WO2008148347A1 - Procédé de gestion de ressources, dispositif de support et dispositif de commande de support - Google Patents

Procédé de gestion de ressources, dispositif de support et dispositif de commande de support Download PDF

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Publication number
WO2008148347A1
WO2008148347A1 PCT/CN2008/071174 CN2008071174W WO2008148347A1 WO 2008148347 A1 WO2008148347 A1 WO 2008148347A1 CN 2008071174 W CN2008071174 W CN 2008071174W WO 2008148347 A1 WO2008148347 A1 WO 2008148347A1
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Prior art keywords
resource
abstract
specific
reservation
specific resource
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PCT/CN2008/071174
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English (en)
French (fr)
Inventor
Yangbo Lin
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Huawei Technologies Co., Ltd.
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Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP08757585A priority Critical patent/EP2146467A4/en
Publication of WO2008148347A1 publication Critical patent/WO2008148347A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/82Miscellaneous aspects
    • H04L47/822Collecting or measuring resource availability data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation

Definitions

  • the present invention relates to the field of communications, and in particular, to a resource management method, a bearer device, and a bearer control device in a framework in which a service is separated from a bearer. Background technique
  • the Media Gateway Controller (MGC) and the Media Gateway (MG) are the two key components of the packet network under the service and bearer separation architecture.
  • the MGC is responsible for the service control function, and the MG is responsible for the media bearer function, thereby separating the service control plane and the media bearer plane.
  • the media gateway control protocol is the main protocol for communication between the MGC and the MG.
  • the gateway control protocol Gateway Control Protocol, referred to as "H.248/MeGaCo”
  • Media Gateway Control Protocol Media Gateway Control Protocol
  • the H.248/MeGaCo protocol is developed on the basis of the MGCP protocol. Taking the H.248 protocol as an example, the MG carries the bearer for the service through the resources on it, and these resources are abstractly represented as terminals ( Termination). The combination (ie, connection) between terminals is abstracted as a context (Context).
  • Command types include Add, Modify, Subtract, Move, AuditValue, AuditCapabilities, Notify, and ServiceChange.
  • Command parameters also known as descriptors (Descriptor), are classified as Property, Signal, Event, Statistic, and so on. For convenience, the parameters with business relevance are logically aggregated into packages.
  • H.248 when the MGC needs to instruct the MG to reserve and/or allocate resources for a certain service, it is required to select corresponding resources for the item-by-item characteristics of the service and set corresponding resource parameters, and indicate one by one according to the selected result.
  • the MG reserves and/or allocates corresponding resources and settings for the resources, and the series of resources reserved and/or allocated on the MG and the settings of the resources are combined into the service service. Business.
  • a typical scenario is as follows: Reserving and/or allocating terminal resources for a listener user in a conference includes: setting the mode of the terminal uplink to receive only, the type is audio, using some predetermined audio codec algorithm and Packing time and so on.
  • the MGC needs to send these indications to the MG one by one for the reservation and/or allocation of specific resources and settings for that resource.
  • the embodiments of the present invention provide a resource management method, a bearer device, and a bearer control device, so that the bearer control device can more easily and efficiently instruct the bearer device to reserve and/or allocate resources, and reduce communication and performance overhead.
  • an embodiment of the present invention provides a resource management method, including the following steps:
  • the bearer device receives the message indicating the reservation and/or the allocation of the abstract resource from the bearer control device, and searches for the corresponding resource to be reserved and/or allocated according to the corresponding relationship between the abstract resource and the specific resource saved in the bearer device.
  • Each specific resource performs a reservation and/or allocation operation on the specific resources; wherein each abstract resource corresponds to at least one specific resource.
  • An embodiment of the present invention further provides a bearer device, including:
  • a storage unit configured to store a correspondence between an abstract resource and a specific resource, where each abstract resource corresponds to at least one specific resource
  • a receiving unit configured to receive, from the bearer control device, a message indicating reservation and/or allocation of an abstract resource
  • a searching unit configured to search, in a correspondence relationship saved by the storage unit, each specific resource corresponding to an abstract resource to be reserved and/or allocated by the message;
  • An operation unit configured to perform a reservation and/or an allocation operation on a specific resource found by the searching unit.
  • An embodiment of the present invention further provides a bearer control device, including:
  • a generating unit configured to generate a message indicating reservation and/or allocation of an abstract resource according to an abstract resource that needs to be reserved and/or allocated by the device;
  • a sending unit configured to send, to the bearer device, a message indicating that the reserved resource is reserved and/or allocated.
  • each abstract resource may correspond to one or more specific resources.
  • the bearer control device needs to instruct the bearer device to reserve and/or allocate resources, send the device to the bearer device. And a message indicating that the abstract resource is reserved and/or allocated, and the abstract resource indicated in the message corresponds to a specific resource that is required to be reserved and/or allocated by the bearer device, and the bearer device may reserve and/or allocate corresponding to the message according to the message.
  • Specific resources Therefore, when there is more than one specific resource that needs to be reserved and/or allocated by the bearer device, the bearer control device may replace multiple indication reservations and/or allocations by sending a message indicating reservation and/or allocation of abstract resources.
  • the resource message completing the resource reservation and/or allocation indication, enables the bearer control device to more easily and efficiently instruct the bearer device to reserve and/or allocate resources.
  • FIG. 1 is a schematic diagram of a networking structure of an MGC and an MG in the prior art
  • FIG. 2 is a flow chart of a resource management method according to a first embodiment of the present invention
  • Figure 3 is a block diagram showing the structure of a carrier device and a bearer control device according to third and fourth embodiments of the present invention
  • Figure 4 is a block diagram showing an embodiment of the lookup unit of Figure 3. DETAILED DESCRIPTION OF THE EMBODIMENTS In order to make the objects, technical solutions, and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below.
  • a and / or B are used to mean “A” or “B” or “A and B", wherein A and B each refer to a thing or action.
  • “reserved and/or assigned” means “reserved” or “allocated” or “reserved and assigned”.
  • “A and / or B” is a commonly used expression in the art, and is used in order to enable a person of ordinary skill in the art to better understand the technical solution of the present invention.
  • a first embodiment of the present invention relates to a resource management method.
  • the corresponding relationship between the abstract resource and the specific resource is saved in the bearer device, and each abstract resource corresponds to at least one specific resource.
  • the bearer device receives a message from the bearer control device indicating that the reserved resource is reserved and/or allocated, and searches for the specific resource corresponding to the abstract resource to be reserved and/or allocated in the saved correspondence.
  • the resource performs reservation and/or allocation operations. Therefore, when there is more than one specific resource that needs to be reserved and/or allocated by the bearer device, a message indicating reservation and/or allocation of the abstract resource may be replaced by a message indicating the reservation and/or allocation of the specific resource.
  • the resource reservation and/or allocation indication to the bearer device is completed, so that the bearer control device can instruct the bearer device to reserve and/or allocate resources more simply and efficiently.
  • the predefined correspondence will be saved in the MG.
  • the correspondence may include information such as an abstract resource name, a resource mapping description, and a flow.
  • the "resource mapping description” is used to describe which specific resources are mapped to the abstract resource, and the management behavior description of the specific resource;
  • the "process” is used to describe the rules and the rules to be followed when using the abstract resource, the specific resource, and the management behavior. Process, such as the order in which specific resources are reserved.
  • step 210 when the MGC needs to instruct the MG to perform resource reservation and/or allocation for the terminal, the stream, and the like, the MGC may determine a corresponding abstract resource according to the requirement, and send an indication reservation and/or to the MG according to the determined abstract resource. Or assign a message to an abstract resource;
  • the message indicating the reservation and/or allocation of the abstract resource may be a command request message including abstract resource information.
  • a property parameter needs to be defined to describe an abstract resource that needs to be reserved and/or allocated by the MG, and the attribute parameter can be defined in an existing package or a new package.
  • the attribute is named "Resource Description ("RD")", and the attribute is defined as "Abstract Resource Management” (ARM) "Package” in the new package. This attribute parameter is applied to the stream on the terminal or terminal.
  • the RD attribute parameter includes the name of the abstract resource that needs to be reserved and/or allocated to uniquely indicate an abstract resource that has been defined.
  • the type of the attribute parameter can be a list of strings (String), and each string instance (Instance) or element (Element) in the list includes the name of an abstract resource.
  • the MGC may instruct the MG to perform reservation and/or allocation of corresponding specific resources by setting an RD attribute parameter.
  • the MGC can carry in the command request sent to the MG.
  • the RD attribute parameter sets the name of the determined abstract resource in the RD attribute parameter.
  • the MG when receiving the command request message from the MGC, the MG obtains the name of the abstract resource from the RD attribute parameter, and searches for the various corresponding to the abstract resource in the saved correspondence according to the name of the abstract resource.
  • Specific resources that is, look up the "resource mapping description” and “flow” corresponding to the abstract resource, according to the "resource mapping description”, reserve and/or allocate operations for the specific resources described, and describe the management behavior according to the management behavior The corresponding specific resources are used for management behavior. This reservation and/or assignment operation needs to conform to the predetermined rules and/or processes described by the "process".
  • step 230 the MG sends a corresponding command response to the MGC. If the resource reservation and/or allocation is successful, the MG returns a normal response to the MGC; if the resource reservation and/or allocation fails, an error response is returned to the MGC, and the corresponding error code and/or error is included in the error response. Descriptive text, such as "510 Insufficient Resource", indicates insufficient resources.
  • the MGC may also cancel the reserved and/or allocated resources by using the RD attribute parameter that is subsequently sent to the MG, for example: if the value of the subsequently delivered RD attribute parameter is not included When the name of an abstract resource is deleted, the abstract resource is unreserved and/or allocated. If the value of the subsequent RD attribute parameter is null, all abstract resources are unreserved and/or allocated.
  • a terminal resource allocated for a listener user in a conference is defined as an abstract resource, and is named as "ListOnly Participant", the abstract resource and the specific resource.
  • the corresponding relationship includes the following:
  • the abstract resource needs to be allocated when the terminal is added to the context, and it is necessary to ensure that the terminal associated with the terminal is a receive mode and an audio type during the period of the terminal.
  • the correspondence containing the above definition is pre-stored in the MG. If the MGC attempts to make settings for the terminal that do not meet these restrictions, the MG can return a corresponding error response.
  • the MGC When the MG needs to reserve and/or allocate terminal resources for a certain audience user, the MGC sends a command request to the MG, carries the RD attribute of the ARM package in the command request message, and sets the value of the RD attribute to "listen only to participate. After receiving the command request, the MG determines the name of the abstract resource that needs to be reserved and/or allocated from the RD attribute, and finds the corresponding relationship according to the name "listen only to the participant", and finds the corresponding "resource mapping description”. "and" process, the MG reserves and/or allocates only the audio stream for the terminal according to the found content.
  • the MGC needs to ensure that the part of the resource operation indication that is involved in the subsequent relationship is related to the content of the corresponding relationship. Keep consistency, otherwise the MG can return an error response.
  • the MG may be instructed to reserve and/or allocate multiple specific resources by sending a message indicating that the resource is reserved and/or allocated, so that the MG is needed.
  • the specific resources reserved and/or allocated and the setting of the specific resources are more than one item, the number of MGC sending indication reservation and/or resource allocation messages may be reduced, so that the MGC can indicate the MG reservation and the MGC more easily and efficiently. / or allocate resources.
  • the second embodiment of the present invention also relates to a resource management method, which is substantially the same as the first embodiment, except that in the first embodiment, the MGC sends a message to the MG indicating that the reserved resource is reserved and/or allocated.
  • the RD attribute parameter of the command request message includes only the name of the abstract resource that needs to be reserved and/or allocated.
  • the MG can search for each specific resource corresponding to the abstract resource according to the name, and perform resource pre-requisition.
  • the RD attribute parameter of the command request message sent by the MGC to the MG includes not only the name of the abstract resource that needs to be reserved and/or allocated, but also the supplement of the abstract resource. Information (called extra data).
  • the additional data is used to supplement the basic definition of the abstract resource, that is, to supplement the specific resource corresponding to the abstract resource in the predefined correspondence, including: at least one of the specific resources corresponding to the abstract resource
  • the specific resource further sets parameters; or, based on the predefined correspondence, the specific resource corresponding to the abstract resource is added or the specific resource corresponding to the abstract resource is reduced, or the parameter of one specific resource is modified. For example, according to the above case, when an abstract resource named "listener only" is included in the RD attribute, the extra data can be set to the encoding type of a specific audio resource.
  • the type of the RD attribute parameter may also be a list of a string (String), and each string instance (Instance) or element (Element) in the list includes the name of the abstract resource and additional data, for example, Use the format "name: extra data”.
  • the MG may perform corresponding management on the basis of the resource set formed by the searched specific resources according to the supplementary information, and each of the corresponding managed resource sets.
  • Specific resources perform reservation and/or allocation operations.
  • the MG needs to reserve and/or allocate audio resources and set the specified encoding type.
  • the defined abstract resources can be further refined, added, deleted, and partially modified based on the abstract resources that are uniquely indicated to be reserved and/or allocated, so that the MGC resources are reserved and/or The assignment instructions are more precise and more flexible to apply.
  • the third embodiment of the present invention relates to a bearer device, which may be an MG 1 , as shown in FIG. 3 , and includes:
  • the storage unit 10 is configured to store a correspondence between the abstract resource and the specific resource, where each abstract resource corresponds to at least one specific resource, and the receiving unit 12 is configured to receive a message from the bearer control device indicating that the reservation and/or the abstract resource is allocated;
  • the searching unit 14 is configured to search for a specific resource corresponding to the abstract resource to be reserved and/or allocated by the message in the corresponding relationship saved by the storage unit 10, and the operation unit 16 is configured to search for the specific component of the search unit 14
  • the resource performs reservation and/or allocation operations.
  • the pre-defined and stored correspondence between the abstract resource and the specific resource enables the bearer device to reserve and/or allocate multiple specific resources by sending a message indicating the reservation and/or allocation of the abstract resource, thereby
  • the number of the bearer control device sending the indication reservation and/or the resource allocation message may be reduced, so that the bearer can be indicated more conveniently and efficiently.
  • the device reserves and/or allocates resources.
  • the corresponding relationship between the abstract resource and the specific resource includes the name of the specific resource corresponding to the abstract resource, optionally including a description of the management behavior of the specific resource, and one or any combination of the following: using the abstract resource.
  • the operation unit performs a reservation and/or allocation operation on the specific resource according to the content included in the correspondence.
  • the message indicating the reservation and/or allocation of the abstract resource is: a message carrying an attribute (referred to as an RD attribute) indicating an abstract resource to be reserved and/or allocated; as shown in FIG. 4, in one embodiment,
  • the searching unit 14 may include the following subunits: an abstract resource obtaining subunit 140, configured to obtain an abstract resource to be reserved and/or allocated by the RD attribute carried in the message received by the receiving unit 12;
  • the sub-unit 142 is configured to search, in the correspondence, each specific resource corresponding to the abstract resource obtained by the abstract resource acquiring unit.
  • the RD attribute includes the name of the abstract resource, and optionally includes supplemental information to the abstract resource.
  • the bearer device may further include: a supplement setting unit 17 configured to use the supplementary information in the RD attribute, One of the following managements or any combination thereof is performed on the basis of the resource set formed by each specific resource obtained by the search unit 14:
  • the operation unit 16 performs a reservation and/or allocation operation on each specific resource in the resource set managed by the supplemental setting unit 17.
  • the temporary management behavior, modification, and resource addition and deletion of one or more specific resources corresponding to the abstract resource may be performed on the basis of the pre-stored correspondence, so that the resource reservation of the bearer control device can be more accurately satisfied and/or Or allocate requirements to be more flexible and accurate.
  • the bearer device 1 may further include: a response unit 18, configured to return a normal response to the bearer control device 2 when the operation unit 16 performs a reservation and/or assignment operation succeeding; performing a reservation and/or at the operating unit 16 Or when the allocation operation fails, an error response is returned to the bearer control device 2, and the error response includes an error code and/or an error description text.
  • a response unit 18, configured to return a normal response to the bearer control device 2 when the operation unit 16 performs a reservation and/or assignment operation succeeding; performing a reservation and/or at the operating unit 16 Or when the allocation operation fails, an error response is returned to the bearer control device 2, and the error response includes an error code and/or an error description text.
  • the fourth embodiment of the present invention relates to a bearer control device.
  • the bearer control device 2 can be an MGC. As shown in FIG. 3, the method includes:
  • the generating unit 20 is configured to generate a message indicating that the reserved resource is reserved and/or allocated according to the resource reserved and/or allocated by the carrying device; the sending unit 22, the message for reserving and/or allocating the abstract resource Sent to the bearer device.
  • the message indicating the reservation and/or allocation of the abstract resource is: a message carrying an attribute (referred to as an RD attribute) indicating an abstract resource to be reserved and/or allocated.
  • the RD attribute includes the name of the abstract resource, and optionally includes supplemental information to the abstract resource.
  • the corresponding relationship between the abstract resource and the specific resource is saved in the bearer device, and each abstract resource may correspond to one or more specific resources, and the bearer control device 2 needs to indicate the bearer device.
  • the bearer device 1 is sent a message indicating the reservation and/or the allocation of the abstract resource, and the abstract resource indicated in the message corresponds to the specific resource that needs to be reserved by the bearer device, and the bearer device 1
  • the corresponding specific resource may be reserved and/or allocated according to the message.
  • the bearer control device 2 can replace the multiple indication reservations and/or by sending a message indicating reservation and/or allocation of abstract resources.
  • the message of the specific resource is allocated, and the resource reservation and/or allocation indication is completed, so that the bearer control device 2 can instruct the bearer device 1 to reserve and/or allocate resources more conveniently and efficiently.
  • An attribute indicating an abstract resource to be reserved and/or allocated is added to an existing command request message to form a message indicating reservation and/or allocation of an abstract resource, which is sent to the bearer device 1.
  • an existing protocol is simply extended, it is easier and more efficient to instruct the bearer device to reserve and/or allocate resources, which is convenient to implement.
  • the attribute indicating the abstract resource to be reserved and/or allocated may include the name of the abstract resource, supplementary information to the abstract resource, and the like. Therefore, not only can the abstract resource that needs to be reserved and/or allocated be uniquely indicated, but also the defined abstract resource can be further refined, added, deleted, and partially modified, so that the resource reservation and/or allocation indication of the bearer control device is further Precise and more flexible to apply.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Description

资源管理方法、 承载设备及承载控制设备 技术领域
本发明涉及通信领域, 特别涉及业务与承载相分离的构架中的资源管理方 法、 承载设备及承载控制设备。 背景技术
媒体网关控制器 (Media Gateway Controller, 简称 "MGC" ) 和媒体网关 ( Media Gateway, 简称 "MG" )是业务与承载分离架构下的分组网络的两个关 键构件。 其中, MGC负责业务控制功能, MG负责媒体承载功能, 藉此实现业 务控制平面和媒体承载平面的分离。
媒体网关控制协议是 MGC和 MG之间通信的主要协议,目前应用较为广泛 的有网关控制协议(Gateway Control Protocol, 简称 "H.248/MeGaCo" )和媒体 网关控制协议(Media Gateway Control Protocol, 简称 "MGCP" )两种协议, 如 图 1所示。
H.248/MeGaCo协议是在 MGCP协议的基础上发展而来, 以 H.248协议为 例, MG对于业务的承载是通过其上的资源来实现的, 而这些资源被抽象地表示 为终端( Termination )。终端之间的组合(即连接)被抽象表示为上下文( Context )。
基于上述抽象连接模型, 业务与承载之间的交互实际上就是对终端和上下 文的操作。这种操作通过 MGC和 MG之间的命令( Command )的请求( Request ) 和响应 (Reply ) 来完成。 命令类型包括增加 (Add )、 修改(Modify ), 删减 ( Subtract )、移动( Move )、审计值( AuditValue )、审计能力( AuditCapabilities )、 通报( Notify )、服务改变( ServiceChange )。命令参数,也称为描述符( Descriptor ), 被分类为属性 ( Property ), 信号(Signal ), 事件 ( Event ), 统计 ( Statistic )等。 为了方便, 将具有业务相关性的参数从逻辑上聚合为包( Package )。
根据 H.248的定义, 当 MGC需要指示 MG为某种业务预留和 /或分配资源 时, 需要针对该业务的逐项特征选择相应的资源并设置相应的资源参数, 根据 选择的结果逐一指示 MG预留和 /或分配相应的资源以及对该资源的设置, MG 上预留和 /或分配的这一系列资源以及对该资源的设置将组合起来为该业务服 务。
一个典型的场景如下: 为某个会议中的一个听众用户预留和 /或分配终端资 源包括: 设置该终端上流的模式为只收、 类型为音频, 釆用某种预定的音频编 解码算法和打包时长等等。 MGC需要逐个向 MG发送这些对具体资源以及对该 资源的设置进行预留和 /或分配的指示。
然而, 本发明人在实施本发明时发现, 对于指定的某种业务而言, 哪些参 数需要设置以及各设为何值通常都是相当稳定的, 然而每次使用该业务时 MGC 仍旧必须逐一向 MG进行指示, 从而产生了不必要的通信和性能开销。 发明内容
本发明实施例提供一种资源管理方法、 承载设备及承载控制设备, 使得承 载控制设备可以更简便和高效地指示承载设备预留和 /或分配资源, 减少通信和 性能开销。
为解决上述技术问题, 本发明的实施例提供了一种资源管理方法, 包括以 下步骤:
承载设备接收来自承载控制设备的指示预留和 /或分配抽象资源的消息, 根 据承载设备中保存的抽象资源与具体资源的对应关系, 查找该消息要预留和 /或 分配的抽象资源对应的各具体资源, 对这些具体资源执行预留和 /或分配操作; 其中, 每个抽象资源对应至少一个具体资源。
本发明的实施例还提供了一种承载设备, 包括:
存储单元, 用于保存抽象资源与具体资源的对应关系, 每个抽象资源对应 至少一个具体资源;
接收单元, 用于接收来自承载控制设备的指示预留和 /或分配抽象资源的消 息;
查找单元, 用于在存储单元保存的对应关系中查找消息要预留和 /或分配的 抽象资源对应的各具体资源;
操作单元, 用于对查找单元查找到的具体资源执行预留和 /或分配操作。 本发明的实施例还提供了一种承载控制设备, 包括:
生成单元, 用于根据需要承载设备预留和 /或分配的抽象资源, 生成指示预 留和 /或分配抽象资源的消息; 发送单元, 用于将指示预留和 /或分配抽象资源的消息发送给承载设备。 本发明实施例与现有技术相比, 主要区别及其效果在于:
预先在承载设备中保存抽象资源与具体资源的对应关系, 每个抽象资源可 对应一个或多个具体资源, 承载控制设备在需要指示承载设备预留和 /或分配资 源时, 向该承载设备发送指示预留和 /或分配抽象资源的消息, 该消息中指示的 抽象资源与实际需要承载设备预留和 /或分配的具体资源相对应, 承载设备可以 根据该消息预留和 /或分配对应的具体资源。 从而在需要承载设备预留和 /或分配 的具体资源不只一项时, 承载控制设备可以通过发送一条指示预留和 /或分配抽 象资源的消息, 来替代多条指示预留和 /或分配具体资源的消息, 完成资源预留 和 /或分配指示, 使得承载控制设备可以更简便和高效地指示承载设备预留和 /或 分配资源。 附图说明
图 1是现有技术中 MGC和 MG的组网结构示意图;
图 2是根据本发明第一实施例的资源管理方法流程图;
图 3 是根据本发明第三和第四实施例的承载设备和承载控制设备的结构示 意图;
图 4是图 3中查找单元的一个实施例的结构示意图。 具体实施方式 为使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本发明 的实施例作进一步地详细描述。
首先说明一下本发明中使用的一种表达方式。 本发明中使用 "A和 /或 B" 表示 "A" 或 "B" 或 "A和 B" 三种情况, 其中 A、 B各指代一种事物或动作。 例如, "预留和 /或分配" 表示 "预留" 或者 "分配" 或者 "预留并且分配"。 "A 和 /或 B" 是本技术领域的一种常用表达方式, 为了使本技术领域的普通技术人 员更好地理解本发明的技术方案, 使用了这种表达方式。
本发明第一实施例涉及一种资源管理方法。 在本实施例中, 在承载设备中 保存有抽象资源与具体资源的对应关系, 每个抽象资源对应至少一个具体资源, 该承载设备接收来自承载控制设备的指示预留和 /或分配抽象资源的消息, 在所 保存的对应关系中查找该消息要预留和 /或分配的抽象资源对应的各具体资源, 对这些具体资源执行预留和 /或分配操作。 从而在需要承载设备预留和 /或分配的 具体资源不只一项时, 可以通过一条指示预留和 /或分配抽象资源的消息, 来替 代多条指示预留和 /或分配具体资源的消息, 完成对承载设备的资源预留和 /或分 配指示, 使得承载控制设备可以更简便和高效地指示承载设备预留和 /或分配资 源。
在本实施例中, 预先定义的对应关系将被保存在 MG中。 该对应关系中可 以包括抽象资源的名称、 资源映射描述、 流程等信息。 其中 "资源映射描述" 用于描述抽象资源映射到哪些具体资源, 以及对该具体资源的管理行为描述; "流程" 用于描述使用该抽象资源、 该具体资源、 管理行为时需要遵守的规则 及流程, 如预留具体资源的次序等。
下面以承载控制设备是 MGC, 承载设备是 MG为例进行具体说明, 如图 2 所示。
在步骤 210中, 当 MGC需要指示 MG为终端、 流等进行资源预留和 /或分 配时, MGC 可以根据需要, 确定对应的抽象资源, 根据所确定的抽象资源向 MG发送指示预留和 /或分配抽象资源的消息;
该指示预留和 /或分配抽象资源的消息可以是一个包括抽象资源信息的命令 请求消息。 具体的说, 在本实施例中, 需要定义一个属性(Property )参数, 用 于描述需要 MG预留和 /或分配的抽象资源, 该属性参数可以定义在现有的包或 新的包中。 为了描述方便, 在本实施例中将该属性命名为 "资源描述(Resource Description, 简称 "RD" )" , 并将该属性定义在命名为 "抽象资源指示( Abstract Resource Management, 简称 "ARM" ) 包" 的新包中。 该属性参数应用于终端 或终端上的流。
该 RD属性参数中包括需要预留和 /或分配的抽象资源的名称, 用于唯一指 示已定义的一种抽象资源。 该属性参数的类型可以是一个字符串 (String ) 的列 表, 列表中的每个字符串实例 (Instance )或元素(Element ) 包括一个抽象资源 的名称。
在本步骤中, MGC可以通过设置 RD属性参数, 来指示 MG进行相应的具 体资源的预留和 /或分配。具体地说, MGC可以在向 MG发送的命令请求中携带 RD属性参数, 将所确定的抽象资源的名称设置在该 RD属性参数中。 在步骤 220中, MG收到来自 MGC的命令请求消息时, 从其中的 RD属性 参数获取抽象资源的名称, 并根据该抽象资源的名称在所保存的对应关系中查 找该抽象资源对应的各种具体资源, 即查找该抽象资源对应的 "资源映射描述" 和 "流程 ", 按照 "资源映射描述", 对其描述的具体资源进行预留和 /或分配操 作, 并根据其中的管理行为描述对相应的具体资源进行管理行为。 该预留和 /或 分配操作需要符合 "流程" 所描述的预定的规则和 /或流程。
在步骤 230中, MG向 MGC发送相应的命令响应。若资源预留和 /或分配成 功, 则 MG向 MGC返回正常响应; 若资源预留和 /或分配失败, 则向该 MGC 返回错误响应,在该错误响应中包括相应的错误码和 /或错误描述文本,例如" 510 Insufficient Resource" , 表示资源不足。
另夕卜, 在本实施例中, MGC还可以通过后续下发给 MG的 RD属性参数取 消已预留和 /或分配的资源, 例如: 若后续下发的 RD属性参数的取值中不包括 某个抽象资源的名称时,则该抽象资源被取消预留和 /或分配;若后续下发的 RD 属性参数的取值为空, 则所有抽象资源被取消预留和 /或分配。
下面针对本实施例进行举例说明, 比如说, 将为会议中的听众用户分配的 终端资源定义为一个抽象资源, 将其命名为 "只听参与者 ( ListenOnly Participant )" , 该抽象资源与具体资源的对应关系中包含如下内容:
抽象资源的名称: 只听参与者。
资源映射描述: 与该终端关联的流将为只收模式和音频类型。
流程: 当该终端被加入上下文时需要分配该抽象资源, 并且需要确保该终 端在该上下文中的期间, 与该终端关联的流为只收模式和音频类型。
包含上述定义的对应关系预先保存在 MG中 ,如果 MGC试图对该终端进行 不符合这些限制的设置, MG可以返回相应的错误响应。
MGC在需要 MG为某听众用户预留和 /或分配终端资源时, 向 MG发送命 令请求, 在该命令请求消息中携带 ARM包的 RD属性, 并将该 RD属性的值设 置为 "只听参与者", MG收到该命令请求后, 从该 RD属性确定需要预留和 /或 分配的抽象资源的名称, 并根据该名称 "只听参与者" 查找对应关系, 找到对 应的 "资源映射描述" 及 "流程", MG根据查找到的内容为该终端预留和 /或分 配只收音频流。 需要说明的是, 在本实施例中, 在定义了抽象资源与具体资源的对应关系 后, MGC需要确保后续进行的资源操作指示中涉及该对应关系中包含的内容的 部分与该对应关系的设置保持一致性, 否则 MG可以返回错误响应。
本实施例通过预先定义抽象资源和具体资源的对应关系, 使得可以通过发 送一条指示预留和 /或分配抽象资源的消息,来指示 MG预留和 /或分配多项具体 资源, 从而在需要 MG预留和 /或分配的具体资源以及对该具体资源的设置不只 一项时,可以减少 MGC发送指示预留和 /或分配资源消息的数目,使得 MGC可 以更简便和高效地指示 MG预留和 /或分配资源。
并且, 本实施例中, 只需在现有的命令请求消息中增加指示要预留和 /或分 配的抽象资源的属性, 即可形成指示预留和 /或分配抽象资源的消息, 也就是说, 只要对现有协议进行简单的扩展就可以达到更简便和高效地指示承载设备预留 和 /或分配资源的效果, 实现起来较为方便。
本发明第二实施例同样涉及一种资源管理方法, 与第一实施例大致相同, 其区别在于,在第一实施例中, MGC向 MG发送的指示预留和 /或分配抽象资源 的消息中, 即命令请求消息的 RD属性参数中, 只包括需要预留和 /或分配的抽 象资源的名称, MG收到该消息后,可以根据该名称查找该抽象资源对应的各具 体资源, 进行资源预留和 /或分配; 而在本实施例中, MGC向 MG发送的命令请 求消息的 RD属性参数中, 不仅包括需要预留和 /或分配的抽象资源的名称, 还 包括对该抽象资源的补充信息(称为额外数据)。 该额外数据用于在抽象资源的 基本定义的基础上进行补充, 即对预先定义的对应关系中该抽象资源对应的具 体资源进行补充说明, 包括: 为抽象资源对应的各具体资源中至少一项具体资 源进一步设置参数; 或者, 在预先定义的对应关系的基础上, 增加该抽象资源 对应的具体资源或减少该抽象资源对应的具体资源, 或修改其中一项具体资源 的参数等等。举例而言,根据上述案例,在 RD属性中包括名称为 "只听参与者" 的抽象资源时, 可以设置其额外数据为一个具体的音频资源的编码类型。
本实施例中, 该 RD属性参数的类型同样可以是一个字符串 ( String ) 的列 表, 列表中的每个字符串实例 (Instance )或元素(Element ) 包括抽象资源的名 称和额外数据, 例如可以釆用 "名称: 额外数据" 的格式。
MG在收到该命令请求消息后,可以根据该补充信息,在查找得到的各具体 资源所构成的资源集合基础上进行对应管理, 对经对应管理的资源集合中的各 具体资源执行预留和 /或分配操作。 针对上述案例, MG需要预留和 /或分配音频 资源, 并设置指定的编码类型。 通过该额外数据, 可以在唯一指示需要预留和 / 或分配的抽象资源的基础上, 对已定义的抽象资源作进一步的细化、 增删以及 部分修改, 使得该 MGC的资源预留和 /或分配指示更精确, 应用起来更灵活。
本发明第三实施例涉及一种承载设备, 该承载设备可以是 MG 1 , 如图 3所 示, 包括:
存储单元 10, 用于保存抽象资源与具体资源的对应关系, 每个抽象资源对 应至少一个具体资源; 接收单元 12, 用于接收来自承载控制设备的指示预留和 / 或分配抽象资源的消息; 查找单元 14, 用于在该存储单元 10保存的对应关系中 查找该消息要预留和 /或分配的抽象资源对应的各具体资源; 操作单元 16, 用于 对该查找单元 14查找到的具体资源执行预留和 /或分配操作。通过预先定义并存 储的抽象资源和具体资源的对应关系, 使得可以通过发送一条指示预留和 /或分 配抽象资源的消息, 来指示承载设备预留和 /或分配多项具体资源, 从而在需要 承载设备预留和 /或分配的具体资源以及对该具体资源的设置不只一项时, 可以 减少承载控制设备发送指示预留和 /或分配资源消息的数目, 使得可以更简便和 高效地指示承载设备预留和 /或分配资源。
其中, 该抽象资源与具体资源的对应关系中包括该抽象资源对应的该具体 资源的名称, 可选地包括对该具体资源的管理行为描述, 以及以下之一或其任 意组合: 使用该抽象资源所需要遵守的规则和 /或流程、 使用该具体资源所需要 遵守的规则和 /或流程、 进行该管理行为所需要遵守的规则和 /或流程。 该操作单 元根据该对应关系中包括的内容对该具体资源执行预留和 /或分配操作。
该指示预留和 /或分配抽象资源的消息是: 携带指示要预留和 /或分配的抽象 资源的属性(称为 RD属性)的消息; 如图 4所示, 在一个实施例中, 该查找单 元 14可包括以下子单元: 抽象资源获取子单元 140, 用于从该接收单元 12收到 的消息所携带的 RD属性中获取该消息要预留和 /或分配的抽象资源; 具体资源 查找子单元 142,用于在该对应关系中查找抽象资源获取单元得到的抽象资源对 应的各具体资源。 由于只要对现有协议进行简单的扩展就可以达到更简便和高 效地指示承载设备预留和 /或分配资源的效果, 实现起来较为方便。
该 RD属性包括抽象资源的名称, 还可选地包括对该抽象资源的补充信息。 该承载设备还可以包括: 补充设置单元 17, 用于根据 RD属性中的补充信息, 在查找单元 14得到的各具体资源所构成的资源集合基础上进行以下管理之一或 其任意组合:
为该资源集合中至少一项具体资源进一步设置参数,
向该资源集合增加至少一项具体资源,
从该资源集合中减少至少一项具体资源,
修改该资源集合中至少一项具体资源的参数。
该操作单元 16对经该补充设置单元 17管理的资源集合中的各具体资源执 行预留和 /或分配操作。 由于可以在预先保存的对应关系的基础上, 对该抽象资 源对应的一个或多个具体资源进行临时的管理行为、 修改、 资源增删, 使得能 够更精确地满足承载控制设备的资源预留和 /或分配需求, 实现起来更灵活和精 确。
该承载设备 1还可以包括: 响应单元 18, 用于在该操作单元 16执行预留和 /或分配操作成功时, 向该承载控制设备 2返回正常响应; 在该操作单元 16执行 预留和 /或分配操作失败时, 向该承载控制设备 2返回错误响应, 该错误响应中 包括错误码和 /或错误描述文本。
本发明第四实施例涉及一种承载控制设备,该承载控制设备 2可以是 MGC, 如图 3所示, 包括:
生成单元 20, 用于根据需要承载设备预留和 /或分配的资源生成指示预留和 /或分配抽象资源的消息; 发送单元 22, 用于将该指示预留和 /或分配抽象资源的 消息发送给该承载设备。
其中, 该指示预留和 /或分配抽象资源的消息是: 携带有指示要预留和 /或分 配的抽象资源的属性(称为 RD属性 )的消息。该 RD属性包括抽象资源的名称, 还可选地包括对该抽象资源的补充信息。
综上所述, 在本发明的实施例中, 预先在承载设备中保存抽象资源与具体 资源的对应关系, 每个抽象资源可对应一个或多个具体资源, 承载控制设备 2 在需要指示承载设备预留和 /或分配资源时, 向该承载设备 1发送指示预留和 /或 分配抽象资源的消息, 该消息中指示的抽象资源与实际需要承载设备预留的具 体资源相对应, 承载设备 1可以根据该消息预留和 /或分配对应的具体资源。 从 而在需要承载设备 1预留和 /或分配的具体资源不只一项时, 承载控制设备 2可 以通过发送一条指示预留和 /或分配抽象资源的消息, 来替代多条指示预留和 /或 分配具体资源的消息, 完成资源预留和 /或分配指示, 使得承载控制设备 2可以 更简便和高效地指示承载设备 1预留和 /或分配资源。
在现有的命令请求消息中增加指示要预留和 /或分配的抽象资源的属性, 形 成指示预留和 /或分配抽象资源的消息, 发送给承载设备 1。 由于只要对现有协 议进行简单的扩展就可以达到更简便和高效地指示承载设备预留和 /或分配资源 的效果, 实现起来较为方便。
指示要预留和 /或分配的抽象资源的属性中可以包括抽象资源的名称、 对该 抽象资源的补充信息等。从而不仅可以唯一指示需要预留和 /或分配的抽象资源, 而且可以对已定义的抽象资源作进一步的细化、 增删以及部分修改, 使得该承 载控制设备的资源预留和 /或分配指示更精确, 应用起来更灵活。
可以理解的是, 本领域普通技术人员可以理解实现上述实施例方法中的全 部或部分流程, 是可以通过程序来指令相关的硬件来完成, 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 己忆体 ( Radom Access Memory, RAM )等。
虽然通过参照本发明的某些优选实施例, 已经对本发明进行了图示和描述, 但本领域的普通技术人员应该明白, 可以在形式上和细节上对其作各种改变, 而不偏离本发明的精神和范围。

Claims

权 利 要 求
1. 一种资源管理方法, 其特征在于, 包括以下步骤:
接收来自承载控制设备的指示预留和 /或分配抽象资源的消息;
根据承载设备中保存的抽象资源与具体资源的对应关系, 查找所述消息要 预留和 /或分配的抽象资源对应的各具体资源, 其中, 每个抽象资源对应至少一 个具体资源;
对所述具体资源执行所述承载控制设备所指示的预留和 /或分配操作。
2. 根据权利要求 1所述的资源管理方法, 其特征在于,
所述抽象资源与具体资源的对应关系中包括所述抽象资源对应的所述具体 资源的名称。
3. 根据权利要求 2所述的资源管理方法, 其特征在于, 所述抽象资源与具 体资源的对应关系中还包括以下之一或其任意组合: 对所述具体资源的管理行 为描述, 使用所述抽象资源所需要遵守的规则流程, 使用所述具体资源所需要 遵守的规则流程, 进行所述管理行为所需要遵守的规则和 /或流程;
在对所述具体资源执行预留和 /或分配操作的步骤中, 根据所述对应关系中 包括的内容对所述具体资源执行预留和 /或分配操作。
4. 根据权利要求 1所述的资源管理方法, 其特征在于,
所述指示预留和 /或分配抽象资源的消息是: 携带有指示要预留和 /或分配的 抽象资源的属性的消息;
所述承载设备在对应关系中查找所述消息要预留和 /或分配的抽象资源对应 的各具体资源的步骤中, 包括以下子步骤:
所述承载设备从所述消息的所述属性中获取所述消息要预留和 /或分配的抽 象资源;
在所述对应关系中查找所述获取的抽象资源对应的各具体资源。
5. 根据权利要求 4所述的资源管理方法, 其特征在于, 所述属性包括所述 抽象资源的名称和所述抽象资源的补充信息;
所述对具体资源执行预留和 /或分配操作的步骤之前还包含以下步骤: 所述承载设备根据所述补充信息, 在所述查找步骤得到的各具体资源所构 成的资源集合基础上进行以下管理之一或其任意组合: 为所述资源集合中至少一项具体资源进一步设置参数,
向所述资源集合增加至少一项具体资源,
从所述资源集合中减少至少一项具体资源,
修改所述资源集合中至少一项具体资源的参数;
所述对具体资源执行预留和 /或分配操作的步骤中, 对经所述管理的资源集 合中的各具体资源执行预留和 /或分配操作。
6. 一种承载设备, 其特征在于, 包括:
存储单元, 用于保存抽象资源与具体资源的对应关系, 每个抽象资源对应 至少一个具体资源;
接收单元, 用于接收来自承载控制设备的指示预留和 /或分配抽象资源的消 息;
查找单元, 用于在所述存储单元保存的对应关系中查找所述消息要预留和 / 或分配的抽象资源对应的各具体资源;
操作单元,用于对所述查找单元查找到的具体资源执行预留和 /或分配操作。
7. 根据权利要求 6所述的承载设备, 其特征在于, 所述接收单元接收的指 示预留和 /或分配抽象资源的消息是: 携带有指示要预留和 /或分配的抽象资源的 属性的消息;
所述查找单元包括以下子单元:
抽象资源获取子单元, 用于从所述接收单元收到的所述消息携带的所述属 性中获取该消息要预留和 /或分配的抽象资源;
具体资源查找子单元, 用于在所述对应关系中查找所述抽象资源获取单元 得到的抽象资源对应的各具体资源。
8. 根据权利要求 7所述的承载设备, 其特征在于, 所述接收单元接收的所 述消息中携带的指示要预留和 /或分配的抽象资源的属性包括所述抽象资源的名 称和对该抽象资源的补充信息;
所述承载设备还包括:
补充设置单元, 用于根据所述补充信息, 在所述查找单元得到的各具体资 源所构成的资源集合基础上进行以下管理之一或其任意组合:
为所述资源集合中至少一项具体资源进一步设置参数,
向所述资源集合增加至少一项具体资源, 从所述资源集合中减少至少一项具体资源,
修改所述资源集合中至少一项具体资源的参数;
所述操作单元对经所述补充设置单元管理的资源集合中的各具体资源执行 预留和 /或分配操作。
9. 根据权利要求 6所述的承载设备, 其特征在于, 还包括:
响应单元, 用于在所述操作单元执行所述预留和 /或分配操作成功时, 向所 述承载控制设备返回正常响应; 在所述操作单元执行所述预留和 /或分配操作失 败时, 向所述承载控制设备返回错误响应, 该错误响应中包括错误码和 /或错误 描述文本。
10. 一种承载控制设备, 其特征在于, 包括:
生成单元, 用于根据需要承载设备预留和 /或分配的资源, 生成指示预留和 / 或分配抽象资源的消息;
发送单元, 用于将所述指示预留和 /或分配抽象资源的消息发送给所述承载 设备。
PCT/CN2008/071174 2007-06-04 2008-06-03 Procédé de gestion de ressources, dispositif de support et dispositif de commande de support WO2008148347A1 (fr)

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