WO2009094801A1 - Système et procédé pour allouer dynamiquement des ressources - Google Patents

Système et procédé pour allouer dynamiquement des ressources Download PDF

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Publication number
WO2009094801A1
WO2009094801A1 PCT/CN2008/000173 CN2008000173W WO2009094801A1 WO 2009094801 A1 WO2009094801 A1 WO 2009094801A1 CN 2008000173 W CN2008000173 W CN 2008000173W WO 2009094801 A1 WO2009094801 A1 WO 2009094801A1
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WO
WIPO (PCT)
Prior art keywords
base station
home base
resource
access point
connection
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PCT/CN2008/000173
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English (en)
French (fr)
Inventor
Pu Kan
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Zte Corporation
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Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to PCT/CN2008/000173 priority Critical patent/WO2009094801A1/zh
Publication of WO2009094801A1 publication Critical patent/WO2009094801A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/12—Access point controller devices

Definitions

  • the present invention relates to a system and method for dynamically allocating resources of an AP (Access Point).
  • the method of the present invention is applicable to both GSM (Global System for Mobile Communications) / WCDMA (Wideband Code Division Multiple Access) I TD-CDMA (Time Division Synchronous Code Division Multiple Access) / LTE (Long Term Evolution) systems. Background technique
  • the method of configuring the base station is to plan the base stations that the system may be deployed in advance, and then configure parameters such as transmission and radio for the base stations on the AP.
  • the APC access
  • the point controller is configured with information such as N transmission nodes and N base stations. These configurations are typically determined when the base station is ready for deployment.
  • H base station far base station, home base station
  • base stations generally have a large number and a small coverage range.
  • H-base stations are different from ordinary base stations and generally have the following special features:
  • H base station configuration parameters are simple and basically the same. Some parameters can be fixedly configured, and some parameters can be generated adaptively, such as generated by the Euro-China algorithm. Therefore no need for road test or adjustment;
  • the H base station is not always online, but has a certain probability of access characteristics, that is, statistical characteristics. For example, there are many H base stations that may be powered on during busy hours, but not necessarily all of them are powered on. If you press the empirical data of ADSL (Asymmetric Digital Subscriber Loop), it may be a convergence ratio of 1: 4, that is, only 1/4 of the users turn on when busy. Usually, for example, there are fewer bootes during the day.
  • ADSL Asymmetric Digital Subscriber Loop
  • the H base station may be a network element such as a Nodeb (base station), an eNodeb (evolved base station), or a BTS (base transceiver station) having the above features.
  • a Nodeb base station
  • eNodeb evolved base station
  • BTS base transceiver station
  • the AP needs to allocate resources for the accessed base stations, and the resources include radio resources, such as cells, access resources of the transport layer, and SCTP coupling. This information is generally configured to be occupied. It is wasteful that the H base station is not always online. In addition, these H The access behavior of the base station is also difficult to predict, and it is easy for some APs to be busy and some APs to be idle.
  • radio resources such as cells, access resources of the transport layer, and SCTP coupling.
  • the technical problem to be solved by the present invention is to provide a system and method for dynamically allocating resources, improving resource utilization efficiency and solving the problem of uneven AP load.
  • the present invention provides a resource dynamic allocation method, which includes the following steps:
  • the home base station applies for resources to the home base station configuration server
  • the home base station configuration server allocates resources to the home base station, and returns corresponding resource configuration information to the home base station;
  • the home base station initiates a connection to the access point according to the resource configuration information.
  • the above method may further have the following feature: the home base station configuration server marks the resource as available or unavailable, and when the resource is allocated to the home base station, resources marked as unavailable are not allocated.
  • the foregoing method may further have the following feature: when the home base station configuration server returns resource configuration information to the home base station, the resource allocated to the home base station is marked as allocated, and the home base station configuration server allocates resources. After being marked as allocated, if the access point is not notified that the resource has been occupied within a specified time, the home base station configuration server marks the resource as available.
  • the foregoing method may further have the following feature: after the home base station initiates a connection to the access point and establishes a connection, the access point notifies the home base station to configure the server that the resource corresponding to the connection is occupied, the home The base station configuration server marks the resource corresponding to the connection as unavailable.
  • the foregoing method may further have the following feature: the home base station and the access point release a connection after establishing a connection, and the access point notifies the home base station to configure that the resource corresponding to the connection has been released, the home base station The configuration server marks the resource corresponding to the connection as available. Further, the foregoing method may further have the following feature: when the home base station configuration server allocates resources to the home base station, allocate according to the load of the access point, and allocate resources of the access point with the least load to the home base station. .
  • the foregoing method may further have the following feature: when the home base station initiates a connection to the access point, carrying the identification information of the home base station, and the access point configures a server to the home base station according to the identifier information. And requesting, for the home base station, the resource configuration information of the resource allocated to the home base station, where the home base station configuration server returns the resource configuration information to the access point, where the access point determines, according to the resource configuration information, that the home base station initiates a connection Whether the used resource is consistent with the resource allocated by the home base station configuration server, and if not, the access point disconnects the connection of the home base station.
  • the above method may further have the following feature: the resource configuration information returned by the home base station configuration server to the home base station includes a transport layer identifier of the access point, and the transport layer identifier is a coupled identifier of the access point. And the IP address and port number information of the access point, where the home base station initiates a connection to the corresponding access point according to the transport layer identifier.
  • the foregoing method may further have the following feature: the home base station configuration server and the access point periodically perform handshake, and if the home base station configuration server and the access point handshake are unsuccessful within a specified time, the home base station configuration When the server allocates resources for the home base station, the server does not allocate resources related to the access point to the home base station.
  • the access point is a radio network controller or a base station controller or a mobility management entity.
  • the present invention also provides a resource dynamic allocation system, including a home base station and an access point, and further comprising a home base station configuration server, connected to the home base station and an access point through a transmission network, where:
  • the home base station configuration server receives a request for the home base station to apply for a resource, allocates a resource to the home base station, and returns corresponding resource configuration information to the home base station;
  • the home base station initiates a connection to the access point according to the resource configuration information.
  • the above system may further have the following features: When the home base station allocates resources, the allocation is performed according to the load of the access point, and the resources of the access point with the least load are selected and allocated to the home base station.
  • the above system may further have the following feature: the home base station configuration server marks resources as available or unavailable, and when resources are allocated to the home base station, resources marked as unavailable are not allocated, when the home base station and After the access point establishes the connection, the home base station configuration server marks the resource corresponding to the connection as unavailable, and after the home base station releases the connection with the access point, the home base station configuration server will connect the corresponding resource identifier. Is available.
  • the resource configuration information saved by the home base station configuration server includes a transport layer identifier of the access point, where the transport layer identifier is a coupled identifier of the access point, or an access point IP address and port number information.
  • the AP can only configure a smaller number of transmission resources and radio resources than the actual H base station, and achieve the purpose of statistical multiplexing. At the same time, it is not necessary to fix the resources for the connection when the H base station is deployed, and the dynamic automatic allocation method is adopted, which also simplifies the burden of manually configuring the H base station. HCS can also effectively load and share APs, such as disaster recovery. BRIEF abstract
  • FIG. 3 are respectively network deployment diagrams in the UMTS, GSM, and LTE systems of the present invention
  • FIG. 4 is a flowchart of a resource dynamic allocation method according to the present invention
  • FIG. 5 is a flowchart of requesting allocation of resources by an H base station according to the present invention.
  • FIG. 6 is a flowchart of a connection between an H base station of the present invention and an AP;
  • Figure 8 is a flow chart of the handshake between the AP and the HCS. Preferred embodiment of the invention
  • the H base station may be a Nodeb (base station), or an eNodeb (evolved base station) or a BTS (base station ⁇ station) network element
  • the AP refers to an H base station.
  • BSC Base Station Controller
  • UMTS In UMTS, it refers to RNC (Radio Network Controller)
  • MME Mobility Management Entity
  • FIGS 1, 2, and 3 show schematic diagrams of the deployment of H base stations, APs, and HCSs in the UMTS (Universal Mobile Telecommunications System), GSM, and LTE systems, respectively.
  • the deployment method is as follows:
  • the address can be an IP address, or a domain name and an IP address. If it is a domain name and an IP address, you need to configure the domain name and IP address relationship on the DNS server.
  • the HCS address information required by the H base station is pre-configured, and other configuration information is not required;
  • the address information is the domain name or IP address of the HCS.
  • the transport network can use either a wide area network or a private network, depending on the needs of the operator itself.
  • the AP corresponds to the RNC.
  • the AP corresponds to the BSC.
  • the AP corresponds to the MME.
  • the AP Before the H base station is deployed, the AP has previously configured the radio resources, such as the cell and its related configuration, and the transmission resources. After the transmission resource is determined, the relationship between the transmission resource and the radio resource is also determined. Therefore, once the H base station is connected to the designated transport port, the radio resources it uses at the AP have also been determined.
  • the transmission resources on the AP can be represented using a transport layer identifier.
  • the transport layer identifier refers to the identifier that identifies the AP side access point. It includes but is not limited to the following cases.
  • SCTP Stream Control Transmission Protocol
  • UDP User Datagram Protocol
  • TCP Transmission Control Protocol
  • the HCS only needs to be configured to transmit resource information on the AP. For example, you can configure the transport layer identifier.
  • the resource dynamic allocation method of the present invention comprises the following steps:
  • Step 110 Introduce an H base station configuration server (HCS) into the system.
  • HCS H base station configuration server
  • the H base station configuration server has one or several global devices.
  • the HCS includes resource configuration information of the H base station.
  • Step 120 Pre-configure resources required for access by the H base station, including transmission resources, radio resources, such as cell information, on the AP of the H base station (including but not limited to R C ).
  • the transmission resources and the radio resources such as the cell have a corresponding relationship.
  • the resource configuration information saved on the HCS contains transmission resource information of all APs.
  • Step 130 After the H base station starts, apply for resources to the HCS, and the HCS allocates resources for the H base station according to the application, and sends corresponding resource configuration information to the H base station, where the resource configuration information includes information such as which AP the H base station is connected to.
  • the H base station applies for configuration resources to the HCS, and the HCS obtains a resource that is not yet used from the locally managed resources to inform the H base station, including which AP is needed, and what connection is used. HCS and mark the resource as being assigned.
  • the HCS marks the resource as available or unavailable, and is usually marked as unavailable when the resource is occupied, and is marked as available when it is not occupied. When resources are allocated for the H base station, resources marked as unavailable are not allocated.
  • the HCS can allocate according to the busy condition of the AP, that is, according to the load of the AP, and select a relatively idle AP. For example, the resource of the AP with the least load is allocated to the H base station, thereby achieving the purpose of load sharing.
  • Step 140 After receiving the resource notified by the HCS, the H base station initiates a connection to the AP according to the related information in the resource configuration information, and the AP notifies the HCS that the resource is occupied. And the identity (ID) of the H base station occupying the resource; the HCS marks the resource as unavailable.
  • Step 150 When the H base station and the AP disconnect, the AP notifies the HCS that the resource associated with the connection has been released, and the HCS marks the resource as available.
  • the resource is coupled to the HCS as an identifier, and the coupled identifier has a corresponding relationship with the radio resource such as the cell information on the AP.
  • the radio resource such as the cell information on the AP.
  • transport layer identifiers can also be used, such as the IP address and UDP port of the access point, or the IP address and TCP port.
  • FIG. 5 is a flow chart of the H base station requesting resources from the HCS, including the following steps:
  • the H base station sends a domain name resolution request to the domain name server (DNS) to request an IP address of the HCS.
  • DNS domain name server
  • the DNS returns an HCS IP address to the H base station.
  • the above steps 510 and 520 may also be omitted.
  • the H base station sends a resource request to the HCS, requesting to allocate resources, that is, requesting the connected AP information;
  • the HCS checks for idle AP resources, including:
  • the AP According to the load situation of the AP, try to select an AP that is freely available. This requires comprehensive analysis of the capabilities of the AP itself and the load of the H base station that the AP has accessed. For example, the resource of the AP with the least load is allocated to the H base station. Achieve the purpose of load sharing.
  • the HCS selects an appropriate AP resource to allocate to the H base station, and notifies the H base station of the corresponding resource configuration information.
  • the resource configuration information of the H base station must be informed that the transport layer identifier of the AP to be connected, such as the IP address and port number information of the access point, or the coupled identifier of the access point; It is information that the H base station uses the IP address, the port number information, and the cell ID of the H base station as the H base station considers necessary.
  • the HCS marks the resources allocated to the H base station as allocated.
  • FIG. 6 shows that the HCS initiates a connection to the AP, and the AP notifies the HCS, the occupied resources of the H base station.
  • the flow chart includes the following steps:
  • the H base station according to the resource configuration information obtained from the HCS, such as according to the transport layer identifier included therein, the transport layer identifier includes, but is not limited to, an IP address and a port number that the H base station needs to connect, and initiates a transport layer link to the AP;
  • the AP responds to the transport layer connection of the H base station
  • the AP learns the resource information used by the H base station through the connection of the transport layer, and notifies the resource corresponding to the HCS (that is, the resource used by the H base station to establish a connection) to be occupied;
  • the HCS marks the resource as unavailable, and when a new H base station comes to the HCS to declare the resource, the resource is not allocated;
  • H base station works, normal or abnormal release transport layer connection
  • the AP notifies the HCS that the resource corresponding to the connection has been released.
  • the HCS marks the resource of the connection pair as available.
  • a resource arrives at the allocated state (the resource is marked as allocated by the HCS) for a relatively long period of time (such as a predetermined time), it does not enter the used state, that is, the HCS does not receive the AP within the specified time. If the resource is reported to be occupied, the resource is considered to be in an available state again, and the HCS marks the resource as available.
  • the AP may check the verification process of the H base station, and the H base station initiates a transport layer connection to the AP or establishes After the transport layer is connected, the H base station reports its own ID to the AP, and the AP then requests the HCS for the resource information allocated by the H base station ID for the H base station ID, and checks whether the information is consistent. If not, directly disconnect the H base station. .
  • Figure 7 specifically including the following steps:
  • the H base station initiates a transport layer connection request to the AP, where the request carries its own H base station ID number.
  • the AP requests, from the HCS, the resource information allocated by the HCS to the H base station, where the request carries the H base station ID of the H base station. 730.
  • the HCS returns, to the AP, resource configuration information that is allocated to the H base station, where the resource configuration information mainly includes a transport layer identifier.
  • the AP checks whether the resource configuration information used by the H-base station is consistent with the resource configuration information used by the H-base station, that is, whether the resource used by the H-base station to initiate the connection is consistent with the resource allocated by the HCS.
  • the AP accepts the connection request of the H base station; if not, rejects, and interrupts the underlying connection.
  • the AP and the HCS periodically perform a handshake to confirm the state of the AP. If the handshake between the HCS and the AP is unsuccessful within a certain period of time (such as a pre-specified time), the AP is considered to be offline, and the HCS is subsequently accessed by the H base station.
  • the resources associated with the AP are also not allocated to the H base station. As shown in Figure 8, the following steps are included:
  • the HCS periodically sends a handshake to the AP.
  • the AP sends a handshake response to the HCS.
  • the handshake between the AP and the HCS may also be that the AP periodically sends a handshake to the HCS, and the HCS sends a response.
  • the invention also proposes a resource dynamic allocation system, which comprises a home base station, an access point and a home base station configuration server, wherein the three are connected by a transmission network, wherein:
  • the home base station configuration server stores the resource configuration information of the AP on the HCS;
  • the HCS receives the request for the home base station to apply for the resource, allocates resources for the home base station, and returns corresponding resource configuration information to the home base station;
  • the home base station initiates a connection to the AP according to the resource configuration information.
  • the method of the present invention saves AP resources.
  • resources are allocated for all base stations in the network rule, and the present invention dynamically allocates resources only when the base station accesses, and a large number of H base stations.
  • resources are allocated through HCS, which is effectively increased by statistical multiplexing.
  • the resource utilization efficiency of the AP is added; the configuration of the home base station can be simplified, and the burden is effectively carried out between different APs, and even fault tolerance processing.
  • the AP can only configure a smaller number of transmission resources and radio resources than the actual number of H base stations, and achieve the purpose of statistical multiplexing. At the same time, there is no need to fix the resources for the connection when the H base station is deployed, and the dynamic automatic allocation method is used, and the burden of manually configuring the H base station is also reduced. HCS can also effectively load and share APs, such as disaster recovery.

Description

一种奢源动态分配的系统及方法 技术领域
本发明涉及一种对 AP ( Access Point, 接入点）的资源进行动态分配的 系统及方法。 本发明所述方法对 GSM (全球移动通信系统） /WCDMA (宽 带码分多址） I TD-CDMA (时分同步码分多址） /LTE (长期演进） 系统均 可适用。 背景技术
一般配置基站的方法是事先规划系统可能部署的基站， 然后在 AP上为 这些基站配置传输、 无线等参数， 一般的说， 如果需要部署 N个基站， 则 对应地， 也需要在 APC (接入点控制器）上配置 N个传输节点， N个基站 等信息。 这些配置一般在基站准备部署的时候就已经确定。
但是随着 H基站 (femoto基站， 家用基站)概念的引入， 原有的做法不 太适用。 这类基站一般具有个数较多， 覆盖范围小的特点。 并且这类 H基 站和普通的基站的不同， 一般具有以下的特殊之处：
1 ) H基站的产权属于家庭或个人， 个数众多， 一般远大于传统的基站；
2 ) H基站配置参数简单， 基本雷同。 部分参数可固定配置， 部分参数 可以自适应生成， 如通过欧中算法生成。 因此无须路测或者调整；
3 ) H基站不是始终在线的， 而是具有一定的概率接入特性即统计特性， 例如忙时可能开机的 H基站很多， 但是也未必是全部开机。 如果按 ADSL (非对称数字用户环路）的经验数据， 可能是 1: 4的收敛比， 即忙时也只 有 1/4的用户开机。 平时， 例如白天则开机的更少。
在不同的系统中， H基站可能为具备上述特征的 Nodeb(基站） , eNodeb (演进的基站） ， BTS (基站收发信台）等网元。
一般的说， AP需要为接入的基站分配资源， 这些资源包括无线资源， 例如小区、 传输层的接入资源、 SCTP偶联等信息。 这些信息一般被配置即 被占用.，对于 H基站这样不是总是在线的情况是比较浪费的。 另外，这些 H 基站的接入行为也难以预测， 很容易出现部分 AP繁忙， 部分 AP空闲的情 况。
发明内容
本发明要解决的技术问题是提供一种资源动态分配的系统及方法，提高 资源使用效率及解决 AP负荷不均匀的问题。
为了解决上述技术问题， 本发明提供了一种资源动态分配方法， 包含如 下步骤：
在系统中增加家用基站配置服务器，在该家用基站配置服务器上保存接 入点的资源配置信息；
家用基站向所述家用基站配置服务器申请资源；
所述家用基站配置服务器为所述家用基站分配资源，并向所述家用基站 返回对应的资源配置信息；
所述家用基站根据所述资源配置信息， 向接入点发起连接。
进一步地， 上述方法还可具有以下特点， 所述家用基站配置服务器将资 源标记为可用或不可用， 为所述家用基站分配资源时， 不分配标记为不可用 的资源。
进一步地， 上述方法还可具有以下特点， 所述家用基站配置服务器向所 述家用基站返回资源配置信息时，将分配给所述家用基站的资源标记为已分 配， 所述家用基站配置服务器将资源标记为已分配后， 如果在指定时间内未 收到接入点上报该资源已被占用的通知，则家用基站配置服务器将该资源标 记为可用。
进一步地， 上述方法还可具有以下特点， 所述家用基站向接入点发起连 接并建立连接后 ,所述接入点通知所述家用基站配置服务器该连接对应的资 源已被占用， 所述家用基站配置服务器将该连接对应的资源标记为不可用。
进一步地， 上述方法还可具有以下特点， 所述家用基站和接入点建立连 接后释放连接，所述接入点通知所述家用基站配置服务器该连接对应的资源 已被释放， 所述家用基站配置服务器将该连接对应的资源标记为可用。 进一步地，上述方法还可具有以下特点， 所述家用基站配置服务器为所 述家用基站分配资源时，根据接入点的负荷进行分配，选择负荷最少的接入 点的资源分配给所述家用基站。
进一步地，上述方法还可具有以下特点， 所述家用基站向所述接入点发 起连接时，携带所述家用基站的标识信息，所述接入点根据该标识信息向所 述家用基站配置服务器请求为该家用基站分配的资源的资源配置信息，所述 家用基站配置服务器向所述接入点返回所述资源配置信息，所述接入点根据 该资源配置信息判断所述家用基站发起连接时使用的资源是否和所述家用 基站配置服务器分配的资源一致，如果不一致， 所述接入点将所述家用基站 的连接断开。
进一步地，上述方法还可具有以下特点， 所述家用基站配置服务器向所 述家用基站返回的资源配置信息中包含接入点的传输层标识，所述传输层标 识为接入点的偶联标识， 或接入点的 IP地址和端口号信息， 所述家用基站 根据所述传输层标识向对应的接入点发起连接。
进一步地，上述方法还可具有以下特点， 所述家用基站配置服务器和接 入点定时进行握手，如果在指定时间内所述家用基站配置服务器和接入点握 手不成功，则所述家用基站配置服务器在为家用基站分配资源时， 不分配和 该接入点相关的资源给所述家用基站。
进一步地，上述方法还可具有以下特点， 所述接入点为无线网络控制器 或基站控制器或移动性管理实体。
本发明还提出一种资源动态分配系统， 包括家用基站、接入点, 其特征 在于，还包含家用基站配置服务器，通过传输网络和所述家用基站及接入点 相连， 其中：
所述家用基站配置服务器上保存接入点的资源配置信息；
所述家用基站配置服务器接收所述家用基站申请资源的请求，并为所述 家用基站分配资源， 向所述家用基站返回对应的资源配置信息；
所述家用基站根据所述资源配置信息， 向接入点发起连接。
进一步地，上述系统还可具有以下特点， 所述家用基站配置服务器为所 述家用基站分配资源时，根据接入点的负荷进行分配，选择负荷最少的接入 点的资源分配给所述家用基站。
进一步地，上述系统还可具有以下特点， 所述家用基站配置服务器将资 源标记为可用或不可用， 为所述家用基站分配资源时， 不分配标记为不可用 的资源， 当所述家用基站和接入点建立连接后，所述家用基站配置服务器将 该连接对应的资源标记为不可用， 当所述家用基站释放和接入点的连接后， 所述家用基站配置服务器将连接对应的资源标记为可用。
进一步地，上述系统还可具有以下特点， 所述家用基站配置服务器保存 的资源配置信息中包含接入点的传输层标识，所述传输层标识为接入点的偶 联标识， 或接入点的 IP地址和端口号信息。
通过本发明所述方法， AP可以仅仅配置比实际的 H基站数 少的多的 传输资源、 无线资源， 达到统计复用的目的。 同时， 也不需要在 H基站部 署的时候， 即固定为其配置好连接的资源， 采用动态自动分配的方法， 也简 化人工配置 H基站的负担。 HCS还可以有效的对 AP进行负荷分担，容灾等 手段。 附图概述
图 1至图 3分别是本发明 UMTS、 GSM、 LTE系统中网络部署图； 图 4是本发明资源动态分配方法流程图；
图 5是本发明 H基站请求分配资源的流程图；
图 6是本发明 H基站向 AP发起连接的流程图；
图 7是本发明 AP检查 H基站连接资源是否准确的流程图；
图 8是 AP和 HCS进行握手的流程图。 本发明的较佳实施方式
在本发明的实施例中，在不同的系统中， H基站可能为 Nodeb (基站）， 或 eNodeb (演进的基站）或 BTS (基站^ ^信台）等网元， AP指的是为 H 基站提供接入的接入服务器。 在 GSM 中一般指 BSC (基站控制器） ， 在 UMTS 中则指 RNC (无线网络控制器） ， 在 LTE 中则指 MME ( Mobility Management Entity, 移动性管理实体） 。
图 1、 2、 3所示分别为本发明 UMTS (通用移动通信系统） 、 GSM和 LTE系统中 H基站、 AP和 HCS的部署示意图。 部署方法如下：
1 )运营商在系统中部署 HCS， 并为该 HCS.分配地址；
该地址可以为 IP地址， 或域名和 IP地址， 如果为域名和 IP地址， 需 要在 DNS服务器上配置域名和 IP地址关系。
也可以先预先为 HCS分配好地址， 再在指定的地址部署 HCS。
2 ) H基站上预先配置其需要的 HCS地址信息， 除此以外， 不需要其他 的配置信息；
该地址信息为 HCS的域名或 IP地址。
3 ) HCS和 AP之间使用传输网络互联。
该传输网絡可以使用广域网， 也可以使用私有网络， 这个取决于运营商 本身的需求。
在 UMTS系统中， 该 AP对应于 RNC， 在 GSM系统中， 该 AP对应于 BSC, 在 LTE系统中， 该 AP对应于 MME。
4 ) AP在 H基站部署之前， 已经将其需要使用无线资源， 例如小区及 其相关配置等， 以及传输资源等预先进行配置。 通常传输资源确定后， 则传 输资源和无线资源的关系也确定了。 因此 H基站一旦连接到指定的传输端 口， 则其在 AP使用的无线资源也已经确定。 AP上的传输资源可以使用传 输层标识来表示。 传输层标识指的是标识 AP侧接入点的标识。 它包括但是 不限于以下的情况， 在 SCTP (流控制传输协议）连接的情况下， 指的是 AP 侧的偶联标识； 如果采用 UDP (用户数据报协议）连接则指的是 AP的 IP 地址， 以及对应的 UDP端口； 如果采用的是 TCP (传输控制协议）连接则 指的 AP的 IP地址， 以及对应的 TCP端口。 5 )在 HCS上事先配置在 AP已经分配好的资源， 由于通常传输资源和 无线资源互相关联， 确定传输资源后就能确定对应的无线资源， 所以 HCS 上只需要配置在 AP上传输资源信息即可， 例如配置传输层标识即可。
本发明资源动态分配方法包含如下步骤：
步骤 110， 在系统中引入 H基站配置服务器（H基站 Configuration Server, 简称 HCS ) 。
其中， 该 H基站配置服务器全局有一个或者几个。
HCS上包含 H基站的资源配置信息。
步骤 120, 在 H基站的 AP (包括但是不限于 R C )上预先配置 H基站 接入后需要的资源， 包括传输资源， 无线资源如小区信息等。 一般传输资源 和小区等无线资源具有——对应关系。 在 HCS上保存的资源配置信息包含 所有 AP的传输资源信息。
步骤 130, H基站启动以后向 HCS申请资源， HCS根据该申请， 为 H 基站分配资源，发送对应的资源配置信息至 H基站，资源配置信息中包括 H 基站连接哪个 AP等信息。
H基站向 HCS申请配置资源， HCS从本地管理的资源中， 获得一个现 在尚未被使用的资源告知 H基站，包括需要哪个 AP,采用什么连接等信息。 HCS并且标记该资源为被分配。
其中， HCS将资源标记为可用或不可用， 通常资源被占用时标记为不 可用， 未被占用时标记为可用。 为 H基站分配资源时， 不分配标记为不可 用的资源。
如果有必要， HCS可以根据 AP的繁忙情况， 即根据 AP的负荷进行分 配，选择一个较为空闲的 AP， 如选择负荷最少的 AP的资源分配给 H基站， 从而达到负荷分担的目的。 步骤 140, H基站获得 HCS告知的资源后， 即收到资源配置信息后，根 据资源配置信息中的相关信息， 向 AP发起连接， AP通知 HCS该资源被占 用， 及占用该资源的 H基站的标识（ID ) ; HCS标记该资源为不可用。 步骤 150， H基站和 AP中断连接时， AP通知 HCS,和该连接关联的资 源已经被释放， HCS将此资源标记为可用。
一般的说， 该资源在 HCS上采用偶联作为标识即可， 该偶联标识在 AP 上和小区信息等无线资源具有对应关系。 当然也可以用其他的传输层标识， 如接入点的 IP地址和 UDP端口， 或 IP地址和 TCP端口等。
图 5是 H基站向 HCS申请资源的流程图， 包含如下步骤：
510, H基站向域名服务器（DNS )发送域名解析请求， 请求 HCS的 IP 地址；
520, DNS向 H基站返回 HCS的 IP地址；
当 H基站上配置 HCS的 IP地址时， 上述步骤 510， 520也可以省略。
530, H基站向 HCS发起资源申请， 请求分配资源， 即请求连接的 AP 信息；
540, HCS检查空闲的 AP资源， 主要包括:
查找有没有可用的 AP资源；
根据 AP的负荷情况，尽量选择一个空闲可用的 AP,这需要综合 AP本 身的能力， AP已经接入的 H基站负荷等情况进行综合判断； 如选择负荷最 少的 AP的资源分配给 H基站， 从而达到负荷分担的目的。
550， HCS选择了合适的 AP资源分配给 H基站， 并将对应的资源配置 信息告知 H基站。 其中必须告知 H基站的资源配置信息是需要连接的 AP 的传输层标识， 如接入点的 IP地址和端口号信息， 或接入点的偶联标识； 可选告知的 H基站的资源配置信息是 H基站本端使用 IP地址，端口号信息， H基站的小区 ID等 H基站认为必须的信息。 同时 HCS将分配给 H基站的 资源标记为已分配。
图 6所示为 HCS向 AP发起连接， AP通知 HCS, H基站的占用资源的 流程图， 包括以下步骤：
610, H基站根据从 HCS获取的资源配置信息， 如根据其中包含的传输 层标识， 该传输层标识包括但不限于 H基站需要连接的 IP地址和端口号， 向 AP发起传输层链接；
620, AP响应 H基站的传输层连接；
630, AP通过传输层的连接获知 H基站使用的资源信息， 并告知 HCS 对应的资源 （即 H基站建立连接使用的资源） 已经被占用；
640, HCS将此资源标记为不可用， 以后有新的 H基站来 HCS申清资 源的时候， 该资源不会被分配；
650, H基站工作完毕， 正常或者异常释放传输层连接；
660, AP通知 HCS， 该连接对应的资源已经被释放；
670, HCS将该连接对的资源标记为可用。
进一步地， 如果一个资源到达被分配状态后 （该资源被 HCS标记为已 分配）的相当长时间内（比如预先指定的时间）也没有进入被使用状态， 即 HCS在指定时间内未收到 AP上报该资源被占用，则认为该资源再次进入可 用状态， HCS将该资源标记为可用。
为了防止 HCS上分配给 H基站的资源，和 H基站实际使用的资源不一 致， 例如连接到了错误的 AP, 还可以增加 AP对 H基站的校验过程， H基 站向 AP发起传输层连接时或建立传输层连接后， H基站向 AP上报本身的 ID, AP再通过该 ID向 HCS索要其为该 H基站 ID分配的资源信息， 并查 看是否一致, 如果不一致， 则直接将 H基站的连接断开。 可参考图 7, 具体 包含如下步骤：
710, H基站向 AP发起传输层连接请求， 请求中携带其自身的 H基站 ID号；
720, AP向 HCS请求 HCS为该 H基站分配的资源信息，请求中携带该 H基站的 H基站 ID; 730, HCS向 AP返回给 H基站分配的资源配置信息， 该资源配置信息 中主要包含传输层标识；
740, AP检查该资源配置信息和 H基站发起的连接时使用的资源配置 信息是否一致， 即检查 H基站发起连接时使用的资源是否和 HCS分配的资 源一致；
750, 如果一致， 则 AP接受 H基站的连接请求； 如果不一致， 则拒绝， 并且中断底层连接。
进一步地， AP和 HCS定时进行握手确认 AP的状态， 如果在一段时间 内（如预先指定的时间内） HCS和 AP握手不成功， 则认为该 AP已经离线， 后续在 H基站接入时， HCS也不会分配和该 AP相关的资源给 H基站。 如 图 8所示， 包含如下步骤：
810, HCS定时向 AP发送握手；
820, AP向 HCS发送握手响应。
AP和 HCS的握手也可以是 AP定时向 HCS发送握手， HCS发送响应。
本发明还提出一种资源动态分配系统， 包括家用基站、接入点和家用基 站配置服务器， 三者通过传输网络相连， 其中：
家用基站配置服务器 HCS上保存 AP的资源配置信息；
HCS接收家用基站申请资源的请求， 并为家用基站分配资源， 向家用 基站返回对应的资源配置信息；
家用基站根据所述资源配置信息， 向 AP发起连接。
本发明所述方法， 与现有技术相比， 节省了 AP资源， 现有技术中在网 规时要为所有基站配置资源， 而本发明只在基站接入时动态配置资源，在 H 基站大量随机接入的时候， 通过 HCS来分配资源， 有效的通过统计复用增 加了 AP的资源使用效率； 可以简化对家用基站的配置， 并且在不同的 AP 之间有效的进行负担， 甚至容错处理。
工业实用性
通过本发明所述方法， AP可以仅仅配置比实际的 H基站数目少的多的 传输资源、 无线资源， 达到统计复用的目的。 同时， 也不需要在 H基站部 署的时候， 即固定为其配置好连接的资源， 釆用动态自动分配的方法， 也筒 化人工配置 H基站的负担。 HCS还可以有效的对 AP进行负荷分担，容灾等 手段。

Claims

权 利 要 求 书
1、 一种资源动态分配方法， 其特征在于， 包含如下步驟：
在系统中增加家用基站配置服务器，在该家用基站配置服务器上保存接 入点的资源配置信息；
家用基站向所述家用基站配置服务器申请资源；
所述家用基站配置服务器为所述家用基站分配资源，并向所述家用基站 返回对应的资源配置信息；
所述家用基站根据所述资源配置信息 , 向接入点发起连接。
1、 如权利要求 1所述的方法， 其特征在于， 所述家用基站配置服务 器将资源标记为可用或不可用， 为所述家用基站分配资源时， 不分配标记为 不可用的资源。
3、 如权利要求 1或 2所述的方法， 其特征在于， 所述家用基站配置 服务器向所述家用基站返回资源配置信息时，将分配给所述家用基站的资源 标记为已分配，所述家用基站配置服务器将资源标记为已分配后，如果在指 定时间内未收到接入点上报该资源已被占用的通知，则家用基站配置服务器 将该资源标记为可用。
4、 如权利要求 2所述的方法， 其特征在于， 所述家用基站向接入点 发起连接并建立连接后，所述接入点通知所述家用基站配置服务器该连接对 应的资源已被占用，所述家用基站配置服务器将该连接对应的资源标记为不 可用。
5、 如权利要求 2所述的方法， 其特征在于， 所述家用基站和接入点 建立连接后释放连接，所述接入点通知所述家用基站配置服务器该连接对应 的资源已被释放， 所述家用基站配置服务器将该连接对应的资源标记为可 用。
6、 如权利要求 1或 4或 5所述的方法， 其特征在于， 所述家用基站 配置服务器为所述家用基站分配资源时，根据接入点的负荷进行分配，选择 负荷最少的接入点的资源分配给所述家用基站。
7、 如权利要求 1所述的方法， 其特征在于， 所述家用基站向所述接 入点发起连接时，携带所述家用基站的标识信息， 所述接入点根据该标识信 息向所述家用基站配置服务器请求为该家用基站分配的资源的资源配置信 息，所述家用基站配置服务器向所述接入点返回所述资源配置信息，所述接 入点根据该资源配置信息判断所述家用基站发起连接时使用的资源是否和 所述家用基站配置服务器分配的资源一致，如果不一致，所述接入点将所述 家用基站的连接断开。
8、 如权利要求 1所述的方法， 其特征在于， 所述家用基站配置服务 器向所述家用基站返回的资源配置信息中包含接入点的传输层标识，所述传 输层标识为接入点的偶联标识， 或接入点的 IP地址和端口号信息， 所述家 用基站根据所述传输层标识向对应的接入点发起连接。
9、 如权利要求 1所述的方法， 其特征在于， 所述家用基站配置服务 器和接入点定时进行握手，如果在指定时间内所述家用基站配置服务器和接 入点握手不成功， 则所述家用基站配置服务器在为家用基站分配资源时， 不 分配和该接入点相关的资源给所述家用基站。
10、 如权利要求 1所述的方法， 其特征在于， 所述接入点为无线网络 控制器或基站控制器或移动性管理实体。
11、 一种资源动态分配系统， 包括家用基站、 接入点， 其特征在于， 还包含家用基站配置服务器， 通过传输网络和所述家用基站及接入点相连， 其中：
所述家用基站配置服务器上保存接入点的资源配置信息；
所述家用基站配置服务器接收所述家用基站申请资源的请求，并为所述 家用基站分配资源， 向所述家用基站返回对应的资源配置信息；
所述家用基站根据所述资源配置信息， 向接入点发起连接。
12、 如权利要求 12所述的系统，其特征在于，所述家用基站配置服务 器为所述家用基站分配资源时，根据接入点的负荷进行分配，逸择负荷最少 的接入点的资源分配给所述家用基站。
13、 如权利要求 12所述的系统，其特征在于，所述家用基站配置服务 器将资源标记为可用或不可用， 为所述家用基站分配资源时， 不分配标记为 不可用的资源， 当所述家用基站和接入点建立连接后， 所述家用基站配置服 务器将该连接对应的资源标记为不可用，当所述家用基站释放和接入点的连 接后， 所述家用基站配置服务器将连接对应的资源标记为可用。
14、 如权利要求 12所的系统，其特征在于， 所述家用基站配置服务器 保存的资源配置信息中包含接入点的传输层标识，所述传输层标识为接入点 的偶联标识， 或接入点的 IP地址和端口号信息， 所述家用基站根据所述传 输层标识向对应的接入点发起连接。
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