摘要:
Various examples are provided for point symmetric complementary meander line (PSC-ML) slots, which can be used for mutual coupling reduction. In one example, an antenna array includes first and second patch antenna elements disposed on a first side of a substrate, the first and second patch antenna elements separated by a gap. The antenna array can include point symmetric complementary meander line (PSC-ML) slots formed in a ground plane disposed on a second side of the substrate. The PSC-ML slots can include a pair of ML slots aligned with the gap between the first and second patch antenna elements. In another example, a method includes forming first and second antenna elements on a first side of a substrate and forming PSC-ML slots in a ground plane disposed on a second side of the substrate that are aligned with a gap between the first and second antenna elements.
摘要:
Exemplary embodiments include a computer-implemented method for configuring at least one antenna array comprising receiving a plurality of sets of samples corresponding to signals incident on a plurality of antennas; computing a mean of the envelopes of the sums of the respective sets; estimating a direction of arrival of the signals incident on the antennas based on the computed means; and configuring the antenna array based on the estimated direction of arrival. The computing and estimating procedures can be performed for each of a plurality of direction-of-arrival candidates. The estimating procedure can comprise determining a maximum value of the mean and a direction of arrival corresponding to the maximum value. The spatial selectivity of the antenna array can be configured based on the estimated direction of arrival. Other exemplary embodiments can include communication apparatus and computer-readable media embodying one or more of the exemplary computer-implemented methods and/or procedures.
摘要:
A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include one or more BaseURL elements. Uniform Resource Locators (URLs) of segments forming media may be generated based on the BaseURL elements. Additionally, a URL of a segment may be generated by mapping a BaseURL element among the BaseURL elements to a sourceURL attribute of the segment. Segments indicated by generated URLs may be identical to each other.
摘要:
Provided is a Multiple Input Multiple Output (MIMO) transmission method in a digital broadcasting system. The method includes generating a plurality of first modulation symbols by modulating first information bits; generating a plurality of second modulation symbols by modulating second information bits; generating a plurality of first pre-coded symbols and a plurality of second pre-coded symbols by pre-coding the plurality of first modulation symbols and the plurality of second modulation symbols; and allocating the plurality of first pre-coded symbols and the plurality of second pre-coded symbols staggeringly through a first antenna and a second antenna and transmitting them.
摘要:
Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.
摘要:
An apparatus and method for processing non-sequentially stored data is provided. The data processing apparatus may include an order information mapping unit to map transmission order information to data, an address list generating unit to generate an address list including addresses of the data arranged sequentially based on the transmission order information, and a data processing unit to process the data corresponding to each of the addresses based on an address order of the address list.
摘要:
There are disclosed a method of communicating for a smart utility network using a TV white space and an apparatus for the same. The method of communicating for a smart utility network using a TV white space according to the present invention includes: generating a time domain sequence repeated every predetermined number of samples; generating an OFDM symbol having a cyclic prefix length corresponding to an FFT size divided by a natural number of 2 or more and including samples of a number corresponding to the sum of the FFT size and the cyclic prefix length; and generating an SUN packet to be transmitted through a TV channel band selected in the TV white space by using the time domain sequence and the OFDM symbol. Accordingly, it is possible to satisfy all requirements required by the IEEE 802.15.4g SUN standardization group.
摘要:
The present invention relates to base station transmitting and receiving antennas and control methods thereof. For this purpose, the present invention provides a control method of a base station transmitting antenna. The control method includes collecting positional information and transmission level values of all terminals in a cell; analyzing statistics of cell traffic using the positional information and transmission level values, and generating antenna radiation patterns on the basis of the analyzed statistics result; optimizing the antenna radiation patterns by synthesizing beam patterns; and changing antenna beam patterns according to the optimized antenna radiation patterns. According to embodiments of the present invention, it is possible to increase a channel capacity in a cell, ensure the QoS in all terminals in the cell, and reduce installation and operation costs of a base station system.
摘要:
Provided are a multiple-gate MOS (metal oxide semiconductor) transistor and a method of manufacturing the same. The transistor includes a single crystalline active region having a channel region having an upper portion of a streamlined shape (∩) obtained by patterning an upper portion of a bulk silicon substrate with an embossed pattern, and having a thicker and wider area than the channel region; a nitride layer formed at both side surfaces of the single crystalline active region to expose an upper portion of the single crystalline active region at a predetermined height; and a gate electrode formed to be overlaid with the exposed upper portion of the single crystalline active region of the channel region.
摘要:
Provided is a multicasting Video on Demand (VOD) service system and method using channel merging. The multicasting VOD service system using channel merging may include: a video server to transmit a stream at a speed higher than a playback rate, and to merge at least two input/output (I/O) stream channels when the at least two I/O stream channel transmit the same content; a channel processor to calculate a high transmission speed for combining two channels having different playback points in times, and to request the video server for a high speed transmission including the calculated high transmission rate; and a terminal equipment to store a stream content received at the speed higher than the playback rate, and to play the stored stream content.