WO2012088946A1 - 信息处理方法、域名服务器和接入路由器 - Google Patents

信息处理方法、域名服务器和接入路由器 Download PDF

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Publication number
WO2012088946A1
WO2012088946A1 PCT/CN2011/080725 CN2011080725W WO2012088946A1 WO 2012088946 A1 WO2012088946 A1 WO 2012088946A1 CN 2011080725 W CN2011080725 W CN 2011080725W WO 2012088946 A1 WO2012088946 A1 WO 2012088946A1
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WIPO (PCT)
Prior art keywords
domain name
aid
rid
query
asr
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PCT/CN2011/080725
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English (en)
French (fr)
Inventor
颜正清
张世伟
符涛
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中兴通讯股份有限公司
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Publication of WO2012088946A1 publication Critical patent/WO2012088946A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/09Mapping addresses
    • H04L61/10Mapping addresses of different types
    • H04L61/103Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/45Network directories; Name-to-address mapping
    • H04L61/4505Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/50Address allocation
    • H04L61/5084Providing for device mobility

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to an information processing method, a domain name server, and an access router.
  • the user first sends a domain name query message to the domain name server (DNS) according to the domain name of the communication peer when accessing the communication peer; the domain name server returns the IP corresponding to the domain name to the user. Address; then the user accesses the communication peer based on the IP address.
  • DNS domain name server
  • the current solution is to map the mapping between domain names and IP addresses on the user's device.
  • the mapping relationship between the domain name and the IP allows the user to find the location of the communication peer.
  • the IP in the existing network is ambiguous, that is, the IP represents both the identity of the communication peer and the location of the communication peer. If the communication peer moves, the mapping between the domain name and the IP address cached in the user's device will be invalid.
  • only the DNS information is cached in a single user device. When other users access the same communication peer, they still have to send. DNS query messages generate a lot of network traffic. Summary of the invention
  • the present invention provides an information processing method, a domain name server, and an access router, to solve the problem that the cached DNS information is invalidated when the communication peer moves, and when other users access the same communication peer. , do not need to send DNS query messages, thus avoiding a large amount of network traffic.
  • the present invention provides an information processing method, the method comprising:
  • the above information processing method can have the following characteristics:
  • the finding the AID of the communication peer according to the domain name of the communication peer includes:
  • the above information processing method may also have the following features:
  • the searching for the location identifier (RID) of the communication peer according to the AID includes: sending a query message to the identity identifier and the location registration register (ILR), where the ILR extracts the AID carried in the query message, and according to the The AID looks up the RID of the communication peer.
  • ILR location registration register
  • the above information processing method may also have the following features:
  • the domain name, the AID, and the RID are returned; if the RID is not found, the returning the domain name and the AID includes:
  • the ILR finds the RID, forwarding the domain name, the AID, and the RID to the ASR; if the ILR does not find the RID, forwarding the domain name and the AID to the ASR.
  • the above information processing method may also have the following features:
  • the domain name, the AID, and the RID are returned to the ASR; the ASR receives the domain name, the AID, and the RID, and caches the mapping relationship between the domain name and the AID and the mapping relationship between the AID and the RID. .
  • the above information processing method may also have the following features:
  • the ASR receives and caches a mapping relationship between the domain name and the AID.
  • the above information processing method may also have the following features:
  • the ASR caches the mapping relationship between the domain name and the AID and the mapping relationship between the AID and the RID, including: The ASR caches the mapping relationship between the domain name and the AID by using a domain name as an index; and caches the mapping relationship between the AID and the RID by using an AID as an index.
  • the above information processing method may also have the following features:
  • mapping relationship between the domain name and the AID of the ASR cache includes:
  • the ASR caches the mapping relationship between the domain name and the AID by using a domain name as an index.
  • the above information processing method may also have the following features:
  • the method further includes: the ASR returning, to the terminal device, a query message carrying a mapping relationship between the domain name and the AID.
  • the above information processing method may also have the following features:
  • the method further includes:
  • the terminal device caches a mapping relationship between the domain name and the AID.
  • the present invention provides a domain name server, which is applied to an identity identification and location separation network, and the domain name server includes:
  • a search module configured to: find an access identifier (AID) of the communication peer according to the domain name of the communication peer, and find a location identifier (RID) of the communication peer according to the AID; and
  • a forwarding module configured to: return the domain name, the AID, and the RID if the RID is found; and return the domain name and the AID if the RID is not found.
  • the above domain name server may have the following characteristics:
  • the search module includes:
  • the first searching unit is configured to: receive a query message forwarded by the access router (ASR), and find the AID according to the domain name carried in the query message.
  • ASR access router
  • the above domain name server may also have the following characteristics:
  • the search module includes:
  • the second search unit is configured to: send an inquiry message to the identity identifier and the location registration register (ILR), so that the ILR extracts the AID carried in the query message, and searches for the RID of the communication peer according to the AID.
  • the above domain name server may also have the following characteristics:
  • the forwarding module is further configured to: if the ILR finds the RID, forward the domain name, the AID, and the RID to the ASR; if the ILR does not find the RID, forward the location to the ASR Domain name and AID.
  • the above domain name server may also have the following characteristics:
  • the domain name server is provided with an identity and an address registration register (ILR).
  • ILR address registration register
  • the forwarding module is further configured to: if the RID is found, return the domain name, AID, and RID to the terminal device; if the RID is not found, return the domain name and the AID to the terminal device.
  • the present invention also provides an information processing method, which is applied to an identity identification and location separation network, and the method includes:
  • the query result includes a domain name, an access identifier (AID), and a location identifier (RID); or, a domain name and an AID; and forwarding, to the terminal device, a query response message carrying the domain name and the AID.
  • ILR identity and location registration register
  • the above information processing method can have the following characteristics:
  • the method further includes: returning the cache information to the terminal device when determining that there is locally cached information.
  • the above information processing method can have the following characteristics:
  • the query message is used to query a mapping relationship between a domain name and an AID, and the cache information includes a mapping relationship between a domain name and an AID.
  • the above information processing method can have the following characteristics:
  • the query result obtained by the obtaining and caching the domain name server and/or the identity and location registration register (ILR) according to the query message includes:
  • the above information processing method can have the following characteristics:
  • the terminal device And the forwarding, by the terminal device, the query response message carrying the domain name and the AID, if the query result includes the domain name, the AID, and the RID, deleting the RID, and forwarding the domain name to the terminal device And AID query response message;
  • the query response message carrying the domain name and the AID is forwarded to the terminal device.
  • the above information processing method can have the following characteristics:
  • the caching the query result includes:
  • the domain name is used as an index to cache the mapping relationship between the domain name and the AID; and the AID is used as an index to cache the mapping relationship between the AID and the RID;
  • the domain name is used as an index to cache the mapping relationship between the domain name and the AID.
  • the present invention provides an access router (ASR) for use in an identity identification and location separation network, the ASR comprising:
  • a forwarding module configured to: forward a query message sent by the terminal device
  • a processing module configured to: obtain and cache a query result returned by the domain name server and/or an identity identifier and a location registration register (ILR) according to the query message when determining local no cache information, where the query result includes a domain name, An access identifier (AID) and a location identifier (RID); or, a domain name and an AID; and forwarding, to the terminal device, a query response message carrying the domain name and the AID.
  • ILR location registration register
  • the above ASR can have the following characteristics:
  • the processing module is further configured to: when determining that there is local cache information, return the cache information to the terminal device.
  • the above ASR may also have the following characteristics:
  • the query message is used to query a mapping relationship between a domain name and an AID, and the cache information includes a mapping relationship between a domain name and an AID.
  • the processing module includes:
  • the cache unit is configured to: when the domain name server and the ILR are combined or set separately, obtain a query result returned by the domain name server and the ILR to the terminal device, and cache the query result.
  • the above ASR may also have the following characteristics:
  • the processing module includes:
  • the processing unit is configured to: if the query result includes the domain name, the AID, and the RID, delete the RID, and forward the query response message carrying the domain name and the AID to the terminal device; Including the domain name and the AID, the query response message carrying the domain name and the AID is forwarded to the terminal device.
  • the above ASR may also have the following characteristics:
  • the cache unit is further configured to: if the query result includes a domain name, an AID, and a location identifier RID, cache the mapping relationship between the domain name and the AID by using a domain name as an index; and cache the AID and the RID by using an AID as an index. If the query result includes the domain name and the AID, the domain name is used as an index to cache the mapping relationship between the domain name and the AID.
  • the above information processing method, the domain name server and the access router use the identity identifier and the location identifier to separate the superiority of the network, and based on the unique AID of the whole network, the identity information AID is extracted and the domain name is composed of the DNS information, which can be cached for a long time. Thereby solving the problem that the DNS information is invalid due to user movement.
  • FIG. 1 is a system architecture diagram of an identity identification and location separation network SILSN according to the present invention.
  • Embodiment 1 of an information processing method according to the present invention
  • FIG. 4 is a signaling diagram of interaction between a DNS and an ILR according to the present invention.
  • FIG. 5 is a schematic diagram of information carried by the ILR/DNS in returning a query response according to the present invention
  • FIG. 6 is a flowchart of Embodiment 2 of an information processing method according to the present invention
  • 7 is a schematic structural diagram of a domain name server according to the present invention
  • FIG. 8 is a schematic structural diagram of an access router according to the present invention.
  • the present invention proposes a Subscriber Identifier & Locator Separation Network (SILSN) architecture as shown in FIG. 1, which is an access router (Access Service Node). , ASR) and User Equipment (UE), Identity and Location Register (ILR) and Domain Name Server (DNS) and Authentication Center (AC).
  • the access routers ASR1 and ASR2 are used to access the user terminal devices UE1 and UE2, and are responsible for implementing access for the user terminal, and performing functions such as charging and switching.
  • the ILR assumes the user's location registration and identity recognition functions, and the AC assumes the user.
  • Access authentication function, UE1 and UE2 respectively have unique identity identifiers (Access Identification, AID) 1 and AID2.
  • the network has the following features: Each user in the network can only access after strict authentication. When sending each data packet, the user also carries its own real user access identifier AID, which is only assigned to the user. The entire network is unique. The data packets sent by users in various services always carry this identifier. Each data packet sent by the user must be verified by the access router ASR to ensure that the data packets sent by the user carry themselves. The access identity does not impersonate other users' AIDs to access the network, and this identifier will remain unchanged throughout the network. This identifier will not change when the user moves or switches.
  • FIG. 2 it is a flowchart of Embodiment 1 of an information processing method according to the present invention.
  • the method is implemented based on the foregoing SILSN architecture, and the method includes the following steps:
  • S200 Find an access identifier (AID) of the terminal device according to the domain name, and search for a location identifier (RID) of the terminal device according to the AID.
  • AID access identifier
  • RID location identifier
  • users UE1 and UE2 access the network through ASR1 and ASR2, respectively, and perform access authentication through the AC.
  • UE1 first uses UE2's Domain Name to query UE2's AID2.
  • ILR/DNS finds the corresponding AID2 according to the domain name, and then finds the location RID of UE2 according to the AID.
  • ILR/DNS returns domain name, AID2 and RID2 information to ASR1.
  • ASR1 caches the mapping between domain names and AID2 and the mapping between AID2 and RID2. Then, ASR1 sends the mapping relationship between the domain name and AID2 to the UE1 cache.
  • UE1 initiates communication to UE2 based on AID2.
  • the user AID since the user AID is unique across the entire network, this provides a prerequisite for the user to cache the mapping relationship between the AID and the domain name for a long time.
  • the method is combined with the identity identification and the location separation network, and utilizes the network uniqueness of the user AID to perform DNS information (namely domain name and AID) cache, and obtains the identity information AID of the communication peer end, and also acquires the location of the communication peer end.
  • Information RID is combined with the identity identification and the location separation network, and utilizes the network uniqueness of the user AID to perform DNS information (namely domain name and AID) cache, and obtains the identity information AID of the communication peer end, and also acquires the location of the communication peer end.
  • DNS information namely domain name and AID
  • the IP information has the ambiguity of identity and location, and it is impossible to cache for a long time.
  • the method utilizes the identity identifier and the location identifier to separate the superiority of the network.
  • the identity information AID is extracted and the domain name is composed of DNS information, which can be cached for a long time, thereby solving the DNS information caused by the user movement. The problem of failure.
  • FIG. 3 it is a flowchart of the DNS lookup process of the present invention.
  • the UE has access to the network, and needs to access the communication peer according to the domain name of the communication peer to initiate a DNS query to the ILR/DNS.
  • the ILR and the DNS are combined into one; the process includes the following steps:
  • the UE sends a DNS query message to the ILR/DNS according to the domain name of the communication peer that needs to be accessed.
  • the ASR intercepts the DNS query message sent by the UE, extracts the domain name of the communication peer, and searches for the mapping relationship between the domain name and the communication peer AID ⁇ DN, AID> in the ASR local cache. If the ASR has the cache of the above mapping relationship, the process proceeds to step S330. If the ASR does not have the cache of the mapping relationship locally, the process proceeds to step S330.
  • ASR returns the locally obtained ⁇ 0 ⁇ to the UE
  • the ILR/DNS receives the DNS query message from the UE, and extracts the domain name of the communication peer. And searching for the identity information AID of the communication peer according to the domain name of the communication peer; the ILR/DNS further searches for the location identifier RID of the communication peer according to the found AID;
  • ILR/DNS returns the search result to the UE. If the AID of the communication peer is not found, an error is returned; if the RID of the communication peer is not found, only the AID information is returned; if both the AID and the RID are found, the AID and RID information is returned;
  • ASR intercepts the DNS query response returned by ILR/DNS, extracts the AID information and the RID information, and locally relaxes the ⁇ DN, AID> mapping relationship and the ⁇ AID, RID> mapping relationship; it is because ASR is cached locally.
  • the ⁇ DN, AID> mapping relationship and the ⁇ AID, RID> mapping relationship are required to enable the multiple users to access the same terminal device without performing steps 330-370 repeatedly; thereby avoiding a large amount of network traffic;
  • the ASR deletes the RID in the DNS query response, reserves the AID, and sends a DNS query response message including the domain name and the AID to the UE.
  • FIG. 4 it is an interaction signaling diagram between the DNS and the ILR according to the present invention.
  • the ILR is deployed separately from the DNS, and the interaction process includes the following steps:
  • ASR forwards the user's DNS query message to the DNS, and queries the AID of the communication peer;
  • the DNS finds the AID of the communication peer according to the DN in the DNS query packet.
  • the DNS sends a DNS query response message to the ILR, and carries the DN and the AID.
  • the ILR receives the DNS query response message of the DNS, extracts the AID information therein, and queries the location information RID of the communication peer according to the AID;
  • the ILR sends a DNS response message to the ASR.
  • the DNS response message sent by the ILR does not include the RID; if the RID of the communication peer is queried, the DNS response message sent by the ILR includes the DN, the AID, and the RID.
  • FIG. 5 it is a schematic diagram of information carried by the ILR/DNS in response to the query, and the basic information carried by the DNS query response information includes a DN (Domain Name), an AID, and an RID.
  • DN Domain Name
  • AID AID
  • RID RID
  • the basic information carried in the DNS query response information only includes the DN and the AID, and does not include the location information RID of the communication peer.
  • ASR can process DNS query response information as follows:
  • the ASR uses the DN as the index cache ⁇ DN, AID> mapping relationship, and the AID as the index cache ⁇ AID, RID> mapping relationship.
  • FIG. 6 it is a flowchart of Embodiment 2 of the information processing method of the present invention.
  • the method is implemented based on an identity identifier and a location identifier separation network architecture.
  • the method includes:
  • the domain name server and the ILR search for the AID according to the domain name carried in the query message, and search for the RID according to the AID; if the RID is found, The query result returned to the terminal device includes the domain name, the AID, and the RID, and the ASR intercepts and caches the query result; if the RID is not found, the query result returned to the terminal device includes the domain name and the AID, ASR intercepts and caches the above query results; the detailed process can be seen in Figure 3;
  • the domain name server searches for the AID according to the domain name carried in the query message, and sends an inquiry response message to the ILR, where the ILR extracts the AID carried in the query response message, and Searching for the RID according to the AID; if the RID is found, the query result returned to the ASR includes the domain name, the AID, and the RID, and the ASR receives and caches the query result; if the RID is not found, the query returned to the ASR
  • the result includes the above domain name and AID, and the above ASR receives and caches the above query result; the detailed process can be seen in FIG. 4.
  • the RID is deleted, and Forwarding, by the terminal device, a query response message carrying the domain name and the AID; if the query result includes only the domain name and the AID, forwarding the query response message carrying the domain name and the AID to the terminal device.
  • the terminal device receives and caches the query response message carrying the domain name and the AID, so that the problem that the DNS information caused by the user movement is invalid can be solved.
  • the information processing method utilizes the superiority of the identity identifier and the location identifier to separate the network, and sends the obtained DNS information to the terminal device for long-term cache, thereby solving the problem that the DNS information caused by the user movement is invalid.
  • the domain name server includes a search module 71 and a forwarding module 72.
  • the search module is configured to search for an access identifier (AID) of the communication peer according to the domain name of the communication peer. And finding a location identifier (RID) of the communication peer according to the AID; and the forwarding module is configured to return the domain name, the AID, and the RID if the RID is found; if the RID is not found, Returns the domain name and AID.
  • AID access identifier
  • RID location identifier
  • the searching module may include a first searching unit, where the first searching unit may be configured to receive a query message forwarded by an access router (ASR), and find the AID according to the domain name carried in the query message.
  • the search module may further include a second search unit, where the second search unit may be configured to send a query message to the identity and location registration register (ILR), so that the ILR extracts the AID carried in the query message, and Finding the RID of the communication peer according to the AID.
  • ASR access router
  • ILR identity and location registration register
  • the forwarding module may be further configured to: if the ILR finds the RID, forward the domain name, the AID, and the RID to the ASR; if the ILR does not find the RID, go to the ASR. Forward the domain name and AID.
  • the domain name server may further be provided with an identity identifier and an address registration register (IRR), and the forwarding module may be further configured to: if the RID is found, return the domain name, the AID, and the RID to the terminal device. If the RID is not found, return the domain name and the AID to the terminal device.
  • IRR address registration register
  • the domain name server can solve the problem that the DNS information is invalid due to the user's movement.
  • the specific interaction process can be seen in Figure 3 and Figure 4, and is not described here.
  • the domain name server uses the identity identifier and the location identifier to separate the superiority of the network, and extracts the identity information AID and the domain name to form the DNS information for long-term cache on the basis of the unique AID of the whole network. Thereby solving the problem that the DNS information is invalid due to user movement.
  • the access router includes a forwarding module 81 and a processing module 82.
  • the forwarding module is configured to forward a query message sent by the terminal device
  • the processing module is configured to determine the local
  • the domain name server and/or the identity and location registration register (ILR) are obtained and cached according to the query result returned by the query message, and the query result includes a domain name, an access identifier (AID), and a location identifier ( RID); or, a domain name and an AID; and forwarding a query response message carrying the domain name and the AID to the terminal device.
  • ILR identity and location registration register
  • the processing module may be further configured to: when determining that the local cache information is available, return the cache information to the terminal device.
  • the query message is used to query a mapping relationship between a domain name and an AID, and the cache information includes a mapping relationship between a domain name and an AID.
  • the processing module may include a cache unit, where the cache unit may be configured to obtain a query returned by the domain name server and the ILR to the terminal device when the domain name server and the ILR are combined or set separately. As a result, the query result is cached. Further, if the query result includes a domain name, an AID, and a location identifier RID, the cache unit may be configured to cache the mapping relationship between the domain name and the AID by using a domain name as an index; and cache the AID and the RID by using an AID as an index. If the query result includes the domain name and the AID, the cache unit may be configured to cache the mapping relationship between the domain name and the AID by using the domain name as an index.
  • the processing module may further include a processing unit, where the processing unit may be configured to: if the query result includes a domain name, an AID, and an RID, delete the RID, and forward the carrying the domain name to the terminal device The query response message of the AID; if the query result includes only the domain name and the AID, forwarding the query response message carrying the domain name and the AID to the terminal device.
  • the access router uses the identity identifier and the location identifier to separate the network, and sends the obtained DNS information to the terminal device for long-term cache, thereby solving the problem that the DNS information caused by the user movement is invalid.
  • the embodiment of the present invention utilizes the identity identifier and the location identifier to separate the superiority of the network.
  • the identity information AID is extracted and the domain name is composed of the DNS information, which can be cached for a long time, thereby solving the user movement.

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Abstract

一种信息处理方法、域名服务器和接入路由器。信息处理方法包括:根据通信对端的域名查找到所述通信对端的接入标识(AID),并根据所述AID查找所述通信对端的位置标识(RID);以及若查找到所述RID,则返回所述域名、AID和RID;若未查找到所述RID,则返回所述域名和AID。上述信息处理方法、域名服务器和接入路由器,利用身份标识和位置标识分离网络的优越性,在全网AID唯一的基础上,将身份信息AID提取出与域名组成域名服务器(DNS)信息,可进行长期缓存,从而解决了用户移动而导致的DNS信息失效的问题。

Description

信息处理方法、 域名服务器和接入路由器
技术领域
本发明涉及移动通信领域, 尤其涉及一种信息处理方法、 域名服务器和 接入路由器。
背景技术
现有网络中, 由于 IP地址难以记忆, 用户在访问通信对端时, 首先根据 通信对端的域名向域名服务器(Domain Name Server, DNS )发送域名查询消 息; 域名服务器向用户返回与域名对应的 IP地址; 然后用户再根据该 IP地 址访问通信对端。
由于 DNS查询会造成大量的网络流量,因此目前的解决方案是在用户的 设备緩存域名与 IP地址的映射关系。
在上述方案中, 域名与 IP的映射关系可以让用户找到通信对端的位置。 但是现有网络中 IP具有二义性, 即 IP既代表通信对端的身份, 也代表通信 对端的位置。 如果通信对端发生移动, 用户的设备中緩存的域名与 IP地址的 映射关系就会失效; 另外, 只在单个用户设备中緩存 DNS信息, 当其它用户 访问相同的通信对端时, 依然要发送 DNS查询消息, 产生大量的网络流量。 发明内容
为了解决上述技术问题, 本发明提供了一种信息处理方法、 域名服务器 和接入路由器, 以解决通信对端发生移动导致緩存的 DNS信息失效的问题, 并且在其他用户访问相同的通信对端时, 不需要发送 DNS查询消息, 从而避 免产生大量的网络流量。
本发明提供了一种信息处理方法, 该方法包括:
根据通信对端的域名查找到所述通信对端的接入标识 (AID ) , 并根据 所述 AID查找所述通信对端的位置标识(RID ) ; 以及
若查找到所述 RID,则返回所述域名、 AID和 RID;若未查找到所述 RID, 则返回所述域名和 AID。
优选地, 上述信息处理方法可具有如下特点:
所述根据通信对端的域名查找到所述通信对端的 AID包括:
接收接入路由器 (ASR )转发的查询消息, 根据所述查询消息中携带的 域名查找到所述 AID。
优选地, 上述信息处理方法还可具有如下特点:
所述根据所述 AID查找所述通信对端的位置标识(RID ) 包括: 向身份标识和位置登记寄存器(ILR )发送查询消息, 所述 ILR提取出所 述查询消息中携带的 AID, 并根据所述 AID查找通信对端的 RID。
优选地, 上述信息处理方法还可具有如下特点:
若查找到所述 RID,则返回所述域名、 AID和 RID;若未查找到所述 RID, 则返回所述域名和 AID包括:
若所述 ILR查找到所述 RID,则向所述 ASR转发所述域名、 AID和 RID; 若所述 ILR未查找到所述 RID , 则向所述 ASR转发所述域名和 AID。
优选地, 上述信息处理方法还可具有如下特点:
所述若查找到所述 RID , 则返回所述域名、 AID和 RID包括:
若查找到所述 RID, 则向 ASR返回所述域名、 AID和 RID; 所述 ASR 接收所述域名、 AID和 RID,并緩存所述域名和 AID的映射关系以及所述 AID 和 RID的映射关系。
优选地, 上述信息处理方法还可具有如下特点:
所述若未查找到所述 RID, 则返回所述域名和 AID包括:
若未查找到所述 RID, 则向 ASR返回所述域名和 AID;
所述 ASR接收并緩存所述域名和 AID的映射关系。
优选地, 上述信息处理方法还可具有如下特点:
所述 ASR緩存所述域名和 AID的映射关系以及所述 AID和 RID的映射 关系包括: 所述 ASR以域名为索引緩存所述域名和 AID的映射关系; 以及, 以 AID 为索引緩存所述 AID和 RID的映射关系。
优选地, 上述信息处理方法还可具有如下特点:
所述 ASR緩存所述域名和 AID的映射关系包括:
所述 ASR以域名为索引緩存所述域名和 AID的映射关系。
优选地, 上述信息处理方法还可具有如下特点:
所述方法还包括:所述 ASR向所述终端设备返回携带所述域名和 AID的 映射关系的查询消息。
优选地, 上述信息处理方法还可具有如下特点:
在向所述终端设备返回查询消息之后, 所述方法还包括:
所述终端设备緩存所述域名和 AID的映射关系。
本发明提供了一种域名服务器, 应用于身份标识和位置分离网络, 所述 域名服务器包括:
查找模块, 其设置为: 根据通信对端的域名查找到所述通信对端的接入 标识(AID ) , 并根据所述 AID 查找所述通信对端的位置标识(RID ) ; 以 及
转发模块,其设置为:若查找到所述 RID,则返回所述域名、 AID和 RID; 若未查找到所述 RID , 则返回所述域名和 AID。
优选地, 上述域名服务器可具有如下特点:
所述查找模块包括:
第一查找单元, 设置为: 接收接入路由器(ASR )转发的查询消息, 根 据所述查询消息中携带的域名查找到所述 AID。
优选地, 上述域名服务器还可具有如下特点:
所述查找模块包括:
第二查找单元, 设置为: 向身份标识和位置登记寄存器(ILR )发送查询 消息, 以便所述 ILR提取出所述查询消息中携带的 AID, 并根据所述 AID查 找通信对端的 RID。 优选地, 上述域名服务器还可具有如下特点:
所述转发模块还设置为: 若所述 ILR查找到所述 RID, 则向所述 ASR转 发所述域名、 AID和 RID; 若所述 ILR未查找到所述 RID, 则向所述 ASR转 发所述域名和 AID。
优选地, 上述域名服务器还可具有如下特点:
所述域名服务器中设有身份标识和位置登记寄存器(ILR ) ,
所述转发模块还设置为: 若查找到所述 RID, 则向终端设备返回所述域 名、 AID和 RID; 若未查找到所述 RID, 则向所述终端设备返回所述域名和 AID。
本发明还提供了一种信息处理方法, 应用于身份标识和位置分离网络, 所述方法包括:
转发终端设备发送的查询消息;
在确定本地无緩存信息时, 获取并緩存域名服务器和 /或身份标识和位置 登记寄存器(ILR )根据所述查询消息返回的查询结果, 所述查询结果中包括 域名、 接入标识(AID )和位置标识(RID ); 或者, 域名和 AID; 以及向所 述终端设备转发携带所述域名和 AID的查询响应消息。
优选地, 上述信息处理方法可具有如下特点:
所述方法还包括: 在确定本地有緩存信息时, 将所述緩存信息返回给所 述终端设备。
优选地, 上述信息处理方法可具有如下特点:
所述查询消息用于查询域名和 AID的映射关系, 所述緩存信息包括域名 和 AID的映射关系。
优选地, 上述信息处理方法可具有如下特点:
所述获取并緩存域名服务器和 /或身份标识和位置登记寄存器(ILR )根 据所述查询消息返回的查询结果包括:
当所述域名服务器和所述 ILR合二为一设置或分开设置时, 获得域名服 务器和所述 ILR向终端设备返回的查询结果, 并緩存所述查询结果。 优选地, 上述信息处理方法可具有如下特点:
所述向所述终端设备转发携带所述域名和 AID的查询响应消息包括: 若所述查询结果中包括域名、 AID和 RID, 则删除所述 RID, 并向所述 终端设备转发携带所述域名和 AID的查询响应消息;
若所述查询结果中只包括域名和 AID, 则向所述终端设备转发携带所述 域名和 AID的查询响应消息。
优选地, 上述信息处理方法可具有如下特点:
所述緩存所述查询结果包括:
若所述查询结果中包括域名、 AID和位置标识 RID, 则以域名为索引緩 存所述域名和 AID的映射关系; 以及, 以 AID为索引緩存所述 AID和 RID 的映射关系;
若所述查询结果中包括域名和 AID, 则以域名为索引緩存所述域名和 AID的映射关系。
本发明提供了一种接入路由器 (ASR ) , 应用于身份标识和位置分离网 络, 所述 ASR包括:
转发模块, 其设置为: 转发终端设备发送的查询消息; 以及
处理模块, 其设置为: 在确定本地无緩存信息时, 获取并緩存域名服务 器和 /或身份标识和位置登记寄存器 (ILR )根据所述查询消息返回的查询结 果, 所述查询结果中包括域名、接入标识(AID )和位置标识(RID ); 或者, 域名和 AID;以及向所述终端设备转发携带所述域名和 AID的查询响应消息。
优选地, 上述 ASR可具有如下特点:
所述处理模块还设置为: 在确定本地有緩存信息时, 将所述緩存信息返 回给所述终端设备。
优选地, 上述 ASR还可具有如下特点:
所述查询消息用于查询域名和 AID的映射关系, 所述緩存信息包括域名 和 AID的映射关系。
优选地, 上述 ASR还可具有如下特点: 所述处理模块包括:
緩存单元, 设置为: 当所述域名服务器和所述 ILR合二为一设置或分开 设置时, 获得域名服务器和所述 ILR向终端设备返回的查询结果, 并緩存所 述查询结果。
优选地, 上述 ASR还可具有如下特点:
所述处理模块包括:
处理单元, 设置为: 若所述查询结果中包括域名、 AID和 RID, 则删除 所述 RID, 并向所述终端设备转发携带所述域名和 AID的查询响应消息; 若 所述查询结果中只包括域名和 AID , 则向所述终端设备转发携带所述域名和 AID的查询响应消息。
优选地, 上述 ASR还可具有如下特点:
所述緩存单元还设置为: 若所述查询结果中包括域名、 AID和位置标识 RID, 则以域名为索引緩存所述域名和 AID的映射关系; 以及, 以 AID为索 引緩存所述 AID和 RID的映射关系; 若所述查询结果中包括域名和 AID, 则 以域名为索引緩存所述域名和 AID的映射关系。
上述信息处理方法、 域名服务器和接入路由器, 利用身份标识和位置标 识分离网络的优越性, 在全网 AID唯一的基础上, 将身份信息 AID提取出与 域名组成 DNS信息, 可进行长期緩存, 从而解决了用户移动而导致的 DNS 信息失效的问题。 附图概述
图 1为本发明身份标识和位置分离网络 SILSN的系统架构图;
图 2为本发明信息处理方法实施例一的流程图;
图 3为本发明 DNS查找过程的流程图;
图 4为本发明 DNS与 ILR之间的交互信令图;
图 5为本发明 ILR/DNS返回查询响应时所携带的信息示意图;
图 6为本发明信息处理方法实施例二的流程图; 图 7为本发明域名服务器的结构示意图;
图 8为本发明接入路由器的结构示意图。
本发明的较佳实施方式
下面根据附图介绍各实施例。 需要说明的是, 本发明内容可以用以下实 施例解释, 但不限于以下的实施例。 下面给出具体说明: 为解决上述技术问题, 本发明提出了如图 1所示的身份标识和位置分离 网络 ( Subscriber Identifier & Locator Separation Network, SILSN ) 架构, 此 SILSN 由接入路由器 ( Access Service Node , ASR ) 和用户终端 (User Equipment, UE ) 、 身份标识和位置登记寄存器 (Identification & Location Register, ILR ) 与域名服务器 (Domain Name Server, DNS ) 以及认证中心 ( Authentication Center, AC )等组成。 其中, 接入路由器 ASR1和 ASR2用 来接入用户终端设备 UE1、 UE2, 负责为用户终端实现接入, 并承担计费、 切换等功能, ILR承担用户的位置注册和身份识别功能, AC承担用户接入认 证功能, UE1 和 UE2 分别存在唯一的身份标识符接入标识 (Access Identification, AID ) 1和 AID2。
该网络有如下特征: 此网络内每个用户只有经过严格认证才能接入, 用 户在发送每个数据包时, 都同时携带自己的真实用户接入标识 AID, 此符号 仅分配给该用户使用且全网唯一, 用户在各种业务中所发送的数据包都一直 携带此标识符, 用户发送的每个数据包都必须经过接入路由器 ASR的验证, 以保证用户发出的数据包携带的是自己的接入身份标识, 不会假冒其他用户 的 AID接入网络, 并且此标识符在网内传送时将一直保持不变, 当用户在移 动或切换时, 此标识符也不会发生变化。
如图 2所示, 为本发明信息处理方法实施例一的流程图, 该方法是基于 上述 SILSN架构实现的, 该方法包括以下步骤:
S200、 根据域名查找到终端设备的接入标识(AID ) , 并根据上述 AID 查找上述终端设备的位置标识(RID ) ;
S210、 若查找到上述 RID, 则转发上述域名、 AID和 RID; 若未查找到 上述 RID , 则转发上述域名和 AID。
在图 1中, 用户 UE1和 UE2分别通过 ASR1和 ASR2接入网络, 通过 AC进行接入认证。 UE1先用 UE2的域名 ( Domain Name )查询 UE2的 AID2, ILR/DNS根据域名查到对应的 AID2 , 然后再根据 AID查找到 UE2所在地位 置 RID。 ILR/DNS将域名、 AID2和 RID2信息返回给 ASR1。 ASR1緩存域名 与 AID2的映射关系和 AID2与 RID2的映射关系。然后, ASR1将域名与 AID2 的映射关系发送给 UE1緩存。 UE1根据 AID2向 UE2发起通信。
在该实施例中, 由于用户 AID全网唯一, 这为用户长时间緩存 AID与域 名的映射关系提供了先决条件。 本方法将与身份标识和位置分离网络结合起 来, 利用用户 AID的全网唯一性来进行 DNS信息 (即域名和 AID )緩存, 在获取通信对端的身份信息 AID的同时, 也获取通信对端的位置信息 RID。
相对于以前 IP网络 DNS信息中的 IP具有身份和位置的二义性, 无法进 行长时间緩存。 该方法利用身份标识和位置标识分离网络的优越性, 在全网 AID唯一的基础上, 将身份信息 AID提取出与域名组成 DNS信息, 可进行 长期緩存, 从而解决了用户移动而导致的 DNS信息失效的问题。
如图 3所示, 为本发明 DNS查找过程的流程图。 在该实施例中, UE已 经接入网络, 需要根据通信对端的域名访问通信对端, 向 ILR/DNS发起 DNS 查询。 在该实施例中, ILR与 DNS合二为一; 该过程包括如下步骤:
S300、 UE根据需要访问的通信对端的域名向 ILR/DNS发送 DNS查询消 息;
S310、 ASR截获 UE发送的 DNS查询消息, 提取通信对端的域名, 在 ASR 本地緩存中查找是否有上述域名与通信对端 AID 的映射关系 <DN, AID>。 如果 ASR本地有上述映射关系的緩存, 则进入 S330步骤; 如果 ASR 本地没有上述映射关系的緩存, 则跳转到 S330步骤;
S320、 ASR将在本地获取的<0^^^ 返回给 UE;
S330、 ASR结束本地处理, 将 UE的 DNS查询 ^艮文转发至 ILR/DNS处 理;
S340、 ILR/DNS接收到来自 UE的 DNS查询 文,提取通信对端的域名, 并根据通信对端的域名查找通信对端的身份信息 AID; ILR/DNS会根据查找 到的 AID, 进一步查找通信对端的位置标识 RID;
S350、 ILR/DNS向 UE返回查找结果。 如果未查找到通信对端的 AID, 即返回错误; 如果未查找到通信对端的 RID, 则只返回 AID信息; 如果 AID 与 RID都查到, 则返回 AID与 RID信息;
S360、 ASR截获到 ILR/DNS返回的 DNS查询响应, 提取其中的 AID信 息与 RID信息,在本地分别緩 <DN, AID>映射关系与 <AID, RID>映射关系; 正是因为 ASR在本地緩存了 <DN, AID>映射关系与 <AID, RID>映射关 系,才使得多用户对同一终端设备进行访问时,不需要重复执行步骤 330-370; 从而可以避免产生大量的网络流量;
S370、 ASR将 DNS查询响应中的 RID删除, 保留 AID, 向 UE发送包 含域名和 AID的 DNS查询响应消息。
如图 4所示,为本发明 DNS与 ILR之间的交互信令图,在该实施例中 ILR 与 DNS分开部署, 该交互过程包括如下步骤:
S400、 ASR将用户的 DNS查询消息转发至 DNS , 查询通信对端的 AID;
S410、 DNS根据 DNS查询报文中的 DN, 查得通信对端的 AID;
S420、 DNS向 ILR发送 DNS查询响应消息 , 并携带 DN和 AID;
S430、 ILR接收到 DNS的 DNS查询响应消息, 提取其中的 AID信息, 并根据 AID查询通信对端的位置信息 RID;
S440、 ILR向 ASR发送 DNS响应消息。
需要说明的是, 如果没有查询到通信对端的 RID, ILR发送的 DNS响应 消息不包含 RID; 如果查询到通信对端的 RID, ILR发送的 DNS响应消息包 含 DN、 AID和 RID。
如图 5所示, 为本发明 ILR/DNS返回查询响应时所携带的信息示意图, 该 DNS查询响应信息携带的基本信息有 DN ( Domain Name ) 、 AID和 RID。
需要说明的是, 当通信对端未接入网络中时, DNS查询响应信息携带的 基本信息只包含 DN和 AID, 不包含通信对端的位置信息 RID。 另外, ASR对 DNS查询响应信息可作如下处理:
将 DN、 AID和 RID拆分为两类緩存。 一类为 <DN, AID>的映射关系, 这一类映射关系比较固定, 不受通信对端是否接入网络影响; 另一类为<^0, RID>映射关系, 这一类映射关系相对动态, 受通信对端是否接入网络影响, 且通信对端移动也会影响该映射关系。
ASR以 DN为索引緩存 <DN, AID>映射关系, 以 AID为索引緩存 <AID, RID>映射关系。
如图 6所示, 为本发明信息处理方法实施例二的流程图, 该方法基于身 份标识和位置标识分离网络架构来实现, 该方法包括:
S600、 转发终端设备发送的查询消息;
S610、 在确定本地无緩存信息时, 获取并緩存域名服务器和 /或身份标识 和位置登记寄存器(ILR )根据所述查询消息返回的查询结果, 所述查询结果 中包括域名、 接入标识(AID )和位置标识(RID ); 或者, 域名和 AID; 以 及向所述终端设备转发携带所述域名和 AID的查询响应消息。
其中, 当上述域名服务器和上述 ILR合二为一设置时, 上述域名服务器 和上述 ILR根据上述查询消息中携带的域名查找到上述 AID ,并根据上述 AID 查找上述 RID; 若查找到上述 RID, 则向上述终端设备返回的查询结果中包 括上述域名、 AID和 RID, 上述 ASR截获并緩存上述查询结果; 若未查找到 上述 RID, 则向上述终端设备返回的查询结果中包括上述域名和 AID, 上述 ASR截获并緩存上述查询结果; 详细的过程可参见图 3;
当上述域名服务器和上述 ILR分开设置时, 上述域名服务器根据上述查 询消息中携带的域名查找到上述 AID, 并向上述 ILR发送查询响应消息, 上 述 ILR提取出上述查询响应消息中携带的 AID , 并根据上述 AID查找 RID; 若查找到上述 RID,则向 ASR返回的查询结果中包括上述域名、 AID和 RID, 上述 ASR接收并緩存上述查询结果; 若未查找到上述 RID, 则向 ASR返回 的查询结果中包括上述域名和 AID, 上述 ASR接收并緩存上述查询结果; 详 细的过程可参见图 4。
另外, 若所述查询结果中包括域名、 AID和 RID, 则删除所述 RID, 并 向所述终端设备转发携带所述域名和 AID的查询响应消息; 若所述查询结果 中只包括域名和 AID , 则向所述终端设备转发携带所述域名和 AID的查询响 应消息。 终端设备接收并緩存上述携带所述域名和 AID的查询响应消息, 从 而可以解决用户移动而导致的 DNS信息失效的问题。
该信息处理方法, 利用身份标识和位置标识分离网络的优越性, 将获取 到的 DNS信息发送给终端设备进行长期緩存,从而解决了用户移动而导致的 DNS信息失效的问题。
如图 7所示, 为本发明域名服务器的结构示意图, 该域名服务器包括查 找模块 71和转发模块 72; 其中, 查找模块用于根据通信对端的域名查找到 所述通信对端的接入标识(AID ) , 并根据所述 AID查找所述通信对端的位 置标识 (RID ) ; 以及转发模块用于若查找到所述 RID, 则返回所述域名、 AID和 RID; 若未查找到所述 RID, 则返回所述域名和 AID。
其中, 所述查找模块可以包括第一查找单元, 该第一查找单元可以用于 接收接入路由器 (ASR )转发的查询消息, 根据所述查询消息中携带的域名 查找到所述 AID。 所述查找模块还可以包括第二查找单元, 该第二查找单元 可以用于向身份标识和位置登记寄存器(ILR )发送查询消息, 以便所述 ILR 提取出所述查询消息中携带的 AID, 并根据所述 AID查找通信对端的 RID。
另外, 所述转发模块可以进一步用于若所述 ILR查找到所述 RID, 则向 所述 ASR转发所述域名、 AID和 RID; 若所述 ILR未查找到所述 RID, 则向 所述 ASR转发所述域名和 AID。
优选地, 所述域名服务器中还可以设有身份标识和位置登记寄存器 ( ILR ) , 则所述转发模块可以进一步用于若查找到所述 RID, 则向终端设备 返回所述域名、 AID和 RID; 若未查找到所述 RID, 则向所述终端设备返回 所述域名和 AID。
该域名服务器通过与 ASR交互, 可解决用户移动而导致的 DNS信息失 效的问题, 具体交互流程可参见图 3和图 4, 此处不再赘述。
该域名服务器,利用身份标识和位置标识分离网络的优越性,在全网 AID 唯一的基础上, 将身份信息 AID提取出与域名组成 DNS信息进行长期緩存, 从而解决了用户移动而导致的 DNS信息失效的问题。
如图 8所示, 为本发明接入路由器的结构示意图, 该接入路由器包括转 发模块 81和处理模块 82, 其中: 转发模块用于转发终端设备发送的查询消 息; 处理模块用于在确定本地无緩存信息时, 获取并緩存域名服务器和 /或身 份标识和位置登记寄存器(ILR )根据所述查询消息返回的查询结果, 所述查 询结果中包括域名、 接入标识 (AID )和位置标识 (RID ) ; 或者, 域名和 AID; 以及向所述终端设备转发携带所述域名和 AID的查询响应消息。
其中, 所述处理模块还可以用于在确定本地有緩存信息时, 将所述緩存 信息返回给所述终端设备。 所述查询消息用于查询域名和 AID的映射关系, 所述緩存信息包括域名和 AID的映射关系。
优选地, 所述处理模块可以包括緩存单元, 该緩存单元可以用于当所述 域名服务器和所述 ILR合二为一设置或分开设置时, 获得域名服务器和所述 ILR 向终端设备返回的查询结果, 并緩存所述查询结果。 进一步地, 若所述 查询结果中包括域名、 AID和位置标识 RID , 则緩存单元可以用于以域名为 索引緩存所述域名和 AID的映射关系; 以及, 以 AID为索引緩存所述 AID 和 RID的映射关系; 若所述查询结果中包括域名和 AID, 则緩存单元可以用 于以域名为索引緩存所述域名和 AID的映射关系。
进一步地, 所述处理模块还可以包括处理单元, 该处理单元可以用于若 所述查询结果中包括域名、 AID和 RID, 则删除所述 RID, 并向所述终端设 备转发携带所述域名和 AID的查询响应消息; 若所述查询结果中只包括域名 和 AID, 则向所述终端设备转发携带所述域名和 AID的查询响应消息。
该接入路由器利用身份标识和位置标识分离网络的优越性, 将获取到的 DNS信息发送给终端设备进行长期緩存,从而解决了用户移动而导致的 DNS 信息失效的问题。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 上述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
以上实施例仅用以说明本发明的技术方案而非限制, 仅仅参照较佳实施 例对本发明进行了详细说明。 本领域的普通技术人员应当理解, 可以对本发 明的技术方案进行修改或者等同替换, 而不脱离本发明技术方案的精神和范 围, 均应涵盖在本发明的权利要求范围当中。
工业实用性
本发明实施例利用身份标识和位置标识分离网络的优越性, 在全网 AID 唯一的基础上, 将身份信息 AID提取出与域名组成 DNS信息, 可进行长期 緩存, 从而解决了用户移动而导致的 DNS信息失效的问题。

Claims

权 利 要 求 书
1、一种信息处理方法,应用于身份标识和位置分离网络,所述方法包括: 根据通信对端的域名查找到所述通信对端的接入标识 (AID ) , 并根据 所述 AID查找所述通信对端的位置标识(RID ) ; 以及
若查找到所述 RID,则返回所述域名、 AID和 RID;若未查找到所述 RID, 则返回所述域名和 AID。
2、 根据权利要求 1所述的信息处理方法, 其中, 所述根据通信对端的域 名查找到所述通信对端的 AID包括:
接收接入路由器 (ASR )转发的查询消息, 根据所述查询消息中携带的 域名查找到所述 AID。
3、 根据权利要求 1或 2所述的信息处理方法, 其中, 所述根据所述 AID 查找所述通信对端的位置标识(RID ) 包括:
向身份标识和位置登记寄存器(ILR )发送查询消息, 所述 ILR提取出所 述查询消息中携带的 AID, 并根据所述 AID查找通信对端的 RID。
4、 根据权利要求 3所述的信息处理方法, 其中, 若查找到所述 RID, 则 返回所述域名、 AID和 RID; 若未查找到所述 RID, 则返回所述域名和 AID 包括:
若所述 ILR查找到所述 RID,则向所述 ASR转发所述域名、 AID和 RID; 若所述 ILR未查找到所述 RID , 则向所述 ASR转发所述域名和 AID。
5、根据权利要求 1所述的信息处理方法,其中,所述若查找到所述 RID, 则返回所述域名、 AID和 RID包括:
若查找到所述 RID, 则向 ASR返回所述域名、 AID和 RID; 所述 ASR 接收所述域名、 AID和 RID,并緩存所述域名和 AID的映射关系以及所述 AID 和 RID的映射关系。
6、 根据权利要求 1 所述的信息处理方法, 其中, 所述若未查找到所述
RID , 则返回所述域名和 AID包括:
若未查找到所述 RID, 则向 ASR返回所述域名和 AID; 所述 ASR接收并緩存所述域名和 AID的映射关系。
7、 根据权利要求 5所述的信息处理方法, 其中, 所述 ASR緩存所述域 名和 AID的映射关系以及所述 AID和 RID的映射关系包括:
所述 ASR以域名为索引緩存所述域名和 AID的映射关系; 以及, 以 AID 为索引緩存所述 AID和 RID的映射关系。
8、 根据权利要求 6所述的信息处理方法, 其中, 所述 ASR緩存所述域 名和 AID的映射关系包括:
所述 ASR以域名为索引緩存所述域名和 AID的映射关系。
9、 根据权利要求 5或 6所述的信息处理方法, 其中, 所述方法还包括: 所述 ASR向所述终端设备返回携带所述域名和 AID的映射关系的查询消 息。
10、 根据权利要求 9所述的信息处理方法, 其中, 在向所述终端设备返 回查询消息之后, 所述方法还包括:
所述终端设备緩存所述域名和 AID的映射关系。
11、 一种域名服务器, 应用于身份标识和位置分离网络, 所述域名服务 器包括:
查找模块, 其设置为: 根据通信对端的域名查找到所述通信对端的接入 标识(AID ) , 并根据所述 AID 查找所述通信对端的位置标识(RID ) ; 以 及
转发模块,其设置为:若查找到所述 RID,则返回所述域名、 AID和 RID; 若未查找到所述 RID , 则返回所述域名和 AID。
12、 根据权利要求 11所述的域名服务器, 其中, 所述查找模块包括: 第一查找单元, 设置为: 接收接入路由器(ASR )转发的查询消息, 根 据所述查询消息中携带的域名查找到所述 AID。
13、 根据权利要求 11或 12所述的域名服务器, 其中, 所述查找模块包 括:
第二查找单元, 设置为: 向身份标识和位置登记寄存器(ILR )发送查询 消息, 以便所述 ILR提取出所述查询消息中携带的 AID, 并根据所述 AID查 找通信对端的 RID。
14、 根据权利要求 13所述的域名服务器, 其中,
所述转发模块还设置为: 若所述 ILR查找到所述 RID, 则向所述 ASR转 发所述域名、 AID和 RID; 若所述 ILR未查找到所述 RID, 则向所述 ASR转 发所述域名和 AID。
15、 根据权利要求 11或 12所述的域名服务器, 其中, 所述域名服务器 中设有身份标识和位置登记寄存器(ILR ) ,
所述转发模块还设置为: 若查找到所述 RID, 则向终端设备返回所述域 名、 AID和 RID; 若未查找到所述 RID, 则向所述终端设备返回所述域名和 AID。
16、 一种信息处理方法, 应用于身份标识和位置分离网络, 所述方法包 括:
转发终端设备发送的查询消息;
在确定本地无緩存信息时, 获取并緩存域名服务器和 /或身份标识和位置 登记寄存器(ILR )根据所述查询消息返回的查询结果, 所述查询结果中包括 域名、 接入标识(AID )和位置标识(RID ); 或者, 域名和 AID; 以及向所 述终端设备转发携带所述域名和 AID的查询响应消息。
17、 根据权利要求 16所述的信息处理方法, 其中, 所述方法还包括: 在确定本地有緩存信息时, 将所述緩存信息返回给所述终端设备。
18、 根据权利要求 16或 17所述的信息处理方法, 其中, 所述查询消息 用于查询域名和 AID的映射关系,所述緩存信息包括域名和 AID的映射关系。
19、 根据权利要求 18所述的信息处理方法, 其中, 所述获取并緩存域名 服务器和 /或身份标识和位置登记寄存器 (ILR )根据所述查询消息返回的查 询结果包括:
当所述域名服务器和所述 ILR合二为一设置或分开设置时, 获得域名服 务器和所述 ILR向终端设备返回的查询结果, 并緩存所述查询结果。
20、 根据权利要求 18所述的信息处理方法, 其中, 所述向所述终端设备 转发携带所述域名和 AID的查询响应消息包括:
若所述查询结果中包括域名、 AID和 RID, 则删除所述 RID, 并向所述 终端设备转发携带所述域名和 AID的查询响应消息;
若所述查询结果中只包括域名和 AID, 则向所述终端设备转发携带所述 域名和 AID的查询响应消息。
21、 根据权利要求 19所述的信息处理方法, 其中, 所述緩存所述查询结 果包括:
若所述查询结果中包括域名、 AID和位置标识 RID, 则以域名为索引緩 存所述域名和 AID的映射关系; 以及, 以 AID为索引緩存所述 AID和 RID 的映射关系;
若所述查询结果中包括域名和 AID, 则以域名为索引緩存所述域名和 AID的映射关系。
22、 一种接入路由器 (ASR ) , 应用于身份标识和位置分离网络, 所述 ASR包括:
转发模块, 其设置为: 转发终端设备发送的查询消息; 以及
处理模块, 其设置为: 在确定本地无緩存信息时, 获取并緩存域名服务 器和 /或身份标识和位置登记寄存器 (ILR )根据所述查询消息返回的查询结 果, 所述查询结果中包括域名、接入标识(AID )和位置标识(RID ); 或者, 域名和 AID;以及向所述终端设备转发携带所述域名和 AID的查询响应消息。
23、 根据权利要求 22所述的 ASR, 其中, 所述处理模块还设置为: 在确 定本地有緩存信息时, 将所述緩存信息返回给所述终端设备。
24、 根据权利要求 22或 23所述的 ASR, 其中, 所述查询消息用于查询 域名和 AID的映射关系, 所述緩存信息包括域名和 AID的映射关系。
25、 根据权利要求 23所述的 ASR, 其中, 所述处理模块包括: 緩存单元, 设置为: 当所述域名服务器和所述 ILR合二为一设置或分开 设置时, 获得域名服务器和所述 ILR向终端设备返回的查询结果, 并緩存所 述查询结果。
26、 根据权利要求 23所述的 ASR, 其中, 所述处理模块包括: 处理单元, 设置为: 若所述查询结果中包括域名、 AID和 RID, 则删除 所述 RID, 并向所述终端设备转发携带所述域名和 AID的查询响应消息; 若 所述查询结果中只包括域名和 AID , 则向所述终端设备转发携带所述域名和 AID的查询响应消息。
27、 根据权利要求 25所述的 ASR, 其中, 所述緩存单元还设置为: 若所 述查询结果中包括域名、 AID和位置标识 RID, 则以域名为索引緩存所述域 名和 AID的映射关系; 以及, 以 AID为索引緩存所述 AID和 RID的映射关 系;若所述查询结果中包括域名和 AID,则以域名为索引緩存所述域名和 AID 的映射关系。
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