摘要:
Provided is a signal transmission method of a multi-node system employing a plurality of nodes and a base station that can control each of the plurality of nodes. The method includes: transmitting per-node transmission information to a user equipment; transmitting at least one stream to the user equipment by applying a precoding matrix determined for each node in at least one node among the plurality of nodes; and receiving per-node feedback information from the user equipment, wherein the per-node feedback information includes information on a precoding matrix applicable to a node which transmits the at least one stream.
摘要:
A method of transmitting a reference signal in a multi-node system including a plurality of nodes and a base station for controlling the plurality of nodes is provided. The method includes: transmitting node information to a user equipment; and transmitting the reference signal to the user equipment from at least one node among the plurality of nodes on the basis of the node information, wherein the node information includes information capable of identifying the reference signal transmitted from the at least one node, and wherein each of the plurality of nodes transmits a different reference signal.
摘要:
Provided are a method and an apparatus for downlink control channel allocation in a wireless communication system. A base station allocates a downlink control channel which supports a multi-node system to a data region within an resource block (RB), and transmits a downlink control signal to a user equipment through the allocated downlink channel. The multi-node system comprises a plurality of nodes connected to one macro node, and the macro node and the plurality of nodes have the same cell identifier (ID).
摘要:
Provided are a method and an apparatus for a terminal performing uplink HARQ in a multi-node system comprising a plurality of nodes and a base station, which is connected to and can control each of the plurality of nodes. The method comprises the following steps: receiving information on control channel allocation from the base station; transmitting uplink data to at least one node from the plurality of nodes; and receiving from the at least one node an acknowledgement/not-acknowledgement (ACK/NACK) signal with respect to the uplink data, based on the information on the control channel allocation.
摘要:
Provided are a method and an apparatus for searching control information by a terminal. The method comprises the steps of: acquiring from a base station, by means of a physical downlink control channel (PDCCH) or an upper layer message, at least one type of information being from location information on a physical control format indication channel (E-PCFICH) or location information on an E-control region; receiving the E-PCFICH based on the E-PCFICH location information; acquiring size information on the E-control region by means of the E-PCFICH; and searching E-PDCCH in the E-control region.
摘要:
Provided is a channel status information feedback method and apparatus of a terminal in a multi-node system, including a plurality of nodes and a base station which is connected to and can control each of the plurality of nodes. The method comprises the steps of: obtaining one precoding matrix index (PMI) for each cooperative node with respect to the entire target frequency band; obtaining a phase correction value to be applied to the PMI for said each cooperative node in each sub-band within the target frequency band; and feeding the calculated PMI and phase correction value back to the serving node.
摘要:
Disclosed is a signal transceiving method which can reduce interference between nodes in a multi-node system. The method comprises the steps of: receiving reference signal configuration information from a first node; receiving a reference signal from a second node; measuring interference caused by the second node using the reference signal, and generating interference node information; and transmitting the interference node information to the first node, wherein the reference signal configuration information includes mapping information between the second node and the reference signal, and the interference node information includes an index of the reference signal.
摘要:
Provided are a method and a device for transmitting an IWS (Inter-Working signal) of a femto base station in a wireless communication system. The femto base station generates a sequence of a preamble including information about a frequency band on which the femto base station operates, maps the IWS including the sequence of the preamble to a plurality of subcarriers on a frequency domain, and transmits the IWS to a terminal through the subcarriers. The IWS can be mapped to the plurality of subcarriers positioned on one equal OFDM (Orthogonal Frequency Division Multiplexing) symbol on a time domain or a plurality of preset RUs (Resource Unit).
摘要:
In a communication system including a base station having a plurality of antennas, a first terminal supporting a first antenna system and a second terminal supporting a second antenna system, at least one of the first or second terminal acquires information that is contained in a signal received from the base station through a first wireless resource region and a second wireless resource region. The first terminal acquires the information contained in the first and second wireless resource regions through a signal transmitted by an antenna in a first group among the plurality of antennas. The second terminal acquires the information contained in the first wireless resource region through a signal transmitted by an antenna in the first group, and the information contained in the second wireless resource region through a signal transmitted by an antenna in the first group and/or in a second group among the plurality of antennas.
摘要:
Provided is a method for transmitting feedback information of a UE in a distributed antenna system in which a plurality of antennas are distributedly disposed within a cell is provided. The method includes transmitting first feedback information used for a base station (BS) to allocate at least one of a plurality of antennas to a UE, to the BS; receiving antenna allocation information determined based on the first feedback information from the BS; and transmitting second feedback information indicating a channel state with respect to an antenna allocated according to the antenna allocation information to the BS.