摘要:
A method for performing a Discontinuous Reception (DRX) operation by a connected mode User Equipment (UE) in a mobile communication system. The method includes waking up at a wake-up timing, and determining whether an incoming data indication is received from a Node B; reestablishing uplink synchronization upon receipt of the incoming data indication; and waking up after sleeping for a time from the incoming data indication reception timing, receiving a transmission resource allocation message from the Node B, and receiving downlink data over allocated transmission resources.
摘要:
A user equipment (UE) is provided which reduces uplink signaling overhead in the process of reporting inter-frequency measurement results over a RACH. For measurement reporting, the UE receives an SIB including a cell information list for non-used frequency cells and a threshold from an RNC, compares signal strengths of signals received from the non-used frequency cells with the threshold, and acquires at least one inter-frequency cell ID indicating at least one non-used frequency cell having signal strength exceeding the threshold from the cell information list. The at least one inter-frequency cell ID is included in a RACH message as measurement result information for the at least one non-used frequency cell, and transmitted to the RNC. The RNC determines that the cell corresponding to the inter-frequency cell ID has signal strength exceeding the threshold.
摘要:
A method and apparatus are provided for transmitting a Session Initiation Protocol (SIP) message by a User Equipment (UE) in an idle mode in an Internet Protocol Multimedia Subsystem (IMS) system. The UE transmits one combined message of an AS control message and a NAS control message including information indicating transmission of an SIP message, thereby having an effect on an upper node to reduce a delay due to message processing.
摘要:
A method for scheduling multimedia broadcast and multicast service (MBMS) transmissions in radio frames comprising subframes comprises receiving a plurality of different multimedia broadcast and multicast service (MBMS) user data for broadcasting to a plurality of wireless communication units. The method further comprises scheduling the different MBMS user data for broadcasting in respective subframes within a first radio frame; and scheduling a different subframe order of the different MBMS user data for broadcasting in respective subframes within a second radio frame wherein the varied subframe order is based on the MBMS service to be broadcast.
摘要:
A method and apparatus for DRX of a UE in a mobile communication system are provided, in which the UE receives setting information from a network, the setting information including a first DRX cycle length and a second DRX cycle length for a predetermined data service. Upon generation of uplink data, the UE transitions to a downloading phase in which active periods are set according to the first DRX cycle length.
摘要:
A method and apparatus for DRX of a UE in a mobile communication system are provided, in which the UE receives setting information from a network, the setting information including a first DRX cycle length and a second DRX cycle length for a predetermined data service. Upon generation of uplink data, the UE transitions to a downloading phase in which active periods are set according to the first DRX cycle length.
摘要:
A method for transmitting a random access preamble using a random access procedure in a mobile communication system. The random access preamble transmission method includes selecting, upon triggering of the random access procedure, one of random access preamble sets predefined between a User Equipment (UE) and an Evolved Node B (ENB) according to whether a radio channel condition is greater than a radio channel condition threshold and a size of a message that the UE will transmit after transmission of the random access preamble is greater than a minimum message size, randomly selecting a random access preamble from the selected random access preamble set, and transmitting the selected random access preamble to the ENB over a random access channel.
摘要:
Disclosed is a method and apparatus for transmitting/receiving a packet in a mobile communication system. When upper layer packets are multiplexed into a packet whose overall size is informed via a separate path, the size of the upper layer packet is not signaled if it can be calculated from the overall size of the packet, so that the size a packet transmitted/received over a radio channel can be reduced.
摘要:
A method is provided for performing a random access procedure in a mobile communication system. The method includes receiving a random access response message from a Base Station (BS); transmitting a message including a Cell-Radio Network Temporary Identifier (C-RNTI) to the BS, if the C-RNTI exists; and determining that a contention for the random access procedure is resolved successfully, when User Equipment (UE)-specific control information addressable by the C-RNTI is received from the BS.
摘要:
The present invention defines an efficient method for (re)selecting a cell according to a speed of a terminal in a HetNet where cells having various regions such as macro cells, pico cells and femto cells are arranged in the same frequency band in a mobile communication system. A cell selection control method of a terminal in a mobile communication system, according to an embodiment of the present invention, comprises a step of receiving, from a base station, cell list information for not allowing a terminal moving at a high speed to select a cell and a step of setting the terminal so that cells included in the cell list information are considered or not considered to be targets of selection or reselection when the terminal moves at the high speed. According to the present invention, in a network consisting of various types of cells using the same frequency band, the terminal can determine whether to select or reselect a cell according to the speed of the terminal. That is, the terminal moving at the high speed does not select or reselect a frequent service cell, thereby efficiently performing the cell selection or reselection. Further, power consumption of the terminal can be reduced.