Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for limiting a number of active beams available for communications between a user equipment (UE) and a base station (e.g., to limit the complexity at the UE). In one example, transmission configuration indication (TCI) states may correspond to active beams available for downlink reception that are identified based on configured quasi co-location (QCL) relationships and active QCL assumptions (i.e., the TCI states may include configured QCL relationships and QCL assumptions). Because the TCI states may include configured QCL relationships and active QCL assumptions, the number of active beams available for communications between a UE and a base station may be limited by the number of active TCI states (e.g., where the number of active TCI states may be determined based on a UE capability).

The present invention provides a resource controller for resource management in a telecommunication network, the telecommunication network providing a first set of resources for cellular communication and a second set of resources for direct device-to-device, D2D, communication between UEs, the resource controller comprising a measurement request unit being arranged to request a measurement be performed by at least one user equipment, the measurement indicating a capacity utilization of the second set of resources; and a resource pool adaption unit being arranged to adapt the first set of resources and the second set of resources as a function of the performed measurement. In particular, where no resources are available for D2D communication, a UE may request a bearer setup and in response suitable resources for D2D communication are provided.

The present invention provides a resource controller for resource management in a telecommunication network, the telecommunication network providing a first set of resources for cellular communication and a second set of resources for direct device-to-device, D2D, communication between UEs, the resource controller comprising a measurement request unit being arranged to request a measurement be performed by at least one user equipment, the measurement indicating a capacity utilization of the second set of resources; and a resource pool adaption unit being arranged to adapt the first set of resources and the second set of resources as a function of the performed measurement. In particular, where no resources are available for D2D communication, a UE may request a bearer setup and in response suitable resources for D2D communication are provided.

A communication system can provide an independent mobile cellular network to devices within a covered area. In addition, the system can determine whether user equipment within a covered area of the communication system are to have backhaul access to another communication system and/or whether to adjust the point of presence of the user equipment.

A communication system can provide an independent mobile cellular network to devices within a covered area. In addition, the system can determine whether user equipment within a covered area of the communication system are to have backhaul access to another communication system and/or whether to adjust the point of presence of the user equipment.

A user equipment for communication over a cellular network is configured for simultaneously communicating with one or more cells of first and second nodes of the cellular network, and to methods for operating such user equipments for communication over a cellular network.

Furthermore, a user equipment for communication over a cellular network includes a plurality of base stations which are connected over a xhaul network of the cellular network to a core network of the cellular network, wherein the user equipment is configured for communicating with one of the base stations of the cellular network, which is used as a serving base station, or for communicating with more of the base stations of the cellular network simultaneously, which respectively are used as serving base stations, and to methods for operating such user equipments for communication over a cellular network.

The present disclosure relates to a mobility management in a wireless communications. According to various embodiments, a method performed by a central unit (CU) in a first radio access network (RAN) node in a wireless communication system comprises: establishing a dual connectivity (DC) of the first RAN node and a second RAN node for a wireless device; providing a service to the wireless device in the DC based on a distributed unit (DU) of the first RAN node and a DU of the second RAN node; receiving, from a CU of the second RAN node in the DC, handover information for a handover of the wireless device from the second RAN node to the first RAN node; performing a packet data convergence protocol (PDCP) anchor change from the CU of the second RAN node to the CU of the first RAN node based on the handover information; and transmitting, to the DU of the first RAN node, a message comprising information instructing not to release the DU of the first RAN node after the PDCP anchor change.

The present disclosure relates to a mobility management in a wireless communications. According to various embodiments, a method performed by a central unit (CU) in a first radio access network (RAN) node in a wireless communication system comprises: establishing a dual connectivity (DC) of the first RAN node and a second RAN node for a wireless device; providing a service to the wireless device in the DC based on a distributed unit (DU) of the first RAN node and a DU of the second RAN node; receiving, from a CU of the second RAN node in the DC, handover information for a handover of the wireless device from the second RAN node to the first RAN node; performing a packet data convergence protocol (PDCP) anchor change from the CU of the second RAN node to the CU of the first RAN node based on the handover information; and transmitting, to the DU of the first RAN node, a message comprising information instructing not to release the DU of the first RAN node after the PDCP anchor change.

A base station distributed unit receives, from a wireless device in a radio resource control (RRC) non-connected state, one or more transport blocks via a periodic resource. The base station distributed unit determines an absence of communication with the wireless device. The base station distributed unit sends, to a base station central unit, one or more messages indicating release of the periodic resource based on the absence of communication.

A base station distributed unit receives, from a wireless device in a radio resource control (RRC) non-connected state, one or more transport blocks via a periodic resource. The base station distributed unit determines an absence of communication with the wireless device. The base station distributed unit sends, to a base station central unit, one or more messages indicating release of the periodic resource based on the absence of communication.