摘要:
A method and an apparatus for data transmission in a mobile telecommunication system supporting an enhanced uplink service are provided. A Transport Format Combination (TFC) selector determines TF information for data to be transmitted through a first data channel not supporting Hybrid Automatic Repeat reQuest (HARQ) and a second data channel supporting HARQ, and determines gain factors for the first and second data channel, and first and second control channel carrying control information for the first and second data channel. The gain factors are input to a physical channel transmission controller, and the physical channel transmission controller scales-down the gain factor for the second channel if total transmit power required for transmission of the channels exceeds the predetermined maximum allowed power. A gain scaler adjusts transmit powers of the channels using the scaled gain factor and gain factors for the first data channel, the first control channel and the second control channel.
摘要:
The present disclosure relates to a 5G or pre-5G communication system to be provided for supporting a higher data transfer rate beyond a 4G communication system such as LTE. According to the present disclosure, there is provided a method for supporting repetitive transmission of uplink data by a base station in a mobile communication system operating in a time division duplex (TDD) based cell including at least one subframe for uplink transmission and at least one subframe for downlink transmission comprising repeatedly transmitting uplink data scheduling information in a downlink subframe where an uplink hybrid automatic repeat request (HARQ) process is defined and repeatedly receiving uplink data in uplink subframes which start from an uplink subframe according to an HARQ transmission timing of an HARQ process defined in a downlink subframe where the repetitive transmitting of the uplink data scheduling information is complete.
摘要:
An apparatus and method for allocating resources in an Single Carrier-Frequency Division Multiple Access (SC-FDMA) communication system are provided, in which a Node B performs inter-subband hopping on a resource unit for a User Equipment (UE) on a frequency axis along which at least two subbands are defined, at each predetermined hopping time, determines whether to turn on or off mirroring in a subband having the hopped resource unit on a cell basis at the each hopping time, selects a resource unit by selectively mirroring the hopped unit according to the determination, and allocates the selected resource unit to the UE.
摘要:
A method and an apparatus are provided for generating feedback in a communication system. The method includes receiving information about first Evolved Node Bs (ENBs) and a threshold for the first ENBs, which are powered off at a specific time; measuring a channel status for each of second ENBs, which are subject to channel status measurement; selecting a third ENB having an optimal channel status from among the second ENBs, based on the measured channel statuses; generating first feedback information including a cell index and channel status information for the third ENB; measuring a channel status for each of the second ENBs, while the first ENBs are powered off; selecting a fourth ENB having an optimal channel status from among the second ENBs, based on the measured channel statuses; and generating second feedback information including a cell index and channel status information for the fourth ENB.
摘要:
Provided is a method and an apparatus for transmitting/receiving a Broadcast Channel (BCH), by which a User Equipment (UE) can successfully receive system information of neighboring cells in a system supporting the scalability of a UE reception bandwidth and a system bandwidth. The method includes identifying a system bandwidth of a cell by comparing the system bandwidth with reception bandwidths of UEs within the cell, mapping two BCH information blocks including system information to a central band having a bandwidth equal to a transmission bandwidth of the BCH, additionally mapping at least one of the information blocks into each of one-half bands of the system bands, when the system bandwidth is two times an amount of the reception bandwidth, and transmitting a frequency domain signal, to which the information blocks are mapped, to the UEs located within the cell.
摘要:
A method and apparatus for transmitting a control channel in a base station for a wireless communication system. The base station transmits information on a number of channel elements constituting control channels, to a terminal; establishes a set of control channels that the terminal can receive, within the number of channel elements using an identifier (ID) of the terminal; and transmits control information to the terminal through a selected control channel among the control channels. The terminal is restricted to monitor only a proper number of control channels established without the need to monitor all control channels, thereby reducing reception complexity and avoiding unnecessary battery consumption.