A system, apparatus, method, and non-transitory computer readable medium for implementing a fault-tolerant multi-NRF network topology may include a network repository function (NRF) device including: at least one processor configured to execute computer readable instructions to cause the NRF device to, broadcast a NRF query to a NRF cluster of a core network, the NRF cluster including a plurality of NRF devices located in a public land mobile network (PLMN); receive NRF query responses from each NRF device of the NRF cluster, the NRF query responses including network configuration information of each NRF device; determine a status of each NRF device based on the network configuration information; determine a list of network function (NF) devices registered with the NRF cluster; receive a NF query request from a first NF device; and transmit a NF query response to the first NF device.

An information indication method and apparatus, terminal device, and network device are provided, said method comprising: a terminal device receiving first indication information or second indication information, said first indication information being used for indicating a first action of the terminal device when a secondary cell group (SCG) is in a deactivated state, said second indication information being used for indicating a second action of the terminal device when the SCG is in an activated state.

A cell measurement method. According to the method, a terminal device determines that a first cell as a camped cell of the terminal device; and then determines that the terminal device is in a target environment. The terminal device further obtains a signal strength of the first cell and performs a measurement on a second cell when the signal strength of the first cell is less than a first threshold and greater than a second threshold. The second cell determined by the terminal device based on the target environment. The terminal device switches the camped cell of the terminal device from the first cell to the second cell when a measurement result of the second cell meets a handover condition.

Various embodiments comprise systems, methods, and apparatus for a radio access network (RAN) Network Repository Function (RNRF) configured to receive gNB feature/capability information from gNB formed by network RAN, store the received gNB feature/capability information, and provide gNB feature/capability information to requesting core network nodes or functions so that these nodes/functions may adapt/configure their operation or the services they provide in response to the gNB capabilities.

Various embodiments comprise systems, methods, and apparatus for a radio access network (RAN) Network Repository Function (RNRF) configured to receive gNB feature/capability information from gNB formed by network RAN, store the received gNB feature/capability information, and provide gNB feature/capability information to requesting core network nodes or functions so that these nodes/functions may adapt/configure their operation or the services they provide in response to the gNB capabilities.

The present disclosure describes methods, systems, and devices for updating configuration information for a downstream device of a migrating integrated access backhaul node (IAB-node) during an inter-donor migration from a source IAB-donor to a target IAB-donor. The method includes providing, by an IAB-donor central unit (CU), updated configuration information into system information which is contained in a system information block (SIB) other than SIB1 carried in a SystemInformation (SI) message, and encoding the system information with the updated configuration information. The method also include sending, by the IAB-donor CU, the system information including the updated configuration information as a radio resource control (RRC) container to a migrating IAB-node distributed unit (DU) via F1-AP. The method further includes the migrating IAB-node DU forwards the system information including the updated configuration information through a dedicated RRC message to the downstream device.

The present disclosure describes methods, systems, and devices for updating configuration information for a downstream device of a migrating integrated access backhaul node (IAB-node) during an inter-donor migration from a source IAB-donor to a target IAB-donor. The method includes providing, by an IAB-donor central unit (CU), updated configuration information into system information which is contained in a system information block (SIB) other than SIB1 carried in a SystemInformation (SI) message, and encoding the system information with the updated configuration information. The method also include sending, by the IAB-donor CU, the system information including the updated configuration information as a radio resource control (RRC) container to a migrating IAB-node distributed unit (DU) via F1-AP. The method further includes the migrating IAB-node DU forwards the system information including the updated configuration information through a dedicated RRC message to the downstream device.

A 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate after a 4th generation (4G) communication system such as long-term evolution (LTE). A method may be performed by an intelligent controller may, and include obtaining first information related to user equipment (UE) identity of an open (O)-RAN from an E2 node, obtaining second information related to the UE identity from a network exposure function (NEF) of a 5th generation (5G) core network (5GC), generating an A1 policy message through comparison based on the first information and the second information, and transmitting the A1 policy message to a near-real time (RT) radio access network (RAN) intelligent controller (RIC) via an A1 interface, the first information may include a general public subscription identifier (GPSI), an access and mobility management function (AMF) UE NGAP ID related to the 5GC and a globally unique AMF ID (GUAMI) related to the 5GC, and the second information may include an AMF UE NGAP ID related to the 5GC and a GUAMI related to the 5GC.

A measurement configuration method, a terminal, and a network side device are provided. The measurement configuration method is performed by the terminal and includes: receiving indication information transmitted by a first network side device, where the indication information is used to indicate a signal that changes in a target cell; and performing measurement or synchronization based on the signal that changes, where the target cell includes a serving cell or a neighboring cell, and the signal that changes includes at least one of a reference signal or a synchronization signal.

This application provides network device capacity expansion methods and devices. One method includes: obtaining network performance data of a target network device, determining a state of the target network device based on the network performance data of the target network device, and determining, based on the state of the target network device, whether to perform capacity expansion for the target network device. In the foregoing technical solution, whether a capacity expansion operation needs to be performed on a network device can be determined in a timely manner based on a state of the network device.