摘要:
An apparatus and a method for generating an Automatic Repeat reQuest (ARQ) feedback message in a wireless communication system are provided. A method for generating an ARQ feedback message at a receiving end in a wireless communication system includes, generating first ARQ feedback information of a first scheme, the first ARQ feedback information comprising information of a first erroneous ARQ block of one or more ARQ blocks for which the ARQ feedback is not performed, generating second ARQ feedback information of a second scheme indicative of error of at least one ARQ block not represented in the first ARQ feedback information, generating an ARQ feedback message comprising the first ARQ feedback information and the second ARQ feedback information, and transmitting the ARQ feedback message to a transmitting end.
摘要:
An Automatic Retransmission reQuest (ARQ) data block reception apparatus and method in a communication system is provided. In the ARQ method, an ARQ feedback Information Element (IE) is transmitted to an ARQ data block transmission apparatus. The ARQ feedback IE includes a first field for indicating a Connection IDentifier (CID) of an ARQ connection, a second field for indicating the presence/absence of an additional ARQ feedback IE after the ARQ feedback IE, a third field for indicating a type of an Acknowledgement (ACK) MAP included in the ARQ feedback IE, a fourth field for indicating a Block Sequence Number (BSN) of an ARQ data block, and m ACK MAP fields. The m ACK MAP fields each include information indicating presence/absence of an additional ACK MAP field after a corresponding ACK MAP field, and an ACK MAP indicating success/failure in normal reception for each of n ARQ data blocks, wherein m and n each denote an integer greater than or equal to 1.
摘要:
The present invention relates to a grinding wheel truing tool, its manufacturing method, and a truing apparatus, a method for manufacturing a grinding wheel and a wafer edge grinding apparatus using the same. The grinding wheel truing tool of the present invention compensates a groove of a fine-grinding wheel for fine-grinding a wafer edge, and includes a truer having an edge of the same angle as a slanted surface of the groove of the fine-grinding wheel and a cross-sectional shape corresponding to a cross-sectional shape of the groove. The present invention uses the truing tool to easily process the groove of the grinding wheel for fine-grinding the wafer edge.
摘要:
An apparatus and method for routing data among multicores that is capable of reconfiguring the connection among the multicores are provided. The apparatus includes a configuration information generating unit and at least one switching unit. The configuration information generating unit is configured to generate configuration information that indicates a local network connection among the multicores based on a program counter received from each of the multicores. The at least one switching unit is configured to change a data transfer path among the multicores based on the configuration information.
摘要:
Disclosed is the biological production of lactic acid using a microorganism. A transformant capable of producing lactic acid of high optical purity at high yield, a method for the preparation thereof, and a method for producing lactic acid in a convenient and economically beneficial manner using the same are provided. The Zymomonas mobilis transformant can produce lactic acid of high optical purity at high yield without a stringent limitation to production conditions and a regulation of the intracellular metabolism pathway. Because it requires no additional separation and purification steps, the use of the transformant allows the production of lactic acid in a short process, resulting in a significant reduction in production cost, and avoiding the environment problems caused by precipitate wastes, which brings about environmental issues.
摘要:
An apparatus and method for compensating Quality of Service (QoS) during a handover of a Mobile Station (MS) by a serving Base Station (BS) and a target BS in a wireless broadband access system are provided. The method includes generating a message during a handover from the serving BS to a target BS, the message including at least one of a data transmission/reception time just before the handover, a size of a time window for which a data transmission/reception history is recorded in an accumulated way, and an amount of data transmitted/received during the time window, and transmitting the message to the target BS. The target BS can more accurately find a handover break time and the amount of data transmission/reception in the serving BS at the time the MS has been handed over to the target BS, enabling fast and adequate QoS compensation/correction for each QoS class, and thus facilitating flexible, efficient and accurate QoS provisioning regardless of controlled handover and uncontrolled handover.
摘要:
Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in the process of preparing the wholly aromatic polyamide polymer, the aromatic diamine, aromatic diacid chloride and polymerization solvent put into the reactor 20 are agitated by an agitation device which is installed in the reactor 20 and consists of: (i) a rotor 3 driven by a motor 2 and having a plurality of pins 3a; and (ii) a stator 4 having a plurality of pins 4a, wherein spin speed of the rotor 3 is controlled to 10 to 100 times of both of feeding rates for the aromatic diacid chloride and the aromatic diamine in the polymerization solvent into the reactor and, at the same time, contact frequency between the pins 3a and the pins 4a is regulated within a range of 100 to 1,000 Hz. The present invention is effective to progress uniform and homogeneous polymerization over all of area of a polymerization reactor 20, thereby reducing deviation in degree of polymerization, since polymeric monomers are miscible and react together very well in the reactor 20. Accordingly, the wholly aromatic polyamide filament produced exhibits narrow PDI and lowered paracrystalline parameter gII leading to reduction of defects of a crystal itself, so as to considerably improve strength and modulus thereof.
摘要:
A method for fabricating a semiconductor device is provided. The method includes: forming device isolation layers on a substrate; sequentially forming an anti-reflective coating layer and a photoresist layer on the substrate; patterning the anti-reflective coating layer and the photoresist layer to expose substrate regions in which active regions of a metal oxide semiconductor (MOS) transistor will be formed; and recessing the exposed substrate regions in a predetermined thickness.
摘要:
The invention is directed to a digital data delivery system including a digital data server configured to deliver first key encrypted digital data to a source device, and the first key encrypted digital data is encrypted using a first key. The source device is configured to generate decrypted digital data by decrypting the first key encrypted digital data using the first key, generate second key encrypted digital data by encrypting the decrypted digital data using a second key, and deliver the second key encrypted digital data to a digital data playing device. The first key is thereby based on one or more registration attributes of a user of the digital data server, and the second key is based on one or more attributes of the digital data playing device.
摘要:
A device and method for decrypting re-encrypted digital contents are discussed. According to an embodiment, the method includes receiving the re-encrypted digital content without a source encryption key from a source device connected to the target device, wherein the re-encrypted digital content is generated at the source device by: 1) decrypting an encrypted digital content which is previously encrypted in an external device, and 2) re-encrypting the decrypted digital content with the source encryption key; performing an addition operation by using a first target internal key and an identifier (ID); generating a target encryption key based on an output of the addition operation and a second target internal key by using a predetermined encryption algorithm, the second target internal key being associated with the target device; and decrypting the re-encrypted digital content using the target encryption key.