Abstract: Apparatuses, methods, and systems are disclosed for burst-based transmission scheduling. One apparatus includes a processor and a memory that stores code executable by the processor. The code, in various embodiments, determines multiple consecutive uplink subframes to be transmitted from a user equipment. In a further embodiment, the code forms an uplink grant message to schedule transmission of the multiple consecutive uplink subframes. The apparatus may include a transmitter that provides the uplink grant message to the user equipment.

Abstract: Apparatuses, methods, and systems are disclosed for interlace determination. One apparatus includes a processor that determines a system bandwidth including multiple interlaces. Each interlace of the multiple interlaces includes a set of physical resource blocks (“PRBs”) that are uniformly spaced in frequency. The processor also determines a first set of interlaces of the multiple interlaces for a first device. The first set of interlaces includes one or more interlaces. The apparatus includes a transmitter that transmits a first signal to the first device. The first signal indicates the first set of interlaces, and a number of bits of the first signal is less than a number of interlaces of the multiple interlaces.

Abstract: Apparatuses, methods, and systems are disclosed for non-orthogonal communication. One apparatus includes a transmitter that transmits a first signal to a first device for indicating a first resource in a control region of a carrier bandwidth. The first resource is used by the first device for transmitting first control information, and the first control information includes first non-orthogonal layer information. The apparatus also includes a receiver that receives the first control information from the first resource, and receives first data in a data region of the carrier bandwidth. The data region includes multiple non-orthogonal layers. The apparatus includes a processor that decodes the first control information, and decodes the first data based on the first control information.

Abstract: Apparatuses, methods, and systems are disclosed for reference signal sequence determination. One apparatus includes a processor that determines an RS sequence for transmission. The RS sequence includes three symbols determined by the following equation: ru(n)=ej?(n)?/4. The RS sequence includes: a first RS sequence, wherein ru(n) is the first RS sequence, n=0 to 2, ?(0)=?3, ?(1)=?3, and ?(2)=?1; or a second RS sequence, wherein ru(n) is the second RS sequence, n=0 to 2, ?(0)=?3, ?(1)=1, and ?(2)=1. The apparatus also includes a transmitter that transmits the RS sequence on a time-frequency resource.

Abstract: Apparatuses, methods, and systems are disclosed for cell-specific reference signal generation. One apparatus includes a processor that determines a NB-IoT CRS frequency offset. The processor may determine a first CRS sequence based on the NB-IoT CRS frequency offset. The processor may also determine a first time-frequency resource set. The apparatus may also include a transmitter that transmits the first CRS sequence on the first time-frequency resource set.

Abstract: Apparatuses, methods, and systems are disclosed for flexible uplink/downlink transmissions. One apparatus includes a processor and a memory that stores code executable by the processor. The code, in various embodiments, includes code that determines a frame period length for communication with a user equipment. In a further embodiment, the code includes code that determines an uplink/downlink split pattern to use with the determined frame period length. In certain embodiments, the code includes code that forms at least one message indicating the frame period length and the uplink/downlink split pattern. The apparatus may include a transmitter that provides the at least one message to the user equipment.

Abstract: Apparatuses, methods, and systems are disclosed for CSI reporting. One apparatus includes a processor that determines a priority for each channel state information (“CSI”) report of multiple CSI reports. In certain embodiments, the priority for each CSI report is determined based on each of a CSI report type, a serving cell, a CSI process identification (“ID”), and a CSI subframe set of the CSI report. In various embodiments, the processor determines one or more CSI reports of the multiple CSI reports to be transmitted in a subframe based at least partly on the priority for each CSI report. In certain embodiments, the processor selects a channel for transmitting the one or more CSI reports in the subframe. In various embodiments, the apparatus includes a transmitter that transmits the one or more CSI reports using the selected channel in the subframe.

Abstract: Apparatuses, methods, and systems are disclosed for collision avoidance. One apparatus includes a processor that detects energy in a detection slot within a first time period over a first frequency resource of a transmission resource unit (“TRU”). The TRU includes the first time period, a second time period contiguous in time with the first time period, a second frequency resource, and a third frequency resource contiguous in frequency with the second frequency resource. The energy is below a predetermined threshold. The apparatus also includes a transmitter that transmits a time-contiguous signal after the detection slot until an end of the first time period over the first frequency resource. The transmitter transmits data within the second time period over the third frequency resource. The transmitter transmits a scheduling assignment (“SA”) within the second time period over the second frequency resource. The SA includes information related to the data.

Abstract: Apparatuses, methods, and systems are disclosed for contention window size adjustment. One apparatus includes a transmitter that transmits data on a carrier to a set of devices in a first transmission burst having a duration of at least one subframe. In some embodiments, the set of devices includes one or more devices. In various embodiments, the apparatus includes a receiver that receives feedback information from each device. In certain embodiments, the apparatus includes a processor that determines, based on the feedback information, whether interference above a predetermined level exists on the carrier during the first transmission burst at each device, adjusts a contention window size based on the determination of whether interference above the predetermined level exists on the carrier during the first transmission burst at each device, and determines a value N between a predetermined minimum contention window size and the adjusted contention window size.

Abstract: Apparatuses, methods, and systems are disclosed for carrier determination. One apparatus includes a processor that determines a first carrier of multiple carriers for a first device to transmit control information. The apparatus also includes a transmitter that transmits, to the first device, a first physical control signal indicating the first carrier, wherein the first physical control signal further indicates an interlace index for transmitting control information. The apparatus includes a receiver that receives control information from the first device on the first carrier.

Abstract: Apparatuses, methods, and systems are disclosed for alleviating congestion during random access of enhanced machine-type communications user equipment. One apparatus includes a radio transceiver that communicates over a mobile telecommunications network and a processor configured to: transmit a physical random access channel (PRACH) preamble on a first time-frequency resource, monitor a second time-frequency resource for a first downlink (DL) grant scheduling a random access response (RAR) corresponding to the transmitted PRACH preamble on a third time-frequency resource, receive the RAR on the third time-frequency resource, transmit a message on a fourth time-frequency resource, wherein the fourth time-frequency resource is determined based on the RAR; determine a fifth time-frequency resource based on a time-frequency resource index, wherein the RAR includes the time-frequency resource index, and monitor the fifth time-frequency resource for a second DL grant scheduling a contention resolution message.

Abstract: A mobile communication system includes at least one mobile terminal that can access a circuit switched network and a wireless broadband network, and a node apparatus. The node apparatus integrates, into one physical node, a first gateway node interconnecting the circuit switched network and an IP network and a second gateway node interconnecting a core network accommodating the wireless broadband network and an external packet data network. When the mobile terminal performs handover from one of the circuit switched network and the wireless broadband network to the other network, one of the first gateway node and the second gateway node, being a handover-destination node, allocates call connection path node identification information managed by the other gateway note being a handover-source node, as new call connection path node identification information of the handover-destination node.

Abstract: Apparatuses, methods, and systems are disclosed for determining a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook. One apparatus includes a processor and a memory that stores code executable by the processor. The code, in various embodiments, determines a set of aggregated serving cells. The code groups the aggregated serving cells into a set of cell groups. In a further embodiment, the code determines, for an uplink subframe, a set of subframes for which a corresponding HARQ-ACK is to be transmitted in the uplink subframe. The code receives a cell-domain downlink assignment indicator and a cell-domain total assignment indicator in each downlink control information scheduling a physical downlink shared channel. The code additionally determines a HARQ-ACK codebook for each combination of a cell group and a subframe. The apparatus may include a transmitter that receives the downlink control information.

Abstract: Apparatuses, methods, and systems are disclosed for data acknowledgment. One apparatus includes a transmitter that transmits data to a device. The apparatus may include a processor that determines a response window having multiple subframes for receiving an acknowledgement corresponding to the data. The apparatus may include a receiver that receives the acknowledgement within the response window.

Abstract: It would be to provide a method which will work with future versions of LTE-A, be backwards compatible and alleviate interference to signals for basic system operation. The method includes generating one or more Reference Signals associated with the one or more Channel Quality Indicators, and includes mapping the one or more Channel Quality Indicator-Reference Signals to the last symbol of the second slot of the one or more subframes.

Abstract: Apparatuses, methods, and systems are disclosed for efficient RE usage in CCEs. One apparatus includes a processor that determines a control channel frequency region including a set of CCEs in a TTI. Each CCE of the set of CCEs includes a set of REs. The processor determines a subset of CCEs of the set of CCEs not used for transmission of control information. The apparatus includes a receiver that receives data on the REs in the subset of CCEs.

Abstract: Apparatuses, methods, and systems are disclosed for triggering transmissions using a location. One apparatus includes a processor that determines reference location information. The processor also determines current location information. The processor determines whether a trigger is satisfied using the reference location information and the current location information. The apparatus also includes a transmitter that transmits the current location information in response to the trigger being satisfied.

Abstract: Systems and methods provide for an increase in hearability by a user equipment (UE, 116). This increase in hearability can be used to improve positioning results. Two different types of positioning subframes can be transmitted by cells in a radio access network (RAN) to improve hearability: measurement subframes and low-interference subframes. The selection of which type of positioning subframe to transmit can be determined algorithmically by the transmitting entity.

Abstract: Apparatuses, methods, and systems are disclosed for uplink/downlink scheduling. One apparatus includes a processor and a memory that stores code executable by the processor. The code, in various embodiments, determines an uplink schedule for data to be transmitted from a user equipment. In a further embodiment, the code determines a downlink schedule for data to be provided to the user equipment. The apparatus may include a transmitter that provides an uplink grant message to the user equipment to initiate an uplink transmission based on the uplink schedule. In certain embodiments, the uplink schedule and the downlink schedule are determined without using a predefined split pattern for uplink and downlink transmission.

Abstract: Apparatuses, methods, and systems are disclosed for flexible uplink/downlink transmissions. One apparatus includes a processor and a memory that stores code executable by the processor. The code, in various embodiments, includes code that determines a frame period length for communication with a user equipment. In a further embodiment, the code includes code that determines an uplink/downlink split pattern to use with the determined frame period length. In certain embodiments, the code includes code that forms at least one message indicating the frame period length and the uplink/downlink split pattern. The apparatus may include a transmitter that provides the at least one message to the user equipment.