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Power control method and user equipment

A technology for user equipment and power control, applied in the field of communication, can solve the problem that the power control of E-PUCH channel cannot be adjusted normally, and achieve the effect of improving power control effect and system performance.

Active Publication Date: 2012-06-27
XIAOMI INC
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  • Description
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AI Technical Summary

Problems solved by technology

[0020] In the process of scheduling E-PUCH transmission, 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, because E-AGCH is not sent, the power control of E-PUCH channel cannot be adjusted normally.

Method used

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  • Power control method and user equipment
  • Power control method and user equipment

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Embodiment Construction

[0052] The embodiment of the present invention provides a power control method for the situation that the power control of the E-PUCH cannot be adjusted normally according to the TPC carried by the E-AGCH during the discontinuous transmission period of the E-AGCH in the HSUPA system. The obtained TPC parameters for other uplink channels determine the closed-loop value of E-PUCH; obtain the reference transmission power of E-PUCH according to the closed-loop value; adjust the obtained E-PUCH according to the path loss adjustment amount in UE transmission power during RDI The reference transmission power is corrected to obtain the transmission power of the E-PUCH, so that the transmission power of the E-PUCH can be effectively controlled.

[0053] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawin...

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Abstract

The invention discloses a power control method and user equipment; the method comprises the following steps: in a sustainable resource indication RDI period, user equipment UE determines closed loop numerical value of an ascending physical channel E-PUCH of an enhanced dedicated channel according to the received transmission power control TPC parameters aiming at the other ascending channels; reference transmitted power of the E-PUCH is obtained according to the closed loop numerical value; the obtained E-PUCH reference transmitted power is corrected according to the road loss adjusted quantity in the UE transmitted power in the RDI period, so as to obtain the E-PUCH transmitted power; by adopting the invention, in the RDI period, the E-PUCH power control effect can be improved, and the system property is 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 channel. [0003] In the HSUPA system, E-UCCH (E-DCH Uplink Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/08H04W52/24
Inventor 郭保娟朱向前
Owner XIAOMI INC
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