A system that determines to modify transmission power of a first small cell: determines an effect of modifying transmission power of the first small cell on a user equipment that is served by the first small cell; and controls modifying the transmission power of the first small cell based on the determination to modify the transmission power and the determined effect of modifying the transmission power on the user equipment that is served by the first small cell.

The present application relates to the communications field, and discloses a network device addressing method, device, and system to achieve network device addressing. A specific implementation method includes: constructing, by an interworking function IWF, a host name of a mobility management network element according to an integrated services digital network ISDN number of the mobility management network element; sending, by the IWF, a request message to a home subscriber server HSS, where the request message includes the host name of the mobility management network element; and after receiving a response message sent by the HSS, acquiring, by the IWF, an ISDN number of the HSS according to a host name of the HSS, and sending the ISDN number of the HSS to the mobility management network element.

The present application relates to the communications field, and discloses a network device addressing method, device, and system to achieve network device addressing. A specific implementation method includes: constructing, by an interworking function IWF, a host name of a mobility management network element according to an integrated services digital network ISDN number of the mobility management network element; sending, by the IWF, a request message to a home subscriber server HSS, where the request message includes the host name of the mobility management network element; and after receiving a response message sent by the HSS, acquiring, by the IWF, an ISDN number of the HSS according to a host name of the HSS, and sending the ISDN number of the HSS to the mobility management network element.

A first base station transmits to a second base station a first message. The first message comprises at least one parameter indicating the wireless device supports configuration of a plurality of cell groups. The first base station receives from the second base station a second message comprising first configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group. The first base station transmits, to the wireless device, a third message comprising the first configuration parameters.

A first base station transmits to a second base station a first message. The first message comprises at least one parameter indicating the wireless device supports configuration of a plurality of cell groups. The first base station receives from the second base station a second message comprising first configuration parameters of a plurality of cells grouped into a first plurality of cell groups comprising a first cell group and a second cell group. The first base station transmits, to the wireless device, a third message comprising the first configuration parameters.

A method for communication beam transition in a communication system includes exchanging information between a first communication device and a second communication device on a first communication beam, receiving beam information from the second communication device on the first communication beam, sending from the first communication device a beam switch command on the first communication beam, the beam switch command requesting a transition from the first communication beam to a second communication beam, simultaneously sending information from the first communication device to the second communication device on the first communication beam and the second communication beam, and ceasing sending information from the first communication device to the second communication device on the first communication beam when transition to the second communication beam is completed by the first communication device and the second communication device.

A communication system dynamically controls a User Equipment (UE) handover for multiple repeaters linked in series that include a source repeater and target repeater. The communication system determines individual UE loading for each of the multiple repeaters. The communication system modifies a handover threshold between the source repeater and the target repeater based on the UE loading for each of the multiple repeaters in the series. The communication system serves the UE over the source repeater and applies the modified handover threshold to a signal strength difference between the source repeater and the target repeater. The communication system inhibits the UE handover from the source repeater to the target repeater if the signal strength difference for the UE falls below the modified handover threshold and initiates the UE handover from the source repeater to the target repeater if the signal strength difference for the UE reaches the modified handover threshold.

A communication system dynamically controls a User Equipment (UE) handover for multiple repeaters linked in series that include a source repeater and target repeater. The communication system determines individual UE loading for each of the multiple repeaters. The communication system modifies a handover threshold between the source repeater and the target repeater based on the UE loading for each of the multiple repeaters in the series. The communication system serves the UE over the source repeater and applies the modified handover threshold to a signal strength difference between the source repeater and the target repeater. The communication system inhibits the UE handover from the source repeater to the target repeater if the signal strength difference for the UE falls below the modified handover threshold and initiates the UE handover from the source repeater to the target repeater if the signal strength difference for the UE reaches the modified handover threshold.

Access, mobility management and regulatory services are supported for satellite access to a 5G core network. A coverage area, e.g., a country or region, is divided into fixed virtual cells and fixed tracking areas. The UE receives configuration information for fixed cells and fixed tracking areas associated with a serving PLMN. The fixed cells and the fixed tracking areas are defined, independently of each other, as fixed geographic areas. A position of the UE is used to determine a fixed serving cell and/or fixed tracking area for the UE. A service operation for the UE is enabled for the serving PLMN based on the fixed serving cell or the fixed tracking area. A fixed cell may be associated with an overlapping fixed tracking area by assigning a color code to the tracking area and appending the color code to an ID for the fixed cell.

The present disclosure describes methods and apparatus for detecting handover failures at an AP when the AP does not have an X2 interface with at least one of its neighbors. For example, methods are provided for detecting handover failures at an AP based on at least on a UE context release command message received from a mobile management entity (MME) and/or determining that a radio resource control (RRC) connection reconfiguration (RCR) message is not delivered to the UE.