CN102572681B - A kind of link information acquisition methods and system - Google Patents
A kind of link information acquisition methods and system Download PDFInfo
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- CN102572681B CN102572681B CN201010607711.7A CN201010607711A CN102572681B CN 102572681 B CN102572681 B CN 102572681B CN 201010607711 A CN201010607711 A CN 201010607711A CN 102572681 B CN102572681 B CN 102572681B
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Abstract
The invention provides a kind of link information acquisition methods, including: link information server sends link information to opposite end and accesses gateway, opposite end is accessed gateway and is sent link information to location server, or, link information is transmitted directly to described location server by link information server.The present invention also provides for a kind of link information and obtains system.In the present invention, terminal or opposite end are accessed gateway and be need not safeguard the link information that correspondent network is corresponding in advance, effectively reduce current method to the administrative burden of system, promote system treatment effeciency.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a method and a system for acquiring connection information.
Background
An IP address in a TCP/IP (Transmission Control Protocol/internet Protocol ) Protocol widely used in the existing internet has a dual function, and is used as a location identifier of a communication terminal host network interface in a network topology and an identity identifier of a host network interface in a Transmission layer. However, as host mobility becomes more prevalent, the semantic overload drawback of such IP addresses becomes increasingly apparent. When the IP address of the host changes, not only the route changes, but also the identity of the communication terminal host changes, which will cause the route load to be heavier and heavier, and the change of the host identity will also cause the interruption of the application and the connection. The purpose of the separation of the identity and the position is to separate the dual functions of the IP address in order to solve the problems of semantic overload, serious routing load and the like of the IP address, and realize the support of the mobility, multi-hometown, dynamic IP address redistribution, reduction of the routing load, mutual access among different network areas in the next generation of Internet and the like.
Fig. 1 shows an architecture of an id and location separation network, where a network topology of the architecture is divided into an access network and a backbone network that are not overlapped in a topological relation, the access network is located at an edge of the backbone network and is responsible for access of all terminals, and the backbone network is responsible for routing and forwarding of data packets between the accessed terminals. In the network, the user identity identification of the terminal is represented by the terminal identification and is always kept unchanged in the terminal moving process; the terminal position is used for representing the position identification distributed by the network for the terminal and used in the backbone network. It should be noted that the id and the location id may have different names in different communication architectures and should be considered equivalent.
In the split-id-location architecture, the terminal may be one or more of a mobile terminal, a fixed terminal, and a nomadic terminal, such as a mobile phone, a fixed phone, a computer, a server, and so on. The access network is used for providing a two-layer (physical layer and link layer) access means for the terminal and maintaining a physical access link between the terminal and the access gateway. The main network elements of the backbone network include: the access gateway is used for allocating location information to the terminal, maintaining the identifier and location mapping information of the terminal, performing location registration (also referred to as location registration) and querying location information of the terminal (as shown in fig. 2) to the location server, and implementing routing and forwarding of data packets, where the terminal needs to access the backbone network through the access gateway. The location information allocated by the access gateway points to the access gateway, that is, the location information includes address information of the access gateway, and when the location information is used as a destination address of the data packet, the data packet is routed to the access gateway. The Common Router (CR) is configured to select a route according to the location information in the data packet, and forward the data packet using the location information as a destination address. The location server is used for processing registration, logout and inquiry of the terminal location information, storing and maintaining the identity and the location information mapping information of the home subscriber terminal.
Optionally, the backbone network may further include: a Packet Transfer Function (PTF), also called a Packet Transfer Function node, is configured to, after receiving a data Packet sent by an attributive user terminal, find, according to a communication peer identifier in the data Packet, location information of a communication peer and encapsulate the location information in a header of the Packet, and then forward the Packet to a generalized forwarding plane. An Interconnection Service Node (ISN) has interfaces with a general router, an access gateway, and a location server, and is used to implement interconnection of two networks.
The location server, or the location server and the PTF, form a mapping forwarding plane of the backbone network, and the CR, or the CR and the ISN, form a generalized forwarding plane of the backbone network.
In the network based on the identity and position separation architecture, because the identity identifier and the position of the terminal are separated, the terminal and the opposite communication terminal identify each other through the terminal identifier, and the routing and forwarding of the data message are realized by using the position information. When the terminal moves, the identity identification of the terminal is unchanged so as to keep the communication relationship between the terminal and the communication opposite terminal, and the position information can be redistributed along with the movement of the terminal, so that the terminal can be supported to carry out the mobility without a fixed anchor point, and the problem of data packet path roundabout is solved.
When communication is carried out in the identity position separation architecture, the access gateway receives the uplink data message and needs to carry out position information encapsulation and forwarding. Specifically, the location information of the correspondent node is locally queried, and if the location information of the correspondent node is queried, the location information of the correspondent node is used as a destination address, the location information of the terminal is used as a source address, and the destination address is encapsulated in a data message containing a terminal identifier and a correspondent identifier, and the data message is forwarded to an access gateway accessed by the correspondent node through a generalized forwarding plane. If the inquiry is not received, the home location server of the correspondent node inquires the location information of the correspondent node and stores the location information locally. At this time, after the location information of the terminal is encapsulated in the message, the message may be forwarded to the generalized forwarding plane through the mapping forwarding plane, or after the location information of the correspondent node is queried, the access gateway performs location information encapsulation and forwarding processing in the manner described above when the location information of the correspondent node is queried locally. In the downlink direction, the access gateway receives the data message sent by the generalized forwarding plane, performs decapsulation of the location information, and strips the location information and sends the stripped location information to the terminal.
It can be seen that, in order to implement normal forwarding of a packet, the access gateway needs to allocate location information to a terminal when the terminal accesses, and register the location information with a location server to update the location information of the terminal in the location server. The access gateway also needs to maintain the identifier and the location information mapping information of the terminal and the communication opposite terminal thereof to realize the location information encapsulation of the message. In an example, the access gateway maintains, for each terminal, communication relationship information between the terminal and a corresponding terminal, referred to herein as corresponding terminal information of the terminal, where the corresponding terminal information includes correspondence information between a terminal identifier and a corresponding terminal identifier, and may further include an identifier of the terminal and location information mapping information, and meanwhile, the access gateway maintains identifiers and location information mapping information of corresponding terminals of all terminals in a unified manner. Of course, it is also possible that the access gateway maintains, for each terminal, identifiers and location information mapping information of all communication peers of the terminal, where the identifiers and location information mapping information include peer-to-peer information of the terminal. The opposite terminal information is maintained, so that when the terminal is switched, the access gateway at the hand-in side can determine which communication opposite terminals exist in the terminal, and thus, new position information of the terminal can be sent to the access gateway accessed by the communication opposite terminals so as to update the position. After the access gateway accessed by the communication opposite terminal completes updating, the data message sent by the communication opposite terminal can be directly routed to the access gateway switched by the terminal.
The acquisition of terminal position information under the condition of multiple connections needs to be inquired according to the connection information, at this time, when a communication opposite terminal sends data to the terminal, the access gateway of the communication opposite terminal needs to acquire the connection information (such as a network name) corresponding to an opposite terminal network.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method and a system for acquiring connection information, which effectively reduce the management burden of the current method on the system and improve the processing efficiency of the system.
In order to solve the above problem, the present invention provides a connection information acquiring method, including:
the connection information server transmits the connection information to the opposite-end access gateway, and the opposite-end access gateway transmits the connection information to the position server, or the connection information server directly transmits the connection information to the position server.
Further, the method can also have the following characteristics:
and the position server returns the position information of the terminal to the opposite terminal access gateway according to the connection information.
Further, the method can also have the following characteristics: before the connection information server transmits the connection information to the opposite terminal access gateway, the method further comprises the following steps:
and the opposite terminal access gateway sends a query request message to the connection information server, the query request message carries the identification of the opposite terminal, and the connection information server acquires the connection information according to the identification of the opposite terminal.
Further, the method can also have the following characteristics:
before the connection information server transmits the connection information to the location server, the method further comprises the following steps:
the data sent by the opposite terminal to the terminal reaches the connection information server through the opposite terminal access gateway;
the connection information server acquires the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway sends a query request message to the connection information server, the query request message carries an identifier of the opposite terminal, and the connection information server acquires the connection information according to the identifier of the opposite terminal;
or, the opposite terminal access gateway sends a request for inquiring the position information to the position server, and the request carries the identifier of the opposite terminal;
the position server sends a connection information inquiry request to the connection information server, and the connection information inquiry request carries the identification of the opposite terminal;
and the connection information server acquires the connection information according to the identifier of the opposite terminal.
Further, the method can also have the following characteristics: the method further comprises the following steps:
and the position server caches the corresponding relation between the opposite terminal identification and the connection information.
Further, the method can also have the following characteristics:
the connection information comprises one or a combination of the following: network name, public land mobile network identification, service quality parameter, and charging information.
The invention also provides a connection information acquisition system, which comprises a connection information server and a position server, or comprises the connection information server, an opposite terminal access gateway and the position server, wherein:
the connection information server is used for transmitting the connection information to the opposite terminal access gateway; or, directly transmitting the connection information to the location server;
and the opposite terminal access gateway is used for transmitting the connection information to the position server.
Further, the system can also have the following characteristics:
and the position server is used for returning the position information of the terminal to the opposite terminal access gateway according to the connection information.
Further, the system can also have the following characteristics:
the opposite terminal access gateway is also used for sending a query request message to the connection information server, and the query request message carries the identifier of the opposite terminal;
the connection information server is used for obtaining the connection information according to the identifier of the opposite terminal.
Further, the system can also have the following characteristics:
the opposite terminal access gateway is also used for transmitting the data sent by the opposite terminal to the connection information server;
the connection information server is used for acquiring the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway is also used for sending a query request message to the connection information server, and the query request message carries the identifier of the opposite terminal;
the connection information server is used for acquiring the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway is also used for sending a position information query request to the position server, and carrying the identification of the opposite terminal;
the position server is also used for sending a connection information query request to the connection information server, and the connection information query request carries the identifier of the opposite terminal;
the connection information server is used for obtaining the connection information according to the identifier of the opposite terminal.
Further, the system can also have the following characteristics:
the location server is further configured to cache a correspondence between the peer identifier and the connection information.
Further, the system can also have the following characteristics:
the connection information comprises one or a combination of the following: network name, public land mobile network identification, service quality parameter, and charging information.
The invention provides a method for acquiring connection information by combining an identity position separation network, so that an opposite terminal can acquire correct position information when sending data to the terminal, and the terminal or an opposite terminal access gateway does not need to maintain the connection information corresponding to the opposite terminal network in advance, thereby effectively reducing the management burden of the current method on the system and improving the processing efficiency of the system.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a diagram illustrating a wireless communication network connection according to the prior art;
fig. 2 is a flowchart of a process of querying terminal location information when an opposite terminal sends data to a terminal in the prior art;
fig. 3 is a first flowchart of a process of querying terminal location information when an opposite terminal sends data to a terminal;
FIG. 4 is a flowchart II of a process of querying terminal location information when an opposite terminal sends data to a terminal;
fig. 5 is a third flowchart of a process of querying terminal location information when an opposite terminal sends data to a terminal;
fig. 6 is a fourth flowchart of a process of querying terminal location information when an opposite terminal sends data to a terminal.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
The invention provides a method for acquiring connection information, which comprises the following steps:
the connection information server transmits the connection information to the opposite terminal access gateway, and the opposite terminal access gateway transmits the connection information to the position server; or the connection information server directly transmits the connection information to the position server;
and the position server returns the position information of the terminal to the opposite terminal access gateway according to the connection information.
Further, after receiving the connection information, the location server caches a corresponding relationship between the opposite terminal identifier and the connection information;
the connection information may refer to connection information of a terminal network or an opposite terminal network, and if the connection information is information of the terminal network, a corresponding relationship exists between the connection information and the opposite terminal network.
Further, the connection information includes one or a combination of the following information: network name, public land mobile network identification (PLMN ID), quality of service (QoS) parameters, charging information.
The network name is APN (access point name), domain name/identity, PDN (packet data network) name/identity. The QoS parameter may be a QCI (QoS Class Identifier). The charging information may be a rate, a tariff level.
The opposite terminal identifier may be an AID (access identifier), an IMSI (international mobile subscriber identity), an ID (identifier), an NAI (network access identifier), or an IP address.
The location information of the terminal may be an access gateway address/identifier currently serving the terminal, or an IP address allocated by the access gateway to the terminal.
Wherein, the connection information server also includes before transmitting the connection information to the opposite terminal access gateway:
and the opposite terminal access gateway sends a query request message to the connection information server, the query request message carries the identification of the opposite terminal, and the connection information server acquires the connection information according to the identification of the opposite terminal.
Wherein, the connection information server further comprises, before transmitting the connection information to the location server:
the data sent by the opposite terminal to the terminal reaches the connection information server through the opposite terminal access gateway;
the connection information server acquires the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway sends a query request message to the connection information server, the query request message carries an identifier of the opposite terminal, and the connection information server acquires the connection information according to the identifier of the opposite terminal;
or, the opposite terminal access gateway sends a request for inquiring the position information to the position server, and the request carries the identifier of the opposite terminal;
the position server sends a connection information inquiry request to the connection information server, and the connection information inquiry request carries the identification of the opposite terminal;
and the connection information server acquires the connection information according to the identifier of the opposite terminal.
The following embodiments further describe the inquiry process of the terminal location based on the above network architecture, and the original content of the original message in the inquiry process is not described in detail.
Fig. 3 is a flowchart of a process of querying terminal location information when an opposite terminal sends data to a terminal, based on the scenario of the system architecture in fig. 1. In this embodiment, the opposite access gateway requests and acquires the connection information from the connection information server. The specific steps are described as follows:
step 301, data sent by an opposite terminal to a terminal reaches an opposite terminal access gateway;
step 302, optionally, under the condition that the terminal identifier location mapping information is not cached, the opposite access gateway may cache the data;
step 303, the opposite terminal access gateway sends a connection information query message to the connection information server, and the connection information query message carries an opposite terminal identifier;
step 304, the connection information server obtains connection information according to the opposite terminal identification, replies a connection information query response to the opposite terminal access gateway, and carries the connection information;
step 305, optionally, the opposite-end access gateway caches a corresponding relationship between the opposite-end identifier and the connection information, so that the connection information can be locally obtained for a subsequent message sent by the opposite end to the terminal, and an operation of querying a connection information server does not need to be executed, thereby effectively improving the execution efficiency;
step 306, the opposite terminal access gateway requests the position server to inquire the terminal position information, carrying the terminal identification and the connection information;
step 307, the location server returns a response for inquiring the location information of the terminal, and carries the location information of the terminal;
step 308, the opposite access gateway sends the data to the acquired location information (terminal access gateway), and the terminal access gateway sends the data to the terminal. Meanwhile, the opposite-end access gateway can cache the opposite-end identifier, the terminal identifier and the terminal position information, and optionally stores the connection information, so that the subsequent messages sent from the opposite end to the terminal are routed to the access gateway of the terminal without performing the operation of inquiring the position server.
Fig. 4 is a flowchart of a process of querying terminal location information when an opposite terminal sends data to a terminal, based on the scenario of the system architecture in fig. 1. In this embodiment, the opposite-end access gateway sends the data to the connection information server, and the connection information server performs connection information acquisition and data forwarding. The specific steps are described as follows:
step 401, data sent by an opposite terminal to a terminal reaches a connection information server through an opposite terminal access gateway;
step 402, the connection information server obtains connection information according to the opposite terminal identification;
step 403, the connection information server requests the location server to query the location information of the terminal, carrying the terminal identifier and the connection information;
step 404, the location server returns a response for inquiring the location information of the terminal, and the response carries the location information;
in step 405, the connection information server sends the data to the acquired location information (terminal access gateway), and the terminal access gateway sends the data to the terminal. Meanwhile, the connection information server may cache the opposite terminal identifier, the terminal identifier, and the terminal location information, and optionally store the connection information, so as to route a subsequent message sent from the opposite terminal to the access gateway of the terminal without performing an operation of querying the location server.
Fig. 5 is a flowchart of a process of querying terminal location information when an opposite terminal sends data to a terminal, based on the scenario of the system architecture in fig. 1. In this embodiment, the opposite-end access gateway requests the connection information server for location information, and the connection information server performs a connection information obtaining operation. The specific steps are described as follows:
step 501, data sent by an opposite terminal to a terminal reaches an opposite terminal access gateway;
step 502, optionally, under the condition that the terminal identifier location mapping information is not cached, the opposite access gateway may cache the data;
step 503, the opposite terminal access gateway sends a query request message to the connection information server, carrying the identifier of the local terminal (i.e. the opposite terminal) and the terminal identifier; after acquiring the connection information according to the local terminal identification, the connection information server requests the position server to inquire the terminal position information, and the terminal identification and the connection information are carried;
step 504, the location server returns a response for inquiring the location information of the terminal to the opposite terminal access gateway through the connection server, and the response carries the location information;
step 505, the opposite access gateway sends the data to the acquired location information (terminal access gateway), and the terminal access gateway sends the data to the terminal. Meanwhile, the opposite-end access gateway can cache the opposite-end identifier, the terminal identifier and the terminal position information, so that the subsequent message sent by the opposite end to the terminal is routed to the access gateway of the terminal without executing the operation of inquiring the position server.
Fig. 6 is a flowchart of a process of querying terminal location information when an opposite terminal sends data to a terminal, based on the scenario of the system architecture in fig. 1. In this embodiment, the location server requests the connection information server for connection information. The specific steps are described as follows:
601, the data sent by the opposite terminal to the terminal reaches the opposite terminal access gateway;
step 602, optionally, under the condition that the terminal identifier location mapping information is not cached, the opposite access gateway may cache the data;
step 603, the opposite terminal access gateway sends a query request message to the location server, carrying the identifier of the local terminal (i.e. the opposite terminal) and the terminal identifier;
step 604, the location server sends a connection information query message to the connection information server, carrying the identifier of the local terminal (i.e. the opposite terminal);
step 605, the connection information server replies a connection information query response to the location server, and the connection information is carried;
step 606, optionally, the location server caches a corresponding relationship between the peer identifier and the connection information, so that the connection information can be locally obtained for a subsequent query request message sent by the peer access gateway, and the query operation to the connection information server does not need to be executed, thereby effectively improving the execution efficiency; the position server returns an information query response to the opposite-end access gateway, and the information query response carries position information;
step 607, the opposite access gateway sends the data to the acquired location information (terminal access gateway), and the terminal access gateway sends the data to the terminal. Meanwhile, the opposite-end access gateway can cache the opposite-end identifier, the terminal identifier and the terminal position information, so that the subsequent message sent by the opposite end to the terminal is routed to the access gateway of the terminal without executing the operation of inquiring the position server.
When the terminal moves, the terminal access gateway is required to perform a position updating process for the terminal, and in the switching process, the terminal access gateway carries a terminal identifier, a new position, connection information or an opposite terminal identifier when sending new position information of the terminal to the opposite terminal access gateway.
For simplifying the description, all the above embodiments take the case where the access gateway queries the connection information server for connection information or location information, and queries the location server for location information as an example to explain the manner of acquiring the connection information. The function of the access gateway of the opposite terminal can be moved to the opposite terminal, the opposite terminal inquires the connection information or the position information from the connection information server and inquires the position information from the position server, and other processes are consistent with the above embodiment and will not affect the explanation of the present invention, so that the description is not repeated here.
In all of the above embodiments of the present invention,
the connection information may be one or more of the following: network name, PLMN ID, QoS parameters, charging information.
The connection information may refer to information of the terminal network or the peer network, and if the connection information is information of the terminal network, a corresponding relationship exists between the connection information and the peer network.
The network name may be an APN, domain name/identity, PDN name/identity.
The QoS parameter may be a QCI.
The charging information may be a rate, a tariff level.
The terminal identification may be AID, IMSI, ID, NAI, IP address.
The location information may be an access gateway address/identity, or an access gateway assigned IP address.
The invention also provides a connection information acquisition system, which comprises a connection information server and a position server, or comprises the connection information server, an opposite terminal access gateway and the position server, wherein:
the connection information server is used for transmitting the connection information to the opposite terminal access gateway; or, directly transmitting the connection information to the location server;
and the opposite terminal access gateway is used for transmitting the connection information to the position server.
And the position server is also used for returning the position information of the terminal to the opposite terminal access gateway according to the connection information.
The opposite terminal access gateway is further configured to send a query request message to the connection information server, where the query request message carries an identifier of the opposite terminal;
the connection information server is used for obtaining the connection information according to the identifier of the opposite terminal.
The opposite terminal access gateway is also used for transmitting data sent by the opposite terminal to the connection information server;
the connection information server is used for acquiring the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway is also used for sending a query request message to the connection information server, and the query request message carries the identifier of the opposite terminal;
the connection information server is used for acquiring the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway is also used for sending a position information query request to the position server, and carrying the identification of the opposite terminal;
the position server is also used for sending a connection information query request to the connection information server, and the connection information query request carries the identifier of the opposite terminal;
the connection information server is used for obtaining the connection information according to the identifier of the opposite terminal.
And the position server is also used for caching the corresponding relation between the opposite terminal identification and the connection information.
Wherein the connection information includes one or a combination of the following: network name, public land mobile network identification, service quality parameter, and charging information.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A connection information acquisition method is characterized in that,
the connection information server transmits the connection information to an opposite-end access gateway after acquiring the connection information, and the opposite-end access gateway transmits the connection information to the position server, or the connection information server directly transmits the connection information to the position server;
the connection information comprises one or a combination of the following: network name, public land mobile network identification, service quality parameter, and charging information.
2. The method of claim 1, wherein the method further comprises:
and the position server returns the position information of the terminal to the opposite terminal access gateway according to the connection information.
3. The method of claim 1, wherein before the connection information server transmits the connection information to the correspondent access gateway, the method further comprises:
and the opposite terminal access gateway sends a query request message to the connection information server, the query request message carries the identification of the opposite terminal, and the connection information server acquires the connection information according to the identification of the opposite terminal.
4. The method of claim 1, wherein prior to the connection information server transmitting the connection information to a location server, further comprising:
the data sent by the opposite terminal to the terminal reaches the connection information server through the opposite terminal access gateway;
the connection information server acquires the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway sends a query request message to the connection information server, the query request message carries an identifier of the opposite terminal, and the connection information server acquires the connection information according to the identifier of the opposite terminal;
or, the opposite terminal access gateway sends a request for inquiring the position information to the position server, and the request carries the identifier of the opposite terminal;
the position server sends a connection information inquiry request to the connection information server, and the connection information inquiry request carries the identification of the opposite terminal;
and the connection information server acquires the connection information according to the identifier of the opposite terminal.
5. The method of any of claims 1 to 4, further comprising:
and the position server caches the corresponding relation between the opposite terminal identification and the connection information.
6. A connection information acquisition system is characterized in that the system comprises a connection information server and a position server, or comprises the connection information server, an opposite terminal access gateway and the position server, wherein:
the connection information server is used for acquiring connection information; the gateway is also used for transmitting the connection information to an opposite terminal access gateway; or, directly transmitting the connection information to the location server;
the opposite terminal access gateway is used for transmitting the connection information to a position server;
the connection information comprises one or a combination of the following: network name, public land mobile network identification, service quality parameter, and charging information.
7. The system of claim 6,
and the position server is used for returning the position information of the terminal to the opposite terminal access gateway according to the connection information.
8. The system of claim 6,
the opposite terminal access gateway is also used for sending a query request message to the connection information server, and the query request message carries the identifier of the opposite terminal;
the connection information server is used for obtaining the connection information according to the identifier of the opposite terminal.
9. The system of claim 6,
the opposite terminal access gateway is also used for transmitting the data sent by the opposite terminal to the connection information server;
the connection information server is used for acquiring the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway is also used for sending a query request message to the connection information server, and the query request message carries the identifier of the opposite terminal;
the connection information server is used for acquiring the connection information according to the identifier of the opposite terminal;
or,
the opposite terminal access gateway is also used for sending a position information query request to the position server, and carrying the identification of the opposite terminal;
the position server is also used for sending a connection information query request to the connection information server, and the connection information query request carries the identifier of the opposite terminal;
the connection information server is used for obtaining the connection information according to the identifier of the opposite terminal.
10. The system according to any one of claims 6 to 9,
the location server is further configured to cache a correspondence between the peer identifier and the connection information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010607711.7A CN102572681B (en) | 2010-12-27 | A kind of link information acquisition methods and system | |
| PCT/CN2011/076251 WO2012088849A1 (en) | 2010-12-27 | 2011-06-24 | Method and system for obtaining connection information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010607711.7A CN102572681B (en) | 2010-12-27 | A kind of link information acquisition methods and system |
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| Publication Number | Publication Date |
|---|---|
| CN102572681A CN102572681A (en) | 2012-07-11 |
| CN102572681B true CN102572681B (en) | 2016-12-14 |
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