WO2011157120A2 - Procédé, dispositif et système de contrôle d'accès pour cache de nœud b - Google Patents

Procédé, dispositif et système de contrôle d'accès pour cache de nœud b Download PDF

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Publication number
WO2011157120A2
WO2011157120A2 PCT/CN2011/074952 CN2011074952W WO2011157120A2 WO 2011157120 A2 WO2011157120 A2 WO 2011157120A2 CN 2011074952 W CN2011074952 W CN 2011074952W WO 2011157120 A2 WO2011157120 A2 WO 2011157120A2
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WO
WIPO (PCT)
Prior art keywords
base station
content
identifier
index table
cache
Prior art date
Application number
PCT/CN2011/074952
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English (en)
Chinese (zh)
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WO2011157120A3 (fr
Inventor
周涛
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2011/074952 priority Critical patent/WO2011157120A2/fr
Priority to CN201180000499.0A priority patent/CN102918880B/zh
Publication of WO2011157120A2 publication Critical patent/WO2011157120A2/fr
Publication of WO2011157120A3 publication Critical patent/WO2011157120A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/563—Data redirection of data network streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • Base station cache access control method for device and system
  • the present invention relates to the field of communications technologies, and in particular, to an access control method, apparatus, and system for a base station cache.
  • the Cache Network Information Buffer
  • LTE Long Term Evolution
  • the flow of the base station applying the Cache technology to the user to provide the content cache service is as follows: Assume that the current base station of the service terminal is the base station A, then, if the terminal needs The content of the access is not in the Cache of the base A, and the access is obtained by the content server of the Internet through the Gi Offload 3 ⁇ 4; if the content that the terminal needs to access is matched in the Cache of the base station A, Obtaining the access content from the Cache of the base station A; if the content that the terminal needs to access belongs to the non-offload service type, the original path of the radio access network is adopted by the RNC (Radio Network Cont ro 11 er, radio network controller) / The content server of the Internet accessed by the xGSN obtains the content of the access, and then the content is pushed by the RNC to the Cache of the base station A; or accesses the cache of the RNC or the cache of
  • Embodiments of the present invention provide a method, an apparatus, and a system for access control of a base station cache, which improve a hit rate of a base station Cache.
  • an access control method for a base station cache including:
  • the source base station receives the request sent by the terminal carrying the content identifier
  • a communication device including:
  • a receiving unit configured to receive a request for carrying the content identifier sent by the terminal, and a searching unit, configured to: when the content of the communication device cache does not match the content identifier, search and store the content identifier The target base station of the matched content;
  • a sending unit configured to send, to the target base station, a request message that carries the content identifier.
  • a distributed base station cache system including: at least two base stations, where the base station is provided with a cache;
  • the base station is configured to receive a request message that is sent by the terminal and that carries the content identifier; when there is no content that matches the content identifier in the base station cache, the target base station that stores the content that matches the content identifier is searched; Sending a request message carrying the content identifier to the target base station.
  • the buffers of the multiple base stations are shared. After the source base station receives the content identifier sent by the terminal, if the content matching the content identifier does not exist in the source base station cache, the search and storage are performed. The content identifies a target base station of the matched content, and the target base station The target base station sends a request message carrying the content identifier to facilitate obtaining content matching the content identifier from the target base station. That is, when the terminal does not obtain the content in the buffer of one base station, it can also obtain the information from the cache of the other base station. Compared with the prior art, the number of users served by the single base station is relatively small, resulting in a cache hit rate of the base station. In the low aspect, the embodiment of the present invention improves the hit rate of the base station cache, and does not need to upgrade the cache of the base station to a larger capacity, thereby reducing the hardware requirement for deploying the cache on the base station.
  • FIG. 1 is a flowchart of a method for controlling access control of a base station cache according to an embodiment of the present invention
  • FIG. 2 is a flowchart of another access control method for a base station cache according to an embodiment of the present invention
  • FIG. 3 is a flowchart of still another method for access control of a base station cache according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of still another access control method for a base station cache according to an embodiment of the present invention.
  • FIG. 5 is a first structural diagram of a communication apparatus according to an embodiment of the present invention.
  • FIG. 6 is a second structural diagram of a communication device according to an embodiment of the present invention.
  • FIG. 7 is a first structural diagram of another communication apparatus according to an embodiment of the present invention
  • FIG. 8 is a second structural diagram of another communication apparatus according to an embodiment of the present invention
  • FIG. 10 is a structural diagram of another base station system according to an embodiment of the present invention.
  • an embodiment of the present invention provides a method for controlling access of a base station cache, where the method is performed by a source base station, including:
  • the source base station receives, by the terminal, a request for carrying the content identifier, where
  • the source base station is a current base station of the serving terminal.
  • the target base station is: a base station that can communicate with the source base station.
  • the source base station and the target base station are base stations in a certain area using a Mesh (Wireless Grid) networking mode.
  • Wireless interconnection can be maintained between any two base stations in the Mesh (wireless mesh) networking mode.
  • the target base station After receiving the request message carrying the content identifier, the target base station acquires content that matches the content identifier, and sends the content to the source base station, where the source base station sends the content to the terminal.
  • the embodiment of the present invention provides an application scenario: when the hit rate of the base station Cache is reached to 50%, the required memory capacity is 3 TB. Assuming that Cache services of the same hit rate are required in 100 base stations, a total of 300 TB of memory needs to be deployed among 100 base stations when using the prior art. With the method provided by the embodiment of the present invention, a 3TB capacity memory can be distributed in 100 base stations, that is, a total of 3TB of memory needs to be deployed in 100 base stations. Therefore, the hardware investment of deploying the cache on the base station is effectively reduced, and the terminal can access the content on the Cache of any one of the 100 base stations, that is, the terminal can share the content of the 100 base station Caches, thereby achieving and deploying 300 TB of memory. The same effect and hit rate.
  • the embodiment of the present invention after the source base station receives the content identifier sent by the terminal, if there is no content matching the content identifier in the cache of the source base station, the content identifier is searched and stored.
  • the target base station of the matched content and sent to the target base station The content identifier request message is configured to obtain content matching the content identifier from the target base station. That is, when the terminal does not obtain content in the buffer of one base station, it can also acquire from the cache of other base stations, and the caches of the multiple base stations are shared.
  • the embodiment of the present invention improves the hit rate of the base station cache, and does not need to upgrade the cache of the base station to a larger one. Capacity, which in turn reduces the hardware requirements for deploying caches on the base station.
  • the source base station and the target base station may further store a content index table, where the content index table includes identifiers and arbitrary contents of all contents stored in the source base station cache and the target base station cache.
  • the target base station that stores the content that matches the content identifier may specifically adopt the following implementation manner:
  • the target base station identifier corresponding to the content identifier is searched in the content index table.
  • step 102 when there is no content matching the content identifier in the source base station cache, if at least two base station identifiers corresponding to the content identifier are found in the content index table, And selecting, by the at least two base station identifiers corresponding to the content identifier, a base station identifier as the target base station identifier.
  • the above method may further include at least one of steps 1 04 and 156:
  • the existing content identifier is deleted in the content index table saved by the source base station, and the changed content index table is sent to the target base station to indicate that the target base station is to be used.
  • the content index table stored on the target base station is synchronously changed to the changed content index table.
  • a new content identifier is added to the content index table saved by the source base station, and the changed content index table is sent to the target base station to indicate the content index table.
  • the access content is directly obtained from the Cache of the source base station;
  • the content server can continue to the Internet through the Gi Offload. Get access to content;
  • the original content of the wireless access network can be accessed by the MC (Radio Network Controller)/xGSN to access the content server of the Internet. Then, the MC pushes the content to the Cache of the base station A.
  • the Cache of the MC or the cache of the xGSN may be accessed through the original path of the wireless access network. After accessing the content and obtaining the access content, the MC pushes the content to the Cache of the base station A.
  • an embodiment of the present invention provides an access control method for a base station cache, where the method is specifically performed by a target base station, including:
  • the target base station receives a request for sending the content identifier sent by the source base station.
  • the target base station receives the request message carrying the content identifier sent by the source base station, and obtains content that matches the content identifier, and sends the content to the source base station. That is, when the terminal does not obtain the content in the buffer of the source base station, it can also acquire from the cache of other base stations (for example, the target base station), and the caches of the plurality of base stations are shared.
  • the number of users served by a single base station is relatively small, resulting in a lower cache hit rate of the base station.
  • the embodiment of the present invention improves the hit rate of the base station cache, and does not need to upgrade the cache of the base station to a larger one. Capacity, which in turn reduces the hardware requirements for deploying caches on the base station.
  • a content index table is stored on the source base station and the target base station, and the content index table includes an identifier and any content of all contents stored in the source base station cache and the target base station cache. Identify the corresponding base station identifier.
  • the method further includes the steps in steps 304 and 305. at least one:
  • the target base station receives the changed content index table sent by the source base station, where the changed content index table is obtained after the source base station deletes the existing content identifier in the content index table saved by the source base station;
  • the content index table stored on the target base station is synchronously changed to the changed content index table. Thereby, the content index table saved on the source base station is kept consistent with the content index table saved on the target base station.
  • the target base station receives the changed content index table sent by the source base station, where the changed content index table is obtained by adding, by the source base station, a new content identifier in a content index table saved by the source base station;
  • the content index table stored on the target base station is synchronously changed to the changed content index table.
  • the content index table saved on the source base station is kept consistent with the content index table saved on the target base station.
  • an embodiment of the present invention provides a communication device, which is specifically a source base station, and includes: a receiving unit 1 1 , a searching unit 1 2 , and a sending unit 13 .
  • the receiving unit 1 1 is configured to receive, by the terminal, a request message that carries the content identifier.
  • the searching unit 1 2 is configured to: when there is no content matching the content identifier in the communication device cache, search for a target base station that stores content that matches the content identifier;
  • the sending unit 1 3 is configured to send, to the target base station, a request message that carries the content identifier.
  • the current base station of the serving terminal is referred to as a source base station.
  • the source base station receives the content identifier sent by the terminal, if the content matching the content identifier does not exist in the source base station cache, the search and storage are performed. And a target base station that matches the content identifier, and sends a request message carrying the content identifier to the target base station, so as to obtain content that matches the content identifier from the target base station. That is, when the terminal does not obtain content in the buffer of one base station, it can also acquire from the cache of other base stations, and the caches of the multiple base stations are shared.
  • the embodiment of the present invention improves the hit rate of the base station cache, and does not need to upgrade the cache of the base station to a larger one. Capacity, which in turn reduces the hardware requirements for deploying caches on the base station.
  • a content index table is stored on the communication device and the target base station, and the content index table includes an identifier and any content of all content stored in the communication device cache and the target base station cache. Identify the corresponding base station identifier.
  • the searching unit 120 is specifically configured to search for a target base station identifier corresponding to the content identifier in the content index table when there is no content matching the content identifier in the communication device cache.
  • the searching unit 12 is specifically configured to: when there is no content matching the content identifier in the cache of the communication device, and find at least two base stations corresponding to the content identifier in the content index table. When the identifier is selected, one of the at least two base station identifiers corresponding to the content identifier is selected as the target base station identifier.
  • the communication device may further include: at least one of the first synchronization unit 14 and the second synchronization unit 15 .
  • the first synchronization unit 14 is configured to delete the existing content identifier in the content index table saved by the source base station, and send the changed content index table, when the existing content is deleted in the cache of the communication device Giving the target base station to instruct the target base station to use the second synchronization unit 15 saved on the target base station to use the content index saved at the source base station when new content is added to the communication device cache A new content identifier is added to the table, and the changed content index table is sent to the target base station, to indicate that the target base station saves the content saved on the target base station, as shown in FIG. 7.
  • the embodiment of the present invention provides another communication.
  • the device is specifically a target base station, and includes: a receiving unit 2 1 , an obtaining unit 2 2 and a sending unit 23 .
  • the receiving unit 2 1 is configured to receive a request message that is sent by the source base station and carries the content identifier.
  • the obtaining unit 22 is configured to obtain, in the target base station cache, a valley matching the content identifier,
  • a sending unit 2 configured to send the acquired content identifier to the source base station Matching content.
  • the target base station receives the request message carrying the content identifier sent by the source base station, and obtains content that matches the content identifier, and sends the content to the source base station. That is, when the terminal does not obtain the content in the buffer of the source base station, it can also acquire from the cache of other base stations (for example, the target base station), and the caches of the plurality of base stations are shared.
  • the number of users served by a single base station is relatively small, resulting in a lower cache hit rate of the base station.
  • the embodiment of the present invention improves the hit rate of the base station cache, and does not need to upgrade the cache of the base station to a larger one. Capacity, which in turn reduces the hardware requirements for deploying caches on the base station.
  • a content index table is stored on the communication device and the source base station, and the content index table includes an identifier and any content of all content stored in the communication device cache and the target base station cache. Identify the corresponding base station identifier.
  • the above communication device may further include: at least one of the first synchronization unit 24 and the second synchronization unit 25.
  • the first synchronization unit 24 is configured to: when the existing content is deleted in the cache of the communication device, delete the existing content identifier in the content index table saved by the source base station, and send the changed content index table to
  • the target base station is configured to instruct the target base station to use the target base station to protect the second synchronization unit 25, where the content index table saved at the source base station is added when new content is added to the source base station cache.
  • the new content identifier is added, and the changed content index table is sent to the target base station to indicate that the target base station saves the target base station as shown in FIG. 9.
  • the embodiment of the present invention further provides a
  • the base station system includes: a source base station 32 and a target base station 33, and the source base station 32 and the target base station 33 are provided with a buffer;
  • the source base station 32 is configured to receive a request message that is sent by the terminal and that carries the content identifier. When the content that matches the content identifier does not exist in the source base station cache, the content that matches the content identifier is searched for. a target base station; transmitting, to the target base station, a request message carrying the content identifier, so as to obtain a match with the content identifier from the target base station And transmitting the content to the terminal;
  • the target base station 33 is configured to receive a request message that is sent by the source base station and that carries the content identifier, obtain content that matches the content identifier in the target base station cache, and obtain the content that is obtained. Sent to the source base station.
  • each base station may become the source base station 32 or the target base station 33.
  • the base station 3 in FIG. 10 is the source base station 32 and the base station 2 is the target base station 33, if the base station 3 receives the terminal 31.
  • the base station 2 transmits the request message carrying the content identifier to the base station 2, and the base station 3 acquires the content matched by the content identifier from the cache of the base station 3 according to the request message carrying the content identifier. And sent to the base station 3, which is forwarded by the base station 3 to the terminal 31.
  • the target base station storing the content matching the content identifier is searched for, and Sending a request message carrying the content identifier to the target base station, so as to obtain content matching the content identifier from the target base station. That is, when the terminal does not obtain content in the buffer of one base station, it can also acquire from the cache of other base stations, and the caches of multiple base stations are shared.
  • the embodiment of the present invention improves the hit rate of the base station cache, and does not need to upgrade the cache of the base station to a larger one. Capacity, which in turn reduces the hardware requirements for deploying caches on the base station.
  • the source base station 32 and the target base station 33 each have a content index table, where the content index table includes an identifier of all content stored in the cache of each base station and a base station identifier corresponding to any content identifier. .
  • a base station system using a Me sh networking mode in a certain area is formed into a base station system.
  • the source base station 32 is specifically configured to search for a target base station identifier corresponding to the content identifier in the content index table when there is no content matching the content identifier in the source base station cache.
  • the source base station 32 is specifically configured to delete the existing source base station cache And deleting the existing content identifier in the content index table saved by the source base station, and sending the changed content index table to the target base station, to instruct the target base station to target the target
  • the base station 33 is configured to receive the changed content index table sent by the source base station, where the changed content index table is obtained by deleting, by the source base station, the existing content identifier in the content index table saved by the source base station; And changing the content index table stored on the target base station to the changed content index table.
  • the source base station 32 is specifically configured to: when a new content is added to the source base station cache, add a new content identifier to the content index table saved by the source base station, and send the changed content index table.
  • the target base station is configured to instruct the target base station to use the target base station 3 3 of the target base station to receive the changed content index table sent by the source base station, where the changed content index table is the source And obtaining, by the base station, a new content identifier in the content index table saved by the source base station; and synchronizing the content index table saved on the target base station to the changed content index table.
  • the base station provided by the embodiment of the present invention may be an eNodeb (evolved base station) in a fourth generation wireless communication system such as LTE or WIMAX, or a third generation wireless communication system such as UMTS, TD-SCDMA, and CDMA.
  • a fourth generation wireless communication system such as LTE or WIMAX
  • a third generation wireless communication system such as UMTS, TD-SCDMA, and CDMA.
  • the embodiments of the present invention are mainly applied to the process of performing content access on the base station cache, which can improve the hit rate of the base station Ca che and reduce the hardware requirements for deploying the Ca che on the base station.

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

La présente invention concerne un procédé, un dispositif et un système de contrôle d'accès pour une cache de nœud B qui sont connexes au domaine de la technologie de communication et optimisent le rapport d'accès de la cache de nœud B. Le procédé comprend les étapes suivantes : un nœud source B reçoit un message de demande transmis par un terminal, le message de demande portant une identification de contenu ; lorsque le contenu qui correspond à l'identification de contenu n'existe pas dans la source cache de nœud B, le nœud source B recherche un nœud cible B qui stocke le contenu qui correspond à l'identification de contenu ; et le nœud source B transmet le message de demande qui porte l'identification de contenu au nœud cible B. Les modes de réalisation de la présente invention s'appliquent essentiellement au traitement de réalisation d'un accès de contenu sur la cache de nœud B.
PCT/CN2011/074952 2011-05-31 2011-05-31 Procédé, dispositif et système de contrôle d'accès pour cache de nœud b WO2011157120A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2011/074952 WO2011157120A2 (fr) 2011-05-31 2011-05-31 Procédé, dispositif et système de contrôle d'accès pour cache de nœud b
CN201180000499.0A CN102918880B (zh) 2011-05-31 2011-05-31 基站缓存的访问控制方法、装置及系统

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Application Number Priority Date Filing Date Title
PCT/CN2011/074952 WO2011157120A2 (fr) 2011-05-31 2011-05-31 Procédé, dispositif et système de contrôle d'accès pour cache de nœud b

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WO2011157120A2 true WO2011157120A2 (fr) 2011-12-22
WO2011157120A3 WO2011157120A3 (fr) 2012-05-03

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CN105357281A (zh) * 2015-10-19 2016-02-24 中国科学院信息工程研究所 一种移动接入网分布式内容缓存访问控制方法及系统

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CN104125559A (zh) * 2013-04-28 2014-10-29 华为终端有限公司 一种数据传输的方法、装置及系统
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CN105357281A (zh) * 2015-10-19 2016-02-24 中国科学院信息工程研究所 一种移动接入网分布式内容缓存访问控制方法及系统
CN105357281B (zh) * 2015-10-19 2019-06-21 中国科学院信息工程研究所 一种移动接入网分布式内容缓存访问控制方法及系统

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WO2011157120A3 (fr) 2012-05-03
CN102918880B (zh) 2016-06-01

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