WO2010017749A1 - Procédé et appareil pour négocier un algorithme de compression de données via une interface cx ou sh - Google Patents

Procédé et appareil pour négocier un algorithme de compression de données via une interface cx ou sh Download PDF

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Publication number
WO2010017749A1
WO2010017749A1 PCT/CN2009/073125 CN2009073125W WO2010017749A1 WO 2010017749 A1 WO2010017749 A1 WO 2010017749A1 CN 2009073125 W CN2009073125 W CN 2009073125W WO 2010017749 A1 WO2010017749 A1 WO 2010017749A1
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Prior art keywords
data
network element
compression algorithm
providing network
supported
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PCT/CN2009/073125
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English (en)
Chinese (zh)
Inventor
马春燕
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华为技术有限公司
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Publication of WO2010017749A1 publication Critical patent/WO2010017749A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/04—Protocols for data compression, e.g. ROHC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/24—Negotiation of communication capabilities

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for negotiating a data compression algorithm through a Cx or Sh interface. Background technique
  • HSS Home Subscriber Server
  • User Data User Data
  • HSS Home Subscriber Server
  • the HSS is a network database that supports user registration and stores user identity, location data, and trigger policy information.
  • the HSS is also responsible for user authentication and authorization control information for network access.
  • the service call control function S-CSCF uses the Cx interface from the HSS.
  • the S-CSCF sends a user registration/deregistration request message to the HSS;
  • SAA The HSS returns a user registration/logout response message to the S-CSCF, carrying the user's subscription data.
  • the user's subscription data is described in XML (extensible Markup Language) format.
  • the amount of data downloaded by Cx is related to the subscription data of the user, and the user data is encoded by XML, the amount of data is large, which causes the transmission to occupy a large amount of bandwidth resources, and the performance of the Cx interface is also affected.
  • the IMS service server AS obtains the user's subscription data flow (UDR/UDA, PUR/PUA) from the HSS using the Sh interface (Diameter protocol bearer) as follows: (I) The process of AS downloading subscription data and/or transparent data (transparent data, ie, HSS does not understand semantic data) from the HSS due to business processing needs
  • UDR The AS initiates a user data read request message to the HSS.
  • UDA The HSS returns a user data read response message to the AS, carrying the user's subscription data and transparent data.
  • the user's subscription data and transparent data are described in XML format.
  • PUR The AS initiates a user data update request message to the HSS, carrying transparent data, and the transparent data is described in an XML format;
  • PUA The HSS returns a user data update response message to the AS.
  • the amount of data downloaded by Sh is related to the subscription data of the user, and is also related to the amount of transparent data stored by the AS in the HSS. Since the amount of data is large by using the XML format encoding, the transmission consumes a large amount of bandwidth resources, Sh Interface performance is also affected. Summary of the invention
  • the technical problem to be solved by the embodiments of the present invention is to provide a method and a device for negotiating a data compression algorithm through a Cx or Sh interface, and the data exchange parties can dynamically negotiate a data compression mechanism to select a smarter and more appropriate process to avoid data configuration.
  • the complexity is to provide a method and a device for negotiating a data compression algorithm through a Cx or Sh interface, and the data exchange parties can dynamically negotiate a data compression mechanism to select a smarter and more appropriate process to avoid data configuration.
  • an embodiment of the present invention provides a method for negotiating a data compression algorithm through a Cx or Sh interface, including:
  • the data providing network element obtains a compression algorithm supported by the data request network element
  • the data providing network element determines whether it supports the compression algorithm, and if so, the negotiation is successful, and the data providing network element uses the compression algorithm to compress the data requested by the data requesting network element.
  • the data provides network elements, including:
  • An obtaining unit configured to acquire a compression algorithm supported by the data request network element;
  • a determining unit configured to determine whether the data providing network element supports the compression algorithm, and if yes, determining that the negotiation is successful;
  • a compression unit configured to compress the data requested by the data requesting network element by using a compression algorithm successfully negotiated.
  • the embodiment of the present invention further provides a system for transmitting data through a Cx or Sh interface, including: a data requesting network element, configured to send a data request to a data providing network element, where the data request carries data supported by the data requesting network element.
  • Compression algorithm
  • a data providing network element configured to obtain a compression algorithm supported by the data requesting network element, and determine whether the data is supported by the network, and if yes, the negotiation succeeds, and the data requested by the network element is requested by the compression algorithm. Compressing; and transmitting data to the data requesting network element.
  • the beneficial effects of the embodiments of the present invention are that the data exchange parties can select smarter and more appropriate processes according to actual conditions through dynamic negotiation, avoiding the complexity of data configuration and making the data interaction mechanism more flexible.
  • the dynamic negotiation method also makes it easy to re-consult the compression algorithm even if one of the data exchange parties changes, or the compressed data changes, thereby improving the applicability of the compression algorithm negotiation.
  • Figure la is a schematic diagram of transmitting user data through a Cx interface in the prior art
  • Figure lb is a schematic diagram of transmitting user data through the Sh interface in the prior art
  • FIG. 2 is a schematic flowchart of a method for negotiating a data compression algorithm according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of a specific implementation process of Embodiment 1 of the present invention
  • FIG. 4 is a schematic structural diagram of an apparatus for negotiating a data compression algorithm according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic flowchart of a method for data transmission according to Embodiment 3 of the present invention
  • FIG. 6 is a schematic diagram of a specific implementation process of Embodiment 3 of the present invention. detailed description
  • a first embodiment of the present invention provides a method for negotiating a data compression algorithm through a Cx or Sh interface, including:
  • the data providing network element obtains a compression algorithm supported by the data request network element
  • the data providing network element determines whether it supports the compression algorithm. If yes, the negotiation succeeds.
  • the data providing network element uses the compression algorithm to compress the data requested by the data requesting network element; otherwise, the negotiation fails, and the negotiation is not performed. compression.
  • the data providing network element acquires the data requesting network element to support the compression algorithm, and the data providing network element receives the request message sent by the data requesting network element, where the request message carries the compression algorithm supported by the data requesting network element.
  • the data providing network element and the data requesting network element support the compressed user data and the corresponding compression algorithm by using the compression indication parameter carried in the request message.
  • the data providing network element may also cache a data compression request algorithm supported by the network element with other interaction processes of the data requesting network element. Therefore, when the data provides subsequent compression data of the network element, the compression algorithm supported by the data requesting network element is used to negotiate the compressed data.
  • the data requesting network element is an S-CSCF or an AS
  • the data providing network element is an HSS.
  • the Feature-List-ID parameter of 3GPP TS29.229v8.L0 (separated in the Supported Features parameter) needs to be extended as a compression indication parameter, as shown in the following table:
  • the 2 ⁇ 3 compression indication optionally indicates whether the S-CSCF/HSS supports compressed user data and the corresponding compression algorithm.
  • the Feature-List-ID parameter extension feature bits 2 ⁇ 3 are used as compression indication bits to indicate whether the S-CSCF/HSS supports compressed user data and a corresponding compression algorithm, for example: 00: compression is not supported; 01: gzip Compression; 10: EXI compression; 11: Reserved.
  • the specific compression algorithm can be configured and extended as needed. The above definitions are only examples.
  • the Feature-List-ID parameter of 3GPP TS29.329v8.0.0 needs to be extended.
  • the process of the compression algorithm negotiated through the Cx interface is specifically:
  • the S-CSCF sends a SAR message to the HSS, which is extended by Supported in the message.
  • the Features parameter carries the specific compression algorithm supported by the S-CSCF.
  • the HSS learns the specific compression algorithm supported by the S-CSCF from the compression indication bit, and then determines whether it supports the corresponding compression algorithm. If yes, the compression algorithm carried in the message is used to perform the user data. Compressed, otherwise it is not compressed.
  • the HSS may select a compression algorithm to compress the data in the following manner: (1) Optionally, selecting one of the commonly supported compression algorithms; 2) Selecting based on a certain rule, the rule may be pre-configured, for example, according to a specific application scenario, pre-configuring a priority list of the compression algorithm in the HSS, when
  • the HSS When there are multiple compression algorithms supported by the HSS and the S-CSCF, the HSS will select according to the priority list. As shown in FIG. 3, when the data request unit is an AS, the process of negotiating the compression algorithm through the Sh interface is specifically:
  • the AS sends a UDR message to the HSS, and carries the specific compression algorithm supported by the AS through the extended Supported Features parameter in the message.
  • the message may specifically be a user data read request message.
  • the HSS learns the specific compression algorithm supported by the AS from the compression indication bit, and then determines whether it supports the corresponding compression algorithm. If yes, the compression algorithm carried in the message is used to compress the user data. Otherwise it is not compressed.
  • the HSS may select a compression algorithm to compress the data in the following manner: (1) Optional, that is, select one of the commonly supported compression algorithms; (2) Based on a certain rule, the rule may be pre-configured. For example, according to a specific application scenario, a priority list of the compression algorithm is configured in advance in the HSS. When there are multiple compression algorithms supported by the HSS and the AS, the HSS Select according to the priority list.
  • the HSS can obtain the compression algorithm supported by the S-CSCF/AS by configuring the negotiation result for the subsequent HSS-initiated update process (Cx interface PPR/PPA, Sh interface PNR/PNA). .
  • the data negotiation mode enables the data exchange parties to select a smarter and more appropriate process according to the actual situation, avoids the complexity of data configuration, and makes the data interaction mechanism more flexible.
  • the dynamic negotiation method also makes it easy to re-consider the compression algorithm even if one of the data exchange parties changes, or the compressed data changes, thereby improving the applicability of the compression algorithm negotiation.
  • a second embodiment of the present invention provides a data providing network element, including: an acquiring unit, configured to acquire a compression algorithm supported by a data requesting network element;
  • a determining unit configured to determine whether the data providing network element supports the compression algorithm, and if yes, determining that the negotiation is successful;
  • a compression unit configured to compress data requested by the data request network element by using a compression algorithm that is successfully negotiated.
  • the acquiring unit is specifically configured to obtain, from the request message sent by the received data requesting network element, a compression algorithm supported by the data requesting network element.
  • the device is a home subscription subscriber server HSS.
  • the data requesting network element may be an S-CSCF or an AS
  • the data providing network element may be an HSS.
  • the data negotiation mode enables the data exchange parties to select a smarter and more appropriate process according to the actual situation, avoids the complexity of data configuration, and makes the data interaction mechanism more flexible.
  • the dynamic negotiation method also makes it easy to re-consider the compression algorithm even if one of the data exchange parties changes, or the compressed data changes, thereby improving the applicability of the compression algorithm negotiation.
  • a third embodiment of the present invention provides a method for transmitting data through a Cx or Sh interface, including:
  • the data providing network element obtains a compression algorithm supported by the data request network element
  • the data providing network element determines whether it supports the compression algorithm. If yes, the negotiation is successful, and the data providing network element uses the compression algorithm to input data requested by the data request network element into the data providing network element. Transmitting the compressed data to the data requesting network element.
  • the data providing network element sends a message to the data requesting network element, where the message carries the compression algorithm and the compressed data;
  • the data providing network element sends a message to the data requesting network element, the message carrying data uncompressed indication and uncompressed data.
  • the HSS and the S-CSCF exchange the Cx interface, and the request message carries a compression indication parameter, for example, Feature- List-ID parameter, the Feature-List-ID parameter
  • a compression indication parameter for example, Feature- List-ID parameter, the Feature-List-ID parameter
  • the 2 ⁇ 3 bits of the number of flag bits are extended to a compression indicator bit, and the compression indicator bit is used to indicate whether the data providing network element and the data request network element support compressed user data and a corresponding compression algorithm.
  • the HSS and the AS interact through the Sh interface, and the request message carries a compression indication parameter, such as a Feature-List-ID parameter.
  • a compression indication parameter such as a Feature-List-ID parameter.
  • the 1-2 bits of the Feature-List-ID parameter are extended to a compression indication bit, and the compression indication bit is used to indicate whether the data providing network element and the data request network element support compressed user data and a corresponding compression algorithm.
  • the data requesting network element is an S-CSCF or an AS
  • the data providing network element is an HSS.
  • the process of data transmission through the Cx interface is specifically:
  • the S-CSCF sends a SAR message to the HSS, and carries the specific compression algorithm supported by the S-CSCF through the extended Supported Features parameter in the message.
  • the message may specifically be a user registration/logout request message.
  • the HSS learns the specific compression algorithm supported by the S-CSCF from the compression indication bit, and then determines whether it supports the corresponding compression algorithm. If yes, the compression algorithm carried in the message is used to perform the user data. Compressed, otherwise it is not compressed.
  • step 1-2 the data compression algorithm of the S-CSCF and the HSS has been negotiated. If the negotiation is successful, the HSS returns an SAA message to the S-CSCF, and the used compression algorithm and the compressed user data are carried in the message. If the negotiation fails, the HSS returns an SAA message to the S-CSCF, which carries the data uncompressed indication and the uncompressed data. It can be understood that the compression algorithm or data uncompressed indication carried in the message is embodied in the aforementioned compression indication bit.
  • the process of data transmission through the Sh interface is specifically:
  • the AS sends a UDR message to the HSS, and carries the specific compression algorithm supported by the AS through the extended Supported Features parameter in the message. 2. After receiving the message, the HSS learns the specific compression algorithm supported by the AS from the compression indication bit, and then determines whether it supports the corresponding compression algorithm. If yes, the compression algorithm carried in the message is used to compress the user data. Otherwise it is not compressed.
  • step 1-2 the AS and HSS data compression algorithms have been negotiated. If the negotiation is successful, the HSS returns a UDA message to the AS, and the message carries the used compression algorithm and the compressed user data. If the negotiation fails. Then, the HSS returns a UDA message to the AS, where the message carries the uncompressed data indication and the uncompressed data. It can be understood that the compression algorithm or data uncompressed indication carried in the message is embodied in the foregoing compression indication bit.
  • the data negotiation algorithm dynamically negotiates the data compression algorithm, so that the data exchange partners can select a smarter and more appropriate process according to the actual situation, avoid the complexity of data configuration, and make the data interaction mechanism more flexible.
  • the data is compressed and transmitted by the negotiated compression algorithm, which reduces the occupation of bandwidth resources by the Cx/Sh interface and improves the performance of the interface, especially for storage type network elements that often need to transmit large packets of data.
  • a fourth embodiment of the present invention provides a system for transmitting data through a Cx or Sh interface, including: a data requesting network element, configured to send a data request to a data providing network element, where the data request carries data supported by the data requesting network element. Compression algorithm
  • a data providing network element configured to obtain a compression algorithm supported by the data requesting network element, and determine whether the data is supported by the network, and if yes, the negotiation succeeds, and the data requested by the network element is requested by the compression algorithm. Compressing; and transmitting data to the data requesting network element according to the result of the negotiation.
  • the data providing network element is further configured to: if the negotiation is successful, send a message to the data requesting network element, where the message carries the compression algorithm and the compressed data; if the negotiation fails, the data is sent to the data The requesting network element sends a message carrying the data uncompressed indication and the uncompressed data.
  • the data requesting network element is a serving call control function S-CSCF or a service server AS
  • the data providing network element is a home subscription user server.
  • the data negotiation algorithm dynamically negotiates the data compression algorithm, so that the data exchange parties can select a smarter and more appropriate process according to the actual situation, avoid the complexity of data configuration, and make the data interaction mechanism more flexible.
  • the dynamic negotiation method also makes it possible to re-consider the compression algorithm even if one of the data exchange parties changes or the compressed data changes, thereby improving the applicability of the compression algorithm negotiation.
  • the data providing network element obtains a compression algorithm supported by the data request network element
  • the data providing network element determines whether the supporting algorithm supports the compression algorithm. If yes, the negotiation succeeds, and the data providing network element uses the compression algorithm to compress the data requested by the data requesting network element by using the storage medium mentioned above. It is a read-only memory, a disk or a disc.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un procédé et un appareil destinés à négocier un algorithme de compression de données via une interface Cx ou Sh, le procédé comportant les étapes suivantes : un élément de réseau fournissant des données acquiert l’algorithme de compression pris en charge par un élément de réseau requérant des données; l’élément de réseau fournissant des données détermine s’il prend en charge ledit algorithme de compression ou non; dans l’affirmative, la négociation a réussi et l’élément de réseau fournissant des données adopte ledit algorithme de compression afin de compresser les données requises par l’élément de réseau requérant des données. Un mode de réalisation de la présente invention concerne également un élément de réseau fournissant des données. La réalisation de la présente invention permet aux deux parties d’échanger des données de façon à sélectionner un parcours de circulation plus intelligent et plus approprié en fonction de la situation pratique par le biais d’une négociation dynamique, évitant ainsi la complexité de la configuration des données et rendant plus souple le mécanisme d’échange des données. La compression des données au moyen de l’algorithme de compression négocié est susceptible de réduire le taux d’occupation des ressources de bande passante de l’interface Cx/Sh et d’améliorer les performances de l’interface, et convient tout particulièrement aux éléments de réseau du type avec stockage transmettant fréquemment des paquets de données d’un volume important.
PCT/CN2009/073125 2008-08-12 2009-08-06 Procédé et appareil pour négocier un algorithme de compression de données via une interface cx ou sh WO2010017749A1 (fr)

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WO2021025605A1 (fr) * 2019-08-08 2021-02-11 Telefonaktiebolaget Lm Ericsson (Publ) Réduction de trafic de réseau

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CN102752795B (zh) * 2011-04-20 2015-09-30 华为终端有限公司 数据通信方法和数据通信服务节点
CN102447574B (zh) 2011-08-18 2014-03-12 杭州华三通信技术有限公司 一种实现irf设备零配置的方法及设备
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EP3113028B1 (fr) * 2014-04-30 2018-10-31 Huawei Technologies Co., Ltd. Procédé, dispositif et système d'interaction entre lecteurs de disque dur
CN104113557B (zh) * 2014-07-31 2017-12-22 中国联合网络通信集团有限公司 基于ims语音视频业务的用户接入位置管理方法及装置
CN107306444A (zh) * 2016-04-25 2017-10-31 中兴通讯股份有限公司 发送数据的方法及装置
CN117544986A (zh) * 2022-08-01 2024-02-09 中兴通讯股份有限公司 数据发送方法、装置及系统、存储介质及电子装置

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