36results about How to "Improve power control effect" patented technology

An apparatus and method for transmitting a control signal using a symbol or bit pattern of an existing pilot channel, instead of using the time multiplexing method in the separate code channel or the existing physical channel, and reducing an error rate while a reception side detects the control signal are provided. For that purpose, a transmission side allocates transmission power corresponding to a pilot pattern determined according to the control information. A corresponding reception side detects control information based on a pilot pattern of pilot bits inserted in a dedicated physical channel (DPCH) and generates transmit power control (TPC) bits referring to a target reception power which is set based on the control information.

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.

The invention aims at providing a method and device for providing closed-loop power control information for PUCCH. The method is that when a main component carrier and one or a plurality of secondary component carriers are combined to service a user device together, the PUCCH of a main cell includes the HARQ information of the main component carrier and the HARQ information of the one or the plurality of secondary component carriers, and the PUCCH of a secondary cell includes the HARO information of the one or the plurality of secondary component carriers, a base station device can determine TCP information for indicating the secondary cell to bear closed-loop control of the uplink secondary component carrier of PUCCH to the PUCCH corresponding to the secondary cell containing the HARQ information of the one or the plurality of secondary component carriers according to different DCI format information in the downward secondary component carriers of the secondary cell. Compared with the prior art, the method and the device have the advantages that the corresponding TPC value is provided to the secondary cell containing the HARQ information of the secondary component carriers, so that the PUCCH closed-loop power control for the plurality of component carriers is achieved, and the power control performance is improved.

The invention relates to a wireless communication technology, in particular to a method, a system and a device for determining transmit power under a multi-carrier system. The method, the system and the device are used for power control under the situation of multi-carrier to improve power control performance. The method of the embodiment of the invention comprises the following steps that: a network side determines the reference expected receiving power of the available carriers of a terminal; and the network side transmits the reference expected receiving power of the available carriers to the terminal to instruct the terminal to determine the transmit power of each authorized available carrier according to the received reference expected receive power. By adopting the method of the embodiment of the invention, the power control can be conducted under the situation of multi-carrier and thereby the power control performance under the multi-carrier environment is improved.

Disclosed is an inner-loop power control method for a WCDMA mobile terminal, including: generating from a first power threshold value to a second power threshold value a plurality of first radio frequency signals and detecting same so as to obtain a plurality of first power values; generating from the second power threshold value to the first power threshold value a plurality of second radio frequency signals and detecting same so as to obtain a plurality of second power values; determining a power difference of an adjacent first power value and a power difference of an adjacent second power value approximate to a gain mode switching point; determining a first inter-segment difference and a second inter-segment difference according to the power difference so as to obtain an inter-segment compensation value, a first switching point compensation value and a second switching point compensation value; using the inter-segment compensation values to compensate the first power value and the second power value in a certain gain mode, and using the first switching point compensation value and the second switching point compensation value to compensate the first power value and the second power value approximate to the switching point. The above method can improve power control performance and make same meet specification requirements.