Patent application number | Description | Published |
20120020440 | METHOD AND DEVICE FOR DETERMINING SMOOTH WINDOW LENGTH IN CHANNEL ESTIMATION - A method and a device for determining a smooth window length in channel estimation is provided. The method includes: obtaining autocorrelation values of pilot signals, where the autocorrelation values include first autocorrelation values and second autocorrelation values, at least two first autocorrelation values exist, and at least one second autocorrelation value exists; determining a speed range according to symbols of the first autocorrelation values or the symbols of the first autocorrelation values and a ratio value between the second autocorrelation value and one of the first autocorrelation values; and determining the smooth window length according to the speed range. Through the method provided in embodiments of the present invention, the problems caused by a fixed smooth window length may be avoided, and this improves system performance. | 01-26-2012 |
20120033713 | METHOD, APPARATUS, AND USER TERMINAL FOR RECEIVING AND PROCESSING DATA - The present invention discloses a method for receiving and processing data. The method includes: convoluting a channel estimate value of a receive end with an SCH signal transmitted by a transmit end on an SCH and obtaining an SCH signal in a receive signal of the receive end; evaluating a difference between the receive signal and the SCH signal in the receive signal. An apparatus, and a user terminal are also disclosed in the present invention. By using the method and apparatus of the present invention, the SCH signal in a receiver may be restored and removed from the receive signal, and interference of the SCH on other channels may be eliminated, thereby improving performance of the receiver. | 02-09-2012 |
20120213264 | CHANNEL ESTIMATING METHOD AND DEVICE - A channel estimating method and device are provided. The method includes: performing multi-path searching on a pilot channel, and performing interpolation on a channel estimation value at a radial position of the multi-path searching ( | 08-23-2012 |
20120236908 | METHOD AND DEVICE FOR ESTIMATING RATIO OF AVERAGE CHIP ENERGY TO TOTAL TRANSMIT POWER SPECTRUM DENSITY - The present invention provides a method for estimating a ratio of average chip energy to a total transmit power spectrum density (Ec/Ior), including: according to a group of spreading codes corresponding to an acquired spreading factor, obtaining an estimated value of Ior; according to a spreading code of a physical channel to be estimated, obtaining an estimated value of Ec; and according to the estimated value of the Ior and the estimated value of the Ec, obtaining an estimated value of EC/Ior. The present invention further provides a device for estimating Ec/Ior. By adopting the method and device for estimating Ec/Ior, when a base station adjusts transmit power of each physical channel, an adjusted value of Ec/Ior can be obtained in real time for accurate estimation. | 09-20-2012 |
20130188669 | Code Channel Detecting Method and Related Device and Communication System - Embodiments of the present invention disclose a code channel detecting method and a related device and a communication system. In the solutions provided by the embodiments of the present invention, whether a DPA code channel is in an active state is determined with multiple thresholds based on a first reference value and a third reference value, or based on a first reference value, a second reference value and a third reference value. This mechanism takes multiple possible false determination situations into consideration, thereby ensuring a code channel correct detection rate in multiple interference scenarios and relatively reducing a false alarm rate. | 07-25-2013 |
20130189927 | INTERFERENCE ELIMINATION METHOD, INTERFERENCE ELIMINATION DEVICE, AND COMMUNICATION SYSTEM - Embodiments of the present invention provide an interference elimination method, an interference elimination device and a communication system, which are used to implement the effective elimination of signal interference of a receiving end. The method includes: according to a received signal, reconstructing a main cell signal, obtaining the reconstructed main cell signal, and subtracting the reconstructed main cell signal from the received signal, so as to obtain a first residual signal; according to the first residual signal, reconstructing an interference cell signal, and obtaining the reconstructed interference cell signal; and according to the received signal and the reconstructed interference cell signal, obtaining an interference-eliminated main cell signal. According to the interference elimination method, the interference elimination device and the communication system in the embodiments of the present invention, the interference elimination may be performed on the received signal effectively. | 07-25-2013 |