Patent application number | Description | Published |
20090154408 | METHOD AND APPARATUS FOR TRANSMITTING SIP DATA OF IDLE MODE UE IN A MOBILE COMMUNICATION SYSTEM - 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. | 06-18-2009 |
20090303971 | Method and Apparatus For Transmitting/Receiving Control Message Related to Packet Call Service in an IP Multimedia Subsystem - Apparatus and Method for transmitting control message related to a packet call service in an IP multimedia subsystem (IMS) that transmits/receives an IMS control message using a control plane to reduce a delay caused by setting of a user plane in a packet call setup process. A user equipment (UE) determines whether an IMS service is registered in response to a radio resource control (RRC) connection request. The UE sets an SRB_IMS request parameter requiring that the IMS control message be processed through a signaling radio bearer (SRB) depending on whether the IMS service is registered. The UE transmits an RRC connection request message including the SRB_IMS request parameter to a radio network controller (RNC). The UE configures an SRB_IMS entity. | 12-10-2009 |
20100184434 | METHOD AND APPARATUS FOR PERFORMING MEASUREMENT ON NEIGHBORING CELLS IN A MOBILE COMMUNICATION SYSTEM - A method for performing measurement on neighboring cells in a mobile communication system is provided. The method measurement method includes generating raw measurement result values by performing measurement on received signals from neighboring cells; receiving measurement-related parameters to be applied to neighboring cells having raw measurement result values exceeding an absolute threshold signaled from a base station as a result of the measurement, among the neighboring cells; generating final measurement result values by applying the measurement-related parameters to the raw measurement result values of the first neighboring cells; and performing cell selection or cell reselection to one of the first neighboring cells according to the final measurement result values, or transmitting a measurement report to a base station of a serving cell. | 07-22-2010 |
20100254321 | METHOD AND APPRATUS FOR BUFFER STATUS REPORT IN MOBILE COMMUNICATION SYSTEM - Disclosed is a method and an apparatus for periodically reporting the buffer status in a mobile communication system. If there is a possibility that a transmission resource will be allocated to the UE, it stands by for a predetermined period of time until a transmission resource is allocated instead of directly transmitting a buffer status report so that, if possible, the buffer status report message is piggy-backed onto uplink data and transmitted. | 10-07-2010 |
20100322135 | APPARATUS AND METHOD FOR SIGNALLING SUB-FRAME ALLOCATION PATTERN - An apparatus and method for signalling sub-frame allocation pattern. The present invention is provided a method of signalling a sub-frame allocation pattern to apparatus (e.g. UE) adapted to receive wirelessly and extract data from a radio signal (e.g. a signal carrying MBMS channels) comprising a series of radio frames, each radio frame comprising a plurality of sub-frames for carrying data, the sub-frame allocation pattern indicating the position of at least each sub-frame, in the series of radio frames, allocated to carry data of one respective data channel (e.g. one MCH) of a plurality of data channels. The method comprises providing the apparatus with an indication of a set of sub-frames (e.g. a common sub-frame pool), in the series of radio frames, reserved for carrying data of said plurality of data channels (e.g. the MCHs), and providing the apparatus with an indication of a at least one sub-set (e.g. a sub-set of the common pool allocated to a particular MCH) of the set of sub-frames allocated to carry data of a respective one of said data channels. | 12-23-2010 |
20110019643 | METHOD AND APPARATUS FOR HANDOVER IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for minimizing data forwarding between Evolved Node Bs (ENBs) during handover. A User Equipment (UE) sends a status report for RLC PDUs that have suffered a change in status, to an ENB of a source cell immediately before handover occurs, thus preventing RLC PDUs which have been successfully transmitted, but for which ACK signals have not yet been received, from being forwarded. | 01-27-2011 |
20110092217 | POWER HEADROOM REPORTING METHOD AND DEVICE FOR WIRELESS COMMUNICATION SYSTEM - 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. | 04-21-2011 |
20110171988 | METHOD AND APPARATUS FOR TRANSMITTING INFORMATION ABOUT AVAILABLE POWER OF TERMINAL IN MOBILE COMMUNICATION SYSTEM - A method for transmitting power headroom information by a terminal in a mobile communication system, in which power headroom information is generated and transmitted if a change in power headroom is greater than or equal to a predetermined threshold and a total amount of data stored in a buffer of the terminal is greater than or equal to a predetermined threshold. | 07-14-2011 |
20110177815 | APPARATUS AND METHOD FOR CONNECTING RADIO LINK IN WIRELESS COMMUNICATION SYSTEM HAVING PRIVATE NETWORK CELL - Disclosed is a method of connecting a radio link of a UE in a wireless communication system including a first cell and a second cell partially or completely overlapping the first cell, the method including the steps of, when the UE fails in connecting a radio link to the first cell for a given time, performing measurement for the second cell by using prestored radio link connection information for the second cell; and if a result of the measurement satisfies given cell selection conditions, selecting the second cell. | 07-21-2011 |
20110194424 | APPARATUS AND METHOD FOR MEASURING HOME CELL/PRIVATE NETWORK CELL IN MOBILE COMMUNICATION SYSTEM - 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. | 08-11-2011 |
20120014361 | WIRELESS COMMUNICATION SYSTEM AND IDLE STATE OPERATION METHOD THEREOF - A wireless communication system and method for operation of the wireless communication system in idle mode is provided to avoid downlink inter-cell interferences. The idle state operation method of a base station for a wireless communication according to the present invention includes setting a first discontinuous transmission cycle and a first transmission transition period; transmitting downlink signals at the first discontinuous transmission cycle within the first transmission transition period; setting a second discontinuous transmission cycle and a second transmission transition period when the first transmission transition period ends; and transmitting the downlink signal at the second discontinuous transmission cycle within the second transmission transition period. | 01-19-2012 |
20120064907 | METHOD AND APPARATUS FOR CONTROLLING THE POWER OF TERMINAL IN A MOBILE COMMUNICATION SYSTEM COMPRISING A FEMTOCELL AND A MACRO BASE STATION - The present invention relates to a method for allocating a radio resource of a base station for controlling the power of a terminal in a mobile communication system including a plurality of femtocells in the service coverage of a macro base station, said method comprising: a radio resource-grouping step of dividing the radio resources shared by the macro base station and the femtocells into groups in accordance with a preset criterion; a radio resource-allocating step of randomly allocating each of the grouped radio resources to base stations such that the terminal uses maximum transmitting power in different resource areas for the plurality of base stations; and a transmitting step of transmitting the allocated radio resource information to the terminal. The method of the present invention effectively controls interferences between the terminal in communication with the macro base station and the terminal in communication with the femtocell. | 03-15-2012 |
20120195281 | METHOD AND APPARATUS FOR TRANSMITTING SCHEDULING REQUEST SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method and an apparatus are provided for transmitting a scheduling request signal of a terminal in a mobile communication system. If a Buffer Status Report (BSR) is triggered, it is checked whether the BSR is canceled. If the BSR is not cancelled, a Scheduling Request (SR) is triggered for requesting resources for transmitting the BSR. | 08-02-2012 |
20120314637 | APPARATUS AND METHOD FOR DISCONTINUOUS DATA RECEPTION IN WIRELESS COMMUNICATION SYSTEM - Disclosed in a method of discontinuous data reception in a mobile communication system. The method includes: receiving downlink data and decoding the received downlink data by the UE; when the decoding is not successful, starting a timer for receiving retransmitted data; when the downlink data has been received by a configured downlink assignment, operating a downlink carrier, through which the downlink data has been received, in an active time; and when the downlink data has been received by a dynamic transmission resource and the downlink carrier, through which the downlink data has been received, is different from a downlink carrier, through which a scheduling command for the downlink data has been received, operating the downlink carrier, through which the scheduling command for the downlink data has been received, and the downlink carrier, through which the downlink data has been received, in an active time. | 12-13-2012 |
20130094482 | METHOD AND APPARATUS FOR BUFFER STATUS REPORT IN MOBILE COMMUNICATION SYSTEM - A method and apparatus are provided for reporting a buffer status to a Node B, by a User Equipment (UE), in a mobile communication system. The method includes checking if a resource for data to be transmitted to the Node B is available, when there is a buffer status report triggered to be transmitted to the Node B; transmitting the buffer status report using the available resource, if the resource is available; and transmitting a scheduling request to the Node B, if the resource has not been allocated for a predetermined time duration. | 04-18-2013 |
20130100939 | METHOD AND APPARATUS FOR LAYER 2 ARQ FOR PACKETS - A method and a transmitter are provided for performing packet ARQ in a communication system. A first RLC PDU is generated. The first RLC PDU includes polling information having a predetermined bit, when there is no subsequent RLC PDU transmission after transmission of the first RLC PDU. A timer is started or restarted when the first RLC PDU is transmitted to a receiver. The polling information having a predetermined bit is transmitted when the timer expires. | 04-25-2013 |
20130142144 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SCHEDULING ASSIGNMENTS IN A COMMUNICATION SYSTEM - An apparatus and method for generating a Scheduling Assignment (SA), which reduces a probability of an incorrect action by a User Equipment (UE) in response to a reception of the SA, in a communication system wherein a base station transmits the SA being a first type or a second type and including at least one Information Element (IE). The method includes setting at least one bit in the at least one IE with a predetermined value, if the SA is of the second type; and setting any remaining bits in the at least one IE with arbitrary values. | 06-06-2013 |
20130142178 | METHOD AND APPARATUS FOR PERFORMING DISCONTINUOUS RECEPTION OPERATION BY CONNECTED MODE USER EQUIPMENT IN A MOBILE COMMUNICATION SYSTEM - 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. | 06-06-2013 |
20130170453 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS PROCEDURE IN A MOBILE COMMUNICATION SYSTEM - A method for performing a random access procedure by a User Equipment (UE) in a mobile communication system includes transmitting a preamble for identifying the UE, through a first message; receiving a second message from an Evolved Node B (ENB) in response to the first message, the second message including uplink (UL) transmission resource information for transmitting at least one of a transparent Radio Resource Control (RRC) message which is an RRC message that a UE having no RRC control connection transmits for the first time, and Buffer Status Report (BSR) information indicating an amount of UL data; setting a format indicator indicating if the transparent RRC message or the BSR information is included in a third message; and generating the third message according to the set format indicator, and transmitting the generated third message according to the UL transmission resource information. | 07-04-2013 |
20130189990 | METHOD AND APPARATUS IN WHICH A TERMINAL TRANSMITS A CHANNEL ESTIMATION RESULT IN A MOBILE COMMUNICATION SYSTEM - The invention relates to a method in which a terminal transmits a channel estimation result in a mobile communication system, comprising: a step in which a receiving unit receives information required for channel estimation from a serving base station; a step in which a control unit estimates a channel on the basis of the information and generates information relating to channel estimation; and a step in which a transmitting unit transmits the information relating to channel estimation to the serving base station and at least one of a plurality of neighbor base stations. | 07-25-2013 |
20130235780 | METHOD AND APPARATUS FOR OPTIMIZING POWER CONSUMPTION OF A TERMINAL IN A MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and to an apparatus for optimizing the power consumption of a terminal in a mobile communication system. The method for optimizing power consumption of a terminal in a mobile communication system comprises: a determination step of determining whether there is a need for changing a configuration for a discontinuous reception operation of the terminal; and a transmission step of transmitting, to a base station, a request message for a change in the discontinuous reception operation, if it is determined that the change is needed. | 09-12-2013 |
20130250899 | METHOD AND APPARATUS FOR ALLOCATING RADIO RESOURCE USING RANDOM ACCESS PROCEDURE IN A MOBILE COMMUNICATION SYSTEM - 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. | 09-26-2013 |
20130308574 | METHOD OF TRANSMITTING SCHEDULING REQUEST IN MOBILE COMMUNICATION SYSTEM AND TERMINAL APPARATUS FOR THE SAME - A method and apparatus are provided for transmitting an uplink scheduling request in a mobile communication system. Scheduling request transmission cycles are set according to priorities between a terminal and a radio resource controlling node. The terminal transmits the scheduling request to the radio resource controlling node according to a scheduling request transmission cycle corresponding to a highest priority among priorities corresponding to uplink data or uplink control signals, if the uplink data or the uplink control signals are generated from an upper layer. The terminal receives scheduling information from the radio resource controlling node, and determines whether resource allocation information is included in the scheduling information. The terminal cyclically transmits the scheduling request to the radio resource controlling node in the scheduling request transmission cycle, if the resource allocation information is not included in the scheduling information. | 11-21-2013 |
20130322387 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS PROCEDURE IN A MOBILE COMMUNICATION SYSTEM - A method for performing a random access procedure by a User Equipment (UE) in a mobile communication system includes transmitting a preamble for identifying the UE, through a first message; receiving a second message from an Evolved Node B (ENB) in response to the first message, the second message including uplink (UL) transmission resource information for transmitting at least one of a transparent Radio Resource Control (RRC) message which is an RRC message that a UE having no RRC control connection transmits for the first time, and Buffer Status Report (BSR) information indicating an amount of UL data; setting a format indicator indicating if the transparent RRC message or the BSR information is included in a third message; and generating the third message according to the set format indicator, and transmitting the generated third message according to the UL transmission resource information. | 12-05-2013 |
20130329593 | METHOD AND APPARATUS FOR GENERATING AND REPORTING CHANNEL MEASUREMENT INFORMATION IN WIRELESS COMMUNICATION SYSTEM - The present invention pertains to a method for efficiently determining the validity of terminal location information in a minimization of drive test (MDT) measurement report procedure in a 3GPP system. The method for reporting channel measurement information of a terminal in a wireless communication system according to the present invention comprises: a reception step of receiving setup information for wireless channel measurement from a base station; an acquisition step of acquiring wireless channel information, location information of the terminal, and time information when the location information is collected according to the setup information; a determination step of determining whether the location information of the terminal is valid; and a transmission step of generating and transmitting channel measurement information inc1uding the time information to the base station when valid. | 12-12-2013 |
20130343330 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING PACKETS IN A MOBILE COMMUNICATION SYSTEM SUPPORTING HYBRID AUTOMATIC REPEAT REQUEST - An apparatus and method are provided for operating Hybrid Automatic Repeat reQuest (HARQ) in a mobile communication system. The method includes receiving a number of HARQ processes of a persistent resource allocation and persistent resource allocation interval information; receiving data according to the persistent resource allocation interval information; calculating a HARQ process IDentifier (ID) using the number of HARQ processes of the persistent resource allocation, the persistent resource allocation interval information, and time information; and associating a HARQ process with the calculated HARQ process ID. | 12-26-2013 |
20140029563 | METHOD AND APPARATUS FOR USER EQUIPMENT IN BATTERY SAVING MODE TRANSMITTING REVERSE DIRECTION CONTROL SIGNAL IN MOBILE COMMUNICATION SYSTEM - The present disclosure relates to a method and apparatus for a user equipment to transmit control signals to a base station in a wireless communication system supporting discontinuous reception (DRX). In particular, the method for a user equipment to transmit control signals to a base station includes: receiving a downlink control channel indicating new uplink or downlink transmission in a first period preset with reference to the last subframe of an active time; and selectively skipping transmission of a control signal in a preset second period starting from a subframe at which the downlink control channel is received. In addition, a user equipment transmitting control signals to a base station includes: a transceiver unit to send and receive signals to and from the base station; and a control unit determining, when a downlink control channel indicating new uplink or downlink transmission is received by the transceiver unit in a first period preset with reference to the last subframe of an active time, whether to selectively transmit a control signal in a preset second period starting from a subframe at which the downlink control channel is received. | 01-30-2014 |
20140036685 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN MOBILE COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for transmitting/receiving data, and a method for a user equipment transmitting data, according to one embodiment of the present invention, comprises: a step of determining conditions for determining whether a condition for transmitting short data is satisfied, when data to be transmitted is generated; and a step of including the data to be transmitted in a radio resource control (RRC) connection setup completion message and transmitting same, when the condition for transmitting the short data is satisfied. According to one embodiment of the present invention, the problem of network overload can be prevented by reducing signaling overhead when processing small packets, which are generated intermittently, in the mobile communication system, and an apparatus and a method for enhancing battery performance in the user equipment can be effectively provided. | 02-06-2014 |
20140036882 | METHOD AND SYSTEM OF HANDLING IN-DEVICE COEXISTENCE IN VARIOUS WIRELESS NETWORK TECHNOLOGIES - A method and system for handling in-device co-existence in wireless network technologies is disclosed. The method provides Time Division Multiplexing and power domain based solutions for in device co-existence. In TDM based approach, the method sends interference indication and assistant information to the Base station. In an embodiment, a preferred solution may also be sent to the Base station. Further, the Base station takes a decision on the preferred solution to be employed. In power domain approach, Base station reduces the transmission power of the LTE uplink transmission which actually overlaps with ISM/GNSS reception opportunity. Further, a hybrid based solution for implementation of TDM and power domain solution based on the scenario is also disclosed. Even though the proposed mechanism is discussed from 3GPP LTE/LTE-Advanced context, it is in general applicable to similar cellular technologies. | 02-06-2014 |
20140038610 | APPARATUS AND METHOD FOR PERFORMING CELL SELECTION TO HOME CELL OR PRIVATE NETWORK IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for performing cell selection to a Home cell or a Private network in a mobile communication system are provided, in which a User Equipment (UE) determines a candidate cell by measuring a serving cell and neighbor cells, receives an indicator indicating a Home cell or a Private network in system information from the candidate cell, determines whether the candidate cell is included in a Home cell or Private network list set in the UE, and selects the candidate cell if the candidate cell is included in the Home cell or Private network list. | 02-06-2014 |
20140071947 | METHOD AND APPARATUS FOR PERFORMING HANDOVER USING PACKET DATA CONVERGENCE PROTOCOL (PDCP) REORDERING IN MOBILE COMMUNICATION SYSTEM - Improving communication efficiency in handover re-establishing an ARQ entity in a mobile communication system is disclosed. The method includes transmitting first Packet Data Convergence Protocol (PDCP) Packet Data Units (PDUs) correctly received from the source cell, together with a special indication requiring reordering of the first PDCP PDUs, from a Radio Link Control (RLC) receiving buffer to a PDCP receiving entity when a handover command message from a source cell to a target cell is received; buffering the first PDCP PDUs in a PDCP PDU reordering buffer by the PDCP receiving entity in response to the special indication; and when a second PDCP PDU is received from the target cell through a new RLC receiving entity for the target cell, outputting third PDCP PDUs up to a PDCP PDU before a first missing PDCP PDU having a sequence number higher than that of the second PDCP PDU from the PDCP reordering buffer. In the method, a PDCP entity performs reordering, thereby improving efficiency of communication. | 03-13-2014 |
20140071948 | METHOD AND APPARATUS FOR PERFORMING HANDOVER USING PACKET DATA CONVERGENCE PROTOCOL (PDCP) REORDERING IN MOBILE COMMUNICATION SYSTEM - Improving communication efficiency in handover re-establishing an ARQ entity in a mobile communication system is disclosed. The method includes transmitting first Packet Data Convergence Protocol (PDCP) Packet Data Units (PDUs) correctly received from the source cell, together with a special indication requiring reordering of the first PDCP PDUs, from a Radio Link Control (RLC) receiving buffer to a PDCP receiving entity when a handover command message from a source cell to a target cell is received; buffering the first PDCP PDUs in a PDCP PDU reordering buffer by the PDCP receiving entity in response to the special indication; and when a second PDCP PDU is received from the target cell through a new RLC receiving entity for the target cell, outputting third PDCP PDUs up to a PDCP PDU before a first missing PDCP PDU having a sequence number higher than that of the second PDCP PDU from the PDCP reordering buffer. In the method, a PDCP entity performs reordering, thereby improving efficiency of communication. | 03-13-2014 |
20140146697 | METHOD AND APPARATUS FOR PERFORMING COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for performing communication in a wireless communication system are provided. The method includes receiving Measurement Gap (MG) configuration information related to the measurement gap, determining a subframe number specifying a starting point of the measurement gap based on the measurement gap configuration information, starting the measurement gap at an end of a subframe immediately before a subframe of the determined subframe number, performing a predetermined measurement operation during the measurement gap, and performing a predetermined operation in a subframe immediately after the measurement gap based on a duplexing mode of a User Equipment (UE) and a type of the subframe immediately before the measurement gap. | 05-29-2014 |
20140146907 | METHOD AND APPARATUS FOR PERFORMING COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for performing communication in a wireless communication system are provided. The method includes identifying a transmission mode configured for a serving cell by a Base Station (BS), by a User Equipment (UE), identifying an antenna configuration of the BS by the UE, determining the number of bits for a Rank Indication (RI) representing the number of layers based on the transmission mode and the antenna configuration, and generating an RI using the determined number of bits and transmitting the RI in transmission resources of the serving cell to the BS by the. | 05-29-2014 |
20140185484 | WIRELESS COMMUNICATION SYSTEM FOR MONITORING WIRELESS LINKS DURING TRANSMISSION GAPS - A method and apparatus are provided for measuring a link quality by a User Equipment (UE) in a communication system. The method includes receiving, from a wireless access network, a control message including an s-Measure including a serving cell quality threshold and gap configuration information used for setting up and releasing measurement gaps; setting up a measurement gap configuration indicated by the gap configuration information; if a link quality related to a serving cell is lower than the serving cell quality threshold, measuring a link quality related to at least one neighboring cell during a period according to the measurement gap configuration; and transmitting, to the wireless access network, a measurement report including a result of the measuring. | 07-03-2014 |
20140194117 | DEVICE AND METHOD FOR SELECTING A CELL ACCORDING TO A SPEED OF A TERMINAL IN A MOBILE COMMUNICATION NETWORK - 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. | 07-10-2014 |
20140211776 | METHOD AND APPARATUS FOR SELECTING WIRELESS LOCAL AREA NETWORK TO BE ACCESSED BY A USER EQUIPMENT WITHIN A CELL IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for selecting a wireless Local Area Network (LAN) within a cell to be accessed by a User Equipment (UE) in a mobile communication system are provided. The method includes performing, when a request for information regarding wireless LAN Access Points (APs) within the cell is received, a search for the wireless LAN APs and transmitting a report indicating a search result to a serving Evolved Node B (ENB); receiving, from the serving ENB, updated information on wireless LAN APs based on report indicating the search result; determining whether to perform a re-search for the wireless LAN APs based on the updated information on the wireless LAN APs; and performing, in response to determination to perform the re-search for the wireless LAN APs, the re-search and selecting APs to be accessed based on a result of the re-search. | 07-31-2014 |
20140233499 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SCHEDULING ASSIGNMENTS IN A COMMUNICATION SYSTEM - A method and apparatus for receiving a Scheduling Assignment (SA) by a User Equipment (UE) in a communication system in which a base station transmits the SA being a first type or a second type, the SA including a set of Information Elements (IEs), and a first IE. The method includes receiving the SA; identifying that each bit included in the set of IEs of the SA and at least one bit included in the first IE of the SA are set with a predetermined value; and performing an action corresponding to the SA of the second type, if each bit included in the set of IEs of the SA and the at least one bit included in the first IE of the SA are set with the predetermined value. | 08-21-2014 |
20140233500 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SCHEDULING ASSIGNMENTS IN A COMMUNICATION SYSTEM - A method and apparatus are provided for receiving a Scheduling Assignment (SA) by a User Equipment (UE) in a communication system in which a base station transmits the SA including at least one Information Element (IE). The method includes receiving the SA; identifying if a first IE included in the received SA is set with a first predetermined value and at least one bit in a second IE included in the received SA is set with a second predetermined value; and performing an action corresponding to a semi-persistent scheduling, if the first IE included in the received SA is set with the first predetermined value and the at least one bit in the second IE included in the received SA is set with the second predetermined value | 08-21-2014 |
20140254527 | METHOD AND APPARATUS FOR TRANSMITTING INFORMATION ABOUT AVAILABLE POWER OF TERMINAL IN MOBILE COMMUNICATION SYSTEM - A method and apparatus are provided for transmitting power headroom information by a terminal in a mobile communication system. The method includes obtaining, by the terminal, an uplink transmission resource; obtaining, by the terminal, a path loss; and if the path loss is changed more than a threshold since a last transmission of a power headroom, obtaining power headroom information using a maximum transmission output of the terminal and a transmission power of the terminal, and transmitting the power headroom information using the uplink transmission resource. | 09-11-2014 |
20140287694 | METHOD AND DEVICE FOR SUGGESTING RECORDING INFORMATION AND ACQUIRING POSITIONAL INFORMATION TO ALLOW MDT TECHNOLOGY TO BE EFFECTIVELY UTILIZED IN A MOBILE COMMUNICATION SYSTEM - A method of measuring channel information using a terminal in a communication system, according to an embodiment of the present invention, includes the steps of: receiving channel measurement setup information from a base station; entering an idle mode in the state of communication with the base station; measuring information indicating according to the channel measurement setup information; and transmitting a signal including the measured information to the base station. In addition, a terminal for measuring channel information according to another embodiment of the present invention includes: a transmitting/receiving unit for receiving channel measurement setup information from a base station; and a control unit for controlling the terminal so that the terminal enters an idle mode in the state of communication with the base station and measures information indicating according to the channel measurement setup information, wherein the transmitting receiving unit transmits a signal including the measured information to the base station. According to an embodiment of the present invention, it is easier to identify a channel state by using an MDT measurement result by further reporting various pieces of information when measuring MDT. In addition, it is possible to perform a report on MDT measurement by using a terminal and thus the need for a drive test may be reduced. | 09-25-2014 |
20140287764 | APPARATUS AND METHOD FOR CONNECTING RADIO LINK IN WIRELESS COMMUNICATION SYSTEM HAVING PRIVATE NETWORK CELL - A method is provided connecting a radio link of a UE in a wireless communication system. The method includes selecting, when the UE fails in connecting the radio link to a first cell for a given time, at least one second cell by using radio link connection information for the first cell overlapping the least one second cell; performing, if a number of the selected second cell is one, cell selection or cell reselection on the selected second cell by using the radio link connection information without performing measurement for the selected second cell; and performing, if the number of the selected second cell is a plurality, measurement for the plurality of selected second cells by using the radio link connection information, and performing cell selection or cell reselection on a second cell decided from among the plurality of selected second cells based on the measured result. | 09-25-2014 |
20140301312 | METHOD AND APPARATUS FOR TRANSMITTING SCHEDULING REQUEST SIGNAL IN MOBILE COMMUNICATION SYSTEM - A method and an apparatus are provided for receiving a scheduling request in a mobile communication system. Information related to Scheduling Request (SR) transmission resources is transmitted to a User Equipment (UE). An SR is received from the UE. For the received SR, the UE checks whether at least one Buffer Status Report (BSR) is triggered and canceled, and the SR is received if the at least one BSR is triggered and not canceled | 10-09-2014 |
20140307672 | APPARATUS AND METHOD FOR ENABLING LOW LATENCY TRANSMISSIONS IN THE UPLINK OF A COMMUNICATION SYSTEM - A method is provided for transmitting signals in an uplink channel by a UE in a communication system. Downlink control information including information indicating second frequency resources is received from a base station. The UE determines first frequency resources for transmission of the signals in the uplink channel from the information indicating the second frequency resources. The UE transmits the signals in the uplink channel using the first frequency resources. | 10-16-2014 |
20140307719 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING PACKETS IN A MOBILE COMMUNICATION SYSTEM SUPPORTING HYBRID AUTOMATIC REPEAT REQUEST - An apparatus and a method are provided for receiving data in a communication system. Information is received representative of a number of processes of a persistent resource allocation and a persistent resource allocation interval. Data is received in a new transmission based on the received information. A HARQ process ID is calculated using the number of processes of the persistent resource allocation, the persistent resource allocation interval, and time information. Control information including the HARQ process ID is received. Data is received in a retransmission, based on the control information including the HARQ process ID. The data received in the new transmission and the data received in the retransmission are combined. The combined data is decoded. | 10-16-2014 |
20140317456 | METHOD AND APPARATUS FOR LOGGING - 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. | 10-23-2014 |
20140321396 | CHANNEL STATE INFORMATION REQUEST/FEEDBACK METHOD AND APPARATUS - Methods and apparatuses are provided for Channel State Information (CSI) feedback. An Uplink (UL) grant is received from a Node B. Information included in the UL grant is identified. If the information is mapped to at least one DownLink (DL) Component Carrier (CC) based on configuration information relating to at least one set including the at least one DL CC, at least one CSI corresponding to the at least one DL CC is generated. The generated at least one CSI is transmitted to the Node B. | 10-30-2014 |
20140328289 | METHOD AND APPARATUS FOR PROCESSING UPLINK DATA BY DRX-MODE TERMINAL IN MOBILE TELECOMMUNICATION SYSTEM - Disclosed is a method and apparatus for transmitting data by a terminal in a mobile telecommunication system, the method including transmitting a scheduling request for requesting resources for transmitting the data, monitoring a control channel to receive resource allocation information, continuously monitoring the control channel during a first period if the resources are allocated, transmitting the data based on the allocated resources, and monitoring the control channel to receive feedback information corresponding to the data during a second period following the transmission of the data. | 11-06-2014 |
20140329557 | METHOD AND APPARATUS FOR REPORTING DUAL MODE CAPABILITIES IN A LONG TERM EVOLUTION NETWORK - An apparatus for communicating with a Long-Term Evolution LTE network comprises a wireless communications module FDD operable in a Frequency Division Duplexing FDD mode and a Time Division Duplexing TDD mode, the apparatus having different capabilities in the FDD and TDD modes. The apparatus sends capability information related to capabilities and/or feature groups supported by the apparatus to the network, the capability information including a legacy part and an extension part such that a legacy LTE node can comprehend the capability information from the legacy part and not from the extension part. The extension part is included in an existing User Equipment Evolved Universal Terrestrial Radio Access UE-EUTRA-Capability Information Element, or is separate to the UE-EUTRA-Capability Information Element. A Radio Access Network RAN node for use in the LTE network is also disclosed, the node being arranged to identify different capabilities and/or feature groups supported by the apparatus in the FDD and TDD modes based on the capability information. Methods for use in the apparatus and node are also provided. | 11-06-2014 |
20140376436 | METHOD AND APPARATUS FOR PERFORMING DISCONTINUOUS RECEPTION OPERATION BY CONNECTED MODE USER EQUIPMENT IN A MOBILE COMMUNICATION SYSTEM - Methods and apparatuses are provided for establishing time alignment by a terminal in a mobile communication system. First information for discontinuous reception (DRX) operation is received from a base station. A downlink control channel is monitored based on the first information. Second information for identifying a dedicated preamble on the downlink control channel is received from the base station. The dedicated preamble is transmitted to the base station based on the second information. A response message to the transmitted dedicated preamble is received from the base station on a downlink shared channel. The response message includes timing adjustment information and third 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 is transmitted to the base station based on the third information. | 12-25-2014 |
20140378114 | METHOD AND APPARATUS FOR EFFICIENTLY TRANSMITTING SMALL AMOUNTS OF DATA IN WIRELESS COMMUNICATION SYSTEMS - 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. | 12-25-2014 |
20150043494 | APPARATUS AND METHOD FOR DISCONTINUOUS DATA RECEPTION IN WIRELESS COMMUNICATION SYSTEM - Disclosed in a method of discontinuous data reception in a mobile communication system. The method includes: receiving downlink data and decoding the received downlink data by the UE; when the decoding is not successful, starting a timer for receiving retransmitted data; when the downlink data has been received by a configured downlink assignment, operating a downlink carrier, through which the downlink data has been received, in an active time; and when the downlink data has been received by a dynamic transmission resource and the downlink carrier, through which the downlink data has been received, is different from a downlink carrier, through which a scheduling command for the downlink data has been received, operating the downlink carrier, through which the scheduling command for the downlink data has been received, and the downlink carrier, through which the downlink data has been received, in an active time. | 02-12-2015 |
20150072690 | METHOD AND APPARATUS FOR CONTROLLING UPLINK TRANSMISSION POWER OF USER EQUIPMENT - The present invention relates to a method and an apparatus for reducing the amount of interference power in a heterogeneous network environment by controlling uplink transmission power of user equipment. The method for a serving base station controlling uplink transmission power includes: receiving from the user equipment a signal measurement report with respect to a first neighboring base station, which transmits the strongest signal to the user equipment; transmitting to the user equipment a control signal including a path loss value, which is to be used for calculating the uplink transmission power; transmitting to the user equipment and the first neighboring base station scheduling information with respect to the user equipment; and receiving from the first neighboring base station an uplink signal of the user equipment which the first neighboring base station has received. The present invention can adjust uplink transmission power based on a small base station close to the user equipment, and enables the small base station to receive uplink signal of the user equipment and forward it to the macro base station, thereby maintaining a Qos of the user equipment and minimizing the amount of interference power affecting another cell. | 03-12-2015 |
20150072720 | METHOD AND APPARATUS FOR EFFICIENTLY CONTROLLING UPLINK CONTROL SIGNAL OF USER EQUIPMENT IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method and an apparatus for efficiently controlling an uplink control signal of user equipment in an environment where a macro cell and a repeater exist together, and the method for controlling uplink transmission power of the user equipment in the wireless communication system, according to the present invention, comprises: an obtaining step for receiving a reference signal from a base station and obtaining a channel state information value; a determining step for determining whether a scaling condition is satisfied by using the channel state information value that is obtained; a calculating step for calculating a transmission power on the basis of scheduling information when the scaling condition is satisfied; and a transmitting step for transmitting data by using the transmission power that is calculated. | 03-12-2015 |
20150087296 | METHOD AND DEVICE FOR REPORTING POWER HEADROOM IN MOBILE COMMUNICATION SYSTEM FOR CARRIER AGGREGATION - Provided are a method and apparatus for reporting power headroom in a mobile communication system supporting carrier aggregation. A user equipment (UE) determines the maximum transmit power for each carrier and the maximum UE transmit power, and sends a power headroom report that contains power headroom for each carrier computed based on the maximum transmit power for the carrier and the maximum UE transmit power to a corresponding base station (ENB). | 03-26-2015 |
20150087313 | METHOD AND DEVICE FOR PRESERVING MOBILITY INFORMATION IN TERMINAL STATE TRANSITION AND EFFECTIVELY RE-ACCESSING IN HETEROGENEOUS CELL NETWORK IN MOBILE COMMUNICATION SYSTEM - The present invention pertains to a method and device for preserving mobility information in terminal state transition and effectively re-accessing in a heterogeneous cell network in a mobile communication system. A method for estimating a mobility state of a terminal in a mobile communication system according to one embodiment of the present invention may comprise the steps of: receiving, by the terminal, system information from a serving cell during an idle state; calculating mobility state information by using the received system information; storing the mobility state information; and transmitting the mobility state information to a base station when the terminal is connected to the base station. According to one embodiment of the present invention, when an idle state of a terminal is changed to a connection state in a mobile communication system, a mobility state of the terminal can be more effectively estimated. | 03-26-2015 |