An association handling method and device are provided. The method includes: determining one or more TNL addresses of a CU; and establishing multiple TNL associations between a DU and the CU according to the one or more TNL addresses.

An IAB node communicates over at least two radio interfaces including a first interface and a second interface, the first interface being configured to establish a radio resource control (RRC) connection with a donor node, the second interface being configured to serve one or more cells to communicate with one or more child nodes. In an example embodiment and mode the IAB node comprises processor circuitry and transmitter circuitry. The processor circuitry is configured to establish an RRC connection with a first donor node, and perform an update of the RRC connection to be used for a second donor node. The transmitter circuitry is configured to transmit, using the second interface, a re-establishment indication, upon performing the update of the RRC connection. The re-establishment indication is used to request that each of the one or more child nodes initiate an RRC re-establishment procedure. During the RRC re-establishment procedure, the one or more cells are considered as candidate cells.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a central unit (CU) may receive, from a distributed unit (DU), a first DU configuration. The CU may transmit to the DU, a second DU configuration to change a DU configuration from the first DU configuration to the second DU configuration, the first DU configuration being different from the second DU configuration. The DU may override the first DU configuration to communicate in accordance with the second DU configuration. Numerous other aspects are provided.

An IAB node communicates over at least two radio interfaces including a first interface and a second interface, the first interface being configured to establish a radio resource control (RRC) connection with a donor node, the second interface being configured to serve one or more cells to communicate with one or more child nodes. In an example embodiment and mode the IAB node comprises processor circuitry and transmitter circuitry. The processor circuitry is configured to detect a radio link failure (RLF) on the first interface. The transmitter circuitry is configured to transmit, using the second interface, to the one or more child nodes: node serving cell information configured to identify the one or more cells, and; a backhaul RLF indication upon a failure of recovery from the RLF. A method of operating such IAB node is also provided.

An Automated Analysis and Warning of Optical Transmission (AWOT) between BBU unit and RRU of radio transmitting station accurately and quickly identifies errors on an optical transmission line, thereby reducing costs in terms of labor and equipment, and at the same time reducing service downtime of mobile communication systems.

An Automated Analysis and Warning of Optical Transmission (AWOT) between BBU unit and RRU of radio transmitting station accurately and quickly identifies errors on an optical transmission line, thereby reducing costs in terms of labor and equipment, and at the same time reducing service downtime of mobile communication systems.

A processing device that is an edge computer connected to a base station communicatable with a vehicle in a service area includes: a request generation unit generating a first request including location information and a range from the location information specifying a region in which information sharing is requested, and an identifier from which a demander that requests the information sharing is identifiable; an accepted request holding unit holding a second request based on an information sharing demand from another processing device when shared information regarding the region is sendable in response to the second request; and a request location information inquiry unit generating the shared information including a cognitive event and the identifier held in the accepted request holding unit when location information indicating a cognitive event occurrence point acquired from the vehicle via the base station is included in a region specified by the second request information.

There is provided an Open Radio Access Network (O-RAN) that includes a fronthaul interface over which an O-RAN Distributed Unit (O-DU) and an O-RAN Radio Unit (O-RU) communicate with one another and exchange O-RAN standard defined user-plane (U-plane) packets and control-place (C-Plane) packets. The fronthaul interface carries control and management information via management-plane (M-Plane) message exchange, and timing synchronization is achieved in accordance with synchronization-plane (S-Plane) procedures, and the O-RAN accommodates communications via 2G and 3G based mobile networks.

Techniques for determining a registration area are provided. A network entity may receive one or more indications of topology information from one or more radio access network nodes. Each indication of topology information is related to one or more tracking areas and each tracking area is associated with one or more cells in a radio access network served by each of the one or more radio access network nodes. The network entity may determine a registration area based at least in part on the received one or more indications of topology information related to the one or more tracking areas.

A method of operating an Open Radio Access Network (O-RAN) fronthaul interface between O-RAN radio unit (O-RU) and an O-RU controller for controlling the O-RU includes: sending, from the O-RU to the O-RU controller, a message informing whether the O-RU supports Citizens Broadband Radio Service (CBRS) operation; and if so, sending from the O-RU to the O-RU controller a report of capabilities of the O-RU including whether spectrum measurement is supported; if the O-RU supports spectrum measurement, providing an indication the O-RU supports either measurement without grant or measurement with gram from a Spectrum Access System (SAS); and sending from the O-RU to the O-RU controller a Federal Communications Commission certification identification (FCC ID) for the O-RU, Citizens Broadband Radio Service Device (CBSD) category for the O-RU, user registration identification (userId) for CBRS, installation parameters, grouping parameters, and/or a call sign device identifier provided by the FCC.