摘要:
Disclosed is an apparatus and a method for transmitting a control channel message, which can reduce resource waste in an OFDM system multiplexing and using a Block Resource Channel (BRCH) and a Distributed Resource Channel (DRCH) in a frequency axis. The apparatus includes a controller for generating a predetermined field and outputting a control channel message including the predetermined field, the predetermined field indicating a precoding index when a common pilot is used for data demodulation in a mobile station and indicating a pilot format of a dedicated pilot when the dedicated pilot is used for data demodulation in the mobile station, the precoding index indicating a weight value for beam-forming of each antenna; and a transmission module for converting the control channel message into a wireless signal and transmitting the wireless signal to the mobile station. The apparatus and method can reduce the resource waste of a control channel by inserting different pieces of information into a predetermined field included in the control channel message according to the channel type and the multiplexing mode of a resource channel in an Orthogonal Frequency Division Multiplexing (OFDM) system, and enables the efficient use of resources by transmitting different types of control information through redundant bits of a control channel message.
摘要:
Provided is a control information transmission/reception method and apparatus for providing a packet data service in an OFDM based mobile communication system. The method includes transmitting a first maximum number of control channel blocks transmissible by using a first modulation scheme and a second maximum number of control channel blocks transmissible by using a second modulation scheme, the first modulation scheme having a lower modulation order from among modulation orders of multiple modulation schemes usable for control information within a frame, the second modulation scheme having a modulation order higher than the modulation order of the first modulation scheme within the frame; and transmitting first control channel blocks determined based on the first maximum number through the first modulation scheme within the frame and transmitting second control channel blocks determined based on the second maximum number through the second modulation scheme within the frame.
摘要:
A method and apparatus for multiplexing frequency hopping in a wireless communication system using Orthogonal Frequency Division Multiple Access (OFDMA) is provided. The frequency hopping multiplexing method and apparatus efficiently indicates time division multiplexing for global hopping and local hopping by indicating and using the number and positions of slots for global hopping and local hopping to time-division-multiplex global hopping and local hopping in a reverse link, depending on information the number of Distributed Resource CHannels (DRCHs), provided from a transmitting side over a Forward link Secondary Broadcast Control CHannel (F-SBCCH), which is one of the forward common channels.
摘要:
A mobile station apparatus for determining reverse transmission power in an Orthogonal Frequency Division Multiplexing system is provided. A reception module receives from a base station a Reverse-Link Assignment Message including a Packet Format (PF) field and a Reverse-Link Power Control (RLPC) field. A power level adjuster determines a nominal reverse transmission power level depending on information of the PF field, and determines a relative final transmission power level shifted by an offset value defined in the RLPC field from the nominal transmission power level.
摘要:
An optical semiconductor based illuminating apparatus including a housing having an opening portion, a lighting unit disposed adjacent to the housing that includes at least one optical semiconductor, a power supply mounted within the housing that supplies power to the lighting unit, and a gate unit connected to the opening part that opens and shuts the inner housing.
摘要:
The present invention relates to a set protection circuit for when a diode short-circuit defect occurs in a power factor correction circuit of a critical conduction mode. In a conventional power factor correction circuit, an excessive amount of current flows to a switch if a diode is short-circuited so that the switch is damaged. In order to prevent damage to the switch, the present invention provides a method for stopping turn-on of the switch when a switch current is excessive.
摘要:
The present invention relates to an anti-angiogenic composition containing macrolactin compounds such as macrolactin A, 7-O-malonyl macrolactin A, and 7-O-succinyl macrolactin A as active ingredients. The macrolactin compounds according to the present invention strongly suppress angiogenesis in in vivo experiments and can be used as a pharmaceutical composition for preventing or treating diseases caused by angiogenesis.
摘要:
Provided are an apparatus and a method for searching/managing a home network service based on a home network condition. The apparatus, includes: a service storing unit for storing a home network service; a device information analyzing unit for analyzing home network device information and checking a type of the home network device information; a service searching unit for searching a related home network service list according to the type of the home network device information in the home network service list; and a service operation managing unit for installing the home network service upon installation request of the user in the list of the searched home network service, and managing an operation of the home network service upon operation request of the user in the list of the installed home network service.
摘要:
Provided are a mesh networking auto configuration method, a virtual link setting method, and a packet transmission method in a multi-hop wireless local area network (LAN), and a terminal thereof. According to the provided methods and terminal, the mobility and connectivity of a wireless terminal is guaranteed in a multi-hop wireless LAN, and a seamless service can be provided. Also, a wireless terminal can be enabled to operate in a home gateway in a home networking field according to the present invention.
摘要:
Provided are a fault model and rule based fault management apparatus and method for a home network. The fault management apparatus includes: a plurality of fault generation unit formed in a multilevel structure and generating fault notification when a fault is generated; a plurality of fault communication unit for transferring fault notification from one of the fault generation unit; a fault agent unit for transferring each fault notification from a plurality of the fault communication unit; and a fault diagnosis and process unit for receiving the fault notification from the fault agent unit, diagnosing a corresponding fault, and processing the corresponding fault using a fault model, a fault decision rule, and a fault process rule.