Pantech Co., Ltd.

Pantech Corporation

Apple Inc.

Goldpeak Innovations Inc

Other

Kibum Kwon

Myungcheul Jung

Sungjun Yoon

Jae Hyun Ahn

Sungjin Suh

Kitae Kim

Donghyun Park

Dong Hyun Park

Eun Jung Ko

Sungkwon Hong

Kyoungmin Park

Sung-jin Suh

Uplink synchronization establishment in a base station which operates a plurality of component carriers according to one embodiment of the present description, is performed in that the base station is connected to a user equipment, sets component carrier aggregation information, generates an uplink timing groups in the set component carrier aggregation, and transmits information on the thus-generated uplink timing groups to the user equipment.

Apparatus and method for establishing uplink synchronization in a wireless communication system

A method for allocating a resource for response information transmission and transmitting according to transmission conditions in a wireless communication system according to the present invention comprises the steps of: setting a specific field value of a control channel depending on the allocation method by determining a transmission method or transmission quantity of data to be transmitted to a user's terminal from a data channel, a method of generating response information of the data according to the transmission quantity or transmission method, and an allocation method for indicating the response information resource; transmitting the data channel including the transmitting data and the control channel to the user's terminal; confirming the response information, which is transmitted from a resource allocated by the allocation method, for the data transmitted from the user's terminal; and determining whether the transmitted data area retransmitted according to the confirmed response information.

Method and device for transmitting response information, and resource allocation for response information transmission according to transmission conditions in a wireless communication system

The present disclosure relates to a handover apparatus and method capable of voiding in-device coexistence interference. In order to prevent handover failure due to in-device coexistence interference, an SeNB provides TDM information (including TDM pattern s information or TDM activation information) to a UE during a handover procedure, and the UE performs the handover with a TeNB according to the provided TDM information. By the disclosure, the UE can perform ISM signal transmission/reception and LTE signal transmission/reception with the TeNB in a discriminated manner according to a particular TDM pattern, so as to prevent handover failure due to the in-UE coexistence interference.

Handover apparatus and method for avoiding in-device coexistence interference

Disclosed are an apparatus for Channel State Information-Reference Signal (CSI-RS) allocation and a method for CSI-RS transmission using the same in a wireless communication system. A CSI-RS for each antenna port is allocated to REs or subcarriers on a basis of a symbol or symbol axis in a subframe or Resource Block (RB), and is allocated in such a manner that a distance between neighboring CSI-RS allocation REs or subcarriers may be 3 REs or subcarriers. Accordingly, in the range of following CSI-RS transmission overhead, CSI-RSs are allocated to a time-frequency resource domain in such a manner so as to have perfect orthogonality or quasi-orthogonality according to cells or cell groups. Then, the CSI-RSs, which have been allocated to the time-frequency resource domain, are transmitted.

Method and apparatus for allocating channel state information-reference signal in wireless communication system

The present disclosure relates to a handover apparatus and method capable of avoiding in-device coexistence interference. In order to prevent handover failure due to in-device coexistence interference, an SeNB provides TDM information (including TDM pattern information or TDM activation information) to a UE during a handover procedure, and the UE performs the handover with a TeNB according to the provided TDM information. By the disclosure, the UE can perform ISM signal transmission/reception and LTE signal transmission/reception with the TeNB in a discriminated manner according to a particular TDM pattern, so as to prevent handover failure due to the in-UE coexistence interference.

The present invention relates to a method of receiving transmission mode information on a user terminal in an inter-band TDD transmission scheme. The present invention includes, at a base station controlling two or more bands with different time division duplex (TDD) settings, receiving a user terminal function information message that includes transmission mode function information on the user terminal in the two or more bands, and setting an element carrier aggregation environment of the user terminal to match the transmission mode function information, wherein the transmission mode function information includes information on whether the user terminal operates in a full duplex of half-duplex mode in the two or more bands.

Method and device for transmitting/receiving transmission mode information on user terminal in inter-band TDD transmission scheme

A base station includes: an area information generation unit which generates information for a determined second area by determining an additional assignment of the second area different from a first area to a component carrier (CC) of the first area having a bandwidth smaller than a bandwidth of a maximum assignable CC; a mapping control unit which controls an assignment of a reference signal to a frequency band including the first and second areas by generating the reference signal for channel estimation in the first and second areas; a signal generation unit which generates the information for the second area and the reference signal as a wireless signal; and a transmission unit for transmitting the generated wireless signal and is characterized by transmitting data to a user terminal and receiving the data from the user terminal by assigning the resources to the first and second areas.

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Seoul, South Korea

Kibum Kwon