Abstract:
A method is provided for transmitting Acknowledgement/Negative Acknowledgement (ACK/NACK) information in a wireless communication system. A User Equipment (UE) configures a Physical Uplink Control Channel (PUCCH) format 3 for transmission of the ACK/NACK information. The UE transmits the ACK/NACK information for downlink transmission in a downlink subframe set including M downlink subframes in one uplink subframe, wherein M>1. A plurality of serving cells are configured for the UE and include one Primary Cell (PCell) and at least one Secondary Cell (SCell). The UE transmits the ACK/NACK information using a PUCCH format 1b when a first condition is met that comprises a condition in case where the ACK/NACK information corresponds to one Physical Downlink Shared Channel (PDSCH) without a corresponding Physical Downlink Control Channel (PDCCH) received only on the PCell in the downlink subframe set and the ACK/NACK information corresponds to an additional PDSCH indicated by detection of one corresponding PDCCH.
Abstract:
A method and a terminal for transmitting control information to a base station in a wireless communication system. The method according to an embodiment includes receiving a Physical Downlink Control Channel (PDCCH) from the base station through at least one serving cell configured for the terminal; and setting an uplink-downlink (UL-DL) configuration for a reference unit to another UL-DL configuration after a predetermined time from when the PDCCH is received if the PDCCH indicates to set the UL-DL configuration for the at least one serving cell to the another UL-DL configuration. The indication of the PDCCH is transmitted with a predetermined period.
Abstract:
A method is provided for receiving a signal by a user equipment (UE) using time division multiplexing (TDD) in a wireless communication system. The UE receives uplink (UL) grant information on a first cell, the UL grant information scheduling a UL transmission on a second cell. The UE transmits UL data in a UL subframe on the second cell via a physical UL shared channel based on the UL grant information. The UE receives hybrid automatic repeat and request acknowledgement (HARQ-ACK) information in a downlink (DL) subframe on the first cell. The first cell and the second cell have different TDD UL-DL configurations. The DL subframe on the first cell is determined based on a TDD UL-DL configuration of the second cell.
Abstract:
Disclosed are a terminal device for controlling uplink signal transmission power, and a method therefore. The present invention relates to a method and terminal device for controlling uplink transmission power, wherein the method, in which a terminal that communicates with cells of each timing alignment (TA) group controls uplink transmission power in the event a plurality of TA groups including one or more cells exists in a wireless communication system, comprises: a step of determining the uplink transmission power for at least one channel in the event at least two channels from among a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH) including a plurality of pieces of uplink control information (UCI), a PUSCH including no UCI, a physical random access channel (PRACH), and a sounding reference signal (SRS) are simultaneously transmitted in the same subframe in each specific cell of the plurality of TA groups; and a step of transmitting said at least one channel with the determined uplink transmission power, wherein said uplink transmission power is determined in consideration of a TA group index.
Abstract:
A mobile terminal is provided. The mobile terminal includes a terminal body, a window disposed at one surface of a terminal body, a first frame having a space for mounting one or more components, the first frame having a first cavity, a display configured to output visual information through the window, the display being located at the first cavity, a battery configured to supply power to the terminal body, the battery being located at the first cavity, and a separation sheet coupled to the first frame to separate a first region of the terminal body where the display is located from a second region of the terminal body where the battery is located. A periphery of the separation sheet contacts the bottom of the first cavity.
Abstract:
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for reporting CSI in a wireless communication system, the method comprising: a step for configuring a plurality of serving cells; and a step for reporting the CSI of only one serving cell in a corresponding subframe, wherein the step for reporting the CSI of only one serving cell comprises: excluding reporting the CSI of a lower priority when CSI reports of the plurality of serving cells in the corresponding subframe collide; and excluding reporting the CSI of serving cells other than the serving cell having the smallest index when the CSI reports of different serving cells having the same priority in the corresponding subframe collide.
Abstract:
The present invention pertains to a wireless communication system. Particularly, the present invention relates to a method for transmitting uplink control information and an apparatus for the same, wherein the method comprises the steps of: selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs, from a plurality of uplink control channel resources; and transmitting a bit value corresponding to the plurality of HARQ-ACKs through the use of the selected uplink control channel resource.
Abstract:
A method is provided for transmitting Acknowledgement/Negative Acknowledgement (ACK/NACK) information at a User Equipment (UE) in a wireless communication system. The UE is configured to use a Physical Uplink Control Channel (PUCCH) format 3 for the transmission of the ACK/NACK information. A PUCCH format between a PUCCH format 1a/1b and the PUCCH format 3 is determined for transmission of the ACK/NACK information for downlink transmission in a downlink frame set including M downlink subframes is to be transmitted, where M≧1, in one uplink subframe, according to whether at least one of specific conditions is met. The ACK/NACK information is transmitted using the determined PUCCH format in the one uplink subframe. The ACK/NACK information is transmitted by using the PUCCH format 1a/1b, when at least one of the specific conditions is met. One serving cell is configured for the UE.
Abstract:
A method for transmitting Acknowledgement/Negative Acknowledgement (ACK/NACK) information at a User Equipment (UE) configured to use a Physical Uplink Control Channel (PUCCH) format 3 in a wireless communication system, the method includes transmitting ACK/NACK information for downlink transmission in a downlink frame set including M downlink subframes in one uplink subframe, where M≧1, wherein the ACK/NACK information is transmitted using a PUCCH format lb when at least one of specific conditions is met, wherein more than one serving cell is configured for the UE and the more than one serving cell includes one Primary Cell (PCell) and at least one Secondary Cell (SCell), wherein the specific conditions comprise: a first condition in case both one Physical Downlink Shared Channel (PDSCH), indicated by a detection of a corresponding Physical Downlink Control Channel (PDCCH), is present only on the PCell in the downlink subframe set, and a Downlink Assignment Index (DAI) value in the PDCCH is equal to 1, and a second condition in case one Semi-Persistent Scheduling (SPS) release PDCCH with the DAI value being equal to 1 is present on the PCell in the downlink subframe set.
Abstract:
A wireless communication system is disclosed. Disclosed herein are methods for transmitting a physical uplink control channel (PUCCH) signal in a wireless communication system, which includes setting transmit power for the PUCCH signal, and an apparatus thereof. If the PUCCH signal is transmitted on a subframe configured for a scheduling request (SR), the PUCCH signal includes one or more hybrid automatic repeat request acknowledgement (HARQ-ACK) bits and an SR bit. When determining the transmit power for the PUCCH, the SR bit is selectively considered depending on whether or not a transport block for an uplink shared channel (UL-SCH) is present in the subframe.