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Method, device and system for adjusting transmission power and its indication

A technology of transmit power and indication, applied in the field of communication, can solve the problem of not formulating E-UCCH reception and demodulation performance, etc.

Active Publication Date: 2016-05-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 adjusting transmission power and its indication
  • Method, device and system for adjusting transmission power and its indication
  • Method, device and system for adjusting transmission power and its indication

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Embodiment Construction

[0032] In a system using the HSUPA technology, in order to ensure the E-UCCH demodulation performance on the network side, in this embodiment of the present invention, the network side device (eg, RNC) determines at least one carrier used by the terminal, and determines the corresponding at least one carrier a preset reception and demodulation threshold for correctly demodulating E-UCCH information, and sending the reception and demodulation threshold to the terminal, instructing the terminal to obtain a corresponding threshold transmission power according to the reception and demodulation threshold, and adjust 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 and demodulation threshold sent by the network side, where the at least...

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Abstract

Disclosed in the present application are a method, apparatus and system for adjusting transmission power and indicating the same, which are for use in a system adopting the HSUPA technology to ensure the demodulation performance of E-UCCH on the network side. The method is as follows: an RNC enables UE to be informed, by way of signalling, of the receiving demodulation threshold of the E-UCCH information on an E-PUCH, then the UE sets the initial transmission power on the E-PUCH as a threshold transmission power corresponding to the above receiving demodulation threshold, so that when the UE subsequently carries out an incremental adjustment on the above initial transmission power to acquire a target transmission power on the E-PUCH, even if the target transmission power is reduced as compared with the authorized transmission power acquired by the UE on the E-PUCH, it will still be capable of giving priority to ensuring the demodulation performance of the E-UCCH information on the E-PUCH, thereby improving the system's service reliability. At the same time, the present application provides an apparatus and system corresponding to the method described above.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method, device and system for adjusting transmission power and indicating the same. 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 power granted by the base station (NodeB) to a certain carrier of the UE exceeds the maximum transmit power of the UE on the carrier. Therefore, the UE is performing enhanced transport format combination. When selecting (E-TFC), it is necessary to consider reducing the transmit power used on each carrier. In multi-carrier HSUPA, in each carrier, the Uplink Enhanced Control Channel (E-UCCH) and Uplink Enhanced Traffic Channel (E-DCH) are multiplexed onto the same barcode combined transport channel (CCTrCH), and then mapped to the same uplink In the enhanced physical chan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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