Self adaptive power control method for up-high speed special physical control channel

A power control, dedicated physical technology, applied in the direction of transmission control/equalization, digital transmission system, electrical components, etc., can solve the problem that the network cannot make timely judgments and respond, and improve the response speed and accuracy, power control The effect of optimizing and reducing the processing burden

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

On the other hand, since the signal quality of each link in the soft handover state is changing rapidly, it is impossible for the network to judge and respond in time

Method used

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  • Self adaptive power control method for up-high speed special physical control channel
  • Self adaptive power control method for up-high speed special physical control channel
  • Self adaptive power control method for up-high speed special physical control channel

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Embodiment Construction

[0028] An adaptive power control method of an HS-DPCCH channel in the present invention comprises that when in a soft handover state, the mobile terminal adjusts the actual transmission power of the uplink HS-DPCCH channel according to the channel quality change requirements of each link; When switching states, the mobile terminal performs power control on the uplink HS-DPCCH channel following the DPCCH channel. The specific process of this method is as follows:

[0029] The SRNC configures the initial power offset of the HS-DPCCH channel relative to the uplink DPCCH channel on the network side in combination with the current state of the mobile terminal (soft handover or non-soft handover). The mobile terminal takes the power offset configured by the network side as the initial value of the adaptive processing. The power offset parameters include the power offset values ​​of ACK, NACK and CQI.

[0030] Assuming that the network expects the bit error rate of ACK / NACK and CQI...

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Abstract

This invention puts forward an adaptive power control method for the HS-DPCCH channel including: a mobile terminal modulates the actual emission power of the up HS-DPCCH channel based on the requirement on the channel quality of the links at the soft switch state, which solves the problem that the network sends special information when needing to adjust the power offset of the up HS-DPCCH channel and reduces load of the air interface at the same time when reducing the process load of the system signaling.

Description

technical field [0001] The invention relates to a channel power control method, in particular to a channel adaptive power control method. Background technique [0002] As an upgrade technology of the WCDMA standard, High Speed ​​Downlink Packet Access (HSDPA) is an important feature of 3GPP R5 version. Transmission (Hybrid-Automatic Repeat request, hereinafter referred to as HARQ), as well as a series of key technologies such as fast scheduling of base stations, can increase the downlink data transmission rate to 14Mbit / s (theoretical value), realize downlink high-speed data transmission, and thus help operation reduce operating costs and increase the attractiveness of their business. [0003] HSDPA introduces three channels in the air interface, which are the high-speed physical downlink shared channel (High Speed ​​Physical Downlink Shared Channel, hereinafter referred to as HS-PDSCH), which is responsible for downlink transmission of user data, and the downlink, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005H04L1/00
Inventor 张静荣
Owner XFUSION DIGITAL TECH CO LTD
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