564 results about "Uplink power control" patented technology

A method and an apparatus for uplink power control in a wireless communication system are provided. More specially, a method is provided in which a first base station in a wireless communication system periodically measures interference for a cell of a second base station neighboring the first base station, determines an average of the periodically measured interference, broadcasts the determined average of the periodically measured interference to mobile terminals located in a cell of the first base station, determines a weight for the determined average of the periodically measured interference, based on one of resource allocation information for the cell of the second base station and whether a specific message for interference regulation is received from the second base station, and transmits the determined weight to the mobile terminals.

The invention provides a method for sending and detecting downlink control information, a base station carries the downlink control information in a physical downlink control signal channel, the physical downlink control signal channel is sent through a component carrier, wherein the base station carries the first type of downlink control information on the main component carrier and carries the third type of downlink control information on the first component carrier, the first type of downlink control information carries uplink and / or downlink scheduling information and / or uplink power control information of the component carrier in which the first type of downlink control information is located, the second type of downlink control information carries uplink and / or downlink scheduling information of one or a plurality of component carriers, and the third type of downlink control information carries indication information of the second type of downlink control information. A terminal detects the first type of downlink control information on the main component carrier and detects the third type of downlink control information on the first component carrier. The method has better scheduling flexibility, compatibility and error code performance, lower blind detection times and lower signaling cost.

In a system having a base station transmitter for transmitting data blocks to one or more mobile stations over a radio link, there is a method for determining an uplink transmit power level at which to transmit a current data block over a radio link from the mobile to the base transmitter station. The method evaluates airlink quality measurements in the radio link over a measurement interval, wherein each time a message is sent to the mobile station, it is evaluated whether a specified number of uplink blocks have been transmitted by the mobile station since the start of the measurement interval. Based on the evaluated airlink quality measurement, the method determines the uplink transmit power level that the mobile should be using for the current block, and adjusts the transmit power level, if necessary, for the current block.

A method and apparatus for uplink power control performed by a mobile station (MS) in a wireless communication system is provided. The method includes dividing a frequency band for uplink transmission into a plurality of frequency partitions, obtaining a path loss weight for each of the plurality of frequency partitions, and determining transmit power for each of the frequency partitions on the basis of the path loss weight. Overall system performance can be improved.