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

An apparatus and method for assigning an acknowledgement (ACK)/a negative acknowledgement (NACK) channel resources. The method includes setting a User Equipment (UE) to feed back Acknowledgement (ACK)/Negative Acknowledgement (NACK) information in a Carrier Aggregation (CA) mode; setting a Transmit Power Control (TPC) field of a Physical Downlink Controlling Channel (PDCCH) message to transmit an ACK/NACK Resource Indicator (ARI) information, when a Downlink Assigning Indicator (DAI) value of the PDCCH message of a Secondary cell (Scell) scheduled in a non cross-carrier manner is 1; setting the TPC field to transmit a TPC command for the ACK/NACK feedback information, when the DAI value is greater than 1; and transmitting the PDCCH message and downlink data to the UE.

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 a device for discontinuous downlink transmission channels. The method comprises the following steps: according to correlative path loss information, acquiring variable of channel environmental parameters of the discontinuous downlink transmission channels; and controlling power of the discontinuous downlink channels according to the variable of the channel environmental parameters. According to the proposal, the method and the device can compensate transmitted power of the discontinuous downlink transmission channels in time, increase convergence speed of power control of the discontinuous downlink transmission channels, improve performance of the power control, and improve resource utilization efficiency. In addition, the invention provides multiple methods for acquiring the correlative path loss information, which can provide realizing conditions for acquiring the correlative path loss information based on modification of the prior protocol as little as possible.

The invention discloses an inner loop power control method for a wideband code division multiple access (WCDMA) mobile terminal. The method comprises the following steps of: generating a plurality of first radio frequency signals from a first power threshold value to a second power threshold value and detecting to acquire a plurality of first power values; generating a plurality of second radio frequency signals from the second power threshold value to the first threshold value and detecting to acquire a plurality of second power values; determining the power difference between adjacent first power values and the power difference between adjacent second power values near switching points in a gain mode; determining the difference between first segments and the difference between second segments according to the power differences; further acquiring an inter-segment compensation value, a first switching point compensation value and a second switching point compensation value; and compensating the first power values and the second power values in a specific gain mode by using the inter-segment compensation value, and compensating the first power values and the second power values near the switching points by using the first switching point compensation value and the second switching point compensation value. With the adoption of the method, the power control performance can be improved so as to meet standard requirement.

The invention discloses an attenuation control voltage determining method, an attenuation control voltage determining device and an ALC (automatic level control) circuit. The method includes when a sampling period reaches, sampling voltage signals output by a detecting circuit in the ALC circuit to acquire sampling voltage of a current sampling period; on the basis of the sampling voltage of the current sampling period and power voltage of a previous sampling period, determining power voltage of the current sampling period; according to a preset comparison table of the power voltage and attenuation control voltage, and determining the attenuation control voltage corresponding to the power voltage of the current sampling period to serve as the attenuation control voltage of the current sampling period to be used for controlling attenuation parameters of a radio frequency attenuation circuit in the ALC circuit before the attenuation control voltage of a next sampling period is determined. By the method, the device and the ALC circuit, power control effect, on output signals of power amplification equipment, of the ALC circuit is improved.

The invention discloses a method and a system for controlling uplink and downlink power, which relate to the field of wireless communication and can reduce the outdoor interference caused by indoor communication. According to the invention, according to downlink signal sampling data of an adjacent cell, a downlink interference control threshold corresponding to an indoor cell is calculated; according to the downlink signal sampling data of the indoor cell, an uplink interference control threshold corresponding to the indoor cell is calculated; during power control, judgment for downlink and/or downlink transmission power is implemented on a terminal inside the indoor cell, if the downlink transmission power of network side to the terminal is larger than the downlink interference control threshold according to the power control judgment result after the power control, power adjustment is not performed according to the judgment result, instead, the downlink transmission power of the terminal is adjusted to the downlink interference control threshold. And if the uplink transmission power of the terminal is larger than the uplink interference control threshold according to the power control judgment result after the power control, the uplink transmission power of the terminal is adjusted to the uplink interference control threshold.

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 discloses an uplink united power control method, which comprises the following steps of: performing united power control on a plurality of uplink channels of the same carrier wave to ensure that the plurality of uplink channels share Pe-base, and the shared Pe-base can be updated according to the transmit power control (TPC) commands of the plurality of uplink channels of the same carrier wave; and calculating uplink transmit power by using the shared Pe-base and preset power adjustment quantity. The invention also discloses a downlink united power control method. The probability of open loop power control can be reduced as much as possible by the methods, so that the strong interference of open loop power to other channels can be lowered furthest, and the power control performance can be improved.

The invention discloses a power control method and equipment. The method comprises the following steps: when a receiver receives data, determining a transmission power control (TPC) parameter according to the signal-to-noise ratio; when the receiver does not receive the data, if an unsent effective power control command exists, determining the TPC parameter according to the TPC in the power control command, and if the unsent effective power control command does not exist, determining the TPC parameter according to the predetermined mode; and sending the determined TPC parameter to a sender. The invention can be used for improving the power control effect of a channel and improving the system performance.

The invention discloses a method and a device of power control, and relates to the technical field of wireless communication. The method and the device of power control are used for improving power control performance. The standard deviation value of strength of received signals is confirmed according to the signal strength value of the received signals, the standard deviation value is the statistical average value of the difference value of the strength of the received signals and the average value of the strength of the received value, compensation is carried out on signal sending power according to the standard deviation value, therefore compensation is carried out on shadow fading in open loop power control, the defect that closed loop power control cannot track shadow fading of an information channel in time when propagation time delay is large is overcome, and accordingly power control performance is improved.

The invention discloses a device for determining a power offset parameter. The method comprises the following steps: a media access control E-DCH protocol data unit MAC-e PDU is configured for a base station and a terminal to form a power offset parameter PO corresponding to a cell; and the PO corresponding to the currently transmitted MAC-e PDU is determined by the terminal and the base station according to the cell of the currently transmitted MAC-e PDU, the configured PO and the predefined PO determination rule. The invention also discloses a system, a terminal and a base station for determining the power offset parameter. The power ratio of the fuzzy target signal and the interference noise can be avoided to be calculated through the base station to further enhance the accuracy of the high-power control command.

Embodiment of the invention provides a method, a device and a system for controlling power, relating to the communication field, and a power control performance of users accessed to a signal processing entity which cannot support a real time power control function can be improved; the method comprises the following steps: receiving a first signal sent by a first user by a signal processing entity which supports the real-time power control function, wherein the first user is an user accessed to the signal processing entity which cannot support the real-time power control function; receiving an indication which is sent by a control device so as to process a control channel signal of the first signal, and establishing a channel capable of loading the control channel signal of the first signal for the first user according to the indication; and processing the control channel signal of the first signal loaded on the channel and generating a detecting result for the control channel signal of the first signal loaded on the channel. An embodiment of the invention is applied to real time power control of the users.

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.

The invention discloses a power consumption control method and device and a computer readable storage medium, and the method comprises the steps: respectively determining the power consumption values of a foreground state, a background state and a function state according to a call kernel, a call frequency and a call time; and if the power consumption value meets a threshold condition corresponding to the application program, adjusting one or more of the calling kernel, the calling frequency and the calling time when the application program is in any one of the foreground state, the background state and the function state. According to the invention, a power consumption control scheme with clearer power consumption control strategy and clearer control logic is realized, the influence of the conventional complex control mode on the daily operation of the user is avoided, the power control effect is improved, and the user experience is enhanced.

The invention provides a method and device for improving measurement accuracy of the signal to noise ratio. According to M code channels corresponding to a resource block, the signal power of N user code channels is calculated, the signal power of N dummy user code channels corresponding to the user code channels are calculated, and the average power of M-2N spare code channels, namely the N user code channels and the N dummy user code channels are not included, is calculated. If the signal power of the dummy user code channels is judged to meet a power leakage compensation condition, the signal power of the dummy user code channels is used for compensating the signal power of user code channels corresponding to the dummy user code channels. The average power of M-N non-user code channels, namely the N user code channels are not included, is calculated, and the signal to noise ratio of each user code channel is calculated according to the average power of non-user code channels. According to the method and device for improving measurement accuracy of the signal to noise ratio, under the conditions that TA measurement is not accurate or other adverse factors exist in the actual environment, the measurement accuracy of the signal to noise ratio of the PUCCH format2 series is improved, and power control performance and detection performance of control information are improved.