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Method for solving pilot frequency pseudo-random encoding confusion in switching course

A technology of pseudo-random coding and cell identification, applied in electrical components, wireless communication, transmission systems, etc., can solve problems such as differences in processing results and lack of processing methods

Inactive Publication Date: 2009-04-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The implementation of AN switching by different manufacturers handles this problem differently, and the results of the processing are also different, lacking a standard and clear processing method

Method used

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  • Method for solving pilot frequency pseudo-random encoding confusion in switching course
  • Method for solving pilot frequency pseudo-random encoding confusion in switching course

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Embodiment Construction

[0015] The present invention proposes a message interaction during handover between ANs. If the message carries the Pilot PN information of the target cell, the message also carries the cell identification information of the target cell. The cell identification information can be stored in the AN. The cell is uniquely identified, and the location of the current PilotPN is indicated through cell identification information, that is, the cell to which the Pilot PN belongs. The access network judges the target cell participating in the handover according to the Pilot PN and the cell identification information in the message.

[0016] The present invention utilizes the existing 128-bit sector ID SectorID in the protocol as globally unique cell ID information. According to the existing agreement, the value of the SectorID is unique in the AN, and putting the SectorID in the cell information can uniquely identify a cell in the AN. Wherein, the cell identification information describ...

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Abstract

The invention provides a method used for solving pilot frequency pseudorandom coding confusion during switching. When information interaction is processed alternatively between accessed networks, if the information carries the pilot frequency pseudorandom coding of a target subdistrict, the information also carries subdistrict identification information of the target subdistrict. In AN-switched information interaction, the invention increases unique subdistrict identification information overall and uses the subdistrict identification information to indicate the position of current PN, accordingly, the invention can identify further by the subdistrict identification information and causes no confusion, even if the PNs are the same.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for solving pilot pseudo-random coding confusion when switching between Access Networks (AN). Background technique [0002] The value of Pilot Pseudo Noise Code (pilot pseudo-random code, Pilot PN, PN in the following description refers to Pilot PN) is from 0 to 512. In the wireless network configuration, there is a minimum interval between the values ​​of two PNs. If the value of this interval is 4, then only 128 different PNs can be drawn from 0 to 512. A base station usually has three or more cells, and each cell needs to be allocated a PN, so 128 PNs can be allocated to 42 base stations at most. In a large wireless network, there may be far more than 42 base stations that need to use PN, so there will be PN multiplexing. [0003] In the CDMA2000 lxEV-DO system, when performing inter-AN soft handover, the target AN needs to know which Base Station (BS) and whic...

Claims

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Application Information

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IPC IPC(8): H04W36/14H04W36/18H04B1/707
Inventor 罗雪松
Owner ZTE CORP
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