Abstract: A method and apparatus are provided for transmitting power headroom information by a terminal in a mobile communication system. The method includes receiving, by the terminal, information on an allocated uplink transmission resource; determining whether a path loss has changed more than a threshold, after transmitting last power headroom information, when the terminal has the allocated uplink transmission resource; if the path loss has changed more than the threshold when the terminal has the allocated uplink transmission resource, determining a transmission of the power headroom information; and transmitting an uplink packet including the power headroom information using the allocated uplink transmission resource. The power headroom information is obtained based on a difference between a maximum transmission power of the terminal and a transmission power of the terminal.

Abstract: The semiconductor device includes a substrate, a stack structure including gate patterns and interlayer insulating films that are alternately stacked on the substrate, an insulating pillar extending in a thickness direction of the substrate within the stack structure, a polycrystalline metal oxide film extending along a sidewall of the insulating pillar between the insulating pillar and the stack structure, a liner film having a transition metal between the insulating pillar and the polycrystalline metal oxide film, and a tunnel insulating film, a charge storage film, and a blocking insulating film which are disposed in order between the polycrystalline metal oxide film and the gate patterns.

Abstract: The present disclosure relates to converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT), and may be applied to intelligent services, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method according to disclosed aspects includes receiving a first control message including a first random access response window for a first cell group, receiving a second control message for adding a second cell group, including information on a second random access response window size for the second cell group, transmitting, on a cell of the second cell group, a random access preamble, and monitoring, on the cell of the second cell group, a random access response based on the second random access response window size for the second cell group.

Abstract: An apparatus, circuit, and method for controlling a service access in a packet data communication system are provided. The method includes broadcasting information related to whether a service access to a specific service is possible.

Abstract: The present invention defines an efficient measurement method for idle mode M2M/MTC device with low/no mobility in a mobile communication system. An example of the mobile communication system to which the present invention is application is 3GPP UMTS mobile communication system and 3GPP LTE/LTE-A mobile communication system as the next generation mobile communication system under discussion in 3GPP.

Abstract: A method and apparatus for controlling measuring the frequency of a new cell within a forbidden registration area when a User Equipment (UE) enters into the new cell in a mobile communication system are provided. If the UE recognizes the new registration area as forbidden, the UE does not measure the frequency of the current cell for a predetermined reference time, and searches for a suitable cell for a normal service by measuring other frequencies. If no suitable cell in the other frequencies is found, the UE removes a measuring limitation and searches for an acceptable cell for a limited service by measuring frequencies including frequency of the current cell.

Abstract: A method for receiving system information, a method for transmitting system information by a Node B in a mobile communication system, a user equipment (UE) for receiving system information, and a Node B for transmitting system information by a Node B in a mobile communication system are provided. The method for receiving system information includes receiving system information comprising first partial bits of a system frame number (SFN) on a broadcast channel in a first subframe of a radio frame within a broadcast channel transmission period, the first partial bits having the same value during one broadcast channel transmission period comprising a plurality of radio frames; acquiring second partial bits of the SFN based on decoding the broadcast channel, the second partial bits having different values for different radio frames within the broadcast channel transmission period; and determining the SFN from the first partial bits and the second partial bits.

Abstract: The present invention relates to a method and a device for machine type communication in a wireless communication system, and according to one embodiment of the present invention, a method for receiving a paging message in a wireless communication system for supporting MTC comprises the steps of: determining whether there is a terminal within a normal coverage (NC) or an extended coverage (EC), transmitting, to a network, state information including EC function support information and/or area display information of the NC or the EC according to the determination result; determining a paging receiving time according to an operation mode related to the state information, and receiving the paging message according to the determined paging receiving time.

Abstract: According to one embodiment of the present disclosure, the method by means of which a mobility management entity (MME) determines the communication mode of a terminal in a communication system includes the steps of: receiving, from the terminal, an access request including information on the position of the terminal; transmitting a message to a home subscriber server (HSS) on the basis of the received access request; receiving, from the HSS, specific position information for setting a first mode; comparing the information on the position of the terminal with the specific position information; and determining the communication mode of the terminal according to the result of the comparison. According to the present disclosure, the frequent transmission of small amounts of data can be supported in an efficient manner.

Abstract: Methods and apparatuses are provided for establishing time alignment by a User Equipment (UE) in a wireless communication system. Information for identifying a dedicated preamble on a downlink control channel is received from a base station. The dedicated preamble is transmitted to the base station based on the information. A response message to the transmitted dedicated preamble is received from the base station on a downlink shared channel. The response message includes a timing adjustment information and information for a Channel Quality Indicator (CQI) report. Time alignment is established based on the timing adjustment information included in the response message. The CQI report based on the information for CQI report is transmitted to the base station.

Abstract: To solve the above-mentioned problem, the method for transmitting and receiving a signal by user equipment (UE) through one or more cells, according to one embodiment of the present specification, comprises the steps of: receiving, from a base station, a first message indicating whether one or more cells usable by the UE are enabled; determining which cells to enable or disable on the basis of the first message; and enabling or disabling the selected cells. According to the embodiment of the present specification, by aggregating carriers amongst different base stations, a possibility for the UE to transmit and receive high-speed data through carrier aggregation can increase.

Abstract: A method and an apparatus are provided in a wireless communication system. The method includes generating mobility history information upon entering an evolved universal mobile telecommunications system (UMTS) radio access network (E-UTRAN) from another radio access technology (RAT), the mobility history information including information on a time duration for which the terminal stayed outside of the E-UTRAN; receiving, from a base station, a request for the mobility history information; and transmitting the mobility history information to the base station, in response to the request.

Abstract: A system and a method minimize power consumption, signalling overhead, and processing load in blind scheduling in a mobile communication system. A User Equipment (UE) detects a type of an uplink (UL) grant while it is periodically allocated the UL grant. If there is no data to transmit using the UL grant, the UE determines whether to transmit a padding Medium Access Control (MAC) Protocol Data Unit (PDU) to an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (eNB) using the UL grant according to the type of the UL grant.

Abstract: Disclosed are a thin film transistor including a substrate and a gate electrode, a gate insulating film, a semiconductor layer, a source electrode, and a drain electrode formed on the substrate and a method of fabricating the thin film transistor, wherein the gate insulating film is made of a high dielectric ternary material, A2-XBXO3, wherein A is any one selected from the group consisting of aluminum, silicon, gallium, germanium, neodymium, gadolinium, vanadium, lutetium, and actinium, B is any one selected from the group consisting of yttrium, lanthanum, zirconium, hafnium, tantalum, titanium, vanadium, nickel, silicon, and ytterbium, and A is an element different from B. The gate insulating film may be formed through a solution process, and a high-quality insulating film may be obtained through heat treatment at low temperature.

Abstract: The present specification relates to a communication method and a communication device, and a random access method of a user equipment (UE), according to one embodiment of the present specification, comprises the steps of: sensing a random access trigger in a connected state; determining the type of the random access trigger when the random access trigger is sensed; and performing congestion control if the type of the random access trigger is a preset type.

Abstract: A photomask and a method of forming patterns using the photomask are provided. The photomask includes a mask body including a pattern region and a peripheral region and having a first surface and a second surface. Mask patterns are disposed on a portion overlapping with the pattern region of the first surface of the mask body. A shading layer is disposed in the peripheral region. The shading layer provides a spill-over-shading region extending to overlap with a critical dimension (CD) correction region in which CD correction in the pattern region is required.

Abstract: To solve the above-mentioned problem, the method for transmitting and receiving a signal by user equipment (UE) through one or more cells, according to one embodiment of the present specification, comprises the steps of: receiving, from a base station, a first message indicating whether one or more cells usable by the UE are enabled; determining which cells to enable or disable on the basis of the first message; and enabling or disabling the selected cells. According to the embodiment of the present specification, by aggregating carriers amongst different base stations, a possibility for the UE to transmit and receive high-speed data through carrier aggregation can increase.

Abstract: The present invention relates to a method and an apparatus for logging a radio resource control (RRC) failure of user equipment (UE) and receiving the log. According to one embodiment of the present invention, a method for logging an RRC failure of UE may comprise the steps of: attempting random access; if the failure of random access is sensed, logging information on the failure; and if the success of random access is sensed, transmitting information on the failure logged before the success to a connected base station. According to one embodiment of the present invention, an apparatus and a method which effectively log a channel state or a connection failure can be provided.

Abstract: A method and an apparatus for efficiently reporting user equipment (UE) are provided. A method of transmitting Power Headroom Report (PHR) of UE in a mobile communication system, includes configuring an evolved PHR including an indicator with respect of a variation factor of maximum transmission power of the UE, and transmitting the evolved PHR to an eNB. An eNB may know maximum transmission power of an UE and a variation factor thereof to enable efficient scheduling.

Abstract: The present invention relates to a method for efficiently controlling an MTC device attempting a delay tolerant access in a 3GPP system. The present invention provides a method for effectively providing a backoff time to prevent load on a wireless network, which can occur when many MTC devices in a single cell simultaneously attempt access.