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Inverse link catching method in mobile communication system

A technology of mobile communication system and reverse link, which is applied in the field of reverse link capture, can solve the problem of long reverse capture terminal time, etc., and achieve the effect of improving soft handover performance, performance and reliability

Inactive Publication Date: 2008-04-16
ZTE CORP
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Problems solved by technology

[0003] In order to solve the problems existing in the prior art, the object of the present invention is to provide a reverse link acquisition method in the mobile communication system, which solves the problem that the current system reverse captures the terminal for too long, and improves the soft handoff capability of the system

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  • Inverse link catching method in mobile communication system
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  • Inverse link catching method in mobile communication system

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Embodiment Construction

[0015] The present invention introduces a time constant correction factor based on the existing capture algorithm for the current position of the user, and the base station judges whether to capture the terminal through the received energy of the DRC channel and the received energy of the pilot channel of the terminal The DRC channel to indicate whether the system reversely captures the terminal.

[0016] The technical solution of the present invention mainly includes: when capturing the reverse link of the terminal, introducing a time constant correction factor; the base station dynamically adjusts the time constant correction factor α according to the energy of the received pilot channel of the terminal; the time constant The correction factor α is inversely proportional to the energy of the pilot channel received by the terminal, so that the efficiency of the acquisition algorithm can reflect the changes in the wireless environment in real time, improve the acquisition effic...

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Abstract

The invention discloses a capture method for a reverse link in a mobile communication system, and relates to a reverse link capture method. The invention aims to settle the problem that time for the terminal capture is too long and the reliability is low with a prior method for the reverse link capture. When the reverse link of the terminal is captured with the invention, a time constant revision factor is introduced. A base station dynamically adjusts the time constant revision factor according to the received energy of a pilot frequency of the terminal. The accumulated energy of a channel is controlled according to the arithmetic data speed of the time constant revision factor. If the accumulated energy is more than a reverse capture threshold, the reverse link capture is successful. Otherwise, the reverse link capture fails. The capture time of the system is reduced, and the soft switching performance of the system is promoted.

Description

technical field [0001] The present invention relates to a reverse link acquisition method in a wireless mobile communication system, in particular to a reverse link acquisition method in a forward time division mode and reverse code division multiple access wireless mobile communication system. Background technique [0002] Code division multiple access technology is the mainstream technology of the third generation wireless communication. Due to the application of code division multiple access, the soft handover in the current cellular wireless communication has become a key technology. In the soft handover process, the system quickly captures the terminal to speed up the handover process. The algorithm to improve the system capacity is to realize this function and Key algorithms to improve user experience with services. The acquisition of terminals in the current mobile communication system is divided into forward acquisition (namely system downlink acquisition terminal) ...

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Application Information

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IPC IPC(8): H04Q7/38H04B1/707H04B7/26
Inventor 程国棉
Owner ZTE CORP
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