Abstract:
According to one embodiment, a method of performing a re-establishment procedure in a mobile communication system includes: receiving at least one packet data convergence protocol (PDCP) control plane data unit; performing an integrity check on the at least one PDCP control plane data unit; identifying an integrity check failure with regard to the at least one PDCP control plane data unit; and performing a re-establishment procedure if the integrity check failure is identified to exist with regard to the at least one PDCP control plane data unit.
Abstract:
Provided are a method and device in which a terminal manages component carriers in a wireless communication system. The terminal receives activation pattern data indicating activation or inactivation of at least one serving cell from a base station, and activates or inactivates the at least one component carrier in accordance with the activation pattern data.
Abstract:
A method of receiving a service from a network in a mobile communication system in accordance with the present invention comprises receiving static scheduling information from a network, the static scheduling information including information on radio resources associated with combining reception, receiving dynamic scheduling information from the network, the dynamic scheduling information including control information for receiving the service, and receiving the service by combining downlink shared channels transmitted from a plurality of cells based on the static scheduling information and the dynamic scheduling information.
Abstract:
There is provided with a method for enabling a user equipment to perform a random access procedure in a wireless communication system. The method includes transmitting a random access preamble and receiving a random access response as a response to the random access preamble. The random access response is addressed by a random access identifier. The random access identifier is mapped to radio resources used for transmitting the random access preamble. The user equipment can immediately confirm its random access response and perform further efficient random access procedure.
Abstract:
A method of transmitting and receiving control information in a wireless communication system is disclosed. The method of receiving control information related to a specific point-to-multipoint service in a user equipment of a wireless communication system comprises receiving a notification message including indication information and an identifier identifying the point-to-multipoint service from a network, the indication information indicating at least one downlink channel related to the specific point-to-multipoint service among a plurality of downlink channels established for transmission of control information for at least one or more point-to-multipoint service, and receiving at least one downlink channel indicated by the indication information.
Abstract:
A method in which a user equipment processes data in a wireless mobile communication system is provided. The method includes the steps of receiving a first data block from an upper layer, transferring a second data block including the first data block to a lower layer at a particular protocol layer, discarding the first and second data blocks present in the particular protocol layer if a certain period of time has passed, and transferring information associated with the discard of the second data block to the lower layer.
Abstract:
A method of performing contention resolution associated with a random access procedure. The method according to one embodiment includes transmitting, by the mobile communication terminal, an uplink message containing a cell-radio network temporary identity (C-RNTI) and starting a contention resolution timer; receiving, by the mobile communication terminal, a physical downlink control channel (PDCCH) transmission; and considering, by the mobile communication terminal, a contention resolution successful and stopping the contention resolution timer if a specific condition is satisfied. The mobile communication terminal considers the contention resolution successful and stops the contention resolution timer if the PDCCH transmission is addressed to the C-RNTI and the random access procedure is initiated by a downlink (DL) data arrival. The mobile communication terminal considers the contention resolution successful and stops the contention resolution timer if the PDCCH transmission is addressed to the C-RNTI and contains an uplink (UL) grant.
Abstract:
An apparatus and method of transmitting/receiving a multimedia broadcast/multicast service (MBMS) is disclosed. The present invention enables ARQ and HARQ to be applied to the MBMS transmission, thereby enabling more efficient data transmissions at a greater rate.
Abstract:
A method and apparatus of reporting logged measurements in a wireless communication system is provided. A user equipment in a Radio Resource Control (RRC) connected mode receives Minimization of Drive Tests (MDT) configuration from a base station and starts a validity timer upon receiving the MDT configuration. The user equipment in an RRC idle mode logs measurements based on the MDT configuration to collect logged measurements while the validity timer is running When the validity timer is expired, the user equipment discards the MDT configuration.
Abstract:
A method of receiving packets at a network in a mobile communication system. Including receiving a first packet from a user equipment; and receiving a second packet from the user equipment regardless of a reception status for the first packet, if control information for the second packet is transmitted to the user equipment.