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Switching method and switching network

A network and terminal handover technology, applied in the field of communication, can solve problems such as time extension, achieve the effect of improving the success rate of handover and reducing the delay of handover preparation

Active Publication Date: 2007-10-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The present invention provides a terminal handover method and a handover network, which are used to solve the problem in the existing handover process that when the handover fails, the e-NodeB to be handed over is reselected and the time delay is too long

Method used

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  • Switching method and switching network
  • Switching method and switching network
  • Switching method and switching network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0189] Referring to Fig. 13, it is a schematic flow chart of embodiment 1. As can be seen from the figure, it mainly includes the following steps:

[0190] S1301. The terminal sends a test report to the source e-NodeB.

[0191] S1302. The source e-NodeB makes a handover decision, and selects multiple candidate target e-NodeBs.

[0192] After receiving the test report, the source e-NodeB makes a handover decision according to the obtained RRM information of the neighboring cells, and determines multiple target e-NodeBs.

[0193] S1303. The source e-NodeB sends the context of the terminal to each target e-NodeB respectively, which also includes a list of target e-NodeBs and priority information among target e-NodeBs.

[0194] S1304. After receiving the context, the target e-NodeB judges whether its own priority is the highest according to the priority information, and if yes, executes step S1305; otherwise, enters step S1310.

[0195] S1305. The target e-NodeB allocates resource...

Embodiment 2

[0203] Referring to Figure 14, the process of Embodiment 2 is as follows:

[0204] S1401. The terminal sends a test report to the source e-NodeB.

[0205] S1402. The source e-NodeB makes a handover decision, and selects multiple candidate target e-NodeBs.

[0206] S1403. The source e-NodeB sends the terminal handover request to each target e-NodeB respectively, which contains a list of target e-NodeBs and priority information among target e-NodeBs.

[0207] S1404. After the target e-NodeB receives the terminal handover request, if it determines that its own priority is the highest according to the priority information, if yes, go to step S1405; otherwise, go to step S1411.

[0208] S1405. The target e-NodeB allocates resources for the terminal.

[0209] S1406. The source e-NodeB judges whether the resource allocation of the target e-NodeB is successful, and if successful, executes step S1407, and if not, executes step S1409.

[0210] S1407. The source e-NodeB sends a handov...

Embodiment 3

[0218] Fig. 15 shows the schematic flow sheet of embodiment 3 of the inventive method, and concrete process is as follows:

[0219] S1501. The terminal sends a measurement report to the source e-NodeB.

[0220] S1502. The source e-NodeB makes a handover decision, and selects multiple candidate target e-NodeBs.

[0221] In this step, the source e-NodeB selects multiple target e-NodeBs, and prioritizes these target e-NodeBs.

[0222] The priorities of the above-mentioned terminals can be preset, or modified statically, or dynamically adjusted online.

[0223] For the convenience of description, the target e-NodeB with the highest priority in the target e-NodeB list is referred to as the first target e-NodeB. According to the order of priority, it is the second target e-NodeB, the third target NodeB and so on are deduced by analogy, the Nth priority is called the e-NodeB, and N is an integer greater than 1.

[0224] S1503. According to the target e-NodeB list determined in ste...

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Abstract

The method comprises: a) selecting the first destination switch net element as the destination switch net element; B) sending a terminal switch request to the first destination net element, which carries the information about the a standby destination switch net element; c) if the first destination switch net element allows the terminal to be switched into it; then the terminal is switched into it; otherwise, the first destination net element relays the switch request of the terminal to the standby destination switch net element; the terminal is switched into the standby destination net element. The terminal switch request carries the information of the destination e-NodeB such that when a switch from source e-NodeB to destination e-NodeB fails, the invention can send the terminal switch request to a second or third standby destination e-NodeB.

Description

technical field [0001] The invention relates to the communication field, in particular to a terminal switching method and a switching network in mobile communication. Background technique [0002] The Universal Mobile Telecommunications System (UMTS) is a third-generation mobile communication system using the WCDMA air interface technology, and the UMTS system is usually also called a WCDMA communication system. The UMTS system adopts a structure similar to that of the second generation mobile communication system, including a radio access network (Radio Access Network, RAN) and a core network (CoreNetwork, CN). Among them, the wireless access network is used to handle all wireless-related functions, while the CN handles all voice calls and data connections in the UMTS system, and realizes switching and routing functions with external networks. The CN is logically divided into a circuit switched domain (Circuit Switched Domain, CS) and a packet switched domain (Packet Switc...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04W36/08
Inventor 邱勇谢明江杭大明王宗杰
Owner HUAWEI TECH CO LTD
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