42results about How to "Improve estimate quality" patented technology

An uplink channel estimation method for downlink coherent coordinated multi-point transmission, the steps of which are: 1. Multi-cell multi-users send SRS, and the base station converts time-domain received signals into frequency-domain received signals; 2. The base station converts multi-cell multi-users according to The energy of large-scale fading channels is sorted from large to small. Channels between multi-cell multi-users and the base station are estimated one by one in an iterative manner according to the ranking. 3. When estimating the channel of the i-th user in the first iteration, use the estimated user channel to reconstruct the relevant received signal and remove it from the received signal of the base station. Then use information such as large-scale fading channel energy to do robust channel estimation. 4. When estimating the channel of the i-th user in the mth (m>1) iteration, use the channels of the 1st to i-1th users estimated by this iterative process and the channel estimated by the m-1th iterative process Correlated received signals are reconstructed from the i-th to K-th users' channels and removed from the received signals of the base station. Then do robust channel estimation.

A method for estimating a probability distribution of the maximum coefficient of friction (μ) at a current and / or future waypoint (s, s*) of a vehicle. According to the method, a first probability distribution (WV1) for the maximum coefficient of friction (μ) at the waypoint (s) of the vehicle is determined by a Bayesian network from a first data set, which is, or was determined, for one, in particular current, waypoint (s) of the vehicle and which characterizes the maximum coefficient of friction (μ) at the waypoint (s) of the vehicle.

The invention aims at providing a method used for transmitting data in equipment-to-equipment communication and equipment thereof. Receiving equipment receives transmission data sent by corresponding sending equipment. The transmission data comprises data identification information identifying whether the transmission data is new transmission data. According to the data identification information, the new transmission data and retransmission data are determined. Redundancy version information of the retransmission data is determined. According to the redundancy version information, combined decoding is performed on the new transmission data and the retransmission data so as to acquire the decoded new transmission data. Compared to the prior art, by using the method and the equipment of the invention, through adding the data identification information identifying whether the transmission data is the new data in the transmission data, a receiving equipment terminal is easy to determine whether the received data is the new data; and according to a scheduling control signaling comprising timing correlation information, the redundancy version information of the retransmission data is determined. Through an indirect method, the redundancy version information is acquired so that signaling cost is reduced and a frequency spectrum utilization rate is increased.

The present invention discloses a method of processing channel state information and a user apparatus, the method comprising: the user device for the cooperative neighborhood silent muting channel status information reference signal resources, measuring the channel when there is a collaboration; the user device obtains a first channel quality indicator CQI according to the measurement of the channel when there is collaboration. By the present invention can improve the channel status information reference signal channel estimation quality.

A method for channel estimating in an Orthogonal Frequency Division Multiplexing (OFDM) system is disclosed in the present invention, which includes: performing the pilot main code elimination, tail connection, Inverse Discrete Fourier Transform (IDFT), multiuser separation, Discrete Fourier Transform (DFT) and tail cutting processing in frequency domain in turn for the received pilot signal in order to obtain the channel estimating signal of every user. A device for channel estimating in an OFDM system is also disclosed in the present invention. By applying the method and device of the present invention, thus, the channel estimating signals of multiple users are effectively separated and the quality of the channel estimating is improved.

The disclosure relates to a method performed by a battery monitoring unit configured for estimating a battery discharging current of a battery comprising the steps obtaining a state-of-charge value indicative of a ratio between a current capacity and a maximum capacity of the battery, obtaining sensor data indicative of a first plurality of battery voltage values obtained at multiple subsequent points in time, determining a first voltage trend over time of the first plurality of battery voltage values, estimating a battery discharging current of the battery based on a relation, where the relation is dependent on the first voltage trend over time and the state-of-charge value.