摘要:
Disclosed is a User Equipment device configured to select a suitable acknowledgement timing configuration in a time division duplex-frequency division duplex (TDD-FDD) carrier aggregation (CA) enabled wireless network, comprising establishing, by a user equipment (UE), a connection to a primary serving cell (PCell) and a secondary serving cell (SCell) of a base station, the PCell having a first TDD or first FDD configuration, the SCell having a second FDD or second TDD configuration, receiving, by the UE, downlink data through the PCell and SCell, categorizing a type of downlink data subframe in use by the SCell, selecting, by the UE, a hybrid automatic repeat request (HARQ) timing configuration based on the type of downlink data subframe for use by the SCell, and transmitting acknowledgement information associated with the downlink data according to the selected hybrid automatic repeat request (HARQ) timing configuration on PCell. Other embodiments may be described and claimed.
摘要:
Technology for mapping an enhanced physical downlink control channel to physical resource blocks in a radio frame is disclosed. One method comprises mapping modulated symbols in the ePDCCH to at least one control channel element. The at least one control channel element may be mapped to resource elements located in a plurality of distributed physical resource blocks in a subframe, wherein each resource block is in a distributed resource block group and is separated by at least one additional resource block in the subframe. The mapping may also be to resource elements distributed in a single resource block in the subframe, wherein the control channel element is mapped to be distributed in frequency and time relative to other mapped resource elements in the single resource block and the single resource block belongs to a localized resource block group.
摘要:
Disclosed are a method and apparatus for transmitting an uplink Sounding Reference Signal (SRS), the method including identifying a number of downlink and uplink switch points within a radio frame Nsp and a system frame number nf, calculating a value of nSRS according to a number of downlink and uplink switch points within a radio frame Nsp, and the system frame number nf for transmitting the SRS, determining a frequency-domain starting position of the SRS with nSRS, and transmitting the SRS at the determined frequency-domain starting position.
摘要:
A method and apparatus for indicating downlink physical resources scheduling in a wireless communication system are provided. The method includes sending downlink control information to a User Equipment (UE) on a first component carrier by an evolved Node B (eNB), wherein single downlink control information is used to schedule physical resources in at least one downlink sub-frame of one of a plurality of component carriers at a time, the plurality of component carriers including the first component carrier, a second component carrier, . . . , a kth component carrier, wherein k is greater than or equal to 2, receiving the downlink control information on the first component carrier, and receiving downlink data according to the downlink control information by the UE. The present invention can achieve a peak data rate to reach the design target of International Mobile Telecommunications (IMT)-Advanced system.