摘要:
A forward-link power control method is disclosed. The forward power control is performed by receiving at least one reverse link channel that informs channel quality information of a forward link, and determining a power of a channel to be transmitted to the forward link according to the channel quality information.
摘要:
A battery management system and a driving method thereof includes a sensing unit and a micro control unit (MCU). The sensing unit measures a battery temperature and a battery current. The MCU receives the battery temperature and current, detects battery internal resistance corresponding to an estimated state of charge (SOC) and the battery temperature when the estimated SOC is included within an SOC area corresponding to the transmitted battery temperature, and estimates a battery state of health (SOH) by using the battery internal resistance. In the SOC area, a variation of the battery internal resistance is minimized.
摘要:
A battery management system and a driving method include a first switch coupled to an end of a resistor. When calculating an internal resistance of a battery, the first switch is turned on and the battery and the resistor are coupled in parallel. Then, the internal resistance of the battery is calculated by using a second current flowing to the battery and a first current flowing to the resistor.
摘要:
A battery management system of a vehicle utilizing electrical energy and a driving method thereof is provided. The battery management system includes a sensing unit and a main control unit (MCU). The sensing unit detects voltage of a battery cell. MCU determines an operation state of a vehicle, and generates a sampling signal depending on the operation state of the vehicle. The sampling control signal transmits to the sensing unit, and controls the detection of the voltage of the battery cell. The operation state of the vehicle includes a running state and a stopping state.
摘要:
Battery management system and a driving method thereof including a sensing unit and an MCU. The sensing unit measures a battery current and a battery voltage. The MCU sets an OCV during a no-load state period at time increments measured from the beginning of the no-load state period, and estimates an SOC corresponding to the set OCV.
摘要:
A method of transmitting/receiving a packet using a hybrid automatic repeat request in the mobile communication system is disclosed. The packet data transmitting method includes transmitting at least one sub packet divided from plurality of encoded packets generated by repeating a bit stream that is made by encoding information desired to be transmitted with ⅕ rate turbo encoder, and transmission start point information of the sub packet through the sub packet identifier field on the accompanying control channel.
摘要:
A battery management system that estimates an internal impedance of a battery, a method of driving the same, a device that estimates an internal impedance of a battery, and a method of estimating the internal impedance of a battery. A method of driving a battery management system that estimates the internal impedance of a battery including a plurality of cells includes generating a battery equivalent model of the battery, receiving a terminal voltage signal and a charge and discharge current signal of the battery, and generating a first discrete signal corresponding to the terminal voltage signal of the battery and a second discrete signal corresponding to the charge and discharge current signal of the battery, and filtering the first discrete signal and the second discrete signal according to a frequency range corresponding to the battery equivalent model so as to estimate the internal impedance of the battery. The device that estimates an internal impedance of a battery filters the first discrete signal and the second discrete signal according to a frequency range corresponding to the battery equivalent model so as to estimate the internal impedance of the battery.
摘要:
There is provided a method for transmitting one or more CQIs between a mobile station and a base station in a mobile communication system. The method may include: identifying a channel condition between the mobile station and the base station; adjusting a number of CQIs to be transmitted in accordance with the channel condition; and transmitting the adjusted number of CQIs from the mobile station to the base station.
摘要:
An overhead message and a method of performing channel hashing using the same are provided. The overhead message includes first and second fields of an extended CDMA channel list message (ECCLM). The first field contains information indicating whether the ECCLM includes at least one frequency assignment of list of frequency assignments that allows packet data support for a forward packet data channel or a 1×EV-DV system and the second field indicates whether each frequency assignment allows such support, thereby enabling channel hashing to be performed by a packet-data-supportable mobile station of a communication system.
摘要:
The present invention provides a method for providing multiple services and an apparatus for the same in a wireless packet data communication system. It guarantees various qualities of the services to a plurality of users by determining priorities of the mobile stations and an amount of resource allocated to each mobile station, and determining priorities of the multiple services and an amount of resource allocated to each service based on the resource allocated to each mobile station.