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A location information query method, policy server, location server and system
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A policy server and location information technology, applied in the field of communication, can solve problems such as the inability of the communication peer to know, abnormal message transmission, etc.
Inactive Publication Date: 2018-01-26
ZTE CORP
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Abstract
Description
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Problems solved by technology
[0013] The technical problem solved by the present invention is to provide a location information query method, a policy server, a location server and a system, so as to solve the problem caused by the fact that the communication peer cannot know the correct location information of the terminal in the scenario where the terminal has multiple location information. The problem of abnormal file transmission
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Embodiment 1
[0124] Figure 5 is based on figure 2 In the scenario of the system architecture, the flow chart of the peer terminal querying the terminal location information when sending data to the terminal. The specific steps are described as follows:
[0125] Step 500, the terminal has registered on the location server through the terminal access gateway 1 (MAG-MN1) and the terminal access gateway 2 (MAG-MN2).
[0126] Step 501, the communication peer (CN) sends data to the terminal, and the data reaches the peer access gateway (MAG-CN).
[0127] Step 502, if the terminal identifier location mapping information is not cached, the peer access gateway may cache the data; this step is optional.
[0128] Step 503, the peer access gateway requests the location server to inquire about the location information of the terminal, carrying the terminal identifier.
[0129] Step 504, the location server obtains the location information according to the terminal identification, and returns a re...
Embodiment 2
[0139] In another embodiment, in step 505 of the above-mentioned embodiment 1, the peer access gateway may transmit the first message or some messages including the first message or all messages to the policy server (on the peer access gateway) Buffering the remaining messages), the policy server sends the message to the access gateway of the terminal after obtaining the location information of the terminal, and the access gateway then forwards the message to the terminal. Other processing is consistent with the above-mentioned embodiment 1, and will not affect the elaboration of the present invention, so the description will not be repeated here.
Embodiment 3
[0141] The policy server can be set up together with the peer access gateway, that is, the peer access gateway has a local policy. At this time, step 505 and step 506 are implemented internally by the access gateway, and other steps are consistent with Embodiment 1 or Embodiment 2, and will not affect the elaboration of the present invention, so the description will not be repeated here.
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Abstract
The invention discloses a location information query method, a policy server, a location server and a system. The method includes: when a first terminal sends data to a second terminal through a first access gateway, the first access gateway sends data to the policy server and the location server respectively. The location server requests the location information of the second terminal; the first access gateway sends data to the second terminal corresponding to the location information in the intersection according to the intersection of the first location information returned by the location server and the second location information returned by the policy server. access gateway. The present invention solves the problem of abnormal message transmission caused by the failure of the communication peer to learn the correct location information of the terminal in the scenario where the terminal has multiple location information.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a location information query method, a policy server, a location server and a system. Background technique [0002] The IP address in the TCP / IP (Transmission Control Protocol / Internet Protocol, Transmission Control Protocol / Internet Protocol) protocol widely used in the existing Internet has dual functions. It is also used as the identity of the network interface of the transport layer host. However, when the host mobile becomes more and more common, the semantic overload defect of this IP address becomes more and more obvious. 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 lead to a heavier and heavier routing load, and the change of the host identity will also cause the interruption of applications and connections. The purpose of the separation of identity and location i...
Claims
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Application Information
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