Abstract: A first and second UE are connected via a PC5 unicast link. Both maintain a list of potential Side link relay UEs and agree on a common list of UEs that appear in both lists. When the first UE detects that the second UE has trouble receiving it's transmission, e.g. ack/nack timeout or high level of NACKs, decide to use a third UE from the common list as Side Link relay towards the second UE.

Abstract: A method in a user equipment (UE) (210, 1000, 1100) is disclosed. The method comprises determining (902) that a paging message has been received or that a radio resource control (RRC) state of the UE has changed. The method comprises using (904) a normal measurement mode (105) for a period of time after the paging message has been received or the RRC state of the UE has changed. The method comprises determining (906), based on one or more criteria being satisfied, to enter a relaxed measurement mode (110) after the period of time.

Abstract: A Wireless Device (WD), a network node and corresponding methods are disclosed. The WD comprises processing circuitry and a memory, the WD being adapted to obtain a Cell Global Identity (CGI) of a target cell within a first time period if the target cell transmits System Information (SI) where the fields other than frame numbers do not change in different transmission periods over a certain period of time, and otherwise, to obtain the CGI of the target cell within a second time period longer than the first time period. The WD is adapted to use information as to whether or not the target cell is going to transmit Quasi-Stationary SI (QSI) to select a first or a second SI acquisition procedure to obtain the CGI of the target cell within the first time period if QSI is transmitted, or within a second time period is non QSI is transmitted.

Abstract: A device-to-device (D2D) user equipment (UE) apparatus identifies at least first and second synchronization reference (SyncRef) UEs each satisfying a predetermined selection/reselection criterion with respect to the D2D UE, determines a measurement period in which to perform one or more measurements on the identified at least first and second SyncRef UEs, and performs the one or more measurements on each of the identified at least first and second SyncRef UEs during the determined measurement period.

Abstract: There is disclosed a method performed by a wireless device for performing active bandwidth part switching, the method comprising: performing a first active bandwidth part switching on a first link for the wireless device; determining that a second active bandwidth part switching on a second link for the wireless device is to be performed while the first active bandwidth part switching is ongoing; and adapting at least one of the first and second active bandwidth part switching based on a rule.

Abstract: A method in a user equipment (UE) (210, 1000, 1100) is disclosed. The method comprises determining (902) that a paging message has been received or that a radio resource control (RRC) state of the UE has changed. The method comprises using (904) a normal measurement mode (105) for a period of time after the paging message has been received or the RRC state of the UE has changed. The method comprises determining (906), based on one or more criteria being satisfied, to enter a relaxed measurement mode (110) after the period of time.

Abstract: A wireless device (12) “relaxes” the radio-signal measurements it makes with respect to a wireless communication network (10), in the context of using those measurements to determine whether a current Timing Advance, TA, value remains valid for use in transmitting on preconfigured uplink resources, PUR, of the wireless communication network (10). Relaxation refers to the length of the interval between making new measurements. According to techniques herein, the wireless device (12) operates according to an imposed limit on the extent or degree of relaxation, to ensure or at least improve the reliability of the radio measurements with respect to validation of the TA value. Determination of the extent of relaxation occurs at the wireless device (12) or at a supporting network node (22) of the wireless communication network (10).

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: A method performed by a wireless device for monitoring a radio link with a base station is disclosed. The method comprises performing a measurement on at least one reference signal received from a base station (1202) and converting a result of the measurement to a BLER of a hypothetical Downlink Control Channel transmission from the base station using a mapping (1204). The method further comprises comparing the converted result to at least one threshold to determine whether the wireless device is in synchronization with the base station (1206), triggering a measurement event on the basis of the comparison (1208), and selecting, on the basis of the triggered measurement event, a mapping for use in a subsequent conversion of a measurement result (1210). Also disclosed are a method performed by a base station, a wireless device, a user equipment and a base station.

Abstract: Methods and systems for signaling Supplementary Activity Configuration (SAC) for lean carrier operation are provided. According to one aspect, a method performed by a wireless device for lean carrier operation during which Cell-specific Reference Signals (CRSs) are transmitted by a base station using a reduced bandwidth during an inactive time of a Discontinuous Reception (DRX) mode of operation excluding a Warm Up (WU) period that occurs immediately before a DRX active time and a Cool Down (CD) period that occurs immediately after a DRX active time, comprises: determining a number M of subframes to comprise a WU period; determining a number N of subframes to comprise a CD period; and transmitting an indication of the determined numbers M and N to a base station currently serving the wireless device.

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: A method performed by a user equipment (UE) served in a first cell includes determining within a time period that at least one criteria is met for triggering acquiring a Cell Global Identity (CGI) in a second cell. The UE determines within the time period that at least one second criteria is met for triggering a cell change from a source cell to a target cell. The wireless device obtains information comprising a prioritization of one of the acquiring the CGI and the cell change over the other one of acquiring the CGI and the cell change. Based on the information comprising the prioritization, the wireless device performs one of acquiring the CGI in the second cell or the cell change from the source cell to the target cell.

Abstract: A method by a wireless device includes receiving a message from a radio access network, RAN, node serving the wireless device including an indication of failure of a clear channel assessment, CCA, procedure by the RAN node on a wireless channel, and adapting a serving cell procedure in response to the message. A method by a RAN node, includes performing a CCA on a downlink channel, determining based on the CCA whether or not the downlink channel is occupied, and transmitting a message to a wireless device including an indication of a CCA failure based on a determination that the downlink channel was occupied. Related wireless devices and network nodes are disclosed.

Abstract: One embodiment provides a method performed by a wireless device. The method comprises: receiving, from a network node, a configuration message comprising an indication of preconfigured radio resources for uplink transmissions; obtaining a synchronization status of the wireless device with respect to the network node; and adapting use of the preconfigured radio resources based on the synchronization status of the wireless device with respect to the network node.

Abstract: When a wireless device obtains a request for a random access in a cell, based on information relating to at least one type of reference signal, it selects at least one type of reference signal. The wireless device then performs a measurement in said cell using the selected type or types of reference signal. Based on a result of the measurement, the wireless device selects a coverage enhancement level, and it then sends a random access message to the cell using radio resources associated with the selected coverage enhancement level.

Abstract: Exemplary embodiments include methods and/or procedures for operating a wireless device (420, 1210) in communication with a first network node. Exemplary embodiments include receiving (902), from the first network node, an indication of at least one repetition method used in a broadcast channel transmitted by a second network node (401, 1260), wherein the repetition method comprises: a first portion of an information block in first resources of the broadcast channel that are reserved for the information block; and a second portion of the information block, comprising at least a subset of the first portion, in second resources of the broadcast channel that are different from the first resources. Exemplary embodiments also include receiving (904) the broadcast channel transmitted by the second network node, and decoding (906) the information block by combining the first portion and the second portion.

Abstract: Systems and methods for narrowband measurements and reporting in a cellular communications system are disclosed. Embodiments of a method performed by a wireless device are disclosed. In some embodiments, the method performed by the wireless device comprises determining a set of narrowbands on which to perform measurements, wherein the set of narrowbands on which to perform measurements is a subset of all narrowbands within a respective system bandwidth. The method further comprises performing measurements on the set of narrowbands during one or more time periods associated with a random access procedure, and reporting the measurements or information derived from the measurements to a base station within a message sent from the wireless device to the base station during the random access procedure. In some embodiments, the message sent from the wireless device to the base station during the random access procedure is a Msg3.

Abstract: A method of receiving a wake-up signal from a network node is performed by a wireless device. The method includes determining provided coverage enhancement level with respect to the network node, determining an activity level of the wireless device, determining a required wake-up signal reception effort, wherein the wake-up signal reception effort includes an amount of the redundancy of the wake-up signal being exploited at reception, based at least the coverage enhancement level and the activity level, and receiving a wake-up signal based on the determined reception effort. A wireless device having a wake-up receiver capable of receiving a wake-up signal from a network node and a computer program for implementing the method in the wireless device are also disclosed.

Abstract: According to certain embodiments, a method for use in a wireless device comprise determining a coverage level with respect to a serving cell, selecting one of a plurality of configurations for sharing gaps between intra- and inter-frequency measurements, and performing one or more measurements according to the selected configuration for sharing gaps. The configuration for sharing gaps is selected based at least in part on the determined coverage level. For example, certain embodiments use the determined coverage level to select one of a plurality of tables, wherein each table comprises one or more schemes that indicate how to share gaps between intra- and inter-frequency measurements.

Abstract: According to certain embodiments, a method in a wireless device includes determining a current coverage enhancement, CE, mode of the wireless device with respect to a first cell and determining an estimated signal quality of the wireless device with respect to the first cell. If the current CE mode is a normal CE mode and the estimated signal quality of the wireless device with respect to the first cell is greater than or equal to an upper threshold, the wireless devices continues to operate in the normal CE mode. If the current CE mode is an enhanced CE mode and the estimated signal quality of the wireless device with respect to the first cell is greater than or equal to a lower threshold and less than the upper threshold, the wireless device continues to operate in the enhanced CE mode.