干扰相关信息分配给所述小型基站91的；利用所述无线资源为其下属用户设备提供服务。At least one small base station 91 is configured to provide interference-related information to the OAM device 93, where the interference-related information includes location information of the small base station 91; obtain information about wireless resources allocated by the OAM device 93, and the wireless resources are provided by The OAM device 93 allocates to the small base station 91 based on the interference-related information; uses the wireless resource to provide services for its subordinate user equipment.
宏基站92，为所述至少一个小型基站91提供接入网络服务；The macro base station 92 provides access network services for the at least one small base station 91;
所述OAM设备93，用于获取小型基站91提供的干扰相关信息，基于所述小型基站91的位置信息，确定该小型基站91的干扰空间范围内无线资源使用情况；当宏基站92的无线资源集合内存在干扰空间范围未使用的无线资源时，将所述未使用的无线资源分配给所述小型基站91，并向所述小型基站91提供分配的无线资源的信息。The OAM device 93 is configured to acquire interference-related information provided by the small base station 91, and determine the usage of wireless resources within the interference space range of the small base station 91 based on the location information of the small base station 91; when the wireless resource of the macro base station 92 When there are unused wireless resources in the interference space range in the set, allocate the unused wireless resources to the small base station 91, and provide information of the allocated wireless resources to the small base station 91.
所述OAM设备93可从宏基站92和小型基站91获取分配无线资源所需的必要信息，并完成无线资源分配的相关任务。该OAM设备93可与宏基站92以有线或无线相连，获取宏基站92的无线资源集合内及所述集合内资源使用情况等信息；该OAM设备93可与从小型基站91处直接获取信息，也可通过宏基站92间接获取，即宏基站92获取小型基站91的信息后将该信息转发给OAM设备93，此时的OAM设备93仅仅是一个设备，可以通过有线或无线方式与其它网络设备相连，本实施例对具体的实现方法不进行限定。The OAM device 93 can acquire necessary information required for radio resource allocation from the macro base station 92 and the small base station 91, and complete tasks related to radio resource allocation. The OAM device 93 can be wired or wirelessly connected to the macro base station 92 to obtain information such as the wireless resource set of the macro base station 92 and the usage of resources in the set; the OAM device 93 can directly obtain information from the small base station 91, It can also be obtained indirectly through the macro base station 92, that is, the macro base station 92 forwards the information to the OAM device 93 after obtaining the information of the small base station 91. At this time, the OAM device 93 is just a device that can communicate with other network devices through wired or wireless methods. In connection with each other, this embodiment does not limit the specific implementation method.
在本实施例中，小型基站91与宏基站92或OAM设备93间可通过小型基站网关94通信，如图9所示，几个小型基站91可以拥有一个小型基站网关94，由所述小型基站网关94在小型基站91与宏基站92或OAM设备93间转发数据，本实施例对此不做进一步限制。In this embodiment, the small base station 91 can communicate with the macro base station 92 or the OAM device 93 through the small base station gateway 94. As shown in FIG. 9, several small base stations 91 can have a small base station gateway 94, and the small base station The gateway 94 forwards data between the small base station 91 and the macro base station 92 or the OAM device 93, which is not further limited in this embodiment.
本领域普通技术人员可以理解上述方法实施例中的全部或部分流程，是可以通过计算机程序来指令相关硬件完成的，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。Those of ordinary skill in the art can understand that all or part of the processes in the above method embodiments can be completed by instructing related hardware through computer programs, and the programs can be stored in a computer-readable storage medium. , may include the flow of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.
以上所述仅为本发明的几个实施例，本领域的技术人员依据申请文件公开的内容可以对本发明进行各种改动或变型而不脱离本发明的精神和范围。本领域普通技术人员可以理解所述实施例间或不同实施例的特征间在不发生冲突的情况下可以互相结合形成新的实施例。The above descriptions are only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the present invention according to the contents disclosed in the application documents without departing from the spirit and scope of the present invention. Those skilled in the art can understand that the features of the embodiments or different embodiments can be combined with each other to form new embodiments without conflicts.
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