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Worldwide interoperability for microwave access (Wimax) system capable of realizing non-fixed anchor point switch and switch method thereof

A technology without fixed and anchor points, applied in wireless communication, electrical components, connection management and other directions, it can solve the problems of dual IP address identities, detours of data packet paths, aggravating transmission delay and wasting bandwidth.

Inactive Publication Date: 2011-07-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0036] To sum up, the handover in the existing WiMAX system requires the support of fixed anchor points to complete. The introduction of fixed anchor points brings about the problem of circuitous data packet paths, which increases transmission delay and bandwidth waste.
Applying the identity identification and location separation technology to the WiMAX network can theoretically support the mobility of WiMAX traditional terminals without a fixed anchor point, solve the problem of roundabout data packet paths, and achieve the purpose of solving the dual identity of IP addresses, but how Based on the WiMAX system to realize handover without a fixed anchor point, there is no related solution at present

Method used

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  • Worldwide interoperability for microwave access (Wimax) system capable of realizing non-fixed anchor point switch and switch method thereof
  • Worldwide interoperability for microwave access (Wimax) system capable of realizing non-fixed anchor point switch and switch method thereof
  • Worldwide interoperability for microwave access (Wimax) system capable of realizing non-fixed anchor point switch and switch method thereof

Examples

Experimental program
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Effect test

corresponding Embodiment 2

[0196] Further, (corresponding to embodiment two, three)

[0197] The ILCR also includes a tunnel establishment module for establishing a forwarding tunnel with the source ILCR for the cut-in terminal, or for establishing a forwarding tunnel with the target ILCR for the cut-out terminal, and releasing the forwarding tunnel after the handover is completed;

[0198] During the switching process, the packet forwarding module in the ILCR forwards the received data packets sent to the switching-out terminal to the source AGW first. Target ILCR; forward the received data packet to the inbound terminal to the target AGW through the tunnel with the target AGW.

[0199] Further, (corresponding to embodiment two, three)

[0200] The switch-out control module is also used to send the identification information of the source ILCR to the target AGW; the switch-in control module is also used to send the identification information of the source ILCR to the target ILCR when the selected targ...

Embodiment 1

[0209] Figure 5 is based on image 3 The network architecture of the WiMAX system using the identity identification and location separation technology shown in the illustration realizes the first flow chart of terminal handover without a fixed anchor point. In the scenario of using forwarding tunnels between AGWs for data forwarding during the handover process, the flow includes:

[0210] Step 501, a handover occurs after the terminal moves, and after the W-ASN anchored handover is completed, the terminal switches from the source base station to the target base station, and a data channel is established between the source AGW and the target AGW;

[0211] The terminal can complete the handover of the W-ASN anchor according to the existing standard. After the source AGW and the target AGW establish a data channel, the downlink and uplink data packet paths between the terminal and the communication peer are D51 and D52:

[0212] Unless otherwise specified, the terminal mention...

Embodiment 2

[0261] This embodiment is based on the network architecture of the WiMAX system using the identity identification and location separation technology of system 1. In the process of realizing the handover without fixed anchor point, the forwarding tunnel between ILCRs is used for data forwarding, and the target ILCR initiates the data forwarding between ILCRs. In the scenario where the forwarding tunnel is established, the specific steps are as follows:

[0262] Step 601 is the same as step 501 . Thereafter, the downlink and uplink data message paths of the terminal are D61 and D62, wherein D61 is the same as D51, and D62 is the same as D52.

[0263] During the data packet sending process, the source AGW maintains the connection information between the terminal and the communication peer.

[0264] Step 602, the same as step 502;

[0265] Step 603, the source AGW sends an anchor DPF handover request to the target AGW, which carries the identification information of the source I...

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Abstract

The invention provides a worldwide interoperability for microwave access (Wimax) system capable of realizing non-fixed anchor point switch and a switch method thereof. After a terminal finishes a Wimax access service network anchored switch, a source access gateway (AGW) transmits an AGW switch request to the target AGW; the target AGW allocates a new resource identifier (RID) for the terminal, and stores the mapping information of the terminal access identifier (AID) and the new resource identifier (RID); the target AGW initiates an RID registration process and updates the RID of the terminal which is stored by a home identity location register (ILR) of the terminal; the target AGW transmits an AGW switch response to the source AGW, and the source AGW releases resources allocated to the terminal after the switch is finished. Messages between the terminal and the opposite ends of the terminal are forwarded via the target AGW. According to the invention, based on a Wimax system, a non-fixed anchor point switch is realized and an alternative route is avoided.

Description

technical field [0001] The present invention relates to a Worldwide Interoperability for Microwave Access system, in particular to a Wimax system capable of realizing switching without a fixed anchor point and a switching method thereof. Background technique [0002] In the traditional Transmission Control Protocol / Internet Protocol (TCP / IP) network environment, IP provides routing functions for the Internet, and it assigns logical addresses to all nodes (including hosts and routers). , that is, the IP address, and each port of each host is assigned an IP address. An IP address includes a network prefix and a host part. The IP addresses of all hosts on the same link usually have the same network prefix and different host parts. This allows IP to perform routing based on the network prefix part of the IP address of the destination node, so that the router can store a simple network prefix route in order, instead of having to store a separate route for each host. In this cas...

Claims

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Application Information

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IPC IPC(8): H04W8/08H04W36/08
CPCH04W36/12H04W76/021H04W76/11
Inventor 霍玉臻吴强符涛
Owner ZTE CORP
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