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Method and system for expanding same-frequency same-pseudorandom noise coverage area of cells

A technology of pseudo-random noise and cell coverage, applied in transmission systems, wireless communications, electrical components, etc., can solve the problems of increased call drop rate and overall system capacity reduction, so as to reduce handover rate and call drop rate, and improve system capacity , reducing the effect of switching regions

Inactive Publication Date: 2013-08-07
ZTE CORP
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Problems solved by technology

A system with a high switching rate will inevitably lead to a reduction in the overall capacity of the system, and the existence of a large number of switching phenomena will easily lead to an increase in the call drop rate

Method used

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  • Method and system for expanding same-frequency same-pseudorandom noise coverage area of cells

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Embodiment Construction

[0027] A system for extending the coverage of a cell with the same frequency and same pseudo-random noise, including a base station transceiver and a base station controller,

[0028] The base station transceiver is used to set one or more virtual cells within the management range, the virtual cells include one or more meta-cells with the same carrier frequency and the same pseudo-random noise value, and set the switching relationship between the meta-cells in the virtual cell For a softer handover relationship, and to perform the same processing on signals belonging to different meta-cells in the same virtual cell; it is also used to process the data of each meta-cell in the virtual cell using the configuration parameters of the reference cell, the reference cell is a virtual One of the meta-cells where the main business is located in the cell. It is also used to identify the source of the reverse signal of the non-reference cell as the identifier of the reference cell after ...

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Abstract

A method and a system for expanding coverage of cells with same frequency and the same pseudo random noise are provided. The method includes the following steps. One or multiple virtual cells are set in networking coverage. Every virtual cell includes one or multiple element cells with the same carrier frequency and the same pseudo random noise value. The handoff relation between the element cells in every virtual cell is set to be softer handoff relation. The base station transceiver processes the signals belonging to the different element cells in the same virtual cell uniformly. The method and the system can decrease dropped call rate and increase system capacity.

Description

technical field [0001] The present invention relates to a time-division wireless communication system mainly based on data services, in particular to extended co-frequency and pseudo-random noise in the EVDO (Evolution, Data Only) system in the Code Division Multiple Access (CDMA) 2000 series standards Method of cell coverage. Background technique [0002] CDMA20001x EVDO technology is a branch of the CDMA2000 standard series and an important international standard for wireless data communication in the Third-Generation Communication System (3G) family. EVDO technology provides a support platform for high-speed wireless data services. The EVDO network can be networked together with the CDMA2000 1X network that provides voice services and low-speed data services, sharing frequency bands. EVDO high-speed data network is currently in a period of large-scale construction in the domestic and international communication markets, and has a bright future. Based on the EVDO network...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04W16/18H04W36/18
CPCH04W36/18
Inventor 刘滔李良斌
Owner ZTE CORP
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