Patent application number | Description | Published |
20080205349 | APPARATUS AND METHOD FOR ENCODING AND DECODING CONTROL INFORMATION IN A MOBILE COMMUNICATION SYSTEM SUPPORTING HIGH-SPEED PACKET DATA TRANSMISSION - A method for encoding a control channel to transmit high-speed packet data in a base station of a high-speed packet data communication system. The method includes encoding a User Equipment Identifier (UE ID) of a UE that will receive the high-speed packet data, and rate-matching the encoded UE ID to generate a first stream; generating an offset value for cyclic-shifting the first stream, using the UE ID; encoding control information that the UE needs to receive the high-speed packet data, and rate-matching the encoded control information to generate a second stream; cyclic-shifting each of the first stream and the second stream by the offset value; and masking the cyclic-shifted second stream with the cyclic-shifted stream before transmission. | 08-28-2008 |
20080212464 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A SINGLE CARRIER FDMA SYSTEM - Provided is a method and an apparatus for transmitting a large quantity of control information in a mobile communication system. When there is no uplink data to be transmitted, a UE spreads second control information, a quantity of which is less than or equal to a pre-defined threshold, by using a ZC sequence cyclic-shifted according to resource blocks, each of which indicates at least one time interval used for a transmission of the second control information. When there is uplink data to be transmitted, the UE performs TDM of the uplink data with third control information. When there is no uplink data to be transmitted and the quantity of control information exceeds a pre-defined threshold, or when the first control information includes various types of information, the UE spreads the first control information in a time domain by the orthogonal codes. | 09-04-2008 |
20080212555 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION TO RANDOMIZE INTER-CELL INTERFERENCE IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving control information in an SC-FDMA system are provided, in which different cyclic shift values are generated for different SC-FDMA symbols in one of a slot and a subframe, a sequence allocated for CDM of control information is cyclically shifted by the cyclic shift values, and a control channel signal including the control information is combined with the cyclically shifted sequences on an SC-FDMA symbol basis and transmitted in the SC-FDMA symbols. | 09-04-2008 |
20080273516 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION TO RANDOMIZE INTER-CELL INTERFERENCE IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving control information in an SC-FDMA system are provided. Different orthogonal codes are generated for different slots each including a plurality of SC-FDMA symbols in a subframe. A control channel signal is generated by multiplying control symbols carrying control information by a sequence allocated for CDM of the control information. The control channel signal is multiplied by chips of the orthogonal codes on an SC-FDMA symbol basis and transmitted in the SC-FDMA symbols. | 11-06-2008 |
20080311942 | METHOD AND APPARATUS FOR ALLOCATING AND ACQUIRING ACK/NACK RESOURCES IN A MOBILE COMMUNICATION SYSTEM - A method for allocating resources for transmission of an uplink Acknowledgement (ACK)/Negative ACK (NACK) used for indicating success/failure in reception of downlink transmission data by a base station in a mobile communication system. The resource allocation method includes determining a mapping rule between control channel elements constituting a downlink control channel and resources for ACK/NACK transmission; transmitting, to at least one User Equipment (UE), control information used for indicating to acquire the determined mapping rule and resources for ACK/NACK transmission allocated using the mapping rule; transmitting a downlink data channel though a predetermined scheduling operation; and transmitting the downlink control channel to the UE. | 12-18-2008 |
20090055703 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING THE HYBRID-ARQ ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - An apparatus and method for transmitting/receiving a Hybrid Automatic Repeat reQuest (HARQ) Acknowledge/Negative acknowledge (ACK/NACK) signal in a mobile communication system. The present invention distributes a CDM segment, to which an ACK/NACK signal is mapped, in the frequency domain of an OFDM symbol, and repeatedly transmits the CDM segment, thereby providing diversity gain in the time-frequency domain. Further, the present invention provides a mapping rule for distributing transmit power between OFDM symbols to which the ACK/NACK signal is mapped and transmitted, thereby preventing the case where a particular OFDM symbol is power-overloaded, and thus contributing to improvement of the entire system performance. | 02-26-2009 |
20090097447 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES OF A CONTROL CHANNEL IN A MOBILE COMMUNICATION SYSTEM USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING - A method is provided for allocating resources of a control channel in a mobile communication system using Orthogonal Frequency Division Multiplexing (OFDM). The method includes, when a time index and a frequency index of available Resource Elements (REs) are defined as l and k, respectively, dividing the available REs in a two-dimensional structure of (k, l); and time-first-allocating each RE to a plurality of RE groups while increasing the time index l for each frequency index k from an initial value up to a predetermined range. | 04-16-2009 |
20090100300 | METHOD AND APPARATUS FOR INTERLEAVING DATA IN A MOBILE COMMUNICATION SYSTEM - An interleaving method to which time-first-mapping is applied for a plurality of channel-coded and rate-matched code blocks considering a modulation scheme in a mobile communication system is provided. The interleaving method includes determining sizes of a horizontal area and a vertical area of an interleaver memory, selecting a defined number of adjacent coded symbols in a same code block according to a modulation scheme, generating modulation groups in a vertical direction, sequentially writing the modulation groups in the horizontal area on a row-by-row basis, and sequentially reading the symbols written in the interleaver memory on a column-by-column basis. | 04-16-2009 |
20090175248 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING ENHANCED RACH IN A MOBILE COMMUNICATION SYSTEM - A method for transmitting an enhanced Random Access CHannel (RACH) in a User Equipment (UE) in a mobile communication system is provided, in which the UE transmits an uplink preamble to a Node B and upon receipt of an ACKnowledgment (ACK) for the uplink preamble, transmits an Enhanced Uplink Dedicated CHannel (E-DCH) and a Dedicated Physical Control CHannel (DPCCH) to the Node B. The transmission of the DPCCH starts before the transmission of the E-DCH. | 07-09-2009 |
20090196235 | Method And Apparatus For Setting Gain Factors For Dedicated Physical Channels In A Mobile Telecommunications System - An apparatus and method are provided for setting gain factors for dedicated physical channels in a mobile communication system. The UE receives configuration information indicating uplink dedicated physical channel configuration. The UE sets a gain factor of a dedicated physical control channel (DPCCH) to 1 in the case that no DPDCH is configured. The UE calculates a gain factor of a enhanced dedicated physical control channel (E-DPCCH) using the gain factor of the DPCCH. | 08-06-2009 |
20090213814 | METHOD AND APPARATUS FOR PROVIDING UPLINK PACKET DATA SERVICE IN ASYNCHRONOUS WCDMA SYSTEM - Disclosed is a method and apparatus for providing uplink packet data services through an E-DCH in an asynchronous WCDMA system. A transport block size (TBS) for transmitting uplink transport channel data is determined. A combination of a spreading factor and a modulation scheme for uplink channel data transmission, corresponding to the determined TBS, is selected according to transmittable physical channel data bit sizes and puncturing limit values. The TBS is transmitted by incorporating it into control information of the uplink transport channel data. The modulation scheme and spreading factor combination is determined based on a physical channel data bit size that maximizes transmission efficiency and minimizes the number of punctured bits, without requiring an additional physical channel in transmitting the uplink data having the TBS. This method maximizes uplink transmission efficiency to save transmission resources and reduces signaling overhead required to transmit E-DCH control information. | 08-27-2009 |
20090245209 | APPARATUS AND METHOD FOR ALLOCATING OVSF CODES AND I/Q CHANNELS FOR REDUCING PEAK-TO-AVERAGE POWER RATIO IN TRANSMITTING DATA VIA ENHANCED UP-LINK DEDICATED CHANNELS IN WCDMA SYSTEMS - An apparatus and method in which an Enhanced Uplink Dedicated transport CHannel (EUDCH) is used in a Wideband Code Division Multiple Access (WCDMA) system is provided. In a User Equipment (UE), when physical channels for transmitting EUDCH data are transmitted in addition to existing physical channels, a Peak-to-Average Power Ratio (PAPR) of an uplink transport signal increases. The increase in PAPR depends upon Orthogonal Variable Spreading Factor (OVSF) codes allocated to the corresponding physical channels and In-phase/Quadrature-phase (I/Q) channels. Therefore, the apparatus and method allocate optimum OVSF codes and I/Q channels to EUDCH-related physical channels in order to minimize an increase in PAPR due to EUDCH. | 10-01-2009 |
20090291709 | MOBILE TERMINAL - A mobile terminal includes an upper casing having at least one exposure opening formed by penetrating a predetermined area thereof, a lower casing coupled to the upper casing to face each other and having an accommodation space formed therein and capable of accommodating an internal part assembly including a printed circuit board, and a middle frame arranged between the upper casing and the lower casing and coupled to the upper casing and the lower casing, and supporting installation parts electrically connected to the internal part assembly and installed such that at least part thereof is exposed to the outside through the exposure opening. A resin mold waterproof ring which is injection molded of synthetic resin having elasticity to have a predetermined width along at least part of an edge portion of the middle frame is integrally coupled to the middle frame and, when the upper casing, the lower casing, and the middle frame are coupled one another, the resin mold waterproof ring is pressed by the upper casing and the lower casing to seal a gap between the upper casing and the lower casing. | 11-26-2009 |
20090323639 | FAST SERVING CELL CHANGE METHOD AND APPARATUS FOR MOBILE COMMUNICATION SYSTEM - A serving cell change method and apparatus is provided for efficiently performing the serving cell change in a mobile communication system. The UE receives a cell change control information including an activation time from a serving cell, when a downlink channel status of the serving cell is inferior to a downlink channel status of a target cell, reports a measurement result to the serving cell while performing data communication with the serving cell, monitors receipt of a cell change indicator transmitted by the target cell before the expiration of the activation time while performing the data communication with the serving cell, and when the cell change indicator is received, communicates data with the target cell by sending an acknowledgement in response to the cell change indicator and switching to the target cell. | 12-31-2009 |
20100002674 | Method for configuring gain factors for uplink service in radio telecommunication system - A method for configuring gain factors in a WCDMA telecommunication system is provided in which the gain factor for defining power required for normal reception of uplink data in an environment supporting an uplink service over an E-DCH can be configured using minimal signaling information. First gain factors for first TFs corresponding to a part of a TF set including a plurality of TFs available for an uplink service are received. One of the first TFs is determined as a reference TF for a second TF other than the first TFs in the TF set. Then, a second gain factor for the second TF is calculated using the first gain factor for the determined reference TF. The second gain factor is used for transmitting or receiving uplink data. | 01-07-2010 |
20100034114 | CQI REPORTING METHOD AND APPARATUS FOR MOBILE TELECOMMUNICATION SYSTEM - A CQI reporting method for a Dual-Cell HSDPA service of a mobile communication system is provided for reducing CQI reporting overhead. A user terminal transmits channel quality indicators for downlink channels in a mobile communication system, measures channel qualities of a first downlink channel and a second downlink channel, compares the channel qualities of the first and second downlink channels with each other, selects at least one channel quality of the first and second downlink channels, and transmits at least one channel quality indicator indicating the at least one channel quality. | 02-11-2010 |
20100103899 | Method and apparatus for signaling user equipment status information for uplink packet transmission in a soft handover region - A method and apparatus are provided for transmitting user equipment (UE) status information in communication with one serving Node B and at least one non-serving Node B in a mobile communication system. The method and apparatus comprise generating transport channel data including UE status information; transmitting the transport channel data to the serving Node B and the at least one non-serving Node B, receiving a response signal for the transport channel data from the serving Node B, and retransmitting the transport channel data if the response signal received from the serving Node B is a non-acknowledge (NACK) signal, and ending the retransmission of the transport channel data if the response signal received from the serving Node B is an acknowledge (ACK) signal. | 04-29-2010 |
20100173641 | APPARATUS AND METHOD FOR ALLOCATING RESOURCE IN A MOBILE COMMUNICATION SYSTEM - A method for allocating resources in a mobile communication system is provided. The resource allocation method includes determining whether a transmission time of response information indicating presence/absence of an error in received data overlaps a transmission time of channel state information; and when the transmission times overlap each other, allocating, to the response information, a resource block for the channel state information, cyclic shift values in a frequency domain, and orthogonal sequences having orthogonality in a time domain. | 07-08-2010 |
20100195575 | TRANSMITTING UPLINK CONTROL INFORMATION OVER A DATA CHANNEL OR OVER A CONTROL CHANNEL - Methods and apparatus are described for a User Equipment (UE) to concurrently transmit Uplink Control Information (UCI) and data information to a Node B. The Node B can configure the UE whether to transmit UCI together with data information in a Physical Uplink Shared CHannel (PUSCH) or, separate from data information, in a Physical Uplink Control CHannel (PUCCH). The UE may also determine whether to transmit UCI together with data information in the PUSCH or, separate from data information, in the PUCCH based on criteria involving either a ratio of PUSCH resources for UCI transmission over the total PUSCH resources, a Modulation and Coding Scheme (MCS) for the data information, an absolute power difference between PUCCH and PUSCH transmissions, whether the PUSCH transmission uses frequency hopping, or whether spatial multiplexing is used for the data transmission. | 08-05-2010 |
20100265921 | METHOD AND APPARATUS FOR PROVIDING UPLINK PACKET DATA SERVICE IN ASYNCHRONOUS WCDMA SYSTEM - A method and apparatus are provided for providing a packet data service in an asynchronous Wideband Code Division Multiple Access (WCDMA) system. A combination of physical channel elements are determined based on combinations of physical channel elements and a first Puncturing Limit (PL). Packet data is transmitted using the determined physical channel elements. A second PL is used for a maximum combination of physical channel elements when no combination of physical channel elements are available to satisfy the first PL. | 10-21-2010 |
20100272019 | MULTIPLEXING LARGE PAYLOADS OF CONTROL INFORMATION FROM USER EQUIPMENTS - Disclosed is multiplexing transmissions of Uplink Control Information (UCI) signals having variable payloads from User Equipments (UEs). The UCI transmission uses a first format type if its size is less than or equal to a predetermined values and it uses a second format type if its size is greater than a predetermined value. When the first format type is used the UE multiplexing is through a first method while when the second format type is used the UE multiplexing is through a second method which is different than the first method. The structure of the second format type is the same as the structure used for the transmission of data information by UEs. The UEs can also be grouped and UCI transmission can be triggered through the reception of control signaling addressing a group of UEs and indicating UCI transmission by a sub-group of UEs in the group of UEs. | 10-28-2010 |
20100278109 | MULTIPLEXING LARGE PAYLOADS OF CONTROL INFORMATION FROM USER EQUIPMENTS - Disclosed is multiplexing transmissions of Uplink Control Information (UCI) signals having variable payloads from User Equipments (UEs). The UCI transmission uses a first format type if its size is less than or equal to a predetermined values and it uses a second format type if its size is greater than a predetermined value. When the first format type is used the UE multiplexing is through a first method while when the second format type is used the UE multiplexing is through a second method which is different than the first method. The structure of the second format type is the same as the structure used for the transmission of data information by UEs. The UEs can also be grouped and UCI transmission can be triggered through the reception of control signaling addressing a group of UEs and indicating UCI transmission by a sub-group of UEs in the group of UEs. | 11-04-2010 |
20100322174 | METHOD AND APPARATUS FOR A MOBILE SELECTION BASED INITIAL ACCESS SCHEME IN A MULTICARRIER SYSTEM - A method and apparatus for initial access of a mobile device in multi-carrier system. A base station transmits initial access resource information about the entire system band to the mobile device through a specific carrier to which the mobile device tries initial access. The mobile device determines an uplink initial access band by using received initial access resource information. The base station enables initial access through a predefined downlink response band. | 12-23-2010 |
20100329148 | Apparatus and method for adding and deleting relay link in communication system - An apparatus and a method effectively adds and deletes a relay link in a communication system that includes a multiple relay system. The apparatus and method include determining by a relay mode controller whether to add or delete the relay link with consideration of at least one of a movement velocity of User Equipment (UE), a signal intensity of a Node-B and at least one relay station, and a channel state value of the UE. When addition or deletion of the relay link is determined, a message requesting addition of the relay link or a message informing deletion of the relay link is transmitted by a signaling processor to a relay station corresponding to the relay link whose addition or deletion has been determined. | 12-30-2010 |
20110149916 | METHOD AND APPARATUS FOR SCHEDULING UPLINK RATES ADAPTIVELY TO FAST RATE RAMPING IN A PACKET COMMUNICATION SYSTEM - A method and apparatus are provided for transmitting uplink rate assignment information for an uplink data transmission to a User Equipment (UE) by a Node B in a mobile communication system. The uplink rate assignment information to be transmitted for each UE is determined. The uplink rate assignment information is transmitted to the UE. The uplink rate assignment information is attached with a UE ID-specific Cyclic Redundancy Check (CRC) of the UE when directly indicating an uplink rate grant for the UE. | 06-23-2011 |
20110228756 | CQI TRANSMISSION POWER CONTROL METHOD AND APPARATUS FOR WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTI-CELL HSDPA - A CQI transmission power control method is provided for transmitting CQIs of multiple cells is provided for a multi-cell HSDPA system in which multiple cells transmit packet data to a user equipment. A control information transmission method of a user equipment in a wireless communication system supporting multi-cell packet transmission service according to the present invention includes generating control informations indicating channel qualities of different cells; classifying the control informations into two control information groups according to a predetermined rule; compensating the control information groups for securing uniform reception performance at a base station; and transmitting the compensated control information groups to the base station. | 09-22-2011 |
20110228863 | MULTIPLEXING CONTROL AND DATA INFORMATION FROM A USER EQUIPMENT IN A PHYSICAL DATA CHANNEL - Methods and apparatus are described for a User Equipment (UE) to transmit HARQ-ACK information in a Physical Uplink Shared CHannel (PUSCH) in response to a reception of at least one Transport Block (TB) when the UE is configured by a base station with multiple DownLink (DL) Component Carriers (CCs), for selecting a single PUSCH for transmitting of Uplink Control Information (UCI), when the UE has multiple PUSCH transmissions, for improving the reliability of the HARQ-ACK reception when it is encoded using a block code relative to when it is encoded using the repetition code, and for applying transmission diversity to the HARQ-ACK transmission in a PUSCH. | 09-22-2011 |
20110243008 | COMPONENT CARRIER ACTIVATION METHOD AND APPARATUS IN A CELLULAR COMMUNICATION SYSTEM - A method and apparatus for activating a deactivated Component Carrier in a cellular communication system supporting carrier aggregation. The method includes receiving, from a Base Station (BS), UpLink (UL) scheduling information for a UL CC in a deactivated state; determining whether a DownLink (DL) CC associated with the UL CC is activated; and activating the DL CC, when the DL CC is not activated. | 10-06-2011 |
20110249582 | CHANNEL STATE INFORMATION REQUEST/FEEDBACK METHOD AND APPARATUS - A Channel State Information (CSI) request/feedback method and apparatus for a wireless communication system supporting carrier aggregation or bandwidth extension are provided. A base station sets a CSI request field of an Uplink (UL) grant for scheduling UL transmission on a UL Component Carrier (CC) corresponding to a Downlink (DL) CC of which CSI is requested, to a request value. The UL grant is transmitted to a terminal. | 10-13-2011 |
20110292812 | METHOD AND APPARATUS FOR RADIO LINK CONTROL IN CELLULAR RADIO COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION - The present invention relates to a method and apparatus for determining radio link failure between the UE and the eNB in a wireless communication system. Particularly, the present invention provides a method and apparatus for determining radio link failure efficiently in such a way that the UE measures the radio link quality of the anchor carrier, the radio link qualities of the aggregated carriers, and the radio link quality of neighbor cells in order, and determines whether the radio link quality fulfills a predetermined condition. | 12-01-2011 |
20110299500 | MULTIPLEXING CONTROL AND DATA INFORMATION FROM A USER EQUIPMENT IN MIMO TRANSMISSION MODE - A method and apparatus for multiplexing Uplink Control Information (UCI) with data information in a Physical Uplink Shared CHannel (PUSCH) transmitted over multiple spatial layers where aspects of the UCI multiplexing include the determination of the number of coded UCI symbols in each spatial layer when the data information is conveyed using multiple Transport Blocks (TBs), the determination of the number of coded UCI symbols in each spatial layer when the PUSCH conveys a single TB retransmission for a Hybrid Automatic Repeat reQuest (HARQ) process while the initial TB transmission for the same HARQ process was in a PUSCH conveying multiple TBs, and the determination of the modulation scheme for the coded UCI symbols. | 12-08-2011 |
20110319068 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING CSI IN CELLULAR COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION - A Channel Status Information (CSI) transmission method and apparatus of a terminal are provided for use in a wireless communication system. In the wireless communication system supporting carrier aggregation, the terminal transmits the CSIs of component carriers without conflict of their transmission time points, resulting in an improvement of system performance. In a case where the transmission time points are determined to overlap unavoidably, the terminal transmits the CSI as compressed. | 12-29-2011 |
20120033648 | MULTIPLEXING CONTROL AND DATA INFORMATION FROM A USER EQUIPMENT - Methods and apparatus are provided for a User Equipment to transmit acknowledgement information together with data information to a base station during a Transmission Time Interval. A number of nominal resources for the transmission of the first set of AIBs is compared to a number of resources available to the UE for transmission of the acknowledgement information. The first set of AIBs is transmitted if the number of nominal resources is less than or equal to the number of available resources. A second set of AIBs is selected from the first set of AIBs and bundling operations are performed over respective distinct subsets of AIBs in the second set of AIBs to obtain a third set of AIBs if the number of nominal resources is greater than the number of available resources. The third set of AIBs and a fourth set of AIBs are transmitted. | 02-09-2012 |
20120034927 | TRANSMISSIONOF HARQ CONTROL INFORMATION FROM A USER EQUIPMENT FOR DOWNLINK CARRIER AGGREGATION - Methods and apparatus are described for a User Equipment (UE) to transmit acknowledgement information together with data information in a Physical Uplink Shared CHannel (PUSCH) or separate from data information in a Physical Uplink Control CHannel (PUCCH). The HARQ-ACK payload for transmission in a PUSCH and the HARQ-ACK signal transmission power for transmission in a PUCCH are derived based on the existence and design of a Downlink Assignment Index (DAI) Information Element (IE) in the Downlink Control Information (DCI) formats scheduling receptions of data Transport Blocks (TBs) by the UE. | 02-09-2012 |
20120044901 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION IN A MOBILE COMMUNICATION SYSTEM SUPPORTING UPLINK PACKET DATA SERVICE - A method and apparatus for transmitting and receiving downlink control information in a mobile communication system supporting an uplink packet data service are provided. To transmit packet data in an HARQ mobile communication system, a second transceiver receives an RG as rate control information from a first transceiver. The second transceiver sets the allowed maximum data rate of an HARQ process to which the RG is applied to the allowed maximum data rate of an HARQ process previous to the HARQ process, if the RG indicates hold. The second transceiver transmits packet data within the set allowed maximum data rate to the first transceiver. | 02-23-2012 |
20120076090 | METHOD AND APPARATUS FOR THE TRANSMISSION AND RECEPTION OF DOWNLINK CONTROL SIGNALLING IN MOBILE TELECOMMUNICATION SYSTEM - Provided is a method of transmitting control information of a base station in a mobile communication system includes obtaining scheduling information from a terminal; and transmitting at least two control channels through one down link carrier, wherein each control channel corresponds to a different uplink carrier. | 03-29-2012 |
20120127878 | ANTENNA ALLOCATION APPARATUS AND METHOD FOR CELLULAR MOBILE COMMUNICATION SYSTEM - A method and apparatus for selecting and allocating antennas efficiently are provided. The method includes transmitting, to a User Equipment (UE), information indicating a configuration of a plurality of Channel Status Information Reference Signals (CSI-RSs) through UE specific signaling during an initial access attempt with the UE; receiving, from the UE, CSI-RS measurement results indicating configured CSI-RSs; transmitting CSI-RSs corresponding to a set of available distributed ports (D-ports) based on received signal strength information included in results of the CSI-RS measurement; and determining a CSI-RS of a selected D-port set for use in communications based on feedback information received from the UE. | 05-24-2012 |
20120128093 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN MOBILE COMMUNICATION SYSTEM - Methods and apparatus are provided for transmitting/receiving data in consideration of carrier frequency in the mobile communication system using multiple transmission antennas for increasing data rate and system throughput. A number of antennas and a plurality of symbols are determined via an in-phase domain and a quadrature-phase domain. The symbols are mapped according to the number of antennas and the in-phase domain and the quadrature-phase domain. The mapped symbols are transmitted through corresponding antennas. | 05-24-2012 |
20120129566 | UPLINK TRANSMISSION POWER CONTROL METHOD AND APPARATUS FOR A DISTRIBUTED ANTENNA MOBILE COMMUNICATION SYSTEM - An uplink power control method and apparatus of a terminal in a mobile communication system are provided. The method includes receiving, by the terminal, a location parameter corresponding to at least one antenna selected among a plurality of antennas distributed in a service area of a base station, each of the plurality of antennas being connected to the base station; and calculating uplink power based on the location parameter. | 05-24-2012 |
20120147766 | CHANNEL STATUS INFORMATION FEEDBACK METHOD AND APPARATUS FOR A DISTRIBUTED ANTENNA MOBILE COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving channel status information in a mobile communication system including a distributed antenna system. The channel status information feedback method of the present invention includes transmitting, to a base station, received signal strengths of reference signals transmitted through at least one of antennas distributed in a service area of the base station and transmitting, to a base station, channel status information corresponding to at least one antenna selected by the base station. | 06-14-2012 |
20120195278 | METHOD AND APPARATUS FOR SCHEDULING ASSIGNMENT OF UPLINK PACKET TRANSMISSION IN MOBILE TELECOMMUNICATION SYSTEM - Methods and apparatus are provided for communication between a User Equipment (UE) and a Node B in a communication system. The UE generates a Media Access Control-Protocol Data Unit (MAC-PDU) including scheduling information having information representing an amount of packet data to be transmitted. The MAC-PDU including the scheduling information is transmitted to the Node B. The information representing the amount of packet data exists per priority queue. | 08-02-2012 |
20120201327 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING THE HYBRID-ARQ ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - An apparatus and method are provided for mapping control information to a multiple antenna array to transmit the control information in a mobile communication system. The method includes spreading the control information with an orthogonal sequence according to a spreading factor; and mapping the spread control information to the multiple antenna array based on a repetition index and a Physical Hybrid Automatic Repeat reQuest (HARQ) Indicator CHannel (PHICH) group index. The spread control information is mapped to the multiple antenna array in an alternating pattern in accordance with the repetition index. | 08-09-2012 |
20120213170 | MOBILE COMMUNICATION SYSTEM AND CHANNEL TRANSMISSION/RECEPTION METHOD THEREOF - A method and an apparatus for transmitting Hybrid Automatic Repeat reQuest (HARQ) Acknowledgement/Negative Acknowledgement (ACK/NACK) are provided. The HARQ ACK/NACK transmission method includes receiving a Physical Downlink Shared Channel (PDSCH) in a subframe of a first cell, identifying an ACK subframe for transmitting HARQ ACK/NACK corresponding to the PDSCH, and transmitting the HARQ ACK/NACK in the identified ACK subframe of a second cell. | 08-23-2012 |
20120257554 | METHOD AND APPARATUS FOR DEFINING TRANSCEIVING TIMING OF A PHYSICAL CHANNEL IN A TDD COMMUNICATION SYSTEM WHICH SUPPORTS CROSS-CARRIER SCHEDULING - The present invention relates to a method for defining, in a TDD wireless communication system in which broadband is configured by means of carrier aggregation, transceiving timing for a data channel and a control channel when cross-carrier scheduling is implemented. | 10-11-2012 |
20120263143 | METHOD AND APPARATUS FOR ALLOCATING RESOURCES OF A CONTROL CHANNEL IN A MOBILE COMMUNICATION SYSTEM USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING - A method is provided for allocating resources of a control channel in a mobile communication system using Orthogonal Frequency Division Multiplexing (OFDM). The method includes, when a time index and a frequency index of available Resource Elements (REs) are defined as | 10-18-2012 |
20120269160 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION TO RANDOMIZE INTER-CELL INTERFERENCE IN A MOBILE COMMUNICATION SYSTEM - Methods and apparatus are provided for transmitting control information in an SC-FDMA system. A UE generates a random cyclic shift value based on an SC-FDMA symbol index and a slot index. The UE cyclically shifts a sequence by the random cyclic shift value. The UE multiplies a control channel signal, including the control information, by the cyclically shifted sequence on an SC-FDMA symbol basis. The UE transmits the multiplied control channel signal in an SC-FDMA symbol to a Node B. | 10-25-2012 |
20120273065 | FLUID FLOW CONTROL DEVICE - Disclosed therein is a fluid flow control device having a cylinder assembly, which includes cylinders overlapped with each other and fluid pathways for controlling flow rate and velocity of fluid, comprising: a first cylinder having a plurality of first fluid pathways of an elongated form horizontally permeating the cylinder from a central axis; a second cylinder disposed on the outer circumference of the first cylinder; and a third cylinder disposed on an outer circumference of the second cylinder. | 11-01-2012 |
20120307819 | METHOD AND APPARATUS FOR INTERLEAVING DATA IN A MOBILE COMMUNICATION SYSTEM - An interleaving method to which time-first-mapping is applied in a mobile communication system is provided. The interleaving method includes writing coded bits into an interleaver on a row-by-row basis, and reading the coded bits written in the interleaver on a column-by-column basis, wherein the coded bits are written by groups having a size according to a modulation order | 12-06-2012 |
20130007497 | APPARATUS FOR BLOCKING STANDBY POWER OF COMPUTER PERIPHERAL DEVICES - The present invention relates to an apparatus for blocking standby power of computer peripheral devices, comprising: a synchronization signal sensing control unit which senses the existence of horizontal and vertical synchronization signals provided to a monitor from a computer body, and outputs a switching control signal according to the sensed result; and a power switching unit which is provided with external power and situated on a power supply path for supplying power to the computer peripheral devices, and has a structure adapted for conducting or blocking the corresponding path according to the switching control signal. | 01-03-2013 |
20130039299 | EXTENSION OF PHYSICAL DOWNLINK CONTROL CHANNELS IN A COMMUNICATION SYSTEM - Methods and apparatuses are described for a User Equipment (UE) to receive enhanced Control CHannels (eCCHs), including enhanced Physical Downlink Control CHannels (ePDCCHs), transmitted in a set of Resource Blocks (RBs) over a Transmission Time Interval (TTI). A method includes transmitting a first control signal to a first UE over a first number of Resource Elements (Res) in a subset of the RBs and over a first number of the transmission symbols in the TTI; transmitting a second control signal to a second UE over a second number of the REs in the subset of the RBs and over a second number of the transmission symbols in the TTI; and transmitting a reference signal of the first type over a third number of the REs in the subset of the RBs and over a third number of the transmission symbols in the TTI. | 02-14-2013 |
20130083751 | TRANSMISSION POWER CONTROL FOR A SOUNDING REFERENCE SIGNAL - Method and apparatus for a User Equipment (UE) determining a resource for a transmission of a control signal in response to a detected control channel including Control Channel Elements (CCEs), where transmission of the control signal is with a first sequence or with a second sequence, if a first resource or a second resource is used, respectively. The first resource is determined from the CCE index while the second resource is determined from a group of consecutive CCE indexes. The UE is also signaled a bit-map associating the subframe of the control channel detection with the use of a first resource or of a second resource. | 04-04-2013 |
20130083764 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING THE HYBRID-ARQ ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - An apparatus and method are provided for transmitting a symbol group in a mobile communication system. The method includes generating a symbol group to which an orthogonal sequence is applied; mapping the generated symbol group to an Orthogonal Frequency Division Multiple (OFDM) symbol based on a symbol group index and a Physical HARQ Indicator Channel (PHICH) group index; and transmitting the mapped symbol group. The generated symbol group is mapped to the OFDM symbol in an alternating pattern in accordance with the symbol group index. | 04-04-2013 |
20130089067 | METHOD AND APPARATUS FOR OPERATING MULTI-BAND AND MULTI-CELL - Disclosed are a method and an apparatus for operating multi-band and multi-cell. An Enhanced Node B (eNB) transmits a synchronization channel and a broadcasting channel for narrow-band user equipments (UEs) through a first band narrower than a system band, the first band being located in a center band of the system band, and transmits a control channel for scheduling a data channel for a first narrow-band UE which is one of the narrow-band UEs through a second band equal to or wider than the first band, the second band not overlapping the first band within the system band. The first band is designed to be matched to a band where the synchronization channel and the broadcasting channel of a host cell using an entire system band are transmitted. | 04-11-2013 |
20130094442 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM - A User Equipment (UE) in a wireless communication system using a Coordinated Multi-Point transmission/reception (CoMP) scheme receives Downlink Control Information (DCI) including CoMP control information, determines a starting position of a data channel on wireless resources, based on starting position information of a data channel included in the CoMP control information and used in each of a plurality of cells, and receives data from the plurality of cells starting from the determined starting position. | 04-18-2013 |
20130100904 | METHOD AND APPARATUS FOR ALLOCATING AND ACQUIRING ACK/NACK RESOURCES IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus are provided for receiving ACK/NACK information by a base station. The method includes transmitting data and control information to at least one UE, the control information being transmitted through a downlink control channel including at least one CCE; checking a resource for reception of an ACK/NACK mapped to the at least one CCE based on a mapping rule between CCEs and resources for reception of the ACK/NACK, the resource for reception of the ACK/NACK identified by a cyclic shift index, an orthogonal sequence index, and a resource block index; and receiving the ACK/NACK information for the transmitted data using the checked resource. | 04-25-2013 |
20130107832 | FEEDBACK METHOD AND APPARATUS FOR COOPERATIVE MULTI-POINT COMMUNICATION IN COMMUNICATION SYSTEM | 05-02-2013 |
20130114487 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION IN A MOBILE COMMUNICATION SYSTEM SUPPORTING UPLINK PACKET DATA SERVICE - A method and apparatus for transmitting and receiving downlink control information in a mobile communication system supporting an uplink packet data service are provided. To transmit packet data in an HARQ mobile communication system, a second transceiver receives an RG as rate control information from a first transceiver. The second transceiver sets the allowed maximum data rate of an HARQ process to which the RG is applied to the allowed maximum data rate of an HARQ process previous to the HARQ process, if the RG indicates hold. The second transceiver transmits packet data within the set allowed maximum data rate to the first transceiver. | 05-09-2013 |
20130121249 | Method and apparatus for transmitting system information in a mobile communication system - A method and apparatus are provided for transmitting system information in a mobile communication system. The method includes configuring system information including first antenna configuration information and second antenna configuration information, and broadcasting the system information. The first antenna configuration information includes information about a number of antennas of a base station. | 05-16-2013 |
20130155974 | COMMUNICATION SUPPORT FOR LOW CAPABILITY DEVICES - Methods and apparatuses for transmitting and receiving signaling, by a User Equipment (UE) with reduced processing capabilities, to conserve power are provided. A method for transmitting from a network a Physical Downlink Shared CHannel (PDSCH) to a first User Equipment (UE) from a first class of UEs or to a second UE from a second class of UEs, includes transmitting a PDSCH to the first UE using a first bandwidth unit; and transmitting a PDSCH to the second UE using a second bandwidth unit, wherein the second bandwidth unit is smaller than the first bandwidth unit. | 06-20-2013 |
20130177008 | Method for Configuring Gain Factors for Uplink Service in Radio Telecommunication System - A method for configuring gain factors in a WCDMA telecommunication system is provided in which the gain factor for defining power required for normal reception of uplink data in an environment supporting an uplink service over an E-DCH can be configured using minimal signaling information. First gain factors for first TFs corresponding to a part of a TF set including a plurality of TFs available for an uplink service are received. One of the first TFs is determined as a reference TF for a second TF other than the first TFs in the TF set. Then, a second gain factor for the second TF is calculated using the first gain factor for the determined reference TF. The second gain factor is used for transmitting or receiving uplink data. | 07-11-2013 |
20130195041 | METHOD AND APPARATUS FOR SCHEDULING COMMUNICATION FOR LOW CAPABILITY DEVICES - Methods and apparatus are described for a User Equipment (UE) with reduced processing capabilities (e.g., Machine Type Communication (MTC) UE) to transmit and receive signaling are provided. The Downlink Control Information (DCI) formats scheduling a transmission of a Physical Uplink Shared CHannel (PUSCH) or a reception of a Physical Downlink Shared CHannel (PDSCH) are designed and have a smaller size than respective DCI formats for conventional UEs. DCI formats scheduling PUSCHs to or PDSCHs for a group of MTC UEs are also designed and can have a same size as DCI formats scheduling PUSCH or PDSCH for an individual MTC UE. | 08-01-2013 |
20130301492 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING FRAME CONFIGURATION INFORMATION IN TDD WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting Time Division Duplexing (TDD) configuration information by an evolved Node B (eNB) in a TDD wireless communication system are provided. The method includes determining a changed TDD configuration indicating a transmission direction of a plurality of sub-frames constituting a frame; generating a system information element including dynamic TDD configuration information indicating the changed TDD configuration; transmitting a system information block including the dynamic TDD configuration information; and sending a Media Access Control (MAC) message including information indicating whether a change in TDD configuration is activated. | 11-14-2013 |
20130336300 | MOBILE COMMUNICATION SYSTEM AND DATA TRANSMISSION METHOD THEREOF - A data transmission method and apparatus is provided for transmitting UL grant or ACK/NACK at flexible subframes in a Time Division Duplex (TDD) system. The data transmission method of a base station according to the present invention includes configuring subframes irrelevant to Hybrid Automatic Repeat reQuest (HARQ) process as flexible subframes; scheduling uplink transmission at the flexible subframes with uplink grant; receiving uplink data transmitted by a terminal at the flexible subframes as scheduled; and transmitting, when decoding the uplink data fails, HARQ acknowledgement/negative acknowledgement (ACK/NACK) or uplink grant to request retransmission of the uplink data. The data transmission method of the present invention is capable of utilizing flexible subframes for uplink transmission without influencing the uplink HARQ process associated with the downlink subframes configured as flexible subframes. | 12-19-2013 |
20130346827 | METHOD AND APPARATUS FOR INTERLEAVING DATA IN A MOBILE COMMUNICATION SYSTEM - An interleaving method in a mobile communication system is provided. The interleaving method includes encoding a plurality of bits to output encoded bits in a sequence, interleaving the encoded bits based on a modulation order to generate interleaved encoded bits comprising consecutive bits having a size based on the modulation order, the consecutive bits corresponding to consecutive bits of the encoded bits, scrambling the interleaved encoded bits with a scrambling code to generate scrambled bits, and modulating the scrambled bits based on the modulation order to output at least one symbol. | 12-26-2013 |
20140016601 | METHOD AND APPARATUS FOR SCHEDULING ASSIGNMENT OF UPLINK PACKET TRANSMISSION IN MOBILE TELECOMMUNICATION SYSTEM - A method is provided for communication between a UE and a Node B in a communication system. The UE generates a Media Access Control-Protocol Data Unit (MAC-PDU) including a first field related to at least one queue ID and a second field related to at least one amount of data to be transmitted, where the data to be transmitted has its priority. The MAC-PDU including the first and second fields is transmitted to the Node B. Grant information is received from the Node B. Data is transmitted to the Node B based on the grant information and the priority. One amount of data in the second field corresponds to one queue ID in the first field. | 01-16-2014 |
20140064242 | MULTIPLEXING CONTROL AND DATA INFORMATION FROM A USER EQUIPMENT IN MIMO TRANSMISSION MODE - A method and apparatus are provided for multiplexing Uplink Control Information (UCI) with data information in a Physical Uplink Shared CHannel (PUSCH) transmitted over multiple spatial layers where aspects of the UCI multiplexing include the determination of the number of coded UCI symbols in each spatial layer when the data information is conveyed using multiple Transport Blocks (TBs), the determination of the number of coded UCI symbols in each spatial layer when the PUSCH conveys a single TB retransmission for a Hybrid Automatic Repeat reQuest (HARQ) process while the initial TB transmission for the same HARQ process was in a PUSCH conveying multiple TBs, and the determination of the modulation scheme for the coded UCI symbols. | 03-06-2014 |
20140071928 | MULTIPLEXING LARGE PAYLOADS OF CONTROL INFORMATION FROM USER EQUIPMENTS - An apparatus and method for transmitting Uplink Control Information (UCI) over a Physical Uplink Control CHannel (PUCCH) in a communication system. The method includes acquiring information for configuration of a first PUCCH format and a second PUCCH format; generating UCI to be transmitted; selecting one of the first PUCCH format and the second PUCCH format for transmitting the UCI; encoding the generated UCI; performing an Inverse Fourier Transform (IFT) operation on the encoded UCI; and transmitting the IFT performed UCI using the selected PUCCH format. The second PUCCH format is selected, if the transmitting of the UCI is related to multiple downlink carriers. | 03-13-2014 |
20140086113 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL IN DYNAMIC TIME DIVISION DUPLEX SYSTEM - A method and system for transmitting and receiving a control channel in a dynamic Time Division Duplex (TDD) system. Upon receiving a control signal DCI for a first Hybrid Automatic Retransmission Request (HARQ) process from a Node B, a User Equipment (UE) determines whether TDD configuration is changed in a radio frame to which the DCI is to be applied. If the TDD configuration is changed, the UE determines from the DCI whether retransmission for the first HARQ process is required. If the retransmission required, the UE interprets some bits of a Modulation and Coding Scheme (MCS) field in the DCI as a target HARQ process index for the first HARQ process. As a result, the most is made of available UL data channel resources, contributing to an increase in the capacity of the dynamic TDD system and a reduction in packet delays of the UE. | 03-27-2014 |
20140086127 | METHOD AND APPARATUS FOR USING A PLURALITY OF CELLS IN COMMUNICATION SYSTEM - Methods and apparatus for using a plurality of cells by an evolved NodeB (eNB) in a communication system are provided. A first eNB, which manages a first cell and is providing a communication service to a User Equipment (UE) located in the first cell, determines to provide the communication service to the UE together with a second cell of a second eNB, which neighbors the UE. A cell addition request message, making a request for aggregation of the first cell and the second cell, is transmitted to the second eNB to provide the communication service. When a cell addition response message, accepting the request for aggregation of the first cell and the second cell, is received from the second eNB, a cell activation request message, making a request for activation of the second cell, is transmitted to the second eNB. | 03-27-2014 |
20140092788 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN MOBILE COMMUNICATION SYSTEM - A data transceiving method of a terminal in a mobile communication system is provided. The data transceiving method includes receiving a Time Division Duplex (TDD) configuration modification message including TDD configuration modification time information from a base station, modifying a TDD configuration based on the TDD configuration modification time information, transmitting, to the base station, at least one of a data channel and a response channel by taking into consideration a transmission period between the data channel and the response channel. and the transmission period is determined for mapping first subframes for transmitting at least one of a data channel and a response channel before the TDD configuration modification, onto second subframes for transmitting at least one of a data channel and a response channel after the TDD configuration modification. | 04-03-2014 |
20140105049 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION OF DOWNLINK CHANNEL IN MOBILE COMMUNICATION SYSTEM - A method for sending a Channel State Information (CSI) report for a Downlink (DL) channel by a User Equipment (UE) in a mobile communication system is provided. The method includes obtaining, from an evolved Node B (eNB), CSI report setting information including information about a transmission cycle and a transmission time for a CSI report, and Discontinuous Reception (DRX) setting information including information about an active time period in which signal transmission/reception is available in a DRX mode, determining whether the UE operates in the DRX mode, and if the UE is determined to operate in the DRX mode, adjusting the transmission time taking into account the CSI report setting information and the active time period, and sending the CSI report at the adjusted transmission time. | 04-17-2014 |
20140177572 | TRANSMITTING UPLINK CONTROL INFORMATION OVER A DATA CHANNEL OR OVER A CONTROL CHANNEL - Methods and apparatus are described for User Equipment (UE) to concurrently transmit Uplink Control Information (UCI) and data information to a Node B. The Node B can configure the UE to transmit UCI together with data information in a Physical Uplink Shared CHannel (PUSCH) or separate from data information in a Physical Uplink Control CHannel (PUCCH). The UE may also determine whether to transmit UCI together with data information in the PUSCH or separate from data information in the PUCCH based on criteria involving a ratio of PUSCH resources for UCI transmission over the total PUSCH resources, a Modulation and Coding Scheme (MCS) for the data information, an absolute power difference between PUCCH and PUSCH transmissions, whether the PUSCH transmission uses frequency hopping, and/or whether spatial multiplexing is used for the data transmission. | 06-26-2014 |
20140233501 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION TO RANDOMIZE INTER-CELL INTERFERENCE IN A MOBILE COMMUNICATION SYSTEM - Methods and apparatuses are provided for transmitting control information in an SC-FDMA system. A UE determines cyclic shift values for SC-FDMA symbols. The UE acquires cyclic shift sequences by the cyclic shift values. The UE applies the cyclic shift sequences to the control information on an SC-FDMA symbol basis. The control information applied with the cyclic shift sequences in the SC-FDMA symbols is transmitted to a Node B | 08-21-2014 |
20140247800 | METHOD AND DEVICE FOR MONITORING FREQUENCY DOMAIN-BASED WIRELESS LINK IN WIRELESS COMMUNICATION SYSTEM - The present disclosure relates to a technique for radio link monitoring in a wireless communication system, and to operation procedures of the base station and user equipment and a method for radio link quality evaluation on the basis of the technique. In the method, the user equipment divides the downlink channel bandwidth into multiple frequency ranges, measures channel states for each frequency range, and evaluates the radio link quality based on channel state measurement results. Thereafter, the user equipment sends frequency range quality information to the base station, which may then utilize the same for downlink resource allocation. Hence, it is possible to solve the problem of the existing scheme wherein the user equipment enters the physical layer problem detection state or the radio link failure state although a frequency range usable for service provisioning is present within the downlink channel bandwidth. | 09-04-2014 |
20140286176 | APPARATUS AND METHOD FOR RADIO LINK MONITORING IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method for radio link monitoring in a wireless communication system are provided, in which a transmission point communicating with a network where a Base Station (BS) and at least one Remote Radio Head (RRH) coexist within a cell receives Reference Signal Configuration Information (RSCI) from the network to which the transmission point belongs, receives RSs of at least one RS type indicated by the received RSCI from the BS and the at least one RRH that coexist within the cell, and performs radio link monitoring using the received RSs of the at least one RS type. | 09-25-2014 |
20140293932 | MULTIPLEXING CONTROL AND DATA INFORMATION FROM A USER EQUIPMENT IN A PHYSICAL DATA CHANNEL - Methods and apparatus are described for transmitting and receiving HARQ-ACK information in a Physical Uplink Shared CHannel (PUSCH). A method of receiving includes configuring a plurality of cells for a user equipment (UE), where each of the plurality of cells is associated with one transmission mode; receiving, from the UE, via a physical uplink shared channel (PUSCH), encoded concatenated HARQ-ACK bits for the plurality of cells; and decoding encoded concatenated HARQ-ACK bits. HARQ-ACK bits for the plurality of cells are concatenated based on an order of a cell index for each of the plurality of cells, and the concatenated HARQ-ACK bits include 2 HARQ-ACK bits for a cell associated with a transmission mode supporting up to 2 transport blocks and 1 HARQ-ACK bit for a cell associated with a transmission mode supporting up to 1 transport block | 10-02-2014 |
20140307597 | METHOD AND APPARATUS FOR CONTROLLING TRANSCEIVING OF PHYSICAL CHANNELS IN TIME DIVISION DUPLEX COMMUNICATION SYSTEM - Disclosed are a method and an apparatus for controlling the transceiving of physical channels in a time division duplex (TDD) communication system. The method comprises: a step of determining whether a point of time of HARQ ACK/NACK transmission in component carrier #1 and a point of time of the transmission of another signal in component carrier #2 coupled with the component carrier #1 are overlapped with each other; and a step of preferentially transmitting or receiving a HARQ ACK/NACK signal when the points of time of transmission are overlapped with each other. Thus, the method and the apparatus of the present invention may prevent transceiving error or transmission delay of data or a control channel. | 10-16-2014 |
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 |
20140341089 | Interference measurement method and apparatus for controlling inter-cell interference in wireless communication system - The present disclosure relates to an interference measurement method and apparatus for controlling inter-cell interference in a Time Division Duplex (TDD) radio communication system and, in particular, to a technology for a base station to configure a radio frame capable of controlling interference with adjacent base stations and to measure interference based on the radio frame configured as such. In an embodiment of the present disclosure, the first base station sends the second base station the first radio frame configuration information and the second radio frame configuration information including a subset of uplink subframes of the first radio frame configuration. The second base station configures the intersection of uplink subframes of the first and second radio frame configurations into the first interference measurement subframe set and difference of the sets of the subframes of the respective first and second radio frame configurations into the second interference measurement subframe set. The second base station measures uplink interference signals of the neighbor cell during the first interference measurement subframe set and the downlink interference signal of the neighbor cell during the second interference measurement set and transmits the measurement result to the first base station. Through this method, the base station is capable of predicting uplink coverage of the neighbor cell during the first interference measurement subframe set and the downlink coverage of the neighbor cell during the second interference measurement subframe set for controlling inter-cell interference. | 11-20-2014 |
20150016291 | METHOD AND APPARATUS FOR MEASURING MU-MIMO INTERFERENCE IN MOBILE COMMUNICATION SYSTEM - One or more embodiments discloses a method of measuring interference by an evolved NodeB and an eNB device. The method includes configuring one or more first type interference measurement resources in a User Equipment (UE). The method also includes transmitting signals for a plurality of UEs within a cell range of the eNB to the one or more first type interference measurement resources. The method also includes receiving channel status information generated in accordance with a signal received in the one or more first type interference measurement resources. | 01-15-2015 |
20150023231 | METHOD AND APPARATUS FOR TRANSCEIVING CHANNEL RELATED TO TERMINAL THAT SUPPORTS HALF DUPLEX TRANSMISSION IN MOBILE COMMUNICATION SYSTEM - Disclosed are a method and an apparatus for transceiving a channel related to a terminal that supports half duplex transmission in a mobile communication system. The terminal receives scheduling information on multi-carriers having different TDD configurations from a base station, determines whether to receive a downlink channel for a plurality of different subframes of each multi-carrier including at least one special subframe, and transceives a channel to/from the base station depending on whether the downlink channel is received or not. | 01-22-2015 |
20150023397 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING THE HYBRID-ARQ ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM - An apparatus and method are provided for transmitting a symbol group in a mobile communication system. The method includes generating the symbol group to which an orthogonal sequence is applied; mapping the generated symbol group to an orthogonal frequency division multiple (OFDM) symbol and a multiple antenna array based on a symbol group index and a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) group index; and transmitting the mapped symbol group. The generated symbol group is mapped to the OFDM symbol and the multiple antenna array in an alternating pattern in accordance with the symbol group index. | 01-22-2015 |
20150036643 | CQI TRANSMISSION POWER CONTROL METHOD AND APPARATUS FOR WIRELESS COMMUNICATION SYSTEM SUPORTING MULTI-CELL HSDPA - A method and apparatus are provided for transmitting and receiving control information in a wireless communication system supporting multi-cell transmission. A method includes receiving a first pilot signal from a first cell and a second pilot signal from a second cell; generating first control information indicating channel quality for the first cell and second control information indicating channel quality for the second cell, based on the first pilot signal and the second pilot signal, respectively; separately encoding the first control information and the second control information; separately power controlling the encoded first control information and the encoded second control information; transmitting, on the first cell, the power controlled, encoded first control information on a first control channel; and transmitting, on the first cell, the power controlled, encoded second control information on a second control channel. | 02-05-2015 |
20150043673 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING FEEDBACK INFORMATION IN MOBILE COMMUNICATION SYSTEM BASED ON 2 DIMENSIONAL MASSIVE MIMO - A feedback information transmission/reception method for use in a mobile communication system is provided. The feedback information transmission method includes receiving configuration information on at least two reference signals and feedback configuration information for use in generating feedback information based on the at least two reference signals from a base station, receiving the at least two reference signals from the base station, measuring the at least two reference signals received, generating the feedback information based on the measurement result according to the feedback configuration information, and transmitting the feedback information to the base station. | 02-12-2015 |
20150049622 | METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL CHANNELS AND UPLINK DATA CHANNELS IN COMP SYSTEM - The present invention relates to a method for transmitting an uplink channel in a wireless communication system. The method for transmitting an uplink channel of a terminal according to one embodiment of the present invention may comprise the steps of: receiving a downlink control message; extracting the starting point of a dynamic physical uplink control channel (PUCCH) resource region from the downlink control message; and transmitting an uplink channel according to the starting point of the extracted dynamic PUCCH resource region. An embodiment of the invention exhibits effects in reducing the signaling overhead, and preventing the terminal from unnecessarily consuming power, when transmitting the uplink channel in a CoMP system. | 02-19-2015 |
20150049725 | METHOD AND APPARATUS FOR THE TRANSMISSION AND RECEPTION OF DOWNLINK CONTROL SIGNALLING IN MOBILE TELECOMMUNICATION SYSTEM - Provided is a method of transmitting control information of a base station in a mobile communication system includes obtaining scheduling information from a terminal; and transmitting at least two control channels through one down link carrier, wherein each control channel corresponds to a different uplink carrier. | 02-19-2015 |