Abstract:
Embodiments of an eNB to operate in accordance with a coverage enhancement mode are disclosed herein. The eNB may comprise hardware processing circuitry to, during a legacy sub-frame, transmit a system information block (SIB) in legacy SIB frequency resources according to a legacy SIB transmission format and refrain from transmission of channel state information reference signals (CSI-RS). The hardware processing circuitry may be further to, during a first coverage enhancement sub-frame, transmit a first portion of the SIB in first SIB frequency resources included in the legacy SIB frequency resources. The hardware processing circuitry may be further to, during a first coverage enhancement sub-frame, transmit a first set of CSI-RS in first CSI-RS frequency resources that include at least a portion of the legacy SIB frequency resources.
Abstract:
Wireless device, method, and computer readable media are disclosed for determining which channel status information (CSI) report of a user equipment (UE) to drop from a physical uplink control channel (PUCCH) packet. The method may include determining that a first CSI report and a second CSI report are to be sent in the PUCCH, where the first CSI report has a first reporting type and a first CSI sub-frame set, and the second CSI report has a second reporting type and a second CSI sub-frame set. The method may include determining to drop the first CSI report if the first CSI sub-frame set has a second lower priority than the second CSI sub-frame set. The determination to drop may be further based on a CSI processor index, serving cell index, and the CSI report priority.
Abstract:
Technology for conditional hybrid automatic retransmission re-quest (HARQ) mapping for carrier aggregation (CA) is disclosed. One method can include a user equipment (UE) determining when a subframe for physical downlink shared channel (PDSCH) transmission is configured for downlink semi-persistent scheduling (SPS). The subframe configured for downlink SPS can generate a first condition. The UE can generate HARQ-ACK states for the first condition for a HARQ bundling window with discontinuous transmission (DTX) padding for a secondary HARQ bundling window size for a secondary cell (SCell) and a primary HARQ bundling window size for a primary cell (PCell). The UE can generate HARQ-ACK states for a second condition for the HARQ bundling window with DTX padding including a DTX padding exception. The second condition can include conditions not covered by the first condition. The DTC padding exception can generate a set of HARQ-ACK states to uniquely define each padded HARQ-ACK state.
Abstract:
Technology for a user equipment (UE) configured for blind decoding downlink control information (DCI) from an enhanced physical downlink control channel (EPDCCH). The UE can receive, from a base station, the EPDCCH that includes the DCI. The UE can attempt one or more times to decode the DCI from enhanced control channel elements (ECCE) of the EPDCCH from physical resource block (PRB) region candidates in a PRB set using a selected set of enhanced resource element group (EREG) index maps for the ECCE until the DCI is successfully decoded. The resource elements (REs) of a PRB pair can include a block of symbols mapped in sequence to resource elements on an associated port when the REs are part of the EREGs assigned for the EPDCCH transmission.
Abstract:
Embodiments of a system and method for providing dynamic hybrid automatic repeat request-acknowledgement (HARQ-ACK) transmission with enhanced physical downlink control channels are generally described herein. In some embodiments, a receiver is arranged to receive, on an enhanced physical downlink control channel (ePDCCH), one of a lowest control channel element index (nCCE) and a lowest enhanced control channel element index (neCCE), a user equipment specific starting offset (NPUCCH(1)) and at least one additional offset-related parameter. A processor determines allocation of an uplink resource of a physical uplink control channel (PUCCH) for HARQ-ACK transmission based the one of a lowest control channel element index (nCCE) and a lowest enhanced control channel element index (neCCE), the user equipment specific starting offset (NPUCCH(1)) and at least one selected from the at least one additional offset-related parameter. A transmitter transmits a signal on the PUCCH using the allocated uplink resource.
Abstract:
A Second Synchronous Signal (SSS) for a 3GPP LTE downlink signal is generated in such a way that a legacy User Equipment (UE) can determine whether the downlink signal comprises a legacy downlink signal or a New Carrier Type (NCT) downlink signal, which is unavailable to a legacy UE. One exemplary embodiment provides that a first binary sequence and a second binary sequence are generated in which the first and second binary sequences are part of the SSS for the downlink signal. The first binary sequence is multiplied by a first scrambling sequence, and the second binary sequence by a second scrambling sequence in which the first and second scrambling sequences are selected to indicate that the downlink signal is a new carrier type downlink signal. Other exemplary embodiments provide that an order of the first and second scrambling sequences indicates whether the downlink signal is a NCT downlink signal.
Abstract:
Technology to provide conditional physical uplink control channel (PUCCH) resource allocation in time division duplex (TDD) for a hybrid automatic retransmission request-acknowledge (HARQ-ACK) transmission in a subframe n is disclosed. In an example, a user equipment (UE) can include computer circuitry configured to: Receive a downlink control channel within a prior specified subframe, wherein the prior specified subframe occurs in time before the subframe n; recognize a downlink control channel type received within the prior specified subframe is a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH); determine a PUCCH resource for the HARQ-ACK transmission using a lowest control channel element (CCE) index of the PDCCH when the received downlink control channel type is the PDCCH; and determine the PUCCH resource for the HARQ-ACK transmission using a lowest enhanced CCE (ECCE) index of the EPDCCH when the received downlink control channel type is the EPDCCH.
Abstract:
Technology for periodic channel state information (CSI) reporting from a user equipment (UE) configured for carrier aggregation is disclosed. One method can include the UE generating a plurality of periodic CSI reports for transmission in a subframe for a plurality of CSI processes, wherein each periodic CSI report corresponds to a CSI process with a CSI process index. A single periodic CSI report from the plurality of periodic CSI reports may be selected to multiplex with a hybrid automatic repeat request-acknowledgement (HARQ-ACK) feedback. The periodic CSI report multiplex with the HARQ-ACK feedback and any scheduling request (SR) may be determined to have a bit size less than or equal to a physical uplink control channel (PUCCH) format 3 maximum payload bit size. The periodic CSI report multiplexed with the HARQ-ACK feedback and any SR may be transmitted to a serving cell.
Abstract:
Embodiments of the present disclosure are directed towards devices and methods for discovering and waking up dormant access nodes in cellular networks. In one embodiment, the user equipment may be configured with information to assist in determining a discovery zone of discovery signals transmitted by cells in a network. In some embodiments, the information may include a duration of a discovery zone.
Abstract:
Embodiments can relate to an apparatus for interference mitigation in a wireless communication. The apparatus can comprise at least one processing element arranged to extract, from a received PDCCH or EPDCCH signal, modulated symbols; the modulated symbols having been modulated using a linear m-ary modulation constellation. The apparatus also comprises a demodulator to demodulate the extracted PDCCH or EPDCCH modulated symbols; the demodulator being operable to demodulate the extracted symbols according to the linear m-ary modulation constellation.