Power control method and device

A technology of power control and transmission power control, which is applied in the field of communication, can solve the problems that the E-AGCH channel power control cannot be adjusted normally, how to generate TPC is not determined, etc., so as to improve the effect of power control and system performance

Active Publication Date: 2010-06-23
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0008] During the scheduling transmission process, the power control of E-AGCH and E-PUCH is adjusted with reference to the TPC carried by the other party. Therefore, during the RDI period, since the E-AGCH is not sent, how to generate the TPC carried on the E-PUCH is not determined. E-PUCH The power control of the AGCH channel cannot be adjusted normally

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Embodiment Construction

[0054] The embodiment of the present invention aims at the situation that the E-AGCH is not transmitted during the RDI period in the power control process of the HSUPA system, and optimizes it on the UE side, and the UE generates the transmission power control TPC parameter according to the measurement parameter when receiving the E-AGCH last time, Either randomly generate the TPC parameters of this time, or refer to the TPC of other downlink channels to generate the TPC parameters of this time, or perform optimization on the base station side. After the base station receives the E-PUCH sent by the UE, it does not respond to the TPC parameters carried in the E-PUCH. Instead, the transmission power of the E-AGCH is determined with reference to the power of other downlink channels of the UE, so that during the RDI period, the power control effect of the E-AGCH channel can be better improved and the system performance can be improved.

[0055] In order to enable those skilled in t...

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Abstract

The invention discloses a power control method and a device. The method comprises the following steps: in the process of sustainable resource indication RDI, user equipment UE generates a current transmission power control TPC parameter according to a measurement parameter when receiving an absolute grant channel E-AGCH of an enhanced specialized channel, or generates the current TPC parameter referring to TPC of other downlink channels; and the current TPC parameter is sent to a base station by an physical uplink channel E-PUCH of the enhanced specialized channel. By adopting the method and the device, in the RDI process of HSUPA, the power control effect of the E-AGCH channel can be enhanced better, and the system performance can be promoted.

Description

technical field [0001] The present invention relates to communication technology, in particular to a power control method and equipment. Background technique [0002] HSUPA (High Speed ​​Uplink Packet Access, High Speed ​​Uplink Packet Access) is an uplink enhancement scheme proposed by 3GPP (Third Generation Partnership Project, third-generation mobile communication partner project), through code channel resource, power resource sharing and other strategies To maximize uplink throughput. The channel structure of the HSUPA service includes two uplink channels: E-RUCCH (E-DCHRandom Access Uplink Control Channel, E-DCH Random Access Uplink Control Channel) and E-PUCH (E-DCH Physical Uplink Channel, E-DCH Uplink Physical channel), and two downlink channels: E-AGCH (E-DCH Absolute Grant Channel, E-DCH Absolute Grant Channel), E-HICH (E-DCH HARQ Indicator Channel, E-DCH HARQ Indicator Channel) two downlink channels . [0003] In the HSUPA system, E-UCCH (E-DCH Uplink Control C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/18H04W52/36
CPCY02B60/50
Inventor 郭保娟朱向前
Owner DATANG MOBILE COMM EQUIP CO LTD
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