WO2011157120A2 - 基站缓存的访问控制方法、装置及*** - Google Patents

基站缓存的访问控制方法、装置及*** 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
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Application number
PCT/CN2011/074952
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English (en)
French (fr)
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WO2011157120A3 (zh
Inventor
周涛
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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.)
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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/zh
Priority to CN201180000499.0A priority patent/CN102918880B/zh
Publication of WO2011157120A2 publication Critical patent/WO2011157120A2/zh
Publication of WO2011157120A3 publication Critical patent/WO2011157120A3/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/56Provisioning of proxy services
    • H04L67/563Data redirection of data network streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/56Provisioning of proxy services
    • H04L67/568Storing data temporarily at an intermediate stage, e.g. caching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/20Interfaces 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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  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Information Transfer Between Computers (AREA)
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Abstract

本发明公开一种基站缓存的访问控制方法、装置及***,涉及通信技术领域,提高了基站Cache的命中率。包括:源基站接收终端发送的携带有内容标识的请求消息;在所述源基站缓存中不存在与所述内容标识匹配的内容时,查找存放有与所述内容标识匹配的内容的目标基站;向所述目标基站发送携带有所述内容标识的请求消息。本发明实施例主要应用于在基站缓存上进行内容访问的处理中。

Description

基站緩存的访问控制方法、 装置及*** 技术领域
本发明涉及通信技术领域, 尤其涉及一种基站緩存的访问控制 方法、 装置及***。
背景技术
目前, 在基站上应用 Cache ( 网络信息緩存器)技术, 可以实现 将用户终端需要访问的远端服务器的内容緩存在基站的 Cache 中, 以达到提高用户的访问速度, 降低网络带宽的目 的。 例如, 在 LTE
( Long Term Evolution, 长 期 演 进 ) 、 WIMAX ( Worldwide Interoperability for Microwave Acce s s,全球微波互联接入 ) 等 ***无线通信***下的 eNodeb (演进型基站) 上可以直接应用 Cache技术; 或者, 在 UMTS( Universal Mobile Te 1 ecommun i ca t ions Sys tem,通用移动通信*** )、 TDS-CDMA( Time Division Synchronous
- CDMA, 时分同步 CDMA)、 CDMA ( Code D i v i s i on Mu 11 i p 1 e Ac ce s s , 码分多址 ) 等第三代无线通信***下的扁平化基站或者实现 G i Offload ( Gi接口卸载) 的基站中应用 Cache技术。
现有技术中, 以第三代无线通信***中的 UMTS制式为例, 上述 应用 Cache 技术的基站为用户提供内容緩存服务的流程如下: 假设 服务终端的当前基站为基站 A, 那么, 如果终端需要访问的内容在 基 占 A的 Cache 中没有匹酉己 J , 贝' J通过 Gi Offload ¾续 Internet 的内容服务器上获取访问内容; 如果终端需要访问的内容在基站 A 的 Cache 中匹配到, 则直接从基站 A的 Cache 中获取访问内容; 如 果终端需要访问的内容属于非 Offload 的业务类型, 则通过无线接 入网原有的路径, 由 RNC ( Radio Network Cont ro 11 er,无线网络控 制器) /xGSN访问 Internet 的内容服务器, 获取访问内容后, 再由 RNC推送内容到基站 A 的 Cache 上; 或者通过无线接入网原有的路 径, 访问 RNC的 Cache或 xGSN的 cache以获取访问内容, 获取访问 内容后, 再由 RNC推送内容到基站 A的 Cache上。
然而, 在现有的基站上部署 Cache 时, 单个基站所服务的用户 数通常比较少, 访问基站的离散度较高, 使得基站的 Cache 命中率 较低。 如果为了保证基站的 Cache 的命中率, 则需要为每个基站的 Cache配置较大容量的存储器, 进而增加了基站的硬件成本。
发明内容
本发明的实施例提供一种基站緩存的访问控制方法、 装置及***, 提 高了基站 Cache的命中率。
为达到上述目的, 本发明的实施例采用如下技术方案:
一方面, 提供一种基站緩存的访问控制方法, 包括:
源基站接收终端发送的携带有内容标识的请求消 , ;
在所述源基站緩存中不存在与所述内容标识匹配的内容时,查找存放 有与所述内容标识匹配的内容的目标基站;
向所述目标基站发送携带有所述内容标识的请求;肖 , 。
一方面, 提供一种通信装置, 包括:
接收单元, 用于接收终端发送的携带有内容标识的请求消 , ; 查找单元,用于在所述通信装置緩存中不存在与所述内容标识匹配的 内容时, 查找存放有与所述内容标识匹配的内容的目标基站;
发送单元, 用于向所述目标基站发送携带有所述内容标识的请求消 息。
另一方面, 提供一种分布式基站緩存***, 包括: 至少两个基站, 所 述基站上设有緩存;
所述基站用于接收终端发送的携带有内容标识的请求消息;在所述基 站緩存中不存在与所述内容标识匹配的内容时,查找存放有与所述内容标 识匹配的内容的目标基站;向所述目标基站发送携带有所述内容标识的请 求消息。
本发明实施例中, 多个基站的緩存进行共享, 当源基站接收到终端发 送的内容标识后,如果所述源基站緩存中不存在与所述内容标识匹配的内 容时, 则查找存放有与所述内容标识匹配的内容的目标基站, 并向所述目 标基站发送携带有所述内容标识的请求消息,以便于从所述目标基站获取 与所述内容标识匹配的内容。 亦即, 当终端在一个基站的緩存中没有获取 到内容时, 还可以从其他基站的緩存中进行获取, 与现有技术中, 单个基 站所服务的用户数比较少导致基站的緩存命中率较低相比,本发明实施例 提高了基站緩存的命中率, 并且不需要升级基站的緩存到较大的容量, 进 而降低了在基站上部署緩存的硬件要求。
附图说明
图 1为本发明实施例提供的一种基站緩存的访问控制方法的流程图; 图 2 为本发明实施例提供的另一种基站緩存的访问控制方法的流程 图;
图 3 为本发明实施例提供的又一种基站緩存的访问控制方法的流程 图;
图 4 为本发明实施例提供的再一种基站緩存的访问控制方法的流程 图;
图 5为本发明实施例提供的一种通信装置的第一种结构图;
图 6为本发明实施例提供的一种通信装置的第二种结构图;
图 7为本发明实施例提供的另一种通信装置的第一种结构图; 图 8为本发明实施例提供的另一种通信装置的第二种结构图; 图 9为本发明实施例提供的一种基站***的结构图;
图 1 0为本发明实施例提供的另一种基站***的结构图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进 行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的 范围。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进 行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的 范围。
如图 1所示, 本发明实施例提供一种基站緩存的访问控制方法, 该方 法由源基站执行, 包括:
101、 源基站接收终端发送的携带有内容标识的请求消 , ;
所述源基站为服务终端的当前基站。
102、 在所述源基站緩存中不存在与所述内容标识匹配的内容时, 查 找存放有与所述内容标识匹配的内容的目标基站;
所述目标基站为: 与所述源基站之间可以进行相互通信的基站。
例如, 所述源基站和目标基站均为一定区域内采用 Mesh (无线网格) 组网方式的基站。 采用 Mesh (无线网格) 组网方式的任意两个基站之间 均可以保持无线互联。
103、 向所述目标基站发送携带有所述内容标识的请求消息。
当目标基站接收到上述携带有所述内容标识的请求消息后,获取与所 述内容标识匹配的内容, 并发送给所述源基站, 源基站将所述内容发送给 所述终端。
本发明实施例提供应用场景中: 定义基站 Cache (緩存) 的命中率达 到 50%时, 需要存储器的容量为 3TB。假设在 100个基站中都需要提供相 同命中率的 Cache服务, 则采用现有技术时, 需要在 100个基站中总共部 署 300TB的存储器。 而采用本发明实施例提供的方法后, 可以将 3TB容量 的存储器分布在 100基站中, 亦即, 需要在 100 个基站中总共部署 3TB 的存储器。 从而, 有效降低了基站上部署緩存的硬件投资, 并且终端可以 访问上述 100个基站中任一个基站 Cache上的内容,亦即终端可共享上述 100个基站 Cache的内容, 从而, 达到和部署 300TB存储器相同的效果和 命中率。
可以看出,本发明实施例中,当源基站接收到终端发送的内容标识后, 如果所述源基站緩存中不存在与所述内容标识匹配的内容时,则查找存放 有与所述内容标识匹配的内容的目标基站,并向所述目标基站发送携带有 所述内容标识的请求消息,以便于从所述目标基站获取与所述内容标识匹 配的内容。 亦即, 当终端在一个基站的緩存中没有获取到内容时, 还可以 从其他基站的緩存中进行获取, 多个基站的緩存实现了共享。 与现有技术 中, 单个基站所服务的用户数比较少导致基站的緩存命中率较低相比, 本 发明实施例提高了基站緩存的命中率, 同时, 不需要升级基站的緩存到较 大的容量, 进而降低了在基站上部署緩存的硬件要求。
进一步地, 所述源基站和所述目标基站上还可以均保存有内容索引 表,所述内容索引表中包括存放在所述源基站緩存和所述目标基站緩存中 的所有内容的标识和任意一个内容标识对应的基站标识。
此时, 上述步骤 1 02中, 在所述源基站緩存中不存在与所述内容标识 匹配的内容时,查找存放有与所述内容标识匹配的内容的目标基站具体可 以采用如下实现方式:在所述源基站緩存中不存在与所述内容标识匹配的 内容时, 在内容索引表中查找与所述内容标识对应的目标基站标识。
特别地, 上述步骤 1 02中, 在所述源基站緩存中不存在与所述内容标 识匹配的内容时,如果在内容索引表中查找出至少两个与所述内容标识对 应的基站标识时,则从所述至少两个与所述内容标识对应的基站标识中任 选一个基站标识作为目标基站标识。
进一步地,为了保证源基站和目标基站上所保存的内容索引表的一致 性, 如果基站緩存中的内容发生了变更, 则需要在源基站和目标基站之间 进行内容索引表的同步。 特别地, 如图 2所示, 上述方法还可以包括步骤 1 04和 1 05中的至少一个:
1 04、 当所述源基站緩存中删除已有内容时, 在源基站保存的内容索 引表中删除已有内容标识, 并将变更后的内容索引表发送给目标基站, 以 指示目标基站将所述目标基站上保存的内容索引表同步变更为所述变更 后的内容索引表。
1 05、 当所述源基站緩存中增加新内容时, 在源基站保存的内容索引 表中增加新内容标识, 并将变更后的内容索引表发送给目标基站, 以指示 内容索引表。 另外, 本发明实施例中, 如果终端需要访问的内容在源基站的 Cache 中匹配到, 则直接从该源基站的 Cache中获取访问内容;
如果终端需要访问的内容在源基站的 Cache中没有匹配到,并且该源 基站也没有查找到存放有与所述内容标识匹配的内容的目标基站时,还可 以通过 Gi Offload继续到 Internet的内容服务器上获取访问内容;
如果终端需要访问的内容属于非 Offload的业务类型,则可以通过无 线接入网原有的路径, 由 MC ( Radio Network Control ler,无线网络控 制器) /xGSN访问 Internet 的内容服务器, 获取访问内容后, 再由 MC 推送内容到基站 A 的 Cache上; 或者, 如果终端需要访问的内容属于非 Offload 的业务类型, 还可以通过无线接入网原有的路径, 访问 MC 的 Cache或 xGSN的 cache以获取访问内容, 获取访问内容后, 再由 MC推 送内容到基站 A的 Cache上。
如图 3所示, 本发明实施例提供一种基站緩存的访问控制方法, 该方 法具体由目标基站执行, 包括:
301、 目标基站接收源基站发送的携带有内容标识的请求消 , 。
302、 在所述目标基站緩存中获取与所述内容标识匹配的内容。
303、 向所述源基站发送所述获取到的与所述内容标识匹配的内容, 以便于所述源基站将所述内容发送给终端。
本发明实施例中,目标基站接收源基站发送的携带有内容标识的请求 消息, 获取与所述内容标识匹配的内容, 并发送给所述源基站。 亦即, 当 终端在源基站的緩存中没有获取到内容时, 还可以从其他基站(例如目标 基站) 的緩存中进行获取, 多个基站的緩存实现了共享。 与现有技术中, 单个基站所服务的用户数比较少导致基站的緩存命中率较低相比,本发明 实施例提高了基站緩存的命中率, 同时, 不需要升级基站的緩存到较大的 容量, 进而降低了在基站上部署緩存的硬件要求。
进一步地, 所述源基站和所述目标基站上均保存有内容索引表, 所述 内容索引表中包括存放在所述源基站緩存和所述目标基站緩存中的所有 内容的标识和任一内容标识对应的基站标识。
进一步地, 可选的, 如图 4所示, 该方法还包括步骤 304和 305 中的 至少一个:
304、 目标基站接收源基站发送的变更后的内容索引表, 所述变更后 的内容索引表为所述源基站在所述源基站保存的内容索引表中删除已有 内容标识后得到;并将所述目标基站上保存的内容索引表同步变更为所述 变更后的内容索引表。从而, 使得源基站上保存的内容索引表与目标基站 上保存的内容索引表保持一致。
305、 目标基站接收源基站发送的变更后的内容索引表, 所述变更后 的内容索引表为所述源基站在所述源基站保存的内容索引表中增加新内 容标识后得到;并将所述目标基站上保存的内容索引表同步变更为所述变 更后的内容索引表。从而, 使得源基站上保存的内容索引表与目标基站上 保存的内容索引表保持一致。
如图 5所示, 本发明实施例提供一种通信装置, 该通信装置具体为源 基站, 包括: 接收单元 1 1 , 查找单元 1 2和发送单元 1 3。
其中, 接收单元 1 1 , 用于接收终端发送的携带有内容标识的请求消 息;
查找单元 1 2 , 用于在所述通信装置緩存中不存在与所述内容标识匹 配的内容时, 查找存放有与所述内容标识匹配的内容的目标基站;
发送单元 1 3 , 用于向所述目标基站发送携带有所述内容标识的请求 消息。
本实施例将服务终端的当前基站称之为源基站,当源基站接收到终端 发送的内容标识后,如果所述源基站緩存中不存在与所述内容标识匹配的 内容时, 则查找存放有与所述内容标识匹配的内容的目标基站, 并向所述 目标基站发送携带有所述内容标识的请求消息,以便于从所述目标基站获 取与所述内容标识匹配的内容。 亦即, 当终端在一个基站的緩存中没有获 取到内容时, 还可以从其他基站的緩存中进行获取, 多个基站的緩存实现 了共享。 与现有技术中, 单个基站所服务的用户数比较少导致基站的緩存 命中率较低相比, 本发明实施例提高了基站緩存的命中率, 同时, 不需要 升级基站的緩存到较大的容量, 进而降低了在基站上部署緩存的硬件要 求。 进一步地, 所述通信装置和所述目标基站上均保存有内容索引表, 所 述内容索引表中包括存放在所述通信装置緩存和所述目标基站緩存中的 所有内容的标识和任一内容标识对应的基站标识。
所述查找单元 1 2具体用于在所述通信装置緩存中不存在与所述内容 标识匹配的内容时,在内容索引表中查找与所述内容标识对应的目标基站 标识。
进一步地, 所述查找单元 1 2具体用于在所述通信装置緩存中不存在 与所述内容标识匹配的内容时,且在内容索引表中查找出至少两个与所述 内容标识对应的基站标识时,从所述至少两个与所述内容标识对应的基站 标识中任选一个基站标识作为目标基站标识。
进一步地,为了保证源基站和目标基站上所保存的内容索引表的一致 性, 如果基站緩存中的内容发生了变更, 则需要在源基站和目标基站之间 进行内容索引表的同步。 如图 6所示, 上述通信装置还可以包括: 第一同 步单元 1 4和第二同步单元 1 5 中的至少一个。
第一同步单元 1 4 , 用于当所述通信装置緩存中删除已有内容时, 在 所述源基站保存的所述内容索引表中删除已有内容标识,并将变更后的内 容索引表发送给目标基站,以指示所述目标基站将所述目标基站上保存的 第二同步单元 1 5 , 用于当所述通信装置緩存中增加新内容时, 在所 述源基站保存的所述内容索引表中增加新内容标识,并将变更后的内容索 引表发送给目标基站,以指示所述目标基站将所述目标基站上保存的内容 如图 7所示, 本发明实施例提供另一种通信装置, 该通信装置具体为 目标基站, 包括: 接收单元 2 1 , 获取单元 2 2和发送单元 2 3。
其中, 接收单元 2 1 , 用于接收源基站发送的携带有内容标识的请求 消息;
获取单元 22 , 用于在目标基站緩存中获取与所述内容标识匹配的内 谷,
发送单元 2 3 , 用于向所述源基站发送所述获取到的与所述内容标识 匹配的内容。
本发明实施例中,目标基站接收源基站发送的携带有内容标识的请求 消息, 获取与所述内容标识匹配的内容, 并发送给所述源基站。 亦即, 当 终端在源基站的緩存中没有获取到内容时, 还可以从其他基站(例如目标 基站) 的緩存中进行获取, 多个基站的緩存实现了共享。 与现有技术中, 单个基站所服务的用户数比较少导致基站的緩存命中率较低相比,本发明 实施例提高了基站緩存的命中率, 同时, 不需要升级基站的緩存到较大的 容量, 进而降低了在基站上部署緩存的硬件要求。
进一步地, 所述通信装置和所述源基站上均保存有内容索引表, 所述 内容索引表中包括存放在所述通信装置緩存和所述目标基站緩存中的所 有内容的标识和任一内容标识对应的基站标识。
进一步地,为了保证源基站和目标基站上所保存的内容索引表的一致 性, 如果基站緩存中的内容发生了变更, 则需要在源基站和目标基站之间 进行内容索引表的同步。 如图 8所示, 上述通信装置还可以包括: 第一同 步单元 24和第二同步单元 25 中的至少一个。
第一同步单元 24 , 用于当所述通信装置緩存中删除已有内容时, 在 所述源基站保存的所述内容索引表中删除已有内容标识,并将变更后的内 容索引表发送给所述目标基站,以指示所述目标基站将所述目标基站上保 第二同步单元 25 , 用于当所述源基站緩存中增加新内容时, 在所述 源基站保存的所述内容索引表中增加新内容标识,并将变更后的内容索引 表发送给所述目标基站,以指示所述目标基站将所述目标基站上保存的内 如图 9所示, 本发明实施例还提供一种基站***, 包括: 源基站 32 和目标基站 33 , 所述源基站 32和目标基站 33上均设有緩存;
所述源基站 32 , 用于接收终端发送的携带有内容标识的请求消息; 在所述源基站緩存中不存在与所述内容标识匹配的内容时,查找存放有与 所述内容标识匹配的内容的目标基站;向所述目标基站发送携带有所述内 容标识的请求消息,以便于从所述目标基站获取与所述内容标识匹配的内 容, 并将所述内容发送给所述终端;
所述目标基站 33 , 用于接收所述源基站发送的携带有所述内容标识 的请求消息, 在所述目标基站緩存中获取与所述内容标识匹配的内容, 并 将所述获取到的内容发送给所述源基站。
如图 1 0所示, 每个基站均有可能成为源基站 32或目标基站 33 , 例 如, 图 1 0中的基站 3为源基站 32 , 基站 2为目标基站 33时, 如果基站 3 接收终端 31发送的携带有内容标识的请求消息; 在所述基站 3緩存中不 存在与所述内容标识匹配的内容时,查找存放有与所述内容标识匹配的内 容的目标基站 33 (图 1 0中的基站 2) ; 则基站 3向基站 2发送携带有所述 内容标识的请求消息, 基站 3根据所述携带有所述内容标识的请求消息, 从基站 3的緩存中获取所述内容标识匹配的内容, 并发送给基站 3 , 由基 站 3转发给终端 31。
可以看出, 当基站接收到终端发送的内容标识后, 如果所述基站緩存 中不存在与所述内容标识匹配的内容时,则查找存放有与所述内容标识匹 配的内容的目标基站,并向所述目标基站发送携带有所述内容标识的请求 消息, 以便于从所述目标基站获取与所述内容标识匹配的内容。 亦即, 当 终端在一个基站的緩存中没有获取到内容时,还可以从其他基站的緩存中 进行获取, 多个基站的緩存实现了共享。 与现有技术中, 单个基站所服务 的用户数比较少导致基站的緩存命中率较低相比,本发明实施例提高了基 站緩存的命中率, 同时, 不需要升级基站的緩存到较大的容量, 进而降低 了在基站上部署緩存的硬件要求。
进一步地, 所述源基站 32和目标基站 33上均保存有内容索引表, 所 述内容索引表中包括存放在所述每个基站緩存中的所有内容的标识和任 一内容标识对应的基站标识。
具体地,将一定区域内采用 Me sh组网方式的基站组成一个基站***。 进一步的, 所述源基站 32具体用于在所述源基站緩存中不存在与所 述内容标识匹配的内容时,在内容索引表中查找与所述内容标识对应的目 标基站标识。
进一步的, 所述源基站 32具体用于当所述源基站緩存中删除已有内 容时, 在所述源基站保存的所述内容索引表中删除已有内容标识, 并将变 更后的内容索引表发送给所述目标基站,以指示所述目标基站将所述目标 所述目标基站 3 3具体用于接收源基站发送的变更后的内容索引表, 所述变更后的内容索引表为所述源基站在所述源基站保存的内容索引表 中删除已有内容标识后得到;并将所述目标基站上保存的内容索引表同步 变更为所述变更后的内容索引表。
进一步的, 所述源基站 32具体用于当所述源基站緩存中增加新内容 时, 在所述源基站保存的所述内容索引表中增加新内容标识, 并将变更后 的内容索引表发送给所述目标基站,以指示所述目标基站将所述目标基站 所述目标基站 3 3具体用于接收源基站发送的变更后的内容索引表, 所述变更后的内容索引表为所述源基站在所述源基站保存的内容索引表 中增加新内容标识后得到;并将所述目标基站上保存的内容索引表同步变 更为所述变更后的内容索引表。
另外, 本发明实施例提供的基站可以为在 LTE、 WIMAX等***无线 通信***下的 eNodeb (演进型基站), 也可以为在 UMTS、 TD-SCDMA , CDMA 等第三代无线通信***下的扁平化基站或者实现 G i Of f l oad的基站。
本发明实施例主要应用于在基站緩存上进行内容访问的处理中,可以 提高基站 Ca che的命中率, 降低在基站上部署 Ca che的硬件要求。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明 的保护范围应以所述权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种基站緩存的访问控制方法, 其特征在于, 包括:
源基站接收终端发送的携带有内容标识的请求、肖 , ;
在所述源基站緩存中不存在与所述内容标识匹配的内容时, 查找存放 有与所述内容标识匹配的内容的目标基站;
向所述目标基站发送携带有所述内容标识的请求消息, 以便于从所述 目标基站获取与所述内容标识匹配的内容,并将所述内容发送给所述终端。
2、 根据权利要求 1所述的基站緩存的访问控制方法, 其特征在于, 所 述源基站和所述目标基站上均保存有内容索引表, 所述内容索引表中包括 存放在所述源基站緩存和所述目标基站緩存中的所有内容的标识和任一内 容标识对应的基站标识。
3、 根据权利要求 2所述的基站緩存的访问控制方法, 其特征在于, 所 述在所述源基站緩存中不存在与所述内容标识匹配的内容时, 查找存放有 与所述内容标识匹配的内容的目标基站包括:
在所述源基站緩存中不存在与所述内容标识匹配的内容时, 在内容索 引表中查找与所述内容标识对应的目标基站标识。
4、 根据权利要求 3所述的基站緩存的访问控制方法, 其特征在于, 所 述在所述源基站緩存中不存在与所述内容标识匹配的内容时, 在内容索引 表中查找与所述内容标识对应的目标基站标识包括:
在所述源基站緩存中不存在与所述内容标识匹配的内容时, 且在内容 索引表中查找出至少两个与所述内容标识对应的基站标识时, 从所述至少 两个与所述内容标识对应的基站标识中任选一个基站标识作为目标基站标 识。
5、 根据权利要求 2所述的基站緩存的访问控制方法, 其特征在于, 还 包括:
当所述源基站緩存中删除已有内容时, 在所述源基站保存的所述内容 索引表中删除已有内容标识, 并将变更后的内容索引表发送给所述目标基 站, 以指示所述目标基站将所述目标基站上保存的内容索引表同步变更为 所述变更后的内容索引表。
6、 根据权利要求 2所述的基站緩存的访问控制方法, 其特征在于, 还 包括:
当所述源基站緩存中增加新内容时, 在所述源基站保存的所述内容索 引表中增加新内容标识, 并将变更后的内容索引表发送给所述目标基站, 以指示所述目标基站将所述目标基站上保存的内容索引表同步变更为所述 变更后的内容索引表。
7、 一种基站緩存的访问控制方法, 其特征在于, 包括:
目标基站接收源基站发送的携带有内容标识的请求;肖 , ;
在所述目标基站緩存中获取与所述内容标识匹配的内容;
向所述源基站发送所述获取到的与所述内容标识匹配的内容, 以便于 所述源基站将所述内容发送给终端。
8、 根据权利要求 7所述的基站緩存的访问控制方法, 其特征在于, 所 述源基站和所述目标基站上均保存有内容索引表, 所述内容索引表中包括 存放在所述源基站緩存和所述目标基站緩存中的所有内容的标识和任一内 容标识对应的基站标识。
9、 根据权利要求 8所述的基站緩存的访问控制方法, 其特征在于, 还 包括:
目标基站接收源基站发送的变更后的内容索引表, 所述变更后的内容 索引表为所述源基站在所述源基站保存的内容索引表中删除已有内容标识 后得到; 引表。
1 0、 根据权利要求 8所述的基站緩存的访问控制方法, 其特征在于, 还包括:
目标基站接收源基站发送的变更后的内容索引表, 所述变更后的内容 索引表为所述源基站在所述源基站保存的内容索引表中增加新内容标识后 得到; 引表。 p
11、 一种通信装置, 其特征在于, 包括:
接收单元, 用于接收终端发送的携带有内容标识的请求消息; 查找单元, 用于在所述通信装置緩存中不存在与所述内容标识匹配的 内容时, 查找存放有与所述内容标识匹配的内容的目标基站;
发送单元,用于向所述目标基站发送携带有所述内容标识的请求消息, 以便于从所述目标基站获取与所述内容标识匹配的内容, 并将所述内容发 送给所述终端。
12、 根据权利要求 11所述的通信装置, 其特征在于, 所述通信装置和 所述目标基站上均保存有内容索引表, 所述内容索引表中包括存放在所述 通信装置緩存和所述目标基站緩存中的所有内容的标识和任一内容标识对 应的基站标只。
1 3、 根据权利要求 12所述的通信装置, 其特征在于, 所述查找单元具 体用于在所述通信装置緩存中不存在与所述内容标识匹配的内容时, 在内 容索引表中查找与所述内容标识对应的目标基站标识。
14、 根据权利要求 1 3所述的通信装置, 其特征在于, 所述查找单元具 体用于在所述通信装置緩存中不存在与所述内容标识匹配的内容时, 且在 内容索引表中查找出至少两个与所述内容标识对应的基站标识时, 从所述 至少两个与所述内容标识对应的基站标识中任选一个基站标识作为目标基 站标识。
15、 根据权利要求 12所述的通信装置, 其特征在于, 还包括: 第一同步单元, 用于当所述通信装置緩存中删除已有内容时, 在所述 源基站保存的所述内容索引表中删除已有内容标识, 并将变更后的内容索 引表发送给所述目标基站, 以指示所述目标基站将所述目标基站上保存的
16、 根据权利要求 12所述的通信装置, 其特征在于, 还包括: 第二同步单元, 用于当所述源基站緩存中增加新内容时, 在所述源基 站保存的所述内容索引表中增加新内容标识, 并将变更后的内容索引表发 送给所述目标基站, 以指示所述目标基站将所述目标基站上保存的内容索 引表同步变更为所述变更后的内容索引表。
1 7、 根据权利要求 1 1 -1 6任一项所述的通信装置, 其特征在于, 所述 通信装置具体为基站。
1 8、 一种通信装置, 其特征在于, 包括:
接收单元, 用于接收源基站发送的携带有内容标识的请求消息; 获取单元, 用于在目标基站緩存中获取与所述内容标识匹配的内容; 发送单元, 用于向所述源基站发送所述获取到的与所述内容标识匹配 的内容, 以便于所述源基站将所述内容发送给终端。
1 9、 根据权利要求 1 8所述的通信装置, 其特征在于, 所述源基站和所 述目标基站上均保存有内容索引表, 所述内容索引表中包括存放在所述源 基站緩存和所述目标基站緩存中的所有内容的标识和任一内容标识对应的 基站标识。
20、 根据权利要求 1 9所述的通信装置, 其特征在于, 还包括: 第一同步单元, 用于接收源基站发送的变更后的内容索引表, 所述变 更后的内容索引表为所述源基站在所述源基站保存的内容索引表中删除已 有内容标识后得到; 并将所述目标基站上保存的内容索引表同步变更为所 述变更后的内容索引表。
21、 根据权利要求 1 9所述的通信装置, 其特征在于, 还包括: 第二同步单元, 用于接收源基站发送的变更后的内容索引表, 所述变 更后的内容索引表为所述源基站在所述源基站保存的内容索引表中增加新 内容标识后得到; 并将所述目标基站上保存的内容索引表同步变更为所述 变更后的内容索引表。
22、 根据权利要求 1 8-21任一项所述的通信装置, 其特征在于, 所述 通信装置具体为目标基站。
2 3、 一种基站***, 其特征在于, 包括: 源基站和目标基站, 所述源 基站和目标基站上均设有緩存;
所述源基站, 用于接收终端发送的携带有内容标识的请求消息; 在所 述源基站緩存中不存在与所述内容标识匹配的内容时, 查找存放有与所述 内容标识匹配的内容的目标基站; 向所述目标基站发送携带有所述内容标 识的请求消息, 以便于从所述目标基站获取与所述内容标识匹配的内容, 并将所述内容发送给所述终端;
所述目标基站, 用于接收所述源基站发送的携带有所述内容标识的请 求消息, 在所述目标基站緩存中获取与所述内容标识匹配的内容, 并将所 述获取到的内容发送给所述源基站。
24、 根据权利要求 23所述的一种基站***, 其特征在于, 所述源基站 和目标基站上均保存有内容索引表, 所述内容索引表中包括存放在所述每 个基站緩存中的所有内容的标识和任一内容标识对应的基站标识。
25、 根据权利要求 23-24任一项所述的一种基站***, 其特征在于, 所述源基站与所述目标基站之间采用 Me sh (无线网格) 方式进行连接。
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