Abstract: A base station transmits a resource grant indicating a plurality of options from which a wireless device is permitted to select for use in transmitting user data on an uplink during random access. Each respective option comprises a transport block size (TBS) and a number of repetitions. One of the TBSs is a maximum permitted TBS and the other TBSs are derived from the maximum permitted TBS using a predefined set of smaller TBS values. The number of repetitions of each option is determined as a function of the maximum permitted TBS and a corresponding number of repetitions. The wireless device receives the resource grant and transmits the user data on the uplink during random access to the base station according to at least one of the options. The base station receives the user data on the uplink during random access correspondingly.

Abstract: Systems and methods for efficient signaling Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) for an uplink data transmission are disclosed. In some embodiments, a method of signaling HARQ-ACK feedback for an uplink data transmission sent from a wireless device to a radio network node comprises obtaining HARQ-ACK feedback for the uplink data transmission, encoding the obtained HARQ-ACK feedback on to an unused bit combination of a field in a downlink control channel, and transmitting the downlink control channel to the wireless device. Embodiments of the present disclosure enable wireless device power saving using positive HARQ-ACK feedback without increasing the static downlink control signaling overhead and without reducing coverage for downlink control information.

Abstract: A method and network node for flexible indication of resources in LTE-M using bitmaps are disclosed. According to one aspect, a method includes indicating to the wireless device a set of reserved resources for machine communications in compatibility with a broadband radio access technology sharing resources in a time frame and frequency band that encompasses the set of reserved resources, the indicating using a two level bitmap operating in the time-domain, a first bitmap level of the two level bitmap indicating a first set of subframes containing reserved resources, and a second bitmap level of the two level bitmap indicating reserved symbols within an indicated subframe.

Abstract: Systems and methods for selecting subcarriers to be used for sub-Physical Resource Block (PRB) transmission and, in some embodiments, for mapping Demodulation Reference Signals (DMRS) to resources on the selected subcarriers are disclosed. In some embodiments, a method of operation of a radio node for providing sub-PRB transmission comprises selecting two adjacent subcarriers from a set of three allocated subcarriers that are allocated for a sub-PRB transmission that uses Single Carrier Frequency Division Multiple Access (SC-FDMA) Pi/2 Binary Phase Shift Keying (BPSK) modulation using only two adjacent subcarriers out of the set of three allocated subcarriers with Discrete Fourier Transform (DFT) spread length of 2. In some embodiments, the selection is such that the selected adjacent subcarriers varies, e.g., from one cell to another. In doing so, interference is distributed.

Abstract: A base station (110) enables a wireless device (120) (e.g., user equipment) to transmit user data on an uplink (130) during random access. The base station (110) transmits a resource grant indicating a plurality of options from which the wireless device (120) is permitted to select for use in transmitting the user data on the uplink (130) during random access. Each respective option comprises a transport block size; and a number of resource units and/or physical resource blocks. The wireless device (120) receives the resource grant, and transmits the user data on the uplink (130) during random access to the base station (110) according to at least one of the options.

Abstract: Systems and methods for transmission and reception of a wake-up signal having a determined maximum length that is related to a maximum repetition value of another signal are disclosed. Embodiments of a method in a wireless device for determining a maximum length of a wake-up signal representing a maximum duration of the wake-up signal, the WUSmax value being related to a maximum repetition value representing a maximum number of repetitions of signals transmitted by a network node in a cellular communications network are disclosed. In some embodiments, the method in the wireless device includes receiving a Rmax value from the network node, determining a WUSmax value based on the Rmax value, and attempting to detect a wake-up signal from the network node using the determined WUSmax value.

Abstract: Embodiments disclosed herein relate to a method in a wireless communication device that operates in an enhanced coverage mode, the enhanced coverage mode comprising sequential repetition of messages sent from the wireless communication device to a network node. An example method includes: receiving a Timing Advance Command TAC from the network node; and adapting a time at which the TAC is applied, wherein a time difference between the time at which the TAC is applied and a time at which the TAC is received shall be greater than or equal to a specified time depending on a type of the used Radio Access Technology, such that application of the TAC does not occur during a period after a first subframe of a repeated uplink transmission till the end of the repeated uplink transmission.

Abstract: Systems and methods for specifying content of carrier measurement reports in a cellular communication system are disclosed. Embodiments of a method performed by a wireless device are disclosed. In some embodiments, the method performed by the wireless device includes transmitting a random access preamble, receiving, from a base station, a random access response, and transmitting, to the base station, a Msg3 comprising one or more quality reports for one or more carriers or narrowbands, each of the one or more quality reports comprising at least one of a value that is indicative of a number of repetitions to be used for physical downlink control channel transmissions to the wireless device on the one or more carriers or narrowbands and an aggregation level. Some embodiments include transmitting, to a base station, an uplink message including the one or more quality reports for the one or more carriers or narrowbands.

Abstract: A base station and wireless device are configured to support TDD operation. In exemplary embodiments, the base station or UE can make use of the available symbols in the DwPTS or UpPTS of a special subframe respectively for NB-IoT transmissions. In one example, the base station can use OFDM symbols in the DwPTS to repeat in a predetermined manner some of the symbols transmitted in an immediately preceding downlink subframe, or in a succeeding downlink subframe. In other embodiments, the UE can use symbols in the UpPTS to repeat in a predetermined manner some of the symbols transmitted in the immediately succeeding uplink subframe, or in a preceding uplink subframe. The symbols repeated in the special subframe can be coherently combined at the receiver with corresponding symbols transmitted in a downlink or uplink subframe to improve decoding performance, reduce errors, improve channel estimation, and increase system capacity.

Abstract: Enabling a UE to determine whether the UE can skip the acquisition of SIB1-BR. An indication (e.g., a one bit flag) in the MIB is provided, which indication is set to a particular value if the UE needs to read SIB1-BR, otherwise the indication is set to a different value indicating that the UE can skip reading SIB1-BR assuming other conditions are met (e.g., assuming that the UE has previously read SIB1-BR within a MIB indication time period).

Abstract: A network node (110), a wireless device (120) and methods therein, for enabling the wireless device (120) to obtain configuration information from a multicast control channel, e.g. SC-MCCH, which is transmitted by the network node (110). The network node (110) transmits an indication of change of the multicast control channel, wherein the indication further indicates whether the wireless device (120) is affected by the change and needs to acquire or obtain the multicast control channel or not. The network node (110) further transmits the multicast control channel as changed according to said indication. Thereby, the wireless device (120) can decide to obtain and acquire the multicast control channel only if it is affected by the change and to refrain when not affected, which will reduce the consumption of energy in the wireless device (120).

Abstract: A user equipment is configured for operation in a narrowband wireless communication system. The user equipment is configured to detect receipt of a narrowband positioning reference signal that comprises a narrowband reference signal sequence. The narrowband reference signal sequence is a subsequence of a wideband reference signal sequence. The wideband reference signal sequence is configured for a wideband frequency bandwidth that is wider than a maximum frequency bandwidth defined for the narrowband wireless communication system. The user equipment is also configured to perform a positioning measurement using the narrowband positioning reference signal.

Abstract: According to some embodiments, a method performed by a wireless device operating in connected mode for reporting channel quality comprise: determining that aperiodic channel quality reporting has been triggered for the wireless device and transmitting a downlink channel quality report to a network node. A channel quality in the report is represented by a number of repetitions used to receive a channel. In particular embodiments, the number of repetitions comprises a number of repetitions used to receive a machine type communication (MTC) physical downlink control channel (MPDCCH) or a narrowband Internet-of-things (NB-IoT) physical downlink control channel (NPDCCH).

Abstract: Methods and apparatuses of resource allocation for wireless communication are presented. In an example, a user equipment may contain radio circuitry and processing circuitry such that the user equipment is configured to obtain a set of multiple indices, where each index in the set of multiple indices corresponds to a different uplink resource allocation from a set of uplink resource allocations formed from twelve contiguous subcarriers. In an aspect, the set of uplink resource allocations includes an allocation of the twelve contiguous subcarriers, two allocations of six contiguous subcarriers, four allocations of three contiguous subcarriers, and twelve allocations of a single subcarrier. In a further aspect, the user equipment can receive an index indication corresponding to an index from the set of multiple indices from the base station. Also, the user equipment can transmit data to the base station using the resource allocation corresponding to the received index indication.

Abstract: The present disclosure relates to methods and devices for synchronizing one or more radio devices with a radio access node. A method of providing synchronization with a radio access node for radio communication to one or more radio devices is disclosed. The method comprises or triggers transmitting a configuration message to at least one of the radio devices, where the configuration message is indicative of a synchronization signal configuration for a configurable synchronization signal. The method further comprises or triggers transmitting the configurable synchronization signal to the at least one radio device in accordance with the synchronization signal configuration and communicating one or more decodable signals between the radio access node and the at least one radio device using radio resources in accordance with the configurable synchronization signal. A corresponding method of synchronizing the radio device with the radio access node for radio communication is disclosed.

Abstract: According to one aspect of the disclosure, a wireless device is configured to transmit a random access preamble. The wireless device includes processing circuitry. The processing circuitry is configured to obtain a tone index, and determine a location within a frequency band for transmitting the random access preamble based on the obtained tone index.

Abstract: A method, wireless device and network node for supporting sub-physical resource block transmissions over a physical uplink shared channel, PUSCH, are disclosed. According to one aspect, a method includes receiving an indication of a number of resource units to be used for performing sub-PRB transmissions over the PUSCH. The method further includes mapping the number of RUs to a number of physical resource blocks, PRBs and determining a transport block size, TBS, for a sub-PRB transmission over the PUSCH, based on the mapping of the number of RUs to the number of PRBs. The method also includes transmitting sub-PRB transmissions over the PUSCH according to the determined TBS on the number of RUs.

Abstract: UEs are configured to transmit feedback related to data received on a multicast traffic channel on dedicated resources. Network nodes are configured to retransmit the data based on the received feedback.

Abstract: Systems and methods for handling transmissions and retransmissions on a periodic preconfigured uplink resource (PUR) are provided. Respective resources for transmission and retransmission can be determined and configured for a wireless device to prevent blocking of a new data transmission on a PUR opportunity by a retransmission attempt. Responsive to determining that a first transmission on the PUR was unsuccessful, a second resource can be configured for the retransmission.

Abstract: Embodiments include methods, performed by a network node in a wireless network, for signaling resynchronization signal (RSS) configurations of neighbor cells to one or more user equipment (UEs). Such methods include encoding a plurality of parameters of respective RSS configurations of one or more neighbor cells. For each particular neighbor cell, the parameters can include one or more RSS frequency locations and an RSS time offset for the particular neighbor cell, and the encoding can be based on a bitmap and a parameter associated with the particular neighbor cell (e.g., a physical cell ID). Such methods also include transmitting, to the one or more UEs, at least a portion of the encoded parameters of the respective RSS configurations of the neighbor cells. Embodiments also include complementary methods performed by UEs, as well as network nodes and UEs configured to perform such methods.