Abstract:
Provided herein are method and apparatus for communication in LTE system on unlicensed spectrum. An apparatus for a user equipment (UE) may include: circuitry configured to: detect a presence detection reference signal for a channel having a dwell period on an unlicensed spectrum; and determine a location of a starting subframe for a physical downlink control channel (PDCCH) in the dwell period based on detection of the presence detection reference signal; and a memory to store the location of the starting subframe. In some embodiments of the present disclosure, the dwell period is fixed. In some embodiments, the dwell period comprises a fixed downlink dwell period and a fixed uplink dwell period.
Abstract:
Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to associate a first Beam Reference Signal (BRS) for a first Transmit (Tx) beam having a first beamwidth with one or more second BRSes for one or more respectively corresponding second Tx beams having a second beamwidth. The second circuitry may be operable to generate a first BRS transmission carrying the first BRS, and to generate one or more second BRS transmissions carrying the one or more respectively corresponding second BRSes. The third circuitry may be operable to provide information regarding the first BRS and the second BRSes to the second circuitry.
Abstract:
Example embodiments presented herein relate to an apparatus, for use in a user equipment, for providing Chanel State Information (CSI) feedback in a CSI Feedback Channel (CFCH) comprised in a self-contained frame structure.
Abstract:
Apparatus that sends uplink control information (UCI) from user equipment (UE) to a network node, generates elements of the UCI including at least one of hybrid automatic repeat request - acknowledgement (HARQ-ACK) feedback for one or more uplink (UL) resources, a scheduling request (SR), a channel state information (CSI) report and a beam related information report in response to a trigger set by the network node. The apparatus encodes the UCI elements for transmission via a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) of the one or more UL resources. The one or more UL resources may be UL slots or UL portions of downlink-uplink (DL-UL) slots received from a network node.
Abstract:
A UE configured to: receive at least one of PSS and SSS using a first MIMO beam; determine a second MIMO beam correlated with the first MIMO beam according to a first control signal received via the first MIMO beam; receive at least one of CSI-RS and a data signal using the second MIMO beam; and determine CSI according to a data signal received via the second MIMO beam.
Abstract:
Technology for PUSCH resource mapping is disclosed. One method comprise: applying a PUSCH resource mapping pattern for a PUSCH transmission, wherein the PUSCH resource mapping pattern to comprise a PUSCH associated resource element (RE) that is at the same position as that of a resource element for DMRS; and muting the PUSCH associated resource element in response to transmitting the PUSCH. A MIMO indicator to indicate a MIMO mode of a user equipment (UE) and a muting indicator to whether to mute the PUSCH associated RE for the DMRS in a corresponding antenna port may be included in an uplink grant to the UE. A bit map may be used to identify one or more RE muting groups. A relationship information between the bit map and the muting resource element group and a PUSCH muting indicator to indicate whether PUSCH muting is enabled for the UE may be used.
Abstract:
User Equipment (UE) and base station (eNB) apparatus and methodology for CQI reporting for flexible transmission mode switching. The UE includes memory and processing circuitry configured to generate a reporting message for an Evolved Node-B (eNB), the reporting message indicating a plurality oftransmit (Tx) beams as preferred Tx beams. In response to a channel state information reference signal (CSI-RS), the processing circuitry determines channel state information (CSI) for at least two of the preferred Tx beams, the CSI-RS beamformed based on the plurality of preferred Tx beams, and the CSI including a transmission beam index for each of the preferred Tx beams. The determined CSI is reported to the eNB, where the CSI is configured by the UE to indicate a preferred transmission mode base at least in part on the transmission beam index for each of the preferred Tx beams.
Abstract:
A beam formation matching for communications between a receiver (201) and transmitter (101) in a multiple beam Multiple Input Multiple Output (MIMO) system (100) is disclosed.
Abstract:
Systems and methods of compensating for interference in a 5G system are generally described. An Interference Measurement Resource (IMR) is present in multiple resource elements of a subframe or a combination of a ZP and NZP Tracking Reference Signal (PT-RS) are used. An IMR covariance matrix is applied to compensate for the interference. The number of IMR subcarriers and symbols between adjacent IMRs is dependent on the numerologies and synchronization within the UE network. When the IMR is in multiple subcarriers in the first symbol of the second slot, and the matrix is determined using the IMR rather than a DMRS. The DCI comprises a flag that denotes whether IMR is enabled for a current PDCH, and indicates the manner to use the IMR. The subcarrier index for the NZP PT-RS overlaps the subcarrier index for the ZP PT-RS of another UE or gNB.