摘要:
A method of transmitting subframe designating information in downlink in a wireless communication system is disclosed. The present invention includes generating the subframe designating information for designating a subframe of a specific type in a radio frame and transmitting the generated subframe designating information to a user equipment, wherein the subframe designating information includes initial location information indicating an initial location of the subframe of the specific type on the radio frame and period information indicating a period for the subframe of the specific type to be repeated.
摘要:
A method for reducing handover interruption time in a mobile station is disclosed, in which a mobile station performs a ranging procedure using a dedicated ranging code previously allocated from a target base station. The dedicated ranging code allocated by the target base station may be provided through the serving base station, or may directly be provided from the target base station.
摘要:
A method of performing channel sounding in a frequency division duplex (FDD) system in which an uplink frame and a downlink frame use different frequency bands includes dividing a transmission bandwidth with respect to the uplink frame into a plurality of sounding zones, allocating at least one of the plurality of sounding zones to a user equipment and receiving a sounding signal from the user equipment through the allocated sounding zone. Inter-cell interference can be mitigated and overhead due to transmission of the sounding signal can be reduced.
摘要:
A method for reducing handover interruption time in a mobile station is disclosed, in which a mobile station performs a ranging procedure using a dedicated ranging code previously allocated from a target base station. The dedicated ranging code allocated by the target base station may be provided through the serving base station, or may directly be provided from the target base station.
摘要:
A method of performing hybrid automatic repeat request (HARQ) by a source station in a wireless communication system is provided. The method includes: transmitting data to a destination station at a transmission start time; receiving an acknowledgment (ACK) or negative-acknowledgement (NACK) signal for the data from the destination station after a first transmission time interval elapses from the transmission start time; and upon receiving the NACK signal, retransmitting the data after a second transmission time interval elapses from the transmission start time, wherein the second transmission time interval is one transmission time interval selected from a plurality of predetermined transmission time intervals. Accordingly, the wireless communication system can perform a heterogeneous HARQ process in which an HARQ period, an ACK/NACK transmission start time, and the like are different.
摘要:
A signal transmission method is provided, wherein, when a transmitter transmits a signal to a receiver, a transmitter processor multiplexes a plurality of data for a plurality of connections to be transmitted to one specific receiver, and constitutes a multiplexed medium access control (MAC) packet data unit (PDU) containing a MAC header part for receiving the multiplexed data, and a MAC PDU payload containing the multiplexed data, and the transmitter transmits the multiplexed MAC PDU to the specific receiver. The MAC header part includes a first header part containing a generic MAC header, and a second header part containing an extended header indicator serving as a 1-bit indicator for indicating the existence of an extended header (EH) for each flow ID for each of the plurality of connections. The MAC header part further includes a third header part which selectively contains the extended header for each flow ID in accordance with the extended header indicators for each flow ID.
摘要:
A method for transmitting a voice over Internet protocol (VoIP) packet includes allocating a radio resource for VoIP packet transmission to a user, transitioning a VoIP service from a talk period, in which the VoIP packet is transmitted using the radio resource, to a silence period in which the VoIP packet is not transmitted, releasing the radio resource during the silence period, and transitioning the VoIP service to the talk period by reallocating the radio resource. Limited radio resources can be further effectively used.
摘要:
Disclosed are an apparatus and method for transmitting/receiving control information in a wireless communication system that supports carrier aggregation. According to the present invention, a processor of a base station device that transmits control information configures a component carrier type for each of a plurality of downlink component carriers (DL CCs) in accordance with whether or not each of the plurality of DL CCs can support a relay PDCCH (R-PDCCH), which is a downlink control channel dedicated to a relay node. A transmitting antenna transmits information on the type of each of the configured DL Cs to the relay node.
摘要:
In the transmission of user data for a user equipment and control information on the user data to the user equipment using a plurality of carrier waves by a base station in a wireless communication system, the control information can be transmitted over a portion of the plurality of carrier waves, and carrier waves over which only the user data is transmitted can be generated without the control information. Here, the base station transmits, at a certain number of subframes following the subframes at which the control information is transmitted, the user data over the carrier waves to which only the user data is allocated. Thus, the user equipment can minimize the buffering of the user data during the detection of the control information, and decode the user data.
摘要:
A method and apparatus of transmitting data in a Multimedia Broadcast multicast service Single Frequency Network (MBSFN) subframe in a wireless communication system is provided. A base station (BS) transmits a physical downlink control channel (PDCCH) to a user equipment in a first orthogonal frequency division multiplexing (OFDM) symbol, transmits reference signals for a plurality of extended antenna ports to the user equipment in a second OFDM symbol by mapping the reference signals to subcarriers, and transmits a physical downlink shared channel (PDSCH) to the user equipment in the second OFDM symbol by mapping the PDSCH to the remaining subcarriers other than the subcarriers to which the reference signals are mapped.