Lg Electronics Inc.

Yonsei University

Illsoo Sohn

Kijun Kim

Jonghyun Park

Hanbyul Seo

Hyungtae Kim

Eunsun Kim

Joonkui Ahn

Byounghoon Kim

Dongyoun Seo

Suckchel Yang

Hyangsun You

Yunjung Yi

Daesung Hwang

Hakseong Kim

Bonghoe Kim

Suhwook Kim

Minseok Kim

Jong-Moon Chung

SeungMin Lee

Sungjin Shin

Taeyoung Ha

The present invention relates to a method and apparatus for transmitting channel state information (CSI) on a terminal having a plurality of cells allocated in a wireless communication system. The method includes the steps of: setting a plurality of cells as a plurality of groups, at least one of the groups including a plurality of cells; determining a priority for each of the groups; and transmitting multiple pieces of CSI for a top priority group having a highest priority from among the groups on the basis of the priority, wherein, when the top priority group includes two or more cells, the CSI includes each piece of CSI on each of the two or more cells.

Method and apparatus for transmitting channel state information in wireless communication system

A method is provided for receiving a user equipment (UE) specific reference signal based-downlink data channel by a UE in a wireless communication system. The UE receives, from a network, a downlink control channel including either first scheduling information or second scheduling information, and receives the UE-specific reference signal based-downlink data channel from the network based on the downlink control channel. When the downlink control channel includes the first scheduling information, antenna ports of a certain reference signal which can be assumed to be quasi co-located with antenna ports of a UE-specific reference signal is configured by an indicator indicating one of two or more parameters configured by a higher layer. When the downlink control channel includes the second scheduling information, the antenna ports of a certain reference signal is configured by a parameter of a minimum index among the two or more parameters.

Method for receiving downlink data channels in multicell-based wireless communication systems and apparatus for same

A method and a user equipment (UE) for receiving, and a method and a base station (BS) for transmitting a UE specific reference signal based-downlink data channel in a wireless communication system are discussed. The method for receiving a UE specific reference signal based-downlink data channel according to an embodiment includes receiving a downlink control channel from a network; and receiving the UE-specific reference signal based-downlink data channel from the network based on the downlink control channel. The downlink control channel includes an indicator indicating one of two or more parameters configured by a higher layer. The two or more parameters indicate antenna ports of a certain reference signal which is assumed to be quasi co-located with antenna ports of a UE-specific reference signal.

A method for channel measurement based on a channel state information (CSI)-reference signal (RS) in a wireless communication system including receiving, by a terminal, CSI-RS resource configuration information through higher layer signaling and receiving, by the terminal, the CSI-RS according to the CSI-RS resource configuration information; wherein the CSI-RS resource configuration information includes information on one or more cell specific-RS (CRS) antenna ports assumed to be quasi-co-located with one or more antenna ports used to transmit the CSI-RS, and deriving, by the terminal, CSI based on the CSI-RS using the information on the one or more CRS antenna ports.

Method for reporting channel state information, method for supporting same, and apparatus for said methods

One embodiment of the present invention relates to a method for a terminal carrying out a measurement report in a wireless communication system, and more particularly, to a method for carrying out a measurement report comprising the steps of: receiving a plurality of CSI-RSs which are included in a first set and/or a second set; determining a CSI-RS that is determined and/or a measurement report on the CSI-RS which is included in the second set, wherein the triggering condition is to be larger than that resulting from applying a predetermined offset to a reception quality value of the specific CSI-RS from the second set.

Method and apparatus for carrying out measurement report in wireless communication system

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and apparatus for a terminal to report channel state information in a wireless communication system, the method comprising: a step of transmitting first channel state information according to a first channel state information (CSI) process for reporting the first channel state information periodically for every first period; a step of transmitting second channel state information according to a second CSI process for reporting the second channel state information periodically for every second period; and a step of dropping the transmission of either the first channel state information or the second channel state information on the basis of the CSI process index of each of the first and second CSI processes in the event the first channel state information transmission timing and the second channel state information transmission timing conflict.

Method for reporting channel state information in wireless communication system, and apparatus therefor

The present invention relates to a method of setting an operating channel for a second station STA by a first STA in a white space according to an embodiment of the present invention may include: obtaining information on available TV channels from a geographical database GDB; and transmitting, to the second STA, setting information on the operating channel determined based on the information on the available TV channel. If the minimum channel bandwidth supported by the operating channel is W MHz, the operating channel may be defined as one or more of a) a width of one W MHz channel, b) a width of two contiguous W MHz channels, c) a width of four contiguous W MHz channels, d) a width of two non-contiguous W MHz channels, or e) a channel width consisting of two non-contiguous frequency parts, each of which includes two contiguous W MHz channels.

Method and device for setting operating channel in white space

The present invention provides a method and a device for transmitting or receiving channel state information (CSI). According to the present invention, when a user equipment can be set with one or more CSI processes per serving cell, a CSI request field included in downlink control information for a specific serving cell indicates at least whether a non-periodic CSI report triggered by the CSI request field is triggered for a set of CSI process(es) set by a higher layer from among the CSI process(es) for the one serving cell.

Method and user equipment for transmitting channel state information and method and base station for receiving channel state information

According to one embodiment of the present invention, the method for receiving a channel state information (CSI)-reference signal (RS) from a wireless communication system by a user device comprises the steps of: receiving resource configuration information on the CSI-RS; and receiving the CSI-RS on the basis of the resource configuration information on the CIS-RS, wherein the resource configuration information on the CSI-RS includes information on a cell specific-RS (CRS) related to the CSI-RS, and the user device can assume that an antenna port related to information on the CRS and an antenna port used for transmitting CSI-RS corresponding to the resource configuration information on the CSI-RS are quasi co-located.

One embodiment of the present invention relates to a method for a terminal to report channel state information in a wireless communication system, comprising the steps of: calculating one or more pieces of channel quality information from a signal measurement resource configuration and a plurality of interference measurement resource configurations associated with the signal measurement resource configuration; and transmitting a channel state report including the calculated channel quality information.

Method and apparatus for reporting channel state information in wireless communication system

A method and apparatus for transmitting a measurement report in a wireless communication system are disclosed. The method for transmitting a measurement report at a UE in the wireless communication system includes measuring received strengths and reception frequencies of first and second signals, and transmitting a measurement report including a frequency offset between the first and second signals, if the received strength of the second signal is equal to or larger than a predetermined threshold. The frequency offset is used to support cooperative transmission of transmission points transmitting the first and second signals.

Method and apparatus for transmitting measurement report in a wireless communication system

The present invention relates to a method by which a terminal receives a downlink data channel in a wireless communication system. In detail, the method includes the steps of receiving from a network information on one or more settings defining large scale properties of a terminal-specific reference signal through a higher layer; detecting from the network one of either the first scheduling information or the second scheduling information on a downlink data channel based on a terminal-specific reference signal; and receiving the downlink data channel based on the terminal-specific reference signal on the basis of the detected scheduling information, wherein the first scheduling information includes an indicator indicating one or more of the settings, and the large scale properties of the terminal-specific reference signal are defined according to the setting indicated by the indicator during the detection of the first scheduling information, and a preset setting from among the one or more settings set during the detection of the second scheduling information.

One embodiment of the present invention relates to a method for transmitting a signal by a first node in a wireless communication system, including the steps of a first node setting a connection for a reserved transmission and transmitting a signal to a first reception node in the time interval reserved as the connection setting, wherein, in the time interval, a signal transmission is allowed by a second node which is not included in the neighbor nodes of the first reception node.

Method for transmitting and receiving a signal in a reserved time interval with CSMA/CA scheme in a wireless communication system

Disclosed is a method for transmitting channel status information at a user equipment in a wireless communication system, which more particularly comprises the following steps: receiving a reference signal from a base station; generating at least one channel status information based on the reference signal; mapping the at least one channel status information to available subframes, based on a priority of the at least one channel status information; and transmitting the at least one channel status information to the base station using the available subframes, wherein, if an uplink transmission using a first available subframe of the available subframes is blocked and a first channel status information that is mapped to the first available subframe has priority over a second channel status information that is mapped to a second available subframe, which is a next available subframe of the first available subframe, the first channel status information is shifted to be mapped to the second available subframe.

Method for reporting channel state information requiring sequential transmission in wireless communication system and apparatus for same

A method for feeding back Channel State Information (CSI) using a common subband at a user equipment in a wireless communication system is disclosed. The method includes transmitting first CSI to at least one base station at a first transmission time point according to a first CSI feedback configuration, and transmitting second CSI to the at least one base station at a second transmission time point according to a second CSI feedback configuration, wherein the second CSI is generated based on the common subband when the second transmission time point is within a prescribed SubFrame Threshold (SFT) from the first transmission time point.

Growing community of inventors

Anyang-si, South Korea

Illsoo Sohn