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Power control method for retransmission acknowledgment indication channel in high-speed uplink packet access

A technology for confirming indication channels and power control, applied in power management, wireless communication, electrical components, etc., can solve the problem that E-HICH and other channels cannot be guaranteed to be in the same time slot, etc.

Active Publication Date: 2011-12-28
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It can be seen that the existing method of controlling the transmission power of E-HICH mainly refers to the power of other channels in the same time slot as E-HICH, but in actual situations, it cannot be guaranteed that E-HICH and other channels always in the same time slot

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  • Power control method for retransmission acknowledgment indication channel in high-speed uplink packet access
  • Power control method for retransmission acknowledgment indication channel in high-speed uplink packet access
  • Power control method for retransmission acknowledgment indication channel in high-speed uplink packet access

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Embodiment 1

[0054] The methods described in Embodiment 1, Embodiment 2 and Embodiment 3 are all described by taking the adjustment of the power gain factor of the feedback information of a certain UE as an example. In practical applications, the NodeB can adjust the power gain factor according to the above method. The power gain factor of each feedback information is multiplexed on the same E-HICH, that is, the transmission power of each feedback information is adjusted, so as to control the power of the E-HICH and achieve the purpose of the present invention.

[0055] When performing power adjustment on multiple feedback information multiplexed on the same E-HICH, the mutual interference among the feedback information should also be taken into consideration. When the number of feedback information multiplexed on the same E-HICH is relatively large, the mutual interference between feedback information will be more serious; when the number of feedback information multiplexed on the same E-H...

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Abstract

The invention discloses a power control method for a retransmission acknowledgment indication channel in high-speed uplink packet access, comprising: detecting the information transmission error probability on the relevant channel of each feedback information within a preset time window; If the probability is greater than the corresponding first preset value, the power gain factor of the corresponding feedback information is adjusted up; if the information transmission error probability is smaller than the corresponding second preset value, the power gain factor of the corresponding feedback information is lowered. In the present invention, based on the transmission error probability of the relevant channel, the power gain factor of each feedback information multiplexed on the E-HICH is adjusted, that is, the transmission power of each feedback information is adjusted, and the E-HICH control of the power.

Description

technical field [0001] The present invention relates to high-speed uplink packet access (HSUPA, High Speed ​​Uplink Package Access) technology, in particular to a retransmission acknowledgment indicator channel (E-HICH, E-DCHHARQ Acknowledgment Indicator Channel) power control method in HSUPA. Background technique [0002] In order to improve the throughput of network data transmission, improve cell coverage, and reduce data transmission delay, time division duplex (TDD) system introduces HSUPA technology. When using HSUPA technology to transmit data, the process is as follows: figure 1 shown. In step 101, a base station (NodeB) sends resource scheduling information to a user equipment (UE, User Equipment) through a downlink absolute grant channel (E-AGCH, Enhanced Uplink Absolute Grant Channel). In step 102, the UE sends data to the NodeB through an uplink physical channel (E-PUCH, Enhanced Uplink Physical Channel) on the physical resources scheduled by the NodeB after a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/48H04W52/36
Inventor 朱向前秦飞周海军
Owner DATANG MOBILE COMM EQUIP CO LTD