摘要:
A Channel Status Information (CSI) transmission method and apparatus of a terminal are provided for use in a wireless communication system. In the wireless communication system supporting carrier aggregation, the terminal transmits the CSIs of component carriers without conflict of their transmission time points, resulting in an improvement of system performance. In a case where the transmission time points are determined to overlap unavoidably, the terminal transmits the CSI as compressed.
摘要:
A method for grouping a control channel resource in an Orthogonal Frequency Division Multiplexing based mobile communication system for adjusting inter-cell interference and an apparatus performing the same are disclosed. Inter-cell inference used between cells or base stations is controlled or distributed to secure reception of a control channel in a heterogeneous system, and interference may be efficiently controlled through coordination of resource groups by cells. The method and apparatus are equally applicable when resources of backhaul transmission channel of a relay cell in a cell are grouped.
摘要:
A method is provided for allocating resources of a control channel in a mobile communication system using Orthogonal Frequency Division Multiplexing (OFDM). The method includes, when a time index and a frequency index of available Resource Elements (REs) are defined as l and k, respectively, dividing the available REs in a two-dimensional structure of (k, l); and time-first-allocating each RE to a plurality of RE groups while increasing the time index l for each frequency index k from an initial value up to a predetermined range.
摘要:
A method is provided for allocating resources of a control channel in a mobile communication system using Orthogonal Frequency Division Multiplexing (OFDM). The method includes, when a time index and a frequency index of available Resource Elements (REs) are defined as l and k, respectively, dividing the available REs in a two-dimensional structure of (k, l); and time-first-allocating each RE to a plurality of RE groups while increasing the time index l for each frequency index k from an initial value up to a predetermined range.
摘要:
A method for transmitting an uplink control channel at a terminal in a Single Carrier Frequency Division Multiple Access (SC-FDMA)-based mobile communication system is provided. The transmission method includes receiving a control channel index allocated from a base station; transmitting control information at every symbol through a subband and a Zadoff-Chue sequence offset resource, which are mapped to the control channel index according to a first grouping rule; and transmitting control information through a subband and a Zadoff-Chue sequence offset resource, which are mapped to the control channel index according to a second grouping rule, beginning from a symbol after a slot boundary.
摘要:
A sounding reference signal transmission method which is efficient in an uplink wireless telecommunications system using a multiple antenna technique and sounding reference signal hopping. A terminal using the multiple antenna technique is equipped with a plurality of antennas, and a base station receives the sounding reference signal transmitted from these antennas and estimates the uplink channel state of each antenna. Moreover, the sounding reference signal performs frequency hopping so that the base station determines the channel condition for the entire bandwidth to which data is transmitted in the uplink system. The sounding reference signal is transmitted through an antenna pattern in which the sounding reference signal can be transmitted through the entire data transmission bandwidth of the uplink system for each antenna of the terminal without additional overhead in this environment.
摘要:
A scheduling method and apparatus are provided for soft handover in a user equipment (UE) in in a mobile communication system supporting an enhanced uplink packet data service. A receiver receives dedicated scheduling assignment information for dedicated scheduling assignment from a serving Node B, and receives at least one scheduling grant indicator for common scheduling assignment from at least one non-serving Node B. A first scheduling decider determines a combined scheduling grant indicator by combining at least one scheduling grant indicator received from the at least one non-serving Node B. A second scheduling decider determines whether to use the combined scheduling grant indicator according to a predetermined reference, and a maximum rate of an uplink according to the dedicated scheduling assignment information or the combined scheduling grant indicator. A transport format decider determines a transport format of an uplink within the maximum rate.
摘要:
A method for allocating physical resources to an Acknowledgement (ACK)/Negative Acknowledgement (NACK) signal channel representative of a response signal in a wireless communication system. The method includes grouping ACK/NACK signal channels corresponding to a plurality of resource blocks used for transmission of a data channel or a control channel into a plurality of groups so ACK/NACK signal channels having consecutive indexes do not belong to the same group; and allocating same frequency resources to ACK/NACK signal channels belonging to the same ACK/NACK signal channel group and allocating orthogonal sequences so ACK/NACK signal channels in each ACK/NACK signal channel group are distinguished in a code domain.
摘要:
A method and device deactivate carrier aggregation and execute single carrier operation in a terminal, in a wireless communication system in which broadband is achieved by means of carrier aggregation. More specifically, in a terminal which is running a plurality of carriers, unnecessary power consumption in the terminal is prevented and additional screening events are minimized by defining physical layer signaling so as to make the terminal rapidly convert to running a single carrier.
摘要:
A method and apparatus for receiving control information in a mobile communication system. A controller acquires information indicating variable Control Channel Elements (CCEs) allocated for first User Equipments (UEs) among CCEs constituting control channels, acquires information indicating fixed CCEs allocated for second UEs, selects the variable CCEs when a UE receiving the control information is included in the first UEs, and selects the fixed CCEs when the UE is included in the second UEs. A control information receiver receives the control information through the selected CCEs.