WO2008074236A1 - Procédé, dispositif et système d'affectation de ressource multimédia - Google Patents

Procédé, dispositif et système d'affectation de ressource multimédia Download PDF

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Publication number
WO2008074236A1
WO2008074236A1 PCT/CN2007/070612 CN2007070612W WO2008074236A1 WO 2008074236 A1 WO2008074236 A1 WO 2008074236A1 CN 2007070612 W CN2007070612 W CN 2007070612W WO 2008074236 A1 WO2008074236 A1 WO 2008074236A1
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WO
WIPO (PCT)
Prior art keywords
media resource
processing device
capability information
resource processing
media
Prior art date
Application number
PCT/CN2007/070612
Other languages
English (en)
French (fr)
Inventor
Lin Lin
Yanyu Wu
Tao Song
Gaofeng Yang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to CNA2007800003262A priority Critical patent/CN101467391A/zh
Publication of WO2008074236A1 publication Critical patent/WO2008074236A1/zh
Priority to US12/181,797 priority patent/US20080288951A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1069Session establishment or de-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/72Admission control; Resource allocation using reservation actions during connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/78Architectures of resource allocation
    • H04L47/782Hierarchical allocation of resources, e.g. involving a hierarchy of local and centralised entities
    • 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
    • H04L47/82Miscellaneous aspects
    • H04L47/824Applicable to portable or mobile terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • H04L67/1001Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • H04L67/1001Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1004Server selection for load balancing
    • H04L67/1021Server selection for load balancing based on client or server locations

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, apparatus and system for media resource allocation. Background technique
  • NGN Next Generation Network
  • MGC Media Gateway Control
  • MRS Media Resource Server
  • the media resource function is decomposed into a media resource function control (MRFC) and a media resource function (MRFP), where the MRFC is responsible for controlling and connecting media resources.
  • the MRFP is responsible for processing the media resources, and the MRFC controls the MRFP to process the media resources, and the two cooperate to provide media resource functions.
  • An MRFC can manage and control multiple MRFPs to provide external resources. When an MRFC controls multiple MRFPs, there is a question of how the MRFC chooses the MRFP.
  • the MRFC After receiving the media resource request, the MRFC needs to select an MRFP for media resource processing, but the MRFC is not fully aware of the resource occupancy on the MRFP. Therefore, the MRFC may select the MRFP that has no resources, and the resource processing will fail; In addition, MRFC's irregular selection of MRFP will also result in unbalanced load between MRFPs and affect system stability.
  • the solution to this problem in the prior art is that the MRFP specifies the MRFP to perform media resource operations. If the MRFP media resources are insufficient, the MRFP will return an error indicating that the resources are insufficient. At this time, the MRFC controls another MRFP to provide resources, or directly releases the resources. Call, the prompt failed. Stop operating this MRFP for a subsequent period of time.
  • the inventor found in the process of implementing the present invention that the following shortcomings exist in the following manner: 1. The selection of the MRFP is randomly selected by the MRFC, and the probability of error in the process is large due to the randomness of the MRFC selection; 2. The MRFP is not solved. The problem of uneven load between the two.
  • the present invention provides a method, device and system for media resource allocation, which can reduce media resource requirements Find the probability of error in the response and improve load balancing.
  • the present invention provides a media resource allocation method, including: when receiving a resource operation request, allocating a media resource processing device to the resource operation request according to the saved capability information of each media resource processing device; and dynamically updating the saving Capability information of the media resource processing device.
  • the present invention further provides a media resource control apparatus, including: a storage unit, configured to store capability information of each media resource processing device; and an allocating unit, configured to allocate media for the resource operation request according to the capability information saved in the storage unit a resource processing device; a dynamic update unit, configured to dynamically update capability information of the media resource processing device saved by the storage unit.
  • a media resource control apparatus including: a storage unit, configured to store capability information of each media resource processing device; and an allocating unit, configured to allocate media for the resource operation request according to the capability information saved in the storage unit a resource processing device; a dynamic update unit, configured to dynamically update capability information of the media resource processing device saved by the storage unit.
  • the present invention also provides a media resource allocation system, including media resource processing devices that provide resources for media resource operation requests, and media resource control devices, for receiving media operation requests, according to media currently saved.
  • the capability information of the resource processing device allocates the media resource processing device to the resource operation request; and dynamically updates the saved capability information of each of the media resource processing devices.
  • the present invention allocates resources according to the currently stored capability information of each media resource processing device, and updates the saved capability information in time to achieve reasonable resource allocation and load balancing. Thereby reducing the probability of errors in responding to media resource requirements, better providing services to users, and improving user satisfaction.
  • 1 is an implementation flow of a media resource allocation method in the present invention
  • FIG. 3 is an embodiment of a media resource control apparatus according to the present invention.
  • FIG. 4 is a block diagram of an embodiment of a media resource allocation system in the present invention.
  • FIG. 5 is a block diagram of an embodiment of the media resource control apparatus of Figure 4.
  • the demand entity of the media resource function may be a broadband terminal in the NGN; in the 3G (the third generation third generation mobile communication system) network, it may be an application server (APP Server, application server) or a terminal.
  • the media resource control device is called MGC.
  • MGC Media Gateway Controller Media Gateway Controller
  • MRS Media Resource Server
  • MRFFC Media Resource Server
  • MRFP Media Resource Processing Device
  • the present invention uses the terminology in 3G as an example to explain the technical solutions of the embodiments of the present invention, but it should be understood that the scope of protection of the embodiments of the present invention also includes equivalent replacement, replacement of the same concept, and is not limited to 3G. The scope is not limited by the terminology.
  • the media resource control device dynamically updates the capability information of each media resource processing device that is locally recorded (ie, saved). And when the media resource control device receives the resource operation request, the media resource processing device is allocated for the current resource operation request according to the capability information of each media resource processing device that was last updated (that is, currently saved).
  • the capability information may include one or more of the following: resource idle information, resource occupancy information, overall resource information, classification information, and capability type information, and other information of the same type may of course be included.
  • the dynamic update process may be performed each time a resource resource processing device is allocated for a resource operation request or the allocated media resource processing device is released; it may also be performed on a periodic basis.
  • the specific method for the media resource control device to update the saved capability information of the media resource processing device may include: after the media resource processing device is allocated to the resource operation request, reducing resource idle information of the allocated media resource processing device; and the media resource processing device After being released, the resource idle information of the released media resource processing device is increased.
  • the method further includes: after the media resource processing device is allocated to the resource operation request, increasing the resource occupation information of the allocated media resource processing device; after the media resource processing device is released, reducing the resource occupation information of the released media resource processing device .
  • the consistency of the saved configuration information that is, the capability information of each media resource processing device saved by the media resource control device
  • the actual information ie, the actual capability information of each media resource processing device
  • the actual capacity of the device itself is used to allocate reasonable media resources to achieve load balancing.
  • the method for allocating the media resource processing device for the current resource operation request according to the capability information of each media resource processing device that is updated recently includes: if the capability information meets the resource resource request of the resource operation request The device, the media resource processing device that allocates the capability information to meet the requirement for the resource operation request; otherwise, the resource operation request is allocated for the current resource operation request.
  • the media resource processing device ie, the most idle media resource processing device with the largest resource idle information maximum or the resource occupancy information is the smallest or rejects the current resource operation request.
  • the resource operation request may be rejected when there is no media resource processing device that satisfies the resource operation request requirement.
  • the request is sent to the media resource processing device for processing; if at least two media resource processing devices satisfy the requirement, the most idle or distance resource operation requester is selected (in the field)
  • the resource operation requester is the demand entity that initiated the resource operation request) the most recent media resource processing device processing.
  • the resource idle information is set to none, and the media resource processing device is no longer selected to process the received resource operation request. This can prevent some media resource processing devices from being accessed when they exit the service, and avoid erroneous resource allocation.
  • the media resource control device may also obtain capability information of each media resource processing device through data configured by the terminal at the time of initialization, and record the capability information.
  • the media resource control device may periodically audit the capability information of each media resource processing device, and update the local record capability information according to the audit result; and/or each media resource processing device periodically reports the capability information to the media resource control device, and the media resource control device The locally recorded capability information is updated according to the capability information reported by each media resource processing device.
  • the method flow of media resource allocation is described as follows:
  • the MRFC retains the resource capability information of the MRFP during operation, and selects an appropriate MRFP according to the resource capability of the request when receiving the resource operation request.
  • the MRFC needs to analyze the resource capability of the request, select an appropriate MRFP for processing, and reduce the resource idle information of the selected MRFP; and when the resource is no longer used for release, increase the resource idle information of the corresponding MRFP; That is, the dynamic update of the MRFP resource idle information is maintained in the process.
  • the MRFP that is the most idle or the closest to the resource requester may be selected or the appropriate MRFP may be selected according to other requirements. If a certain MRFP is found to be busy, the resources are occupied more frequently, and subsequent resource capability requests preferentially select other MRFPs. The flow control of different state MRFPs and the load balancing of each MRFP are realized.
  • the MRFC selects a certain MRFP to provide the media resource capability, it is required to synchronously reduce the capability information of the corresponding MRFP saved by the MRFC (mainly resource capability information), to avoid the saved capability information being incorrect, and subsequent resource allocation errors; Need to increase when released.
  • the capability information of the corresponding MRFP saved by the MRFC mainly resource capability information
  • the MRFC and the MRFP can periodically maintain the consistency of the status through regular audit messages or MRFP status messages.
  • Step 101 According to the user terminal configuration information when the MRFC is initialized or after running. Initialize the resource capability information of all MRFPs under the jurisdiction, or update the resource capability information of all MRFPs according to the static configuration information during operation; MRFC saves the capability information of all MRFPs.
  • Step 102 The MRFC receives a resource operation request sent by a resource requirement entity (such as an APP server, a terminal) (for example, requesting TTS to specify file playback).
  • a resource requirement entity such as an APP server, a terminal
  • Steps 103-114 are described as follows:
  • the MRFC analyzes the resource capabilities required for the resource operation request, and at the same time, according to the required resource capabilities, combined with the saved capability information, finds the MRFP that meets the resource capability requirements. If only one MRFP meets this capability requirement, a resource operation request is sent to this MRFP for processing. (The MRFP2 is shown in the figure.
  • the analysis step can be further described as: the media resource control device according to the received resource Manipulating the request, analyzing the capability information of the media resource processing device, and searching for the media resource processing device that satisfies the request: if only one media resource processing device satisfies the requirement, sending the request to the media resource processing device for processing; if there are The media resource processing device satisfies the demand, and then selects the media resource processing device that is the most idle or closest to the resource operation requester.
  • the media resource control device dynamically updates the saved capability information of the media resource processing device during processing of the received resource operation request.
  • the dynamic update step may be: when the media resource processing device is selected to be used, the resource idle information of the selected media resource processing device is reduced; when the media asset processing device is selected to be released, the resource idle information of the selected media resource processing device is increased.
  • Media resource processing When the device does not provide the service, the resource idle information is set to none. If the information value is "0" or "null", the information identifier of the service is no longer provided. When the media resource control device obtains such information, it is no longer Select this property processing device to process the received request.
  • Steps 105-113 may also be: After receiving the resource operation request, the MRFP2 processes the resource operation response and the result, and the MRFC reports the information to the resource requesting entity (in the embodiment, the APP server is taken as an example).
  • the step 114 may be: in the process of operating the MRFP2, when requesting the MRFP service, the MRFC dynamically reduces the resource capability information of the saved MRFP2; when the resource is released, the MRFC dynamically increases the resource capability information of the saved MRFP2.
  • FIG. 2 another implementation flow of the media resource allocation method can be described as follows:
  • Step 201 After the MRFC is run, the resource capability information of all MRFPs is updated according to the user terminal configuration information, and the MRFC saves the capability information of all MRFPs.
  • Steps 202-204 The MRFC receives a resource operation request sent by a resource requirement entity (such as an APP Server) (such as requesting TTS to specify file playback).
  • a resource requirement entity such as an APP Server
  • the MRFC analyzes the required resource capabilities and, based on the required resource capabilities, finds MRFPs that meet resource capacity requirements. If there are multiple MRFPs that meet this capability requirement, select the most idle MRFP to handle this resource capability request.
  • MRFP1 The most idle one in Figure 2 is MRFP1, which avoids random distribution of MRFC, resulting in unbalanced resource load between MRFPs.
  • Steps 205-214 The MRFP1 processes the resource operation request, reports the resource operation response and the result, and the MRFC uploads the information to the resource request entity (here, APP Server).
  • the resource request entity here, APP Server.
  • the MRFC dynamically reduces the resource capability information of the saved MRFP1; when the resource is released, the MRFC dynamically increases the resource capability information of the saved MRFP1.
  • the embodiment of the invention further discloses a media resource control device. As shown in FIG. 3, the device includes
  • a storage unit 601, configured to save capability information of each media resource processing device
  • the allocating unit 602 is configured to allocate, according to the capability information saved in the storage unit 601, a media resource processing device for the resource operation request;
  • the updating unit 603 is configured to allocate a media resource for the resource operation request at each allocation unit 602. After the processing device or the allocated media resource processing device is released, the capability information of the corresponding media resource processing device in the storage unit 601 is updated.
  • the apparatus may further include an initialization unit, configured to obtain capability information of the media resource processing device by the data configured by the terminal when the media resource control device is initialized, and provide the capability information to the storage unit.
  • the initialization unit may be merged with the storage unit 601 or may be separately set.
  • the apparatus may further include an auditing unit for periodically auditing the capability information of each of the media resource processing apparatuses and updating the capability information held by the storage unit according to the audit result.
  • the receiving unit may further be configured to receive the capability information reported by each media resource processing device, and update the capability information saved by the storage unit according to the reported capability information.
  • the auditing unit and the receiving unit may be separately set, may be combined, or may be merged with the updating unit 603, or may be combined in three ways, depending on the networking mode, and cost and other related factors. Means should be included in the scope of protection of the present invention.
  • the audit unit and the receiving unit do not have to be available at the same time, and only one of them can be configured.
  • the embodiment of the present invention further discloses a media resource allocation system.
  • the system includes a media resource processing device 72 that provides resources for a media resource operation request, and further includes allocating media for the media resource operation request.
  • the media resource control device 71 of the resource processing device may also further include a specific media resource requirement entity 73 that proposes a requirement, such as a broadband terminal. among them:
  • the media resource control device 71 is configured to: after each time the resource resource processing device is allocated for the resource operation request, or the allocated media resource processing device is released, update the capability information of the locally recorded corresponding media resource processing device; and Upon the resource operation request, the media resource processing device 72 is allocated for the current resource operation request based on the capability information of each media resource processing device 72 that has been updated last time, and the allocation information is transmitted to the corresponding media resource processing device 72.
  • the media resource control apparatus 71 further includes: a storage unit 601, configured to save capability information of each media resource processing apparatus 72;
  • the allocating unit 602 is configured to allocate a media resource processing device 72 to the resource operation request according to the capability information stored in the storage unit 601;
  • the updating unit 603 is configured to update the capability information of the corresponding media resource processing device 72 in the storage unit 601 after each allocation unit 602 allocates the media resource processing device 72 for the resource operation request or the allocated media resource processing device 72 is released. .
  • the media resource control device 71 may further include an initialization unit for the media resource control device At the time of initialization 71, the capability information of the media resource processing device 72 is obtained by the data configured by the terminal, and the capability information is saved to the storage unit 601.
  • the initialization unit may be separately provided in the media resource control device 71 or may be combined with the storage unit 601.
  • the media resource control device 71 In order to prevent the MRFC (one of the media resource control devices 71) from being inconsistent with the information of the specific resource status on the MRFP (one of the media resource processing devices 72), in other words, to dynamically update the capability information stored on the MRFC, the synchronization of the information states can be maintained between the MRFC and the MRFP in the following manner: the media resource control device 71 periodically audits the capability messages of the respective media resource processing devices 72; or the media resource processing devices 72 periodically provide the capabilities to the media resource control device 71. Message.
  • the media resource control device 71 may further include an auditing unit, configured to periodically audit the capability information of each media resource processing device 72 and update the capability information saved by the storage unit 601 according to the audit result; the auditing unit may be separately set, or may be updated with the update unit. 603 merged together.
  • the media resource processing device 72 may further include a response unit, configured to send the capability information of the media resource processing device 72 to the auditing unit in response to the auditing of the auditing unit.
  • the media resource processing device 72 further includes a reporting unit, configured to periodically report the capability information to the media resource control device 71;
  • the media resource control device 71 may further include a receiving unit, configured to receive the capability information periodically reported by each media resource processing device 72, and update the capability information saved by the storage unit 601 according to the reported capability information.
  • the media resource control device 71 dynamically updates the capability information of the stored media resource processing device 72 during processing of the received resource operation request.
  • the dynamic update may be further described as: selecting to use the media resource processing device 72 to reduce the resource idle information of the selected media resource processing device 72 in response to the request; when selecting to release the media resource processing device 72, increasing the selected media resource The resource idle information of the processing device 72.
  • the capability information saved by the media resource control device is updated.
  • the purpose of this specific manner is to dynamically update the capability information of each media resource control device held by the media resource control device.
  • the media resource control device may periodically audit the capability information of each media resource processing device, and update the locally recorded capability information according to the audit result; and/or each media resource processing device periodically reports the capability information to the media resource control device, the media resource.
  • the control device updates the locally recorded capability information according to the capability information reported by each media resource processing device.
  • the capability information saved by the dynamic update media resource control apparatus includes, but is not limited to, the above three specific manners, and the foregoing three specific manners may be used alone or in any combination.
  • the media resource processing device that is the most idle or closest to the resource operation requester is selected for processing.
  • metrics can be combined to make a more balanced choice, such as integrated idleness and distance from resource operation requesters, and appropriate media processing device processing is selected by balanced selection.
  • one of the media resource processing device processes is selected according to a predetermined criteria.
  • the media resource control apparatus dynamically updates the capability information of the saved media resource processing apparatus during the processing of the received resource operation request.
  • the dynamic update step may be: when the media resource processing device is selected to be used, the resource idle information of the selected media resource processing device is reduced; when the media asset processing device is selected to be released, the resource idle information of the selected media resource processing device is increased. .
  • the media resource control device may periodically audit the capability information of each media resource processing device, or receive the capability information periodically reported by each media resource processing device, and then dynamically update the saved capability information accordingly.
  • the capability information of the media resource processing apparatus saved by the storage unit 601 can be updated in time by the updating unit 603; and the media resource processing apparatus that can be saved by the storage unit 601 by the auditing unit or the receiving unit.
  • the capability information is updated periodically.
  • the purpose of dynamically updating the capability information of the media resource processing device saved by the storage unit 601 can be achieved whether it is a timely update or a periodic update. Therefore, the audit unit, the receiving unit, and the updating unit 603 do not have to be provided at the same time, and only one of them can be configured to dynamically update the capability information stored in the media resource processing device.
  • the update unit 603 and the audit unit may be used together, or The update unit 603 and the receiving unit are used in combination, that is, the timely update and the periodic update are used together.
  • the update unit, the audit unit, and the receiving unit may be summarized as a dynamic update unit, which is used to dynamically update the capability information of the media resource processing device saved by the storage unit 601.
  • the dynamic update unit may include only one of the audit unit, the receiving unit, and the update unit 603, and may also include any two or all of them.

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Description

媒体资源分配的方法、 装置和系统
本申请要求于 2006 年 12 月 19 日提交中国专利局、 申请号为 200610157688.X,发明名称为"媒体资源分配的方法、 装置和系统"的中国专利 申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域, 特别是涉及媒体资源分配的方法、 装置和系统。 背景技术
随着通信技术的日新月异, 对媒体资源部件的要求也越来越高。 以
NGN(Next Generation Network, 下一代网络)为例, MGC (媒体网关控制)控 制 MRS (媒体资源服务器), 对外提供媒体资源功能。 以 3G组网为例, 将媒 体资源功能 MRF ( media resource function )分解为媒体资源控制 MRFC ( media resource function control )与媒体资源处理 MRFP ( media resource function process ), 其中 MRFC负责媒体资源的控制与接入, MRFP负责进行媒体资源 的处理, MRFC控制 MRFP进行媒体资源处理, 二者协作对外提供媒体资源 功能。 一个 MRFC可以管理、 控制多个 MRFP对外提供资源。 当一个 MRFC 控制多个 MRFP的时候, 会存在 MRFC如何选择 MRFP的问题。 MRFC在收 到媒体资源请求之后, 需要选择一个 MRFP进行媒体资源处理, 但 MRFC并 不完全知晓 MRFP上的资源占用情况, 因此 MRFC可能选择已经没有资源的 MRFP, 此时资源处理就会失败; 另夕卜, MRFC无规律的选择 MRFP, 也会导 致各个 MRFP之间负载不均衡, 影响系统稳定。
现有技术中解决此问题的方式是, 由 MRFC指定 MRFP进行媒体资源操 作, 如果 MRFP媒体资源不足, MRFP会返回错误, 提示资源不足, 此时由 MRFC控制选择另外一个 MRFP提供资源, 或者直接释放呼叫, 提示失败。 在后续一段时间内, 停止对此 MRFP进行操作。 发明人在实现本发明过程中 发现, 这种方式存在下列缺点: 1、 对 MRFP的选择是由 MRFC随机选择的, 由于 MRFC选择的随机性, 导致过程中出错的概率大; 2、 未解决 MRFP之间 负载不均衡的问题。
发明内容
本发明提供一种媒体资源分配的方法、装置和系统,可以降低媒体资源需 求响应中的出错概率以及提高负载均衡。
本发明提供了一种媒体资源分配方法, 包括: 在收到资源操作请求时, 根 据保存的各媒体资源处理装置的能力信息为所述资源操作请求分配媒体资源 处理装置; 以及动态更新所述保存的媒体资源处理装置的能力信息。
本发明还提供了一种媒体资源控制装置, 包括: 存储单元, 用于保存各媒 体资源处理装置的能力信息; 分配单元, 用于依据所述存储单元中保存的能力 信息为资源操作请求分配媒体资源处理装置; 动态更新单元, 用于动态更新所 述存储单元保存的媒体资源处理装置的能力信息。
本发明还提供了一种媒体资源分配系统,包括为媒体资源操作请求提供资 源的各媒体资源处理装置,还包括媒体资源控制装置,用于在收到资源操作请 求时 ,根据当前保存的各媒体资源处理装置的能力信息为所述资源操作请求分 配媒体资源处理装置;以及动态更新所述保存的各媒体资源处理装置的能力信 息。
综上所述可以看出,本发明根据当前保存的各媒体资源处理装置的能力信 息来分配资源, 并及时更新保存的能力信息, 以实现合理分配资源, 并实现了 负载均衡。从而降低在响应媒体资源需求时出错的概率, 更好的为用户提供服 务, 提升用户满意度。
附图说明
图 1为本发明中媒体资源分配方法的一种实施流程;
图 2为本发明中媒体资源分配方法的另一种实施流程;
图 3为本发明中媒体资源控制装置的一种实施方式;
图 4为本发明中媒体资源分配系统的一种实施例框图;
图 5为图 4中包括媒体资源控制装置的一种实施例的框图。
具体实施方式
为使本发明提供的技术方案实施例及优点更加清楚明白 ,以下参照附图并 举实施例, 对本发明各实施例做进一步的详细说明。
媒体资源功能(MRF )的需求实体在 NGN中可能为宽带终端; 在 3G(the third generation 第三代移动通信系统)网络中可能为应用服务器(APP Server, application server )或者终端。在 NGN中,媒体资源控制装置称为 MGC ( Media Gateway Controller媒体网关控制器), 媒体资源处理装置称为 MRS ( Media Resource Server媒体资源服务器); 在 3G网络中, 媒体资源控制装置 称为 MRFC, 媒体资源处理装置称为 MRFP。 为描述方便, 本发明以 3G中的 术语为例, 来举例解释本发明实施例的技术方案,但应该理解到本发明实施例 的保护范围也包括等同替换、 相同概念的置换, 不局限于 3G范围, 不因术语 的不同而使保护范围受限。
在本发明实施例中 ,媒体资源控制装置在为资源操作请求分配媒体资源处 理装置或已分配的媒体资源处理装置被释放后, 动态更新本地记录(即保存) 的各媒体资源处理装置的能力信息;以及媒体资源控制装置收到资源操作请求 时, 根据最近一次更新 (即当前保存 )的各媒体资源处理装置的能力信息为本 次资源操作请求分配媒体资源处理装置。能力信息可以包括以下一项或者多项 内容: 资源空闲信息、 资源占用信息、 总体资源信息、 分类信息和能力类型信 息, 同类的其他信息当然也可以包括在内。动态更新过程可以在每一次为资源 操作请求分配媒体资源处理装置或已分配的媒体资源处理装置被释放后都进 行; 也可以按周期进行。
媒体资源控制装置更新所保存的媒体资源处理装置的能力信息的具体方 法可以包括: 将媒体资源处理装置分配给资源操作请求后, 减少所分配的媒体 资源处理装置的资源空闲信息;媒体资源处理装置被释放后,增大被释放的媒 体资源处理装置的资源空闲信息。也可以包括: 将媒体资源处理装置分配给资 源操作请求后, 增大所分配的媒体资源处理装置的资源占用信息;媒体资源处 理装置被释放后, 减少被释放的媒体资源处理装置的资源占用信息。 据此, 通 过保存的配置信息(即媒体资源控制装置保存的各媒体资源处理装置的能力信 息)与实际信息(即各媒体资源处理装置当前的实际能力信息)的一致性, 保 证按照媒体资源处理装置本身的实际能力进行合理的媒体资源分配,实现负载 均衡。
所述媒体资源控制装置根据最近一次更新的各媒体资源处理装置的能力 信息, 为本次资源操作请求分配媒体资源处理装置的方法包括: 如果有能力信 息满足所述资源操作请求需求的媒体资源处理装置,则为本次资源操作请求分 配能力信息满足需求的媒体资源处理装置;反之, 为本次资源操作请求分配当 前资源空闲信息最大或资源占用信息最小的媒体资源处理装置(即最空闲的媒 体资源处理装置)或拒绝本次资源操作请求。这里可以尽可能的考虑到用户的 需求, 尽量满足需求实体的需求, 以提升用户满意度。 当然也可以在没有满足 资源操作请求需求的媒体资源处理装置时, 拒绝本次资源操作请求。
如果只有一个媒体资源处理装置满足需求,则将所述请求发送给该媒体资 源处理装置处理; 如果有至少两个媒体资源处理装置满足需求, 则选择最空闲 的或距离资源操作请求者(本领域技术人员可以理解, 资源操作请求者就是发 起所述资源操作请求的需求实体)最近的媒体资源处理装置处理。
此外,所述媒体资源处理装置不提供服务时,将其资源空闲信息设置为无, 进而不再选择此媒体资源处理装置处理收到的资源操作请求。这可以避免有的 媒体资源处理装置退出服务时,还会被访问的情况发生,避免了错误的资源分 配。
媒体资源控制装置还可以在初始化时,通过终端配置的数据获得各媒体资 源处理装置的能力信息, 并记录所述能力信息。
媒体资源控制装置还可以定期审计各媒体资源处理装置的能力信息,并根 据审计结果更新本地记录的能力信息; 和 /或各媒体资源处理装置定期向媒体 资源控制装置上报能力信息,媒体资源控制装置根据各媒体资源处理装置上报 的能力信息更新本地记录的能力信息。进一步举例,媒体资源分配的方法流程 描述如下:
MRFC在运行中保留 MRFP的资源能力信息, 在接收到资源操作请求的 时候根据该请求的资源能力选择合适的 MRFP。在处理资源请求过程中 MRFC 需要分析该请求的资源能力, 选择合适的 MRFP进行处理, 同时减少所选择 MRFP的资源空闲信息;在资源不再使用而释放时,增大对应 MRFP的资源空 闲信息; 即在过程中维护 MRFP资源空闲信息的动态更新。
如果发现该请求的资源能力只有其中一个 MRFP满足要求 , 则只能选择 此 MRFP, 避免选择其他 MRFP而导致资源处理失败。
如果发现请求的资源能力有多个 MRFP 满足要求, 则可以选择最空闲的 或者选择距离资源请求者位置最近的 MRFP 或者根据其他需求选择合适的 MRFP。 如果发现某一个 MRFP较忙, 资源占用较多, 后续资源能力请求优先选 择其他 MRFP。 实现对不同状态 MRFP的流控与各个 MRFP的负载均衡。
在 MRFC选择某一个 MRFP提供媒体资源能力的时候, 需要同步减少 MRFC保存的对应 MRFP的能力信息(主要是资源方面的能力信息), 避免保 存的能力信息不正确, 后续资源分配出现错误; 在资源释放的时候需要增大。
在 MRFP整体迁出服务的时候, 需要设置此 MRFP上所有资源不可用, 即空闲资源为无, 不再选择此 MRFP上的资源。
为了防止 MRFC与 MRFP上具体资源状态的不一致, MRFC与 MRFP之 间可以通过定期审计消息或者 MRFP的状态消息定期上 以维持状态的一致。
参见附图 1, 媒体资源分配方法的一种实施流程:
步骤 101 : MRFC初始化时或者运行之后根据用户终端配置信息。 初始化 所管辖的所有 MRFP 的资源能力信息, 或者在运行中根据静态配置的信息更 新所有 MRFP的资源能力信息; MRFC对所有 MRFP的能力信息进行保存。
步骤 102: MRFC收到资源需求实体(如 APP Server、 终端)发送的资源 操作请求(如要求进行 TTS指定文件放音)。
步骤 103-114描述为: MRFC对资源操作请求所需要的资源能力进行分析, 同时根据需要的资源能力, 结合保存的能力信息, 查找满足此资源能力需求的 MRFP。如果只有一个 MRFP满足此能力需求,将资源操作请求发送给此 MRFP 进行处理。 (图示中为 MRFP2。 此时可以避免 MRFC随机分发, 导致发送到 一个不支持此资源操作的 MRFP而出现资源操作失败。)分析的步骤可以进一 步描述为:媒体资源控制装置根据收到的资源操作请求,分析媒体资源处理装 置的能力信息, 查找满足所述请求的媒体资源处理装置: 如果只有一个媒体资 源处理装置满足需求, 则将所述请求发送给该媒体资源处理装置处理; 如果有 多个媒体资源处理装置满足需求,则选择最空闲的或距离资源操作请求者最近 的媒体资源处理装置处理。
媒体资源控制装置在处理收到的资源操作请求过程中,动态更新所保存的 媒体资源处理装置的能力信息。动态更新步骤可以为: 选择使用媒体资源处理 装置时, 减少所选择的媒体资源处理装置的资源空闲信息; 选择释放媒体资源 处理装置时,增大所选择的媒体资源处理装置的资源空闲信息。媒体资源处理 装置不提供服务时, 将其资源空闲信息设置为无, 如信息数值为 "0"、 "null", 表示不再提供服务的信息标识, 当媒体资源控制装置获取此类信息时, 即不再 选择此媒体资源处理装置处理收到的请求。
其中步骤 105-113还可以为: MRFP2收到资源操作请求之后进行处理, 上报资源操作应答与结果, MRFC将这些信息上报给资源请求实体(本实施例 中以 APP Server为例)。
其中步骤 114还可以为: 在操作 MRFP2的过程中, 请求 MRFP服务时, MRFC动态减少保存的 MRFP2的资源能力信息; 在资源释放时, MRFC动态 增大保存的 MRFP2的资源能力信息。
参见附图 2, 媒体资源分配方法的另一种实施流程可描述如下:
步骤 201 : MRFC运行之后根据用户终端配置信息更新所有 MRFP的资源 能力信息, MRFC对所有 MRFP的能力信息进行保存。
步骤 202-204: MRFC收到资源需求实体(如 APP Server )发送的资源操 作请求(如要求进行 TTS指定文件放音)。 MRFC对需要的资源能力进行分析, 同时根据需要的资源能力 ,查找满足资源能力需求的 MRFP。如果有多个 MRFP 满足此能力需求, 选择最空闲的 MRFP处理此资源能力请求。
图 2 中最空闲的为 MRFP1 , 此时可以避免 MRFC随机分发, 导致各个 MRFP之间资源负载不均衡。
步骤 205-214: MRFP1收到资源操作请求之后进行处理,上报资源操作应 答与结果, MRFC将这些信息上传给资源请求实体(此处为 APP Server )。 在 操作 MRFP1的过程中 , 请求 MRFP服务时, MRFC动态减少保存的 MRFP1 的资源能力信息; 在资源释放时, MRFC动态增大保存的 MRFP1的资源能力 信息。
本发明实施例还公开一种媒体资源控制装置, 参见附图 3所示,该装置包 括,
存储单元 601 , 用于保存各媒体资源处理装置的能力信息;
分配单元 602, 用于依据所述存储单元 601中保存的能力信息为资源操作 请求分配媒体资源处理装置;
更新单元 603 , 用于在每一次分配单元 602为资源操作请求分配媒体资源 处理装置或已分配的媒体资源处理装置被释放后,更新存储单元 601中的对应 媒体资源处理装置的能力信息。
该装置还可以包括初始化单元, 用于在媒体资源控制装置初始化时,通过 终端配置的数据获得媒体资源处理装置的能力信息,将所述能力信息提供给存 储单元。 初始化单元可以与存储单元 601合并在一起, 也可以单独设置。
该装置还可以包括审计单元,用于定期审计各媒体资源处理装置的能力信 息并根据审计结果更新所述存储单元保存的能力信息。 还可以包括接收单元, 用于接收各媒体资源处理装置上报的能力信息,并根据上报的能力信息更新所 述存储单元保存的能力信息。 审计单元和接收单元可以分别单独设置,也可以 合并设置, 也可以与更新单元 603合并在一起, 也可以三者合一, 依组网方式 不同,及成本等相关因素的考虑来设置,各种方式均应包括在本发明的保护范 围之内。 审计单元和接收单元不是必须同时具备的, 可以只配置其中的一个。
本发明实施例还公开一种媒体资源分配系统, 参见附图 4和附图 5所示, 该系统包括为媒体资源操作请求提供资源的媒体资源处理装置 72, 还包括为 媒体资源操作请求分配媒体资源处理装置的媒体资源控制装置 71 , 也可以还 包括提出需求的具体媒体资源需求实体 73 , 如宽带终端。 其中:
媒体资源控制装置 71 , 用于在每一次为资源操作请求分配媒体资源处理 装置或已分配的媒体资源处理装置被释放后,更新本地记录的对应媒体资源处 理装置的能力信息; 以及在每一次收到资源操作请求时,根据最近一次更新的 各媒体资源处理装置 72的能力信息为本次资源操作请求分配媒体资源处理装 置 72, 并将分配信息发送给对应的媒体资源处理装置 72。
参照附图 3或图 5所示, 媒体资源控制装置 71进一步还包括: 存储单元 601 , 用于保存各媒体资源处理装置 72的能力信息;
分配单元 602, 用于依据所述存储单元 601中保存的能力信息为资源操作 请求分配媒体资源处理装置 72;
更新单元 603 , 用于在每一次分配单元 602为资源操作请求分配媒体资源 处理装置 72或已分配的媒体资源处理装置 72被释放后, 更新存储单元 601 中的对应媒体资源处理装置 72的能力信息。
媒体资源控制装置 71可以还包括初始化单元, 用于在媒体资源控制装置 71初始化时, 通过终端配置的数据获得媒体资源处理装置 72的能力信息, 将 所述能力信息保存到存储单元 601。 初始化单元可以单独设置在媒体资源控制 装置 71内, 也可以与存储单元 601合并设置。
为了防止 MRFC (媒体资源控制装置 71的一种)与 MRFP (媒体资源处 理装置 72的一种)上具体资源状态的信息不一致, 换而言之, 即是为了动态 更新 MRFC上保存的能力信息, MRFC与 MRFP之间可以通过下列方式保持 信息状态的同步:媒体资源控制装置 71定期审计各媒体资源处理装置 72的能 力消息;或者各媒体资源处理装置 72定期向媒体资源控制装置 71上4艮能力消 息。
媒体资源控制装置 71还可以包括审计单元, 用于定期审计各媒体资源处 理装置 72的能力信息并根据审计结果更新所述存储单元 601保存的能力信息; 审计单元可以单独设置, 也可以与更新单元 603合并在一起。
所述媒体资源处理装置 72还可以包括响应单元, 用于响应所述审计单元 的审计, 将媒体资源处理装置 72的能力信息发送给所述审计单元。
媒体资源处理装置 72还包括上报单元, 用于定期向媒体资源控制装置 71 上报能力信息;
媒体资源控制装置 71还可以包括接收单元, 用于接收各媒体资源处理装 置 72定期上报的能力信息, 并根据上报的能力信息更新所述存储单元 601保 存的能力信息。
媒体资源控制装置 71在处理收到的资源操作请求过程中, 动态更新所保 存的媒体资源处理装置 72的能力信息。 动态更新可以进一步描述为: 选择使 用媒体资源处理装置 72响应所述请求时, 减少所选择的媒体资源处理装置 72 的资源空闲信息; 选择释放媒体资源处理装置 72时, 增大所选择的媒体资源 处理装置 72的资源空闲信息。
下面对前述各实施例进行几点说明:
第一, 前面实施例中提到,在为资源操作请求分配媒体资源处理装置或已 分配的媒体资源处理装置被释放后, 更新媒体资源控制装置保存的能力信息。 可以理解,这种具体方式的目的是达到对媒体资源控制装置所保存的各媒体资 源控制装置的能力信息进行动态更新。除了上述具体方式可以实现动态更新所 保存的能力信息之外, 还有其他具体实现方式。 例如, 媒体资源控制装置还可 以定期审计各媒体资源处理装置的能力信息,并根据审计结果更新本地记录的 能力信息; 和 /或各媒体资源处理装置定期向媒体资源控制装置上报能力信息, 媒体资源控制装置根据各媒体资源处理装置上报的能力信息更新本地记录的 能力信息。本领域技术人员可以理解, 实现动态更新媒体资源控制装置所保存 的能力信息包括但不局限于上述三种具体方式, 而且,上述三种具体方式可以 单独使用, 也可以任意结合使用。
第二, 前面实施例中提到, 如果有多个媒体资源处理装置满足需求, 则选 择最空闲的或距离资源操作请求者最近的媒体资源处理装置处理。本领域技术 人员可以理解,还可以综合多种指标进行一种较为平衡的选择, 例如综合空闲 程度和距资源操作请求者的距离,通过平衡选择的方式选择出适当的媒体处理 装置处理。 总而言之, 如果有多个媒体资源处理装置满足需求, 则按照预定标 准选择其中的一个媒体资源处理装置处理。
第三, 前述实施例中提到,媒体资源控制装置在处理收到的资源操作请求 过程中, 动态更新所保存的媒体资源处理装置的能力信息。所述动态更新步骤 可以为: 选择使用媒体资源处理装置时, 减少所选择的媒体资源处理装置的资 源空闲信息; 选择释放媒体资源处理装置时, 增大所选择的媒体资源处理装置 的资源空闲信息。媒体资源处理装置不提供服务时,将其资源空闲信息设置为 无。此夕卜,媒体资源控制设备还可以定期审计各媒体资源处理装置的能力信息, 或者接收各媒体资源处理设备定期上报的能力信息 ,然后据此对所保存的能力 信息进行动态更新。
第四, 前面实施例提到,通过更新单元 603可以对存储单元 601保存的媒 体资源处理装置的能力信息进行及时更新;而通过审计单元或接收单元可以对 存储单元 601保存的媒体资源处理装置的能力信息进行周期更新。无论是及时 更新,还是周期更新,都可以达到对存储单元 601保存的媒体资源处理装置的 能力信息进行动态更新的目的。 因此, 审计单元、 接收单元和更新单元 603 不是必须同时具备的,可以只配置其中的一个,便可以对媒体资源处理装置中 保存的能力信息进行动态更新。 进一步, 如果为了达到更好的动态更新效果、 提高更新的准确性,可以将更新单元 603和审计单元结合在一起使用,或者将 更新单元 603和接收单元结合在一起使用,即将及时更新和周期更新结合在一 起使用。 为此, 可以将更新单元、 审计单元和接收单元概括为动态更新单元, 该动态更新单元用于动态更新存储单元 601 保存的媒体资源处理设备的能力 信息。 所述动态更新单元可以只包括审计单元、接收单元、 更新单元 603中的 任意一个, 也可以包括其中的任意两个或全部。
以上所述,仅为本发明的较佳实施例而已, 并非用于限定本发明的保护范 围。

Claims

权 利 要 求
1、 一种媒体资源分配方法, 其特征在于, 包括:
在收到资源操作请求时,根据保存的各媒体资源处理装置的能力信息为所 述资源操作请求分配媒体资源处理装置;以及动态更新所述保存的媒体资源处 理装置的能力信息。
2、 如权利要求 1所述的媒体资源分配方法, 其特征在于, 所述资源能力 信息包括资源空闲信息 ,所述动态更新所保存的各媒体资源处理装置的能力信 息具体包括:
将媒体资源处理装置分配给资源操作请求后,减少所述媒体资源处理装置 的资源空闲信息; 或者在已分配的媒体资源处理装置被释放后,增大所述媒体 资源处理装置的资源空闲信息。
3、 如权利要求 2所述的媒体资源分配方法, 其特征在于, 所述方法还包 括: 当所述媒体资源处理装置不提供服务时, 将其资源空闲信息设置为无, 不 再选择该媒体资源处理装置分配给资源操作请求。
4、 如权利要求 1所述的媒体资源分配方法, 其特征在于, 所述资源能力 信息包括资源占用信息,所述动态更新保存的各媒体资源处理装置的能力信息 具体包括:
在将媒体资源处理装置分配给资源操作请求后,增大该媒体资源处理装置 的资源占用信息;在已分配的媒体资源处理装置被释放后, 减少该媒体资源处 理装置的资源占用信息。
5、 如权利要求 1所述的媒体资源分配方法, 其特征在于, 所述根据保存 的各媒体资源处理装置的能力信息为所述资源操作请求分配媒体资源处理装 置具体包括:
在所述保存的各媒体资源处理装置的能力信息中,如果有能力信息满足所 述资源操作请求的需求,则为所述资源操作请求分配能力信息满足该需求的媒 体资源处理装置;反之, 则为所述资源操作请求分配当前最空闲的媒体资源处 理装置。
6、 如权利要求 1所述的媒体资源分配方法, 其特征在于, 所述根据保存 的各媒体资源处理装置的能力信息为所述资源操作请求分配媒体资源处理装 置具体包括:
在所述保存的各媒体资源处理装置的能力信息中,如果有能力信息满足所 述资源操作请求的需求,则为所述资源操作请求分配能力信息满足该需求的媒 体资源处理装置; 反之, 拒绝所述资源操作请求。
7、 如权利要求 5或 6所述的媒体资源分配方法, 其特征在于, 如果只有 一个媒体资源处理装置的能力信息满足所述资源操作请求的需求,则将所述资 源操作请求发送给该媒体资源处理装置处理;如果至少有两个媒体资源处理装 置的能力信息满足所述资源操作请求的需求 ,则按照预定标准选择一个媒体资 源处理装置处理。
8、 如权利要求 2、 3或 4所述的媒体资源分配方法, 其特征在于, 所述能 力信息还包括: 资源分类信息和 /或能力类型信息。
9、如权利要求 1至 6中任意一项所述的媒体资源分配方法,其特征在于, 所述动态更新保存的媒体资源处理装置的能力信息具体包括:
定期审计各媒体资源处理装置的能力信息并根据审计结果更新保存的媒 体资源处理装置的能力信息;
和 /或
接收各媒体资源处理装置定期上报的能力信息,根据所述上报的能力信息 更新保存的媒体资源处理装置的能力信息;
和 /或
在每一次为资源操作请求分配媒体资源处理装置或已分配的媒体资源处 理装置被释放后, 更新保存的对应媒体资源处理装置的能力信息。
10、如权利要求 1至 6中任意一项所述的媒体资源分配方法,其特征在于, 所述方法还包括:
在初始化时通过终端配置的数据获得各媒体资源处理装置的能力信息,并 保存所述获得的能力信息。
11、 一种媒体资源控制装置, 其特征在于, 包括:
存储单元, 用于保存各媒体资源处理装置的能力信息;
分配单元,用于依据所述存储单元中保存的能力信息为资源操作请求分配 媒体资源处理装置; 动态更新单元,用于动态更新所述存储单元保存的媒体资源处理装置的能 力信息。
12、 如权利要求 11所述的媒体资源控制装置, 其特征在于, 所述动态更 新单元具体包括:
审计单元, 用于定期审计各媒体资源处理装置的能力信息, 并^^据审计结 果更新所述存储单元保存的媒体资源处理装置的能力信息;
和 /或
接收单元, 用于接收各媒体资源处理装置定期上报的能力信息, 并根据所 述上报的能力信息更新所述存储单元保存的媒体资源处理装置的能力信息; 和 /或
更新单元,用于在每一次所述分配单元为资源操作请求分配媒体资源处理 装置或已分配的媒体资源处理装置被释放后 ,更新所述存储单元保存的对应媒 体资源处理装置的能力信息。
13、 如权利要求 11或者 12所述的媒体资源控制装置, 其特征在于, 所述 控制装置还包括:
初始化单元, 用于在所述媒体资源控制装置初始化时,通过终端配置的数 据获得各媒体资源处理装置的能力信息,并将所述能力信息保存到所述存储单 元。
14、一种媒体资源分配系统, 包括为媒体资源操作请求提供资源的各媒体 资源处理装置, 其特征在于, 还包括媒体资源控制装置, 用于在收到资源操作 请求时,根据当前保存的各媒体资源处理装置的能力信息为所述资源操作请求 分配媒体资源处理装置;以及动态更新所述保存的各媒体资源处理装置的能力 信息。
15、 如权利要求 14所述的媒体资源分配系统, 其特征在于, 所述媒体资 源控制装置包括:
存储单元, 用于保存各媒体资源处理装置的能力信息;
分配单元,用于依据所述存储单元中保存的能力信息为资源操作请求分配 媒体资源处理装置;
动态更新单元 , 动态更新所述存储单元中各媒体资源处理装置的能力信
16、 如权利要求 15所述的媒体资源分配系统, 其特征在于, 所述媒体资 源控制装置还包括初始化单元, 用于在所述媒体资源控制装置初始化时,通过 终端配置的数据获得媒体资源处理装置的能力信息,将所述能力信息保存到所 述存储单元。
17、 如权利要求 15或 16所述的媒体资源分配系统, 其特征在于, 所述动 态更新单元具体包括审计单元,用于定期审计各媒体资源处理装置的能力信息 并根据审计结果更新所述存储单元保存的能力信息;
所述媒体资源处理装置还包括响应单元, 用于响应所述审计单元的审计, 将媒体资源处理装置的能力信息发送给所述审计单元。
18、 如权利要求 15或 16所述的媒体资源分配系统, 其特征在于: 所述媒 体资源处理装置还包括上报单元, 用于定期向媒体资源控制装置上报能力信 所述媒体资源控制装置中的动态更新单元具体包括接收单元,用于接收各 媒体资源处理装置定期上报的能力信息,并根据所述上报的能力信息更新所述 存储单元保存的能力信息。
19、根据权利要求 15或 16所述的媒体资源分配系统, 其特征在于, 所述 媒体资源控制装置中的动态更新单元具体包括:
更新单元,用于在每一次所述分配单元为资源操作请求分配媒体资源处理 装置或已分配的媒体资源处理装置被释放后 ,更新所述存储单元保存的对应媒 体资源处理装置的能力信息。
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