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Multipath searching method and device of adaptive adjustment search windows

An adaptive adjustment and multi-path search technology, applied in the field of multi-path search, can solve problems such as service performance degradation, achieve the effects of improving hardware usage efficiency, ensuring demodulation performance, and saving hardware resources

Inactive Publication Date: 2013-10-23
ZTE CORP
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AI Technical Summary

Problems solved by technology

Avoid using the direct copy of the existing link search window position information to set the target cell search window when the multi-path delay deviation of multiple links in the macro-diversity is large, resulting in a decline in service performance caused by some multi-path falling outside the search window The problem

Method used

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  • Multipath searching method and device of adaptive adjustment search windows

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Embodiment Construction

[0034] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific examples, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention .

[0035] A multipath search method for adaptively adjusting a search window provided in an embodiment of the present invention includes the following steps:

[0036] (1) The cell is established, and the initial value of the uplink search window for softer handover is set to be the maximum search window, wherein the maximum search window configures the radius coverage of the cell according to the network cable network controller RNC and adds a protection segment L and set;

[0037] In this step, when the cell is established, the softer handover newly added link enables wide search, and the initial value of the uplink search window of the softer handov...

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Abstract

The invention relates to a multipath searching method and device of adaptive adjustment search windows. The method comprises the following steps: a community is established, and an initial value of a softer switch newly added uplink search window is configured to be a search windows(max), which is set according to a radius coverage area together with a protection segment L configured to the community by a radio network controller RNC; and the size of the softer switch newly added uplink search window is dynamically adjusted under the search windows(max) according to link gravity center distribution of a searched effective-path-to-normal-path search, and a success rate threshold of a softer switch wide-path-to-normal-path search. The method and device provided by the invention are adopted so that an uplink initial search window can be adaptively adjusted in different network scenarios so as to ensure demodulation performance of the uplink signal, and hardware resources can be effectively saved and the hardware utilization rate is enhanced.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular, to a multipath search method and device for adaptively adjusting a search window in combination with multipath distribution, especially to a macro in a WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) system Under the condition of diversity, a softer handover method is added to set the size of the uplink search window of the wireless link, which can adapt to the large difference in the multipath time offset of multiple links caused by multiple network distribution types such as repeaters Scenarios to ensure receiving performance, and can also effectively save baseband processing hardware resources. Background technique [0002] Since the mobile communication system adopts a cellular structure, when a mobile station crosses a cell divided by space, it must perform handover, that is, complete the transfer of the air interface from the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/7083H04B1/711
Inventor 王燕云谭伟霍燚谢澜涛
Owner ZTE CORP
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