Abstract: There is provided a method to operate a downstream IAB, Integrated Access and Backhaul, node of an IAB network, is provided, wherein the method comprises: receiving a first radio resource configuration that indicates a use of radio resources by the upstream IAB node and by at least one radio node served by the upstream IAB node; determining a second radio resource configuration or the downstream IAB node in dependence on the first radio resource configuration; and communication with at least one radio node, which is served by the downstream IAB node, via radio resources according to the second radio resource configuration.

Abstract: Systems, methods, apparatuses, and computer program products for the synchronization and timing of IAB nodes are provided. One method may include determining, at a parent node, a resource configuration and using the determined resource configuration to set a timing advance (TA) mode with two offsets comprising a first offset to be used with time division multiplexing (TDM) and a second offset to be used with at least one of spatial division multiplexing (SDM) or frequency division multiplexing (FDM). The method may also include transmitting a command, to an integrated access and backhaul (IAB) node, to start adjusting mobile termination (MT) uplink (UL) transmission (Tx) timing based on the resource configuration and the timing advance (TA).

Abstract: Methods, apparatuses, and computer program products for synchronization in a network are provided. One method includes configuring a first node for joining a first synchronization group with a second node on a lowest stratum, receiving at least one synchronization signal comprising information on at least an identity of the second node, and synchronizing the first node to the first synchronization group based on the synchronization signal.

Abstract: Systems, methods, apparatuses, and computer program products for supporting or providing wireless backhauling are provided.

Abstract: According to an example of an embodiment, a method is provided including transmitting, from a base station to a user equipment, at least one message indicative of a starting resource and an ending resource of a resource allocation, wherein the at least one message comprises: a resource indication value indicating an index of the starting resource corresponding to either a first resource allocation granularity or a second resource allocation granularity different from the first resource allocation granularity, a number of contiguously allocated resources following the starting resource, and at least one of: an offset value related to the first resource allocation granularity; and a truncation indication for indicating whether the user equipment is to truncate the resource allocation; and communicating, by the base station, data in accordance with the starting resource and the ending resource.

Abstract: It is determined that a first feedback for a first downlink data transmission is to be sent (or received) in a subframe n. If it is further determined that a second feedback for a second downlink data transmission is to be sent (or received) in a first slot of the subframe n, the first feedback is transmitted (or received) within a predetermined short transmission time interval within the first slot. As an addition, if it is further determined there is no second downlink data for which corresponding feedback is to be sent (or received) in the first slot of the subframe n, the first feedback is transmitted (or received) in at least the first slot.

Abstract: According to an example of an embodiment, a method is provided including transmitting, from a base station to a user equipment, at least one message indicative of a starting resource and an ending resource of a resource allocation, wherein the at least one message comprises: a resource indication value indicating an index of the starting resource corresponding to either a first resource allocation granularity or a second resource allocation granularity different from the first resource allocation granularity, a number of contiguously allocated resources following the starting resource, and at least one of: an offset value related to the first resource allocation granularity; and a truncation indication for indicating whether the user equipment is to truncate the resource allocation; and communicating, by the base station, data in accordance with the starting resource and the ending resource.

Abstract: Disclosed herein are methods, computer program instructions and apparatus for performing random access procedures in a wireless communication system. A method includes receiving at a network access node, in different time and frequency resources that are allocated for preamble transmission, and in different ones of a plurality of component carriers, a plurality of random access requests from individual ones of a plurality of user equipments; and transmitting a corresponding plurality of random access responses in a time and frequency resource of a single component carrier.

Abstract: Systems, methods, apparatuses, and computer program products for the synchronization and timing of IAB nodes are provided. One method may include determining, at a parent node, a resource configuration and using the determined resource configuration to set a timing advance (TA) mode with two offsets comprising a first offset to be used with time division multiplexing (TDM) and a second offset to be used with at least one of spatial division multiplexing (SDM) or frequency division multiplexing (FDM). The method may also include transmitting a command, to an integrated access and backhaul (IAB) node, to start adjusting mobile termination (MT) uplink (UL) transmission (Tx) timing based on the resource configuration and the timing advance (TA).

Abstract: In accordance with an example embodiment of the present invention, a method comprising: receiving an indication of a timing difference over a wireless backhaul link, the indication received at a first node in a wireless communication system and received from a second node in the wireless communication system, the timing difference between a first time at which the second node received uplink signal on the wireless backhaul link from the first node and a second time at which the second node transmitted downlink signal on the wireless backhaul link to the first node; determining by the first node a new timing advance based on a current timing advance and on the received timing difference; and using the determined new timing advance for one or more transmissions by the first node over one or more wireless links.

Abstract: Disclosed herein are methods, computer program instructions and apparatus for performing random access procedures in a wireless communication system. A method includes receiving at a network access node, in different time and frequency resources that are allocated for preamble transmission, and in different ones of a plurality of component carriers, a plurality of random access requests from individual ones of a plurality of user equipments; and transmitting a corresponding plurality of random access responses in a time and frequency resource of a single component carrier.

Abstract: Various communication systems may benefit from reliable random access. For example, fifth generation (5G) wireless communication systems may benefit from a coordinated reliable random access technique based on common random access channel resources for a quality of service aware multi-connectivity link. A method can include preparing a random access message at a user equipment. The method can also include transmitting the random access message from the user equipment on a shared resource. The shared resource can include a resource, such as a random access channel, known by a plurality of access nodes or shared by a plurality of access nodes.

Abstract: Disclosed herein are methods, computer program instructions and apparatus for performing random access procedures in a wireless communication system. A method includes receiving at a network access node, in different time and frequency resources that are allocated for preamble transmission, and in different ones of a plurality of component carriers, a plurality of random access requests from individual ones of a plurality of user equipments; and transmitting a corresponding plurality of random access responses in a time and frequency resource of a single component carrier.

Abstract: In accordance with an example embodiment of the present invention, a method comprising: receiving an indication of a timing difference over a wireless backhaul link, the indication received at a first node in a wireless communication system and received from a second node in the wireless communication system, the timing difference between a first time at which the second node received uplink signal on the wireless backhaul link from the first node and a second time at which the second node transmitted downlink signal on the wireless backhaul link to the first node; determining by the first node a new timing advance based on a current timing advance and on the received timing difference; and using the determined new timing advance for one or more transmissions by the first node over one or more wireless links.

Abstract: It is determined that a first feedback for a first downlink data transmission is to be sent (or received) in a subframe n. If it is further determined that a second feedback for a second downlink data transmission is to be sent (or received) in a first slot of the subframe n, the first feedback is transmitted (or received) within a predetermined short transmission time interval within the first slot. As an addition, if it is further determined there is no second downlink data for which corresponding feedback is to be sent (or received) in the first slot of the subframe n, the first feedback is transmitted (or received) in at least the first slot.

Abstract: Systems, methods, apparatuses, and computer program products for supporting or providing wireless backhauling are provided.

Abstract: Disclosed herein are methods, computer program instructions and apparatus for performing random access procedures in a wireless communication system. A method includes receiving at a network access node, in different time and frequency resources that are allocated for preamble transmission, and in different ones of a plurality of component carriers, a plurality of random access requests from individual ones of a plurality of user equipments; and transmitting a corresponding plurality of random access responses in a time and frequency resource of a single component carrier.

Abstract: According to an example of an embodiment, a method is provided including transmitting, from a base station to a user equipment, at least one message indicative of a starting resource and an ending resource of a resource allocation, wherein the at least one message comprises: a resource indication value indicating an index of the starting resource corresponding to either a first resource allocation granularity or a second resource allocation granularity different from the first resource allocation granularity, a number of contiguously allocated resources following the starting resource, and at least one of: an offset value related to the first resource allocation granularity; and a truncation indication for indicating whether the user equipment is to truncate the resource allocation; and communicating, by the base station, data in accordance with the starting resource and the ending resource.

Abstract: Various communication systems may benefit from reliable random access. For example, fifth generation (5G) wireless communication systems may benefit from a coordinated reliable random access technique based on common random access channel resources for a quality of service aware multi-connectivity link. A method can include preparing a random access message at a user equipment. The method can also include transmitting the random access message from the user equipment on a shared resource. The shared resource can include a resource, such as a random access channel, known by a plurality of access nodes or shared by a plurality of access nodes.

Abstract: Disclosed herein are methods, computer program instructions and apparatus for performing random access procedures in a wireless communication system. A method includes receiving at a network access node, in different time and frequency resources that are allocated for preamble transmission, and in different ones of a plurality of component carriers, a plurality of random access requests from individual ones of a plurality of user equipments; and transmitting a corresponding plurality of random access responses in a time and frequency resource of a single component carrier.