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Data processing method, switching method, apparatus and system based on trans-HSGW switching

A data packet and data channel technology, applied in the field of communication, can solve problems such as data packet loss

Inactive Publication Date: 2008-10-22
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The present invention aims to provide a data processing method, device and system based on cross-HSGW switching and a cross-HSGW switching method to solve the problem that the switching of wireless channels may occur before the data forwarding channel is established, and the data packets delivered to the S-HSGW Cannot continue to send to UE, it will cause the problem of data packet loss

Method used

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  • Data processing method, switching method, apparatus and system based on trans-HSGW switching
  • Data processing method, switching method, apparatus and system based on trans-HSGW switching
  • Data processing method, switching method, apparatus and system based on trans-HSGW switching

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Embodiment 1

[0051] According to an embodiment of the present invention, a data processing method based on cross-HSGW handover is provided.

[0052] Figure 4 is a flowchart of a data processing method based on cross-HSGW handover according to an embodiment of the present invention, such as Figure 4 As shown, the method includes:

[0053] Step S402, the source access gateway receives first signaling from the source access network, wherein the first signaling carries indication information for instructing the source access gateway to cache downlink data packets;

[0054] Step S404, the source access gateway acquires indication information from the first signaling;

[0055] Step S406, the source access gateway receives the downlink data packet;

[0056] Step S408, the source access gateway caches the downlink data packets according to the indication information.

[0057] Wherein, after step S408, the above method further includes:

[0058] (82) When the data channel between the source ...

Embodiment 2

[0063] According to an embodiment of the present invention, a handover method across HSGWs is provided.

[0064] Figure 5 is a flow chart of a cross-HSGW handover method according to an embodiment of the present invention, such as Figure 5 As shown, the method includes:

[0065] Step S502, the source access network triggers the wireless channel switching of the user equipment;

[0066] Step S504, the source access network and the target access network interact session transmission signaling;

[0067] Step S506, the source access network sends a first signaling to the source access gateway, wherein the first signaling carries indication information for instructing the source access gateway to buffer the downlink data packet;

[0068] Step S508, the source access gateway acquires indication information from the first signaling, and buffers the received downlink data packet according to the indication information;

[0069] Step S510, the source access network sends a sessio...

Embodiment 3

[0079] Figure 6 is a detailed flow chart of a cross-HSGW handover method according to an embodiment of the present invention, such as Figure 6 shown, including the following steps:

[0080] Step S601, UE accesses SAE network through S-eAN and S-HSGW, and communicates data with external PDN through P-GW;

[0081] Step S602, the UE sends a pilot signal strength report to the S-eAN, and the S-eAN decides to initiate a handover and notifies the UE;

[0082] Step S603, S-eAN sends "A16 Session Transfer Request" signaling to T-eAN, wherein, "A16 Session Transfer Request" signaling carries the HRPD session information of the UE to be handed over currently; when T-eAN receives " After the A16 session transfer request" signaling, send the "A16 session transfer response" signaling to the S-eAN;

[0083] Step S604, S-eAN sends "A10:Xoff" signaling (that is, the above-mentioned first signaling) to S-HSGW, wherein, "A10:Xoff" signaling carries information for instructing the source ac...

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Abstract

The invention discloses a data processing method, a switching method, a device and a system based on cross HSGW switching, wherein, the data processing method based on cross HSGW switching comprises the following steps that: a source access gateway receives a first signaling from a source access network, wherein, the first signaling carries instruction information used for instructing a source access gateway to buffer downlink data packets; the source access gateway obtains the instruction information from the first signaling; the source access gateway receives the downlink data packets; and the source access gateway buffers the downlink data packets according to the instruction information. The data processing method, the switching method, the device and the system based on cross HSGW switching realize lossless transmission of data packets.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data processing method, handover method, device and system based on cross-HSGW (HRPD Serving Gateway, HRPD Serving Gateway) handover. Background technique [0002] 3GPP (Third Generation Partnership Project, 3rd Generation Partnership Project) SAE (Evolved System Architecture, System Architecture Evolved) consists of E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network), MME (Mobility Management Unit, Mobility Management Entity), S-GW (Serving Gateway, Serving Gateway), P-GW (Packet Data Network Gateway, Packet Data Network Gateway), HSS (Home Subscriber Server, Home Subscriber Server), 3GPP AAA server ( 3GPP authentication authorization accounting server), and other supporting nodes. Among them, E-UTRAN is the access network of the SAE system; MME is responsible for the work related to the control plane; S-GW is the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/66H04Q7/38H04Q7/22H04W36/14
Inventor 毕以峰瑞杰士・博哈勒宗在峰
Owner ZTE CORP
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