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Method of scanning cells based on lbs information and selecting heterogeneous cells

A technology of cell selection and base station information, applied in the field of mobility, can solve the problems of increasing the time spent on scanning, increasing the waiting time for switching and cell selection, etc., and achieve the effect of reducing waiting time and reducing the time spent on scanning

Inactive Publication Date: 2013-09-11
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Different from the cell selection between the same kind of cells, since several different types of cells will be scanned to support the cell selection between different types of cells, the time spent on scanning will be increased, and the waiting time for handover and cell selection will be increased time

Method used

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  • Method of scanning cells based on lbs information and selecting heterogeneous cells
  • Method of scanning cells based on lbs information and selecting heterogeneous cells
  • Method of scanning cells based on lbs information and selecting heterogeneous cells

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Embodiment Construction

[0036] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. However, various modifications can be made to the following embodiments of the present invention, and the scope of the present invention is not limited to the following embodiments.

[0037] In the present invention, a method of supporting different kinds of cell selection of a mobile station based on location information will be described in consideration of a cell selection process and signal messages used in the cell selection process.

[0038] figure 2 is a flowchart illustrating a method of scanning cells based on location information according to one embodiment of the present invention.

[0039] First, the mobile station (MS) sets an auxiliary field of a registration request message, ie, a handover support field, and notifies a base station (BS) whether to support handover based on location information when performin...

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Abstract

A method of scanning cells based on location based service (LBS) information and selecting heterogeneous cells is provided. The method includes, at a mobile station, setting a supplementary field of a registration request message and notifying a base station whether or not handover based on location information is supported, while performing a network entry process, generating location based service (LBS) information while scanning is performed using the coordinates of base stations of an LBS advertisement message received from the base station, if channel quality measured by the mobile station is less than a threshold value, including the generated LBS information in a scanning report message and transmitting the scanning report message to the base station, receiving recommended base station information of the heterogeneous cells selected based on the LBS information from the base station, and performing the scanning on the basis of the recommended base station information. By this configuration, it is possible to reduce a time consumed for the scanning performed by the mobile station and reduce the latency of cell selection / reselection / handover, by reducing the number of target cells which will be scanned by the mobile station on the basis of the LBS information of the mobile station in the scanning process which is performed before the cell selection / reselection / handover between the heterogeneous cells.

Description

technical field [0001] The present invention relates to mobility between IEEE 802.16m cells and non-802.16m cells, and in particular, to scanning different types of cells based on the location-based service (LBS) information of the mobile station using recommended cells determined by the base station. The method of neighboring base stations of the cell. Background technique [0002] The IEEE802.16m system supports communication between cells of the same type and cells of different types, but the existing IEEE802.16e system only supports communication between cells of the same type. [0003] figure 1 is a diagram showing an example of a cell selection procedure performed at a mobile station in the IEEE802.16e system. [0004] When the mobile station is powered on, the mobile station receives downlink / uplink (DL / UL) mapping and downlink channel descriptor / uplink channel descriptor (DCD / UCD) messages from the current cell, and obtains UL / DL parameters, and perform synchroni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W48/18
CPCH04W64/006H04W48/18H04W48/16H04W36/32H04W88/06H04W48/20
Inventor 朴基源柳麒善李真
Owner LG ELECTRONICS INC
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