Abstract:
A method and an apparatus for transmitting and receiving System Information (SI) of a femto base station in a wireless communication system are provided. In the method, an SI transmission point is determined using unique identification information of a femto base station itself and unique identification information of a macro base station with which the femto base station is associated. Each of user equipment and the macro base station generate a measurement gap pattern representing an SI reception point using the unique identification information of the femto base station and the unique identification information of the macro base station. SI is received from the femto base station according to the generated measurement gap pattern.
Abstract:
The present invention defines an efficient contention-based access procedure in a mobile communication system. The present invention is directed to a 3GPP LTE/LTE-A mobile communication system under discussion in the 3GPP as one of the representative next generation mobile communication system.
Abstract:
Disclosed is a method of measurement on a home cell/private network cell, by a user equipment (UE), in a mobile communication system, the method including the steps of: transmitting a request message requesting the measurement to a network node, the request message including an indicator instructing at least one of register, join, and use of the home cell/private network cell; receiving a response message corresponding to the request message from the network node, the response message including context information for measurement control of at least one home cell/private network cell accessible by the UE; and selectively executing measurement on the accessible home cell/private network cell by using the context information.
Abstract:
A method and a UE apparatus for radio resource management in a mobile communication system. When a discontinuous reception period or an inactivity period of a UE exceeds a threshold, an ENB releases resources for uplink control information transmission allocated to the UE, and the UE recognizes the release of the resources and stops transmitting the uplink control information through the resources. This reduces the explicit reconfiguration procedure through an RRC message, which is otherwise necessary whenever the UE enters a new discontinuous reception mode.
Abstract:
Methods and apparatus are provided for reporting a Power Headroom (PH) of a User Equipment (UE) in a wireless communication system having a plurality of aggregated uplink carriers. The PH is calculated for a Power Headroom Report (PHR)-triggered uplink carrier. A PHR having the PH and an identifier of the PHR-triggered uplink carrier is generated, and the PHR is transmitted to a network. Also, a PHR having the PH is generated, and the PHR is transmitted to a network over one of a plurality of PHR-transmitting uplink carriers configured to correspond to the PHR-triggered uplink carrier.
Abstract:
A method for receiving a packet by a terminal in a mobile communication system including a base station providing a packet, and a terminal that discontinuously receives a packet from the base station in Discontinuous Reception (DRX) cycles each having an active period and a sleep period. The packet reception method includes receiving, from the base station, configuration information for a DRX service, including a DRX cycle length; setting, as a starting point of the DRX cycle, a point at which a first packet is received from the base station; receiving a packet from the base station for an active period at the beginning of the starting point; and transitioning to a sleep period and waiting for a next active period.
Abstract:
A method and apparatus for detecting contention in an RA procedure in a mobile communication system is provided in which an L2/L3 message is received from a UE in uplink resources allocated to the UE by an RA preamble response message that was transmitted for an RA procedure initiated by the UE, a CR message associated the RA procedure is transmitted to the UE, if the L2/L3 message is an initial access message, and predetermined control information is transmitted to the UE on a downlink control channel without transmitting the CR message, if the L2/L3 message is not an initial access message.
Abstract:
A method and an apparatus for performing random access and uplink transmission of a User Equipment (UE) supporting Carrier Aggregation (CA) are provided. The method includes determining whether a Scheduling Request (SR) is pending, determining, when the SR is pending, whether an uplink transmission resource is available in a current Transmission Time Interval (TTI), determining, when the uplink transmission resource is not available, whether a Physical Uplink Control Channel (PUCCH) resource is configured for transmission of the SR, and initiating, when the PUCCH resource is not configured, a random access process in a primary cell. The random access method and apparatus of the present invention is advantageous to reduce the waste of transmission resources.
Abstract:
The present invention relates to a method and device for automatically optimizing the send parameters in a mobile communication system wherein, in order to optimize the BCCH reception performance, a terminal stores information relating to BCCH reception failure reasons or the number of instances of packet combination for BCCH reception, and this information is reported to a base station.
Abstract:
Disclosed is a method for transmitting MBSFN subframe configuration information of neighboring cells in a wireless system, the method comprises steps of: transmitting, by a base station of a serving cell, MBSFN subframe configuration information of the serving cell to a UE which accepts services from the serving cell via a broadcast control channel (BCCH); transmitting, by the base station of the serving cell, information on a subset relationship of MBSFN subframe configurations of the neighboring cells relative to the MBSFN subframe configuration of the serving cell to the UE which accepts services from the serving cell via the broadcast control channel (BCCH); performing, by the UE, measurements on the neighboring cells according to the subframe configuration information of the serving cell and the information on the subset relationship of the MBSFN subframe configurations of the neighboring cells relative to the MBSFN subframe configuration of the serving cell. With the method of the present invention, the UE can learn about the MBSFN subframe configuration information of the neighboring cells in a more accurately manner. Therefore, more subframes can be measured to improve measurement precision. Meanwhile, the present invention is based on redefinition of messages in the existing method, and thus no extra signaling overhead will be introduced.