摘要:
A method and system are provided for transmitting data in a multiple-input multiple-output (MIMO) communication system. A receiver sets the number of sub-streams of each column of a preceding matrix with respect to all precoding matrices of channels formed between the receiver and a transmitter and measures channel states with respect to sub-stream combinations whose number is equivalent to the number of set sub-streams. The receiver transmits data according to channel states to the transmitter after measuring the channel states with respect to the sub-stream combinations and antenna combinations representing sub-streams used upon data transmission of all the precoding matrices.
摘要:
A wireless communication system, and method using multiple antennas, includes a base station that applies predetermined weight vectors to multi-user signals and transmits the multi-user signals through a plurality of transmission antennas, and a plurality of mobile stations that receive and process the multi-user signals, wherein each mobile station includes a signal reception unit that processes the multi-user signals, and a feedback signal generation unit that estimates channel characteristics, over which the multi-user signals have been transmitted, from the multi-user signals, classifies a plurality of weight vectors to be applied to the estimated channel characteristics into a plurality of sets such that vectors orthogonal to one another are classified into a single set, selects a set maximizing a transmission capacity from among the classified sets, and feeds back weight indexes of weight vectors included in the selected set and weighted channel information to the base station.
摘要:
A personal care composition and multi-phase personal care composition are described that comprise 3% or less, by weight of the personal care composition, of a perfume. The personal care composition comprises at least 0.27%, by weight of the personal care composition, of the perfume raw materials having a Kovat's Index of greater than 1700.
摘要:
Improved liquid coffee concentrates that have furfuryl acetate to 4-ethyl guaiacol ratio values that approach the furfuryl acetate to 4-ethyl guaiacol ratio values of fresh brewed coffees brewed with the same coffees used to produce said coffee concentrates are disclosed. Methods of evaluating and adjusting a liquid coffee concentrate's furfuryl acetate to 4-ethyl guaiacol ratio value are also disclosed.
摘要:
A method for preparing dehydrated fruits, vegetables and tubers, particularly potato products. The steps of the method include: boiling the whole raw edible product or slices or pieces of the raw edible product for a time sufficient to partially cook the starch and soften the tissue of the edible product; comminuting the cooked product; and drying the comminuted product. The raw edible product is preferably unpeeled or partially peeled.
摘要:
The present invention relates to color and flavor improvements in iron and zinc supplemented dry beverage powders having fruit and/or botanical flavor. Vitamins such as the B vitamins, vitamin A, vitamin C, and vitamin E can be added to the dry beverage mix. The supplemented dry beverage mix can also contain iodine, niacin and folic acid. In particular, methods for fortifying dry beverage mixes with certain bioavailable zinc and iron compounds without producing reconstituted beverages having undesirable color or flavor are disclosed. Also disclosed are beverages and foods fortified preferably with amino acid chelated iron that do not impart objectionable color due to the inclusion of a ferric ion reducing agent such as ascorbic acid and/or an agent such as citric acid that is capable of preferentially complexing ferric ion in the presence of polyphenols or flavonoids that are typically present in these beverages or foods.
摘要:
In order for an actively managed fund to outperform a target benchmark, it is important to seek investments with high excess returns. This invention provides a method and system for detecting potential excess returns and sorting out stocks with artificial intelligence. The method and system applies convolutional neural networks (CNN) to paired data patterns from stock and benchmark. Through deep learning, the system establishes the statistical relationship between the paired data patterns and the forward-looking excess returns. The CNN outputs represent the potential excess returns of individual stocks relative to the target benchmark. By allocating higher investment weights to stocks with higher potential excess returns, the expected return of the portfolio will be greater than the target benchmark.
摘要:
A method for transmitting/receiving feedback information in a multi-antenna system using a closed-loop scheme supporting multiple users, and a feedback system supporting the same. Multiple feedback protocol scenarios are predefined on the basis of communication environments affecting feedback information configurations. The feedback information is transmitted in a feedback protocol scenario determined by a communication environment. The feedback information is constructed with information required by the communication environment.
摘要:
The present invention relates to a method for mapping and transmitting demodulation reference signal (DM-RS) and a communication terminal device, and more particularly to a method for mapping and transmitting DM-RS which uniformly maintains reception reliability of DM-RS for each layer in a process for transmitting different DM-RSs for odd-numbered layers.
摘要:
A method and apparatus for pilot signal transmission is disclosed, which is capable of improving efficiency in a wireless communication system, the method comprising transmitting an uplink transmission frame for a first sector or cell by a mobile station through the use of basic pilot pattern in a resource block and transmitting an uplink transmission frame for a second sector or cell by the mobile station through the use of shift pilot pattern which is not overlapped with the basic pilot pattern in the resource block.