Abstract:
Apparatuses for evolved Node Bs (eNBs) and User Equipment (UEs) for transmission of low latency, non-control communication data through a control region are disclosed. An apparatus for an eNB includes control circuitry configured to generate control channel elements (CCEs) including low latency, non-control communication data instead of only control data, and cause the CCEs to be transmitted through the downlink control region to a UE. An apparatus for a UE includes control circuitry configured to decode control communications directed to the UE and received from evolved Node Bs through a downlink control region of a cellular wireless data network, and extract low latency, non-control communication data that has been substituted into the control communications instead of control data.
Abstract:
Disclosed are apparatuses for an evolved Node B (eNB). An apparatus for an eNB includes control circuitry configured to puncture at least a portion of orthogonal frequency domain multiplexing (OFDM) symbols with a shortened transmission time interval (TTI) symbol and control a communication device of the eNB to transmit the OFDM symbols and the shortened TTI symbol, wherein mapping of communication data to resource elements of the OFDM symbols and the puncturing of the at least a portion of the OFDM symbols is carried out such that a ratio of a number of punctured systematic bits to a number of punctured parity bits is about the same as or less than a ratio of a number of systematic bits in the communication data to a number of parity bits in the communication data.
Abstract:
Systems, apparatus, user equipment (UE), evolved node B (eNB), computer readable media, and methods are described for multi-carrier listen before talk operations. In various embodiments, a transmitting device may assign one or more primary carriers to perform listen before talk (LBT) operations, with non-primary carriers performing a channel sensing operation at the end of the LBT operations of at least one primary channel. In various embodiments, the LBT operations at the primary carriers may use a shared random countdown number or an independent random countdown.
Abstract:
Radio frame configuration circuitry for use in a device of a wireless communication system is provided. The radio frame configuration circuitry uses control circuitry to select between a plurality of different time-division duplex, TDD, configurations for a radio frame having slots with a configured duration. Transceiver circuitry performs TDD communications based on selections made by the control circuitry such that an average periodicity of switching between transmission of information and reception of information during the TDD communication is the same despite switching between different ones of the plurality of different TDD configurations. The radio frame configuration circuitry can be incorporated in a UE or an eNodeB or a Peer Radio Head. A corresponding method is provided.
Abstract:
Embodiments of latency reduction for wireless data transmission are generally described herein. A user equipment (UE) identifies a shortened transmission time interval (xTTI) length configuration for a time division duplexing (TDD) component carrier (CC), the xTTI length configuration comprising a length in time or a length in orthogonal frequency division multiplexing (OFDM) symbols. The UE identifies scheduling timing and hybrid automatic repeat request (HARQ) timing of physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH) on the TDD CC based on the identified xTTI length configuration. The UE signals for transmission of a HARQ acknowledgement (HARQ-ACK) based on the identified xTTI length configuration.
Abstract:
Radio frame configuration circuitry for use in a device of a wireless communication system is provided. The radio frame configuration circuitry uses control circuitry to select between a plurality of different time-division duplex, TDD, configurations for a radio frame having slots with a configured duration. Transceiver circuitry performs TDD communications based on selections made by the control circuitry such that an average periodicity of switching between transmission of information and reception of information during the TDD communication is the same despite switching between different ones of the plurality of different TDD configurations. The radio frame configuration circuitry can be incorporated in a UE or an eNodeB or a Peer Radio Head. A corresponding method is provided.