摘要:
A method and apparatus for transmitting and receiving configuration information of a plurality of cells in a wireless communication system are disclosed. A method for receiving configuration information of a plurality of cells by a terminal in a wireless communication system based on a carrier aggregation includes detecting a radio connection failure, transmitting a radio connection reestablishment request message to a cell from among a first plurality of aggregated cells, and receiving a radio connection reestablishment message including configuration information of a second plurality of aggregated cells from the cell from among the first plurality of aggregated cells.
摘要:
A method of performing a random access procedure by a user equipment (UE) in a multiple-carrier system is provided. The method includes transmitting, to a base station (BS), a first random access preamble on a first uplink carrier selected from a plurality of uplink carriers, and transmitting, to the BS, a second random access preamble on a second uplink carrier selected from the plurality of uplink carriers when a random access response corresponding to the first random access preamble is not successfully received from the BS.
摘要:
A method and apparatus for transmitting and receiving system information in a wireless communication system are disclosed. A method for receiving system information of a wireless device wirelessly communicating with a base station (BS) and a terminal in a wireless communication system includes receiving system information change information from the base station (BS) through a dedicated time unit used for communication between the base station (BS) and the wireless device, and receiving system information from the base station (BS) through a different time unit from the dedicated time unit.
摘要:
a measurement method for minimization of drive test (MDT) comprises steps of: receiving measured frequency information for cell reselection and measured frequencies for MDT; measuring a quality of a serving cell; performing a first quality measurement on a neighboring cell; performing a second quality measurement on the neighboring cell; and storing results of the first and second quality measurements, wherein the step of performing the first quality measurement includes performing an intra-frequency measurement for the MDT on the neighbor cell when the frequency of the serving cell is included in the MDT frequencies, and performing the intra- frequency measurement for the neighbor cell only in the event where the quality of the serving cell in a first threshold value or less when the frequency of the serving cell is not included in the MDT frequencies, and the step of performing a second quality measurement includes performing an intra- frequency measurement for the MDT on the neighbor cell when an inter-frequency in the measured frequency information for the cell reselection is the MDT measurement frequency, and performing an intra-frequency measurement on the neighbor cell only in a case where the quality of the serving cell is a second threshold value or less when the inter-frequency in the measured frequency information for the cell reselection is not the MDT measurement frequency.
摘要:
The present invention relates to a method for detecting closed subscriber group (CSG) cells through a terminal in a wireless communication system. The method for detecting the CSG cells in the wireless communication system comprises the steps of: determining a present position of the terminal; measuring a physical layer identifier of a corresponding cell when the present position of the terminal corresponds to a position of a prestored CSG cell; and detecting the corresponding cell as the priorly connected CSG cell when the measured physical layer identifier corresponds to the physical layer identifier of the prestored CSG cell. Desirably, the method further comprises the steps of measuring system information of the corresponding cell; and detecting the corresponding cell as the priorly connected CSG cell when the upper layer cell identifier included in the system information corresponds to the upper layer cell identifier of the prestored CSG cell.
摘要:
A method and apparatus of reporting a power headroom in a wireless communication system is provided. A user equipment transmits a first power headroom report to a base station and starts a virtual power backoff timer upon transmitting the first power headroom report. When a second power headroom report is triggered while the virtual power backoff timer is running, the user equipment transmits the second power headroom report.
摘要:
Provided is a method for measuring, which is performed by a user equipment in a wireless communication system. The method for measuring comprises the following steps: receiving from a serving cell a report request message on measured resource limitation; attempting to acquire the information on the measured resource limitation; and transmitting the report request message on the measured resource limitation including the information on the measured resource limitation to the serving cell; receiving from the serving cell the measured resource limitation setting; and performing the limited measurement, when the information on the measured resource limitation is successfully acquired.
摘要:
Provided is a method which is performed by a user equipment in a wireless communication system. The method comprises the following steps: receiving from a serving cell a first measurement setting which is applied to normal operation; receiving from an interfering cell a second measurement setting when a high interference situation occurs; deciding whether the high interference situation has occurred; and performing the measurement based on the first measurement setting and the second measurement setting when the high interference occurrence is detected.
摘要:
A method for performing a logged measurement in wireless communication system is provided. The method includes receiving measurement configuration from a network, logging MDT (Minimization of Driving Tests) measurement, detecting whether a condition for state transition has occurred, performing state transition when the condition for state transition has occurred, and logging state transition information related to said state transition.
摘要:
Provided are a method and an apparatus for processing changes in a closed subscriber group (CSG) subscription in a wireless communication system. A non-access stratum (NAS) of a user equipment receives, from a network, an NAS message indicating that the CSG service to a CSG cell has expired. The NAS notifies the expiration of the CSG service to access stratum (AS), and the AS transmits the expiration of the CSG service to the CSG cell.