Abstract: Embodiments herein disclose e.g. a method performed by a wireless device (10) for handling communication for the wireless device in a second wireless communication network. The second wireless communication network coexists with a first wireless communication network on a same bandwidth in frequency, wherein the first wireless communication network applies a first shift in frequency in uplink transmissions. The wireless device receives from a radio network node (12, 13), an indication indicating application of a second shift in frequency to uplink transmissions in case the second wireless communication network uses Frequency Division Duplex (FDD). The wireless device further applies the second shift in frequency to uplink transmissions, wherein the second shift defines a shift in frequency to a subcarrier relative to a subcarrier grid of the second wireless communication network or a shift in frequency to the subcarrier grid of the second wireless communication network.

Abstract: Coordinated multi-point transmission of user data from a first cell serving a wireless terminal and a neighboring second cell site is performed. The first cell site maps control signals and user data to time-frequency resources according to a first mapping pattern. The second cell site maps control data and traffic data to time-frequency resources according to a second mapping pattern. A wireless terminal extracts user data according to the first mapping pattern and detects a control element transmitted by the first cell site. The control element indicates that user data associated with the control element is mapped to the time-frequency resources according to the second mapping pattern. In response, the wireless device extracts user data according to the second mapping pattern from time-frequency resources of a second transmission for the wireless terminal transmitted from the second cell site.

Abstract: There is disclosed a method of operating a network node in a radio access network, the method includes transmitting a resource allocation message comprising a bit field, the resource allocation message being transmitted for reception in a common search space to which a first bandwidth part with a first unit size of resource allocation is associated. The bit field allocates resources in a second bandwidth part with a second unit size of resource allocation. The disclosure also pertains to related devices and methods.

Abstract: Systems and methods for positioning in a cellular communications system are disclosed. A method performed by a first base station (BS) includes receiving a signal transmitted by a second BS and estimating a Time of Arrival (TOA) of the received signal at the first BS according to a clock of the first BS. The method further includes determining a delta value that is or is a function of a time between the TOA of the received signal at the first BS according to the clock and a time reference at the first BS and either (a) providing the delta value to a positioning estimation entity within the communications system or (b) using the delta value at the first BS to reduce a time synchronization error between the first BS and the second BS, or (c) passing the delta value to a User Equipment.

Abstract: To configure uplink sounding signal transmission in a wireless communication network, sets of configuration parameters for uplink sounding signal transmissions are determined for a given mobile terminal. Each of the sets of configuration parameters comprises a priority, a frequency-domain parameter and a time-domain parameter. The sets of configuration parameters are transmitted to the mobile terminal, thereby configuring the mobile terminal to generate different sounding signals and use the priorities to select from among the different sets of configuration parameters in the event of a sounding signal transmission collision.

Abstract: A method, performed by a first node (111). The method is for handling access to a communications network (100) in a multi-hop deployment. The first node receives (305), from a fourth node (114), information. The information indicates a recommendation on which node within radio range to connect to, out of a plurality of candidate parent nodes (120). The plurality comprises a first set (121) and a second set (122) of candidate parent nodes. A third node (113) is enabled to be a donor node in the first set (121). A sixth node (116) is enabled to be a donor node in the second set (122). The first node also determines (307), out of the plurality, a second node (112) to establish a connection with. The determining (307) is based on the received information. The first node then initiates (308) establishment of a connection or re-connection to the network via the second node (112), as first-hop.

Abstract: Systems and methods for reducing signaling overhead between an Integrated Access and Backhaul (IAB) node and its parent node when switching between timing alignment cases are disclosed. In some embodiments, the method comprises sending one or more sets of desired numbers of guard symbols for two or more timing switching groups, respectively. The method further comprises receiving one or more sets of provided numbers of guard symbols for the two or more timing switching groups, respectively and determining available time resources for uplink transmission and/or downlink reception in two adjacent time units based on one of the one or more sets of provided numbers of guard symbols for one of the two or more timing switching groups that corresponds to timing alignment cases used in the two adjacent time units.

Abstract: According to some embodiments, an integrated access and backhaul, IAB, network node comprises an IAB distributed unit, DU, and an IAB mobile termination, MT. A method performed by the IAB network node comprises receiving an availability indication at the IAB-MT, determining an IAB-DU soft resource availability based on the received availability indication, and transmitting or receiving according to the determined IAB-DU soft resource availability.

Abstract: Systems and methods are provided for performing a random access procedure over a radio interface such as, for example, between a mobile terminal and a radio base station of a mobile network. For example, a method includes the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources.

Abstract: Mechanisms for efficient transmission of large amount of download data from a base station to a user equipment in a multi-carrier that minimizes power consumption on the user equipment are described. When multiple component carriers are to be used to transmit the download data, the base station informs the user equipment. The base station transmits on the anchor carriers without wait after informing the user equipment and transmits on the non-anchor carriers after waiting a predetermined delay. The predetermined delay provides time to allow the user equipment to activate the receiving resources and be ready to receive the download data over the non-anchor carriers. In this manner, the user equipment can be in a power conservation mode and activate the receiver resources only when needed.

Abstract: Embodiments of the present disclosure provide methods and apparatus for scatterer localization and material identification. The method performed by an identification apparatus may comprise: determining (S101) a reflection loss of a power of a wireless signal caused by a reflection at an object, for the purpose of identifying a material of the object and localizing a position of the object. The method performed by a reception apparatus may comprise: receiving (S201) a wireless signal transmitted from a transmission apparatus and reflected by an object; and transmitting (S202), to an identification apparatus, information about the wireless signal. The method performed by a transmission apparatus may comprise: receiving (S301) an indication for identifying a material of an object; and transmitting (S302) a wireless signal reflected by the object to a reception apparatus.

Abstract: There is disclosed a method of operating a network node in a radio access network. The method includes operating on a carrier based on a received BS-to-BS interference indication. The disclosure also pertains to related devices and methods.

Abstract: To configure uplink sounding transmissions by mobile terminals in a wireless communication network, sets of configuration parameters for uplink sounding signal transmissions are determined for a given mobile terminal. Each of the sets of configuration parameters comprising frequency-domain and/or time-domain parameters. The sets of configuration parameters are transmitted to the mobile terminal, thereby enabling the mobile terminal to generate different sounding signals used by the wireless communication network to estimate different properties associated with at least one of uplink signals and uplink channels.

Abstract: A method, system and apparatus are disclosed. In one or more embodiments, a network node configured to communicate with a wireless device (WD) is provided. The network node configured to, and/or including a radio interface and/or including processing circuitry configured to: receive information indicating a timing offset (T??), determine transmission timing for downlink transmission based on the timing offset (T??) and at least one estimated timing value, and perform downlink transmission based on the determine transmission timing.

Abstract: A user equipment is configured with at least two collections of uplink resources to be used for transmitting control information to a communication network. The UE receives an assignment of radio resources to be used for receiving a downlink transmission from a base station of the communication network. The UE receives an acknowledgement resource indication, ARI, indicating one of the configured collections of uplink resources to be used for transmitting control information associated with the DL transmission. Further, the UE transmits the control information to the base station on at least a subset of the indicated collection of UL resources. In example embodiments, the indicated collection of uplink resources comprises a plurality of selectable uplink resource sets. The control information is transmitted on one of the uplink resource sets which corresponds to an operational state of the communication network.

Abstract: A method in a network node for managing random-access procedures with a plurality of wireless devices. The method comprising transmitting an indication of a modulation format to one or more of the plurality of wireless devices to configure the modulation format for a random access message 3 transmission from the one or more wireless devices.

Abstract: A modulation technique, such as for example either Pi/2 BPSK or QPSK, is selected for transmission, based on a characteristic of the data to be transmitted, or the physical channel over which it is to be transmitted. The data characteristic may be the coding rate, or characteristics indirectly related to the coding rate, such as the number of coded bits or number of uncoded bits (payload size). The physical channel characteristic may for example be the physical channel bandwidth, the physical channel length, a number of physical channel modulation symbols, a number of the physical channel resource elements used for the data to be transmitted, or a number of the physical channel modulation symbols carrying the data to be transmitted.

Abstract: Embodiments include methods performed by an integrated access backhaul (IAB) node configured for operation in an IAB network. Such methods include receiving, from an upstream node in the IAB network, first timing offset information related to communications between the IAB node and the upstream node. Such methods include transmitting a downlink (DL) signal to one or more downstream nodes in the IAB network. The DL signal is transmitted according to a DL transmission timing determined from the following: the IAB node's DL reception timing of a DL signal received from the upstream node; and a second timing value determined based on a first function of the first timing offset information, when the first function of the first timing offset information is greater than a threshold. Other embodiments also include IAB nodes configured to perform such methods.

Abstract: There is disclosed a method of operating a user equipment in a radio access network, the user equipment being configured with a set of bandwidth parts, the user equipment being operable for communicating utilising an activated bandwidth part of the set of bandwidth part.

Abstract: The present disclosure pertains to a terminal for a Radio Access Network, the terminal being adapted for transmission based on a first frequency division multiple access (FDMA) technology and for transmission based on a second frequency division multiple access technology. The terminal is adapted for transmitting reference signaling having a comb structure for transmission based on either the first FDMA technology or the second FDMA technology. The disclosure also pertains to related devices and methods.