Cellular communication system and cell filtering method thereof

A technology of a cellular communication system and a filtering method, which is applied to the cell filtering of the cellular communication system. The above-mentioned cellular communication system field can solve the problems of large number of CSGs, increased terminal burden, and terminal inability to distinguish cells, etc., to reduce measurement time and measurement Informativeness, effect of reducing measurements

Inactive Publication Date: 2009-08-12
SHANGHAI RES CENT FOR WIRELESS COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 3GPP has conducted some research on femtocells, but the application of femtocells may still bring challenges to related work on new types of networks in the future
In border scenarios, the terminal may not be able to distinguish cells from different operators, in which case the terminal does not need to report these cell information
In addition,

Method used

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  • Cellular communication system and cell filtering method thereof
  • Cellular communication system and cell filtering method thereof
  • Cellular communication system and cell filtering method thereof

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Embodiment 1

[0033] The present invention can be applied in a broadband communication network or a special wireless communication network, especially in the scenarios of handover and access in UMTS, UTRAN, LTE or E-UTRAN networks and remote activation of home base stations.

[0034] The present invention provides the relevant information of suitable neighboring cells for the terminal by establishing the neighbor cell information list in the macro base station and the home base station, and filtering the neighbor list, so that the terminal avoids measuring and reporting some cells that cannot or are not suitable for accessing the cell. Information to reduce terminal measurements, to some extent reduce signaling overhead and improve handover performance.

[0035] In the present invention, each macro base station has a macro tracing cell (MTA, Macro Tracing Area), whose range is the coverage area of ​​the macro base station. A CSG cell within the coverage of a macro base station has a unique ...

Embodiment 2

[0039] figure 2 It is a schematic structural block diagram of a mobile communication system for implementing an embodiment of the present invention. The wireless communication system includes a macro base station, a femto base station, a core network, a mobility management entity / gateway and wireless user equipment. There may be multiple home base stations in a macro base station, and they are connected to the home base station gateway through DSL or other means; the embodiment of the present invention is not limited to figure 2 Structure.

[0040] Multiple CSG cells can belong to a tracking cell (TA), which is different from the surrounding macro cells. Such a tracking cell can be called a CSG TA (refer to the U.S. Patent Ser. No. 12 / 044,491 document), and the surrounding macro cells are relatively Large (for example, covering a few kilometers at least), use macro base station coverage. Femtocells generally provide coverage in small areas such as homes, companies, or caf...

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Abstract

The invention discloses a cellular communication system and a cell filtration method thereof. The communication system comprises user equipment and a plurality of base station devices, and the base station devices comprise a macro base station, a micro base station and a home base station; a neighbor cell list is established in the macro base station and the home base station, and the list comprises neighbor cell information of neighbor macro base station and home base stations; the neighbor cell list comprises the following attributes: neighbor cell information, tracking cell identification of cells, whether the cells are private, whether the cells can be switched, and whether X2 interfaces exist; the neighbor cell information of the macro base station comprises cell information of adjacent macro base stations and home base stations within the coverage range; and the neighbor cell information of the home base station comprises cell information of adjacent home base stations and cell information of macro base stations where the home base stations are positioned. The cellular communication system and the cell filtration method thereof can reduce signaling cost and improve switching performance.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a cell filtering method, in particular to a cell filtering method of a cellular communication system; the invention also relates to the aforementioned cellular communication system. Background technique [0002] In most parts of the world, new networks will be deployed in higher frequency bands, and high frequencies are less penetrating than low frequencies, so femtocells will be an attractive approach. A femtocell is a residential cellular access point for use in home and office environments. It accesses the core network of the mobile operator through the user's broadband connection (eg, DSL), which can compensate for weaker indoor signals and provide the bandwidth required by the network. Femtocells provide high-quality voice, optimal data rates, and cheaper tariffs for calls and connections made at home. Femtocells provide the best coverage for the vast majority...

Claims

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Application Information

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IPC IPC(8): H04W8/16H04W8/26H04W36/18H04W48/08
Inventor 陆晔顼徐晓张建戎璐
Owner SHANGHAI RES CENT FOR WIRELESS COMM
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