Abstract: There is disclosed a method of operating an Integrated Access and Backhaul, IAB, parent node for a wireless communication network. The method includes transmitting, to an Integrated Access and Backhaul, IAB, child node, an indication of the availability of soft frequency resources. The disclosure also pertains to related methods and devices, e.g. pertaining to an Integrated Access and Backhaul child node, or a program product.

Abstract: Systems and methods for configuration of Integrated Access and Backhaul (IAB) frequency-domain resource utilization are disclosed. In one embodiment, a method performed by a network node that implements a centralized network function unit for frequency-domain resource utilization configuration of an IAB node comprises determining a configurable frequency part size(s) for a frequency-domain resource utilization configuration of an IAB node and determining a mode of frequency-domain resource utilization for each of at least some of a plurality of frequency parts of an available bandwidth of the IAB node, the available bandwidth being divided into the plurality of frequency parts in accordance with the configurable frequency part size(s). The method further comprises sending the frequency-domain resource utilization configuration to the IAB node.

Abstract: A method in a communication network. The method includes a first network node receiving a first combined signal comprising a first message transmitted by a first UE and a second message transmitted by a second UE. The method includes the first network node decoding the first message. The method includes the first network node using a backhaul link to transmit the decoded first message to a second network node that receives a second combined signal comprising the first message and a third message transmitted by a third UE.

Abstract: A method, system and network node are disclosed. According to one or more embodiments, a parent network node configured to communicate with a network node is provided. The parent network node is configured to, and/or includes a radio interface and/or includes processing circuitry configured to: enable a first timing configuration, wherein the first timing configuration enables downlink transmission timing for the network node to be aligned with the downlink transmission timing of the parent network node; and based on the first timing configuration, switch to a second timing configuration, wherein the second timing configuration enables uplink transmission timing of the network node to be aligned with the downlink transmission timing of the network node.

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: A network function unit (e.g., an Integrated Access and Backhaul-donor node Central Unit, IAB-donor-CU 300, an Operations Administration and Maintenance node, OAM node, or a parent node 200) configures space-domain resources in an IAB-node 100 (e.g., an IAB-Distribution Unit DU 110) with different resource sets. Each resource set may restrict certain behavior (e.g., the operation of the access unit) of the IAB-node in terms of transmission and/or reception in a certain spatial radio resource, e.g., the one or more direction units (e.g., a radio beam).

Abstract: The present disclosure relates to a serving wireless communication node adapted to predict data files (A, B, C) to be requested by at least two served user terminals (2, 3) and to form predicted sub-data files (A1, A2; B1, B2; C1, C2). In a placement phase, the serving node is adapted to transmit predicted sub-data files (A1, B1; A2, B2) to cache nodes (APC1, APC2), each cache node (APC1, APC2) having a unique set of predicted different sub-data files of different predicted data files, and to receive requests (RA, RB) for data files from the served user terminals (2, 3). In a delivery phase, the serving node is adapted to transmit an initial complementary predicted sub-data file (Formula I) to the cache nodes (APC1, APC2), comprising a reversible combination of the remaining predicted sub-data files (A2, B1) for the files requested.

Abstract: A method, system and apparatus are disclosed. According to one or more embodiments, an integrated access and backhaul, IAB, node including an IAB-mobile termination, MT, and an IAB-distributed unit, DU is provided. The IAB node includes processing circuitry configured to determine at least one multiplexing condition associated with a multiplexing capability where the multiplexing capability is associated at least with a capability of performing simultaneous communications by the IAB-MT and IAB-DU, and transmit, to a another IAB node, information associated with the determined at least one dynamic multiplexing condition.

Abstract: Systems and methods are disclosed for Integrated Access and Backhaul (IAB) hierarchical Distributed Unit (DU) resource configuration. In one embodiment, a method performed by an IAB node comprises determining a first multiplexing capability of the IAB node at a first time, sending information that is indicative of the first multiplexing capability of the IAB node to an IAB donor node, and receiving a first resource configuration profile from the IAB donor node. The method further comprises determining a second actual multiplexing capability of the IAB node at a second time that is subsequent to the first time and determining a valid resource configuration for the IAB node based on the second actual multiplexing capability of the IAB node. The method further comprises scheduling transmission on one or more child backhaul links and/or one or more access links of the IAB node based on the valid resource configuration.

Abstract: A first type node (AP0, AP1, AP2) in a wireless communication system (1), wherein the first type node (AP0, AP1, AP2) is adapted to: —communicate with at least one other first type node (AP0, AP1, AP2) in the wireless communication system (1) over a corresponding channel (hA01, hA12), and —transmit a first plurality of signals (x11, x1i, X1N, X21, X2i, X2N?1) to the other first type node (AP0, AP1, AP2).

Abstract: A method and network node having integrated access and backhaul (IAB) functionality are disclosed. According to one aspect, a network node determines information concerning at least one of: (i) an impairment of a first signal from a first integrated access backhaul node that is caused by a second signal from a second IAB node and (ii) an impairment of the second signal that is caused by the first signal. The network node further selects a multiplexing capability for the network node based at least in part on the determined information concerning at least one of the impairments and further multiplexes signals for the first and second IAB nodes using the selected multiplexing capability.

Abstract: A method, system and apparatus are disclosed for power control between integrated access and backhaul (IAB) nodes. In one embodiment, a first node is provided. The first node includes processing circuitry configured to transmit a power control request to a parent, integrated access and backhaul, IAB, node where the power control request is configured to request an adjustment of a transmission power of the parent IAB node, receive a power control response from the parent IAB node, and perform at least one action associated with a second node based at least in part on the power control response.

Abstract: The present disclosure relates to a first type node in a wireless communication system, wherein the first type node is adapted to: communicate with at least one other first type node in the wireless communication system over a corresponding channel receive a plurality of signals, each signal being associated with a corresponding decoding error probability, from the other first type node estimate the decoding error probability for each signal sort the signals in a decoding order according to the estimated decoding error probability, decode the signals one at the time from the lowest estimated decoding error probability to the highest estimated decoding error probability until decoding for a certain signal is determined to have failed, request re-transmission of the signal for which decoding has been determined to have failed, and to request re-transmission of all signals having higher decoding error probability than the signal for which decoding has been determined to have failed.

Abstract: Embodiments include methods for an integrated access backhaul (IAB) node configured to communicate with first and second parent nodes in a wireless network. Such methods include determining the IAB node's multiplexing capability between a first parent link with the first parent node and a second parent link with the second parent node, and sending an indication of the multiplexing capability to one or more ancestor nodes in the wireless network. Other embodiments include complementary methods for the first parent node and an IAB donor centralized unit (CU) configured to communicate with the IAB node via at least the first parent node. Other embodiments include IAB nodes and IAB donor CUs configured to perform such methods.

Abstract: The present disclosure relates to a method and an apparatus for multiple access transmission. The method includes: determining (S401) a first signature allocated to a first transmission; and determining (S402) a second signature allocated to a second transmission. With hopping of the signature, the successful rate of NOMA transmission in the communication system will be improved.

Abstract: An adaptive receiver for UEs using NOMA-based schemes. One objective is to improve the achievable rate of the weak UE and improve the fairness among the grouped UEs. At the same time, an embodiment gives the chance to reduce the error probability of the strong UE. Thus, compared to conventional NOMA, an embodiment increases the network sum throughput.

Abstract: The present disclosure relates to a serving wireless communication node (AP1) in a wireless communication system (1), wherein the serving node (AP1) is adapted to determine that a served user terminal (2) is going to enter a zone (3) that switches between being reachable and unreachable for the serving node (AP1), and to predict data (xm+1 . . . xn) to be transmitted to the user terminal (2) for at least a part of the time the user terminal (2) is in the zone (3) and is unreachable for the serving node (AP1). When the zone (3) is reachable, the sewing node (AP1) is adapted to transfer predicted data (xm+1 . . . xn) to a cache node (APC) positioned within the zone (3), enabling the cache node (APC) to transfer the predicted data (xm+1 . . . xn) to the user terminal (3) when the user terminal (2) is in the zone (3) and is unreachable for the serving node (AP1).

Abstract: The present disclosure relates to a serving wireless communication node adapted to predict data files (A, B, C) to be requested by at least two served user terminals (2, 3) and to form predicted sub-data files (A1, A2; B1, B2; C1, C2). In a placement phase, the serving node is adapted to transmit predicted sub-data files (A1, B1; A2, B2) to cache nodes (APC1, APC2), each cache node (APC1, APC2) having a unique set of predicted different sub-data files of different predicted data files, and to receive requests (RA, RB) for data files from the served user terminals (2, 3). In a delivery phase, the serving node is adapted to transmit an initial complementary predicted sub-data file (Formula I) to the cache nodes (APC1, APC2), comprising a reversible combination of the remaining predicted sub-data files (A2, B1) for the files requested.

Abstract: A method (600) in a network comprising a control node, a first access node, and a second access node, wherein there is a first link between the control node and the first access node and there is a second link between the first access node and the second access node, and wherein the second access node provides network access to a non-priority UE. The method includes the control node determining that a priority UE is attempting to establish a connection with the network. The method also includes, after determining that the priority UE is attempting to establish a connection with the network, the control node prioritizing at least the first link for the priority UE. The method also includes the control node determining an alternate link to the second access node for use in carrying traffic to and/or from the non- priority UE to which the second access node provides access, wherein the alternate link does not include the first link between the control node and the first access node.

Abstract: Methods and nodes in an integrated access and backhaul (IAB) network. A method in a node in an IAB network for selecting a preferred route from a plurality of candidate routes for sending data from a first node to a second node in the IAB network is provided. Each candidate route includes at least one intermediate node between the first node and the second node. The method includes, for each candidate route, determining a predicted transmission delay associated with sending the data along the respective candidate route based on channel measurements between nodes along the respective candidate route and an error probability constraint, wherein the transmission delay is predicted for a transmission of the data that satisfies the error probability constraint in view of the channel measurements. The method further selecting a route from the plurality of candidate routes for sending the data based on the predicted transmission delays.