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Alien system switching or re-selection

A technology of inter-system handover and network management system, which is applied in the field of terminal handover and cell reselection technology, and can solve problems such as load information interaction, cell reselection, and incapable terminal handover

Inactive Publication Date: 2008-09-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the handover and cell reselection are mainly performed on the radio access network (Radio Access Network, "RAN") side, such as at the base station side, access network devices of different systems cannot communicate with each other in the prior art. Interact with load information, so that terminal handover and cell reselection cannot be combined with load conditions

Method used

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  • Alien system switching or re-selection
  • Alien system switching or re-selection
  • Alien system switching or re-selection

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0030] The first embodiment of the present invention relates to an inter-system handover or reselection method. The network side of this embodiment includes two systems (system 1 and system 2). The cell under the radio access network node 1 (RAN1) of system 1 is cell 1 (CELL1), and the radio access network node 2 of system 2 ( The cells under RAN2) include cell 2 (CELL2), in which RAN1 is connected to the core network (Core Net, "CN" for short) node CN1 of system 1, and RAN2 is connected to the core network node CN2 of system 2.

[0031] In this embodiment, the RAN to which the cell belongs judges the load status of the cell, sets the load threshold, and notifies the RAN of the cell of a different system adjacent to the cell of the load ...

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Abstract

The invention relates to a wireless communication field and discloses switching or re-selection of different systems to result in more balanced load between different systems. In the invention, an RAN node in a first system obtains load information of a cell in a second system adjacent to a subordinate cell of the node; the RAN node of the first system assists a terminal inside the subordinate cell of the node to carry out the switching or re-selection of the cell in the second system according to the obtained load information. The RAN node of the first system can require the load information periodically or when switching or judgment needs to be carried out, and an RAN node or a network management system of the second system can also send out the load information actively and periodically or when triggered by an event.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to terminal switching and cell reselection technologies. Background technique [0002] With the development of high technology marked by communication technology and computer technology, people's life has undergone tremendous changes with each passing day. The development of cellular mobile communication has brought great convenience to users, and its development has gone through three generations. [0003] In all cellular mobile communication technologies, when a terminal leaves a cell and enters another cell, the signal received by the terminal from the original cell must become weaker and weaker, and the signal it receives entering the cell will also become weaker. stronger. Therefore, the terminal needs handover or cell reselection to the newly entered cell. [0004] If the terminal is in a connected state, in order to maintain the communication quality of the ter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/26
Inventor 谢铂云
Owner HUAWEI TECH CO LTD
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