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Method, device and system for regulating and indicating transmission power

A transmission power and indication technology, applied in the field of communication, can solve problems such as the lack of formulation of E-UCCH reception and demodulation performance

Active Publication Date: 2012-03-14
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the current protocol, there is no relevant mechanism to ensure the reception and demodulation performance of E-UCCH

Method used

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  • Method, device and system for regulating and indicating transmission power
  • Method, device and system for regulating and indicating transmission power

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Embodiment Construction

[0032] In a system using HSUPA technology, in order to ensure the E-UCCH demodulation performance on the network side, in the embodiment of the present invention, the network side device (for example, RNC) determines at least one carrier used by the terminal, and determines the at least one carrier corresponding to the at least one carrier a preset reception demodulation threshold for correctly demodulating E-UCCH information, and sending the reception demodulation threshold to the terminal, instructing the terminal to obtain a corresponding threshold transmit power according to the reception demodulation threshold, and adjusting the target transmit power of the terminal on the at least one carrier based on the threshold transmit power, so that the target transmit power is not less than the threshold transmit power. Correspondingly, the terminal determines at least one carrier used locally, and receives at least one reception demodulation threshold sent by the network side, whe...

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Abstract

The invention discloses a method, a device and a system for regulating and indicating transmission power and aims to ensure the demodulation performance of an enhance-uplink control channel (E-UCCH) of a network side in a system employing a high speed unlink packet access (HSUPA) technology. The method comprises the following steps that: a radio network controller (RNC) informs user equipment (UE) of knowing the receiving and demodulation threshold of E-UCCH information on an enhance-physical uplink channel (E-PUCH) through a signaling, then the UE sets initial transmission power on the E-PUCH as threshold transmission power corresponding to the receiving and demodulation threshold, therefore, when the UE performs incremental regulation on the initial transmission power to acquire target transmission power on the E-PUCH later, even if the target transmission power is lower than authorization transmission power acquired on the E-PUCH by the UE, the information demodulation performance of the E-UCCH of the E-PUCH is ensured in priority, and then the service reliability of a system is improved. The invention also provides the device and the system corresponding to the method.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method, device and system for adjusting and indicating transmission power. Background technique [0002] Currently, Time Division Duplex (TDD) systems introduce High Speed ​​Uplink Packet Access (HSUPA) technology. In multi-carrier HSUPA, the transmit power of the UE is limited, that is, the authorized power of a certain carrier given to the UE by the base station (NodeB) exceeds the maximum transmit power of the UE on the carrier. Therefore, the UE is performing enhanced transmission format combination When selecting (E-TFC), it is necessary to consider reducing the transmit power used on each carrier. In multi-carrier HSUPA, within each carrier, the uplink enhanced control channel (E-UCCH) and uplink enhanced traffic channel (E-DCH) are multiplexed on the same code combination transport channel (CCTrCH), and then mapped to the same uplink In the enhanced physical channel (...

Claims

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Application Information

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IPC IPC(8): H04W52/18
CPCH04W52/04
Inventor 刘建华齐亮严杲
Owner DATANG MOBILE COMM EQUIP CO LTD
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