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Method and its system for controlling soft switching link power in CDMA network

A code division multiple access and soft handover technology, applied in the field of code division multiple access, can solve the problems of increasing cell load, increasing system interference, and heavy load, so as to reduce downlink interference, improve system performance, and realize the effect of real-time monitoring

Active Publication Date: 2006-11-08
XFUSION DIGITAL TECH CO LTD
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Problems solved by technology

[0015] One situation is that the soft handover branch with poor propagation environment is allocated the same transmit power as the soft handover branch with good propagation environment, but the allocated downlink transmit power cannot effectively improve the downlink reception performance, but increases the system interference
[0016] Another situation is that the uplink and downlink load of a cell where a soft handover branch is located is relatively heavy, and allocating more power to the soft handover branch will further increase the load of the cell

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  • Method and its system for controlling soft switching link power in CDMA network
  • Method and its system for controlling soft switching link power in CDMA network
  • Method and its system for controlling soft switching link power in CDMA network

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] In the present invention, the downlink code domain transmission power of the soft handover branch of the user terminal is tracked by the base station controller, and the signal-to-interference ratio of the uplink reception is tracked at the same time. And the base station controller uses the downlink code domain transmit power of the soft handover branch with the largest uplink received signal-to-interference ratio of the user terminal as a reference value to obtain the real-time reference downlink code domain transmit power of the user terminal.

[0049] If the difference between the transmit power in the downlink code domain of a certain soft handover branch of the user terminal and the reference downlink code domain transmit power is higher than the set t...

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Abstract

This invention discloses a method and a system for controlling soft switch link power in the CDMA network, which monitors emission power of the down code domain of all soft switch branches and up received S / N ratio of a UE terminal to get the down code domain emission power of the branch with the strongest S / N ratio and takes it as the reference to close the down emission of the soft switch branches with greater emission power but do not play an important part and maintains the up-reception of them to ensure the performance. If an optimum area where the branch with the greatest S / N ratio places changes and its down emission is closed, then the emission of the changed optimum area is started and the initial down domain emission power of the branch is taken as the reference value.

Description

technical field [0001] The invention relates to the code division multiple access technology, in particular to the technology for controlling the soft switching link power in the code division multiple access network. Background technique [0002] In the past 20 years, the development of mobile communication technology has gone through two generations, from the first generation of analog cellular communication technology to the second generation of Global System for Mobile Communications (Global System for Mobile Communications, referred to as "GSM") and Code Division Multiple Access (Code Division Multiple Access, referred to as "CDMA") represents the transition of digital communication technology. Now it is developing towards the third generation mobile communication system (Third Generation Mobile Communications System, referred to as "3G"). Among them, the main standard of 3G will be unified in CDMA technology. [0003] CDMA technology refers to a plurality of user ter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005H04Q7/38
Inventor 段为明
Owner XFUSION DIGITAL TECH CO LTD
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