摘要:
Provided is a power control method and resource management method of a femtocell base station in a wideband wireless access system. A macrocell base station receives received signal strength from a femtocell base station in a macrocell of the macrocell base station, compares it with received signal strength reported by a terminal in the macrocell, and when a difference between the two received signal strength is less than a threshold value, it receives received signal strength on a signal received by the terminals in the macrocell from the corresponding femtocell base station. Further, the macrocell base station determines whether the corresponding macrocell terminal is located in the coverage of the femtocell base station based on the reported received signal strength of the femtocell base station, and transmits information for controlling power of the femtocell base station or managing a radio resource to the femtocell base station according to the determination result.
摘要:
The present invention relates to a resource reallocation and bandwidth request method in a wireless access system. The present invention uses the synchronous HARQ mode together with the asynchronous HARQ mode according to scheduling by the HARQ retransmission burst. Therefore, a resource allocation overhead for a retransmission burst is reduced during the synchronous HARQ mode operation. Also, an uplink transmission delay is reduced, and efficiency of the radio resource is maximized.
摘要:
The present invention relates to a resource reallocation and bandwidth request method in a wireless access system. The present invention uses the synchronous HARQ mode together with the asynchronous HARQ mode according to scheduling by the HARQ retransmission burst. Therefore, a resource allocation overhead for a retransmission burst is reduced during the synchronous HARQ mode operation. Also, an uplink transmission delay is reduced, and efficiency of the radio resource is maximized.
摘要:
An automatic meter reading system includes meter-reading devices attached to respective utility meters and a remote control center collecting measured commodity utilization from the meter-reading devices through a telephone network when a meter reading request signal is received from the remote control center. The meter-reading device includes a remote control center interface, a call control processing unit for extracting a call control signal from the meter reading request signal, a main control unit (MCU) for generating a CID control signal based on the call control signal, a caller ID (CID) decoder for decoding the meter reading request signal and extracting CID from a meter reading request signal based on the CID control signal from the MCU, a meter reader connected to the utility meter for reading commodity utilization measured by the utility meter under control of the MCU, and a memory for temporally storing the measured commodity utilization.
摘要:
A water quality converter includes: a container having an oval hollow, where the container is a plastic body of a mixture in which 10% to 30% by weight of aventurine, 5% to 20% by weight of sodalite, 2% to 10% by weight of amethyst, 1% to 10% by weight of Chungito, 5% to 20% by weight of germanium, 2% to 10% by weight of Shungite, 3% to 10% by weight of elvan, 2% to 10% by weight of rose crystal, 1% to 5% by weight of seven-colored gemstone, and 1% to 5% by weight of wooden stone are mixed, and a weight ratio of aventurine to sodalite ranges from 3:1 to 1:1, a weight ratio of aventurine to germanium ranges from 2:1 to 1:1, a weight ratio of germanium to Shungite ranges from 4:1 to 1:2, and a weight ratio of amethyst to germanium ranges from 1:2 to 1:5.