Abstract:
The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. The method for a terminal to receive a signal in a wireless access system supporting an FDR, according to an embodiment of the present invention, comprises the steps of: measuring the inter-terminal interference between the terminal and candidate terminals; establishing a group of the terminal and a candidate terminal that has been selected due to the measured inter-terminal interference value; transmitting group information of the group to a base station; and receiving a signal by using resources allocated on the basis of the group information.
Abstract:
A method for transmitting information related to a sounding reference signal (SRS) transmission by a base station (BS) of a full duplex radio (FDR) mode in a wireless communication system includes: transmitting information related to a resource region to be used for the SRS transmission to a user equipment of the FDR mode within a resource region configured as an uplink (UL) idle interval; receiving a SRS through the resource region for the SRS transmission from the user equipment; performing an uplink (UL) channel estimation based on the received SRS; and performing a downlink (DL) channel estimation by applying a channel reciprocity characteristic to a result of the uplink (UL) channel estimation.
Abstract:
A method for transmitting channel status information (CSI) of downlink multi-carrier transmission includes generating the CSI including at least one of a rank indicator (RI), a first precoding matrix index (PMI), a second PMI and a channel quality indicator (CQI) for one or more downlink carriers, the CQI being calculated based on precoding information determined by a combination of the first and second PMIs, determining, when two or more CSIs collide with one another in one uplink subframe of one uplink carrier, a CSI to be transmitted on the basis of priority, and transmitting the determined CSI over a uplink channel. If a CSI including an RI or a wideband first PMI collides with a CSI including a wideband CQI or a subband CQI, the CSI including a wideband CQI or a subband CQI has low priority and is dropped.
Abstract:
A method for performing communication by a user equipment (UE) in a UE-flexible Time Division Duplex (TDD) mode in a network configured to support the UE-flexible TDD mode in which a base station (BS) operates in a full duplex mode and the UE operates in a half duplex mode includes receiving information associated with a UE-flexible TDD mode support cell configured to support the UE-flexible TDD mode through a primary cell (PCell) from the base station (BS); and receiving a physical downlink shared channel (PDSCH) from the base station (BS) through the UE-flexible TDD mode support cell based on the information.
Abstract:
The present invention relates to a wireless communication system. In detail, the present invention is a method for transmitting data to a base station (BS) by a user equipment (UE) includes: receiving information on a contention-based Physical Uplink Shared Channel (PUSCH) zone including a plurality of contention-based PUSCH resource blocks from the base station (BS); allocating at least one contention-based PUSCH resource block for transmission of the data based on the information on contention-based PUSCH zone; and transmitting the data to the base station (BS).
Abstract:
The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. A method for a base station for allocating resources in a wireless access system supporting FDR according to an embodiment of the present invention comprises the steps of: receiving, from a terminal, information regarding whether or not the terminal is participating in a grouping in which a plurality of terminals are configured as a group for resource allocation; and determining whether or not to group and allocating resources on the basis of the information regarding whether or not participating, wherein the information regarding whether or not participating may comprise a first item of information indicating whether the terminal can operate in full duplex (FD) in the same resource, a second item of information indicating (FD) in the same resource, a second item of information indicating FD operation is not possible in the same resource but whether an FD operation of another apparatus is supported, and a third item of information indicating whether a participation in the grouping is requested.
Abstract:
A method for performing a Full-Duplex Radio (FDR) operation in a wireless communication system that supports the FDR is disclosed. The method includes exchanging FDR capability information that represents whether to have a capability of performing the FDR operation between a user equipment (UE) and a base station (BS); receiving, by the UE, Inter-Device-Interference (IDI) measurement configuration information from the BS; performing, by the UE, an IDI measurement based on the received IDI measurement configuration information; reporting, by the UE, a result of the IDI measurement to the BS; and receiving, by the UE, a control message notifying that the UE is included in a group related to the FDR operation from the BS, where the FDR capability information includes indication information that represents whether to support an FDR mode that transmission and reception operations are available to be performed simultaneously using an identical radio resource.
Abstract:
A method is provided for transmitting Acknowledgement/Negative Acknowledgement (ACK/NACK) information in a wireless communication system. The method is performed by a User Equipment (UE) configured to use a Physical Uplink Control Channel (PUCCH) format 3. The UE determines a PUCCH format and a PUCCH resource through which ACK/NACK information for downlink transmission in a downlink subframe set including M downlink subframes is to be transmitted, wherein M>1. The UE transmits the ACK/NACK information using the PUCCH format and the PUCCH resource in one uplink subframe. A plurality of serving cells are configured for the UE and include one Primary Cell (PCell) and at least one Secondary Cell (SCell).
Abstract:
Disclosed is a method of receiving downlink control information and an apparatus therefore in a wireless access system supporting an enhanced physical downlink control channel. The method includes receiving, from an eNB, DCI transmission channel information that indicates which one of a physical downlink control channel (PDCCH) and the e-PDCCH is used to transmit the DCI, checking the starting symbol of the e-PDCCH when the DCI transmission channel information indicates that the e-PDCCH is used to transmit the DCI, and receiving the DCI by performing blind decoding on the e-PDCCH from the starting symbol of the e-PDCCH.
Abstract:
The method for performing a random access procedure by a user equipment in a network in which a plurality of communication systems interwork may comprise: establishing an association with an access point (AP) of a neighboring wireless LAN communication system if it is impossible to perform a direct uplink transmission to a cellular communication system of the plurality of communication systems or that the UE is located in an area where direct uplink transmission is not possible; transmitting, to the AP, a first message including a random access preamble sequence; receiving a second message from a eNode B of the cellular communication system in response to the first message; transmitting, to the AP, a third message including the received second message and a radio resource control (RRC) connection request; and receiving, from the eNode B, a fourth message related to an RRC connection setup in response to the third message.