A method and apparatus are provided, in which a service link path delay relative to a first leg of a communication path of a communication between the user equipment and a network entity via a relay entity is estimated (602), where the first leg corresponds to a portion of the communication path between the user equipment and the relay entity. A feeder link path delay relative to a second leg of the communication path is determined (604), where the second leg corresponds to a portion of the communication path between the relay entity and the network entity, based upon at least a received signaling indication. A timing advance value is calculated (606), based upon the service link path delay and the feeder link path delay. An uplink transmission timing of the user equipment is adjusted (608), based upon the calculated timing advance value.

A method and an apparatus for paging in a wireless communication system are provided. The method includes determining, by a radio access network (RAN) node, information for paging, where the information for paging includes information for paging a User Equipment (UE) which is related to a synchronization signal block (SSB) beam; and paging, by the RAN node, the UE in an idle state or inactive state, based on the information for paging. The method can page a UE more accurately.

Embodiments are directed towards systems and methods for a 5G PRB blanking system with 5G end user mobile devices to prevent interference with satellite signal transmission. One such method includes: configuring a 5G network to enable reversing an original direction of transmission upon request from a 5G end user mobile device; receiving a request to use a specified frequency at a specified time to communicate with the satellite; enabling the base station to stop download transmissions on specified frequency tones at the specified time; creating frequency notches at the specified time that are available for a 5G end user mobile device to upload to the satellite; and facilitating upload transmissions from a 5G end user mobile device to the satellite in the frequency notches at the specified time.

The present disclosure relates to communication methods and apparatuses. In an example method, a terminal device determines that a first duration needs to be obtained, determines the first duration, and determines a timing advance amount based on the first duration, where the timing advance amount is used for communication between the terminal device and a network device. The terminal device may determine the first duration based on a requirement of the terminal device. In addition, the terminal device may also calculate, based on an auxiliary parameter from the network device, the timing advance amount that changes with time.

A method, system and apparatus are disclosed. A method in a wireless device (WD) configured to communicate with a network node of a non-terrestrial network (NTN) using a connection via one or more cells served by the network node is described. The method includes receiving, from the network node, information usable to perform one or more actions associated with maintaining the connection via the one the one or more cells and performing the one or more actions associated with maintaining the connection via the one the one or more cells based at least in part on the received information. The one or more actions include selecting one or more cells in advance of a radio link failure associated with the connection.

Systems and methods are provided for managing connection to a non-terrestrial network (NTN). The system determines whether wireless devices are within the NTN coverage, and the detected devices are configured to enter a low-energy consumption mode. The system periodically checks for any required updates to the wireless devices, such as firmware/software updates or security patches. If an update is necessary, a message is sent to the wireless devices to switch the device from the low-energy consumption mode to a setup mode. An update is sent to the device via the NTN, and, upon reception of the update, the processor executes the required update on the corresponding wireless device. Once the desired update is made, the device is instructed to reenter the low-energy consumption mode, and the device modification is registered.

The present disclosure provides methods and apparatuses for broadcasting and receiving broadcast information, and an electronic device, which relate to the technical field of satellite communication. The present disclosure firstly determines an edge area and a non-edge area of a coverage area of a current serving cell; then sends first broadcast information to the edge area and sends second broadcast information to the non-edge area, and the first broadcast information includes a set of system information related to a neighbor cell of the serving cell and a set of other information unrelated to the neighbor cell of the serving cell; and the second broadcast information includes the set of other information and excludes the set of system information.

A method, network node and wireless device (WD) for measurement and mobility procedures due to doppler issues in an Internet of things (IoT) non-terrestrial network (NTN) are disclosed. According to one aspect, a method in a WD includes determining at least one neighbor cell and at least one frequency layer for which a measurement procedure is to be adapted due to Doppler shift. The method includes adapting the measurement procedure for the at least one neighbor cell and the at least one frequency layer, including at least one of deprioritizing, discarding, ignoring and skipping measurements on at least one of a neighbor cell of the determined at least one neighbor cell and a frequency layer of the determined at least one frequency layer.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Embodiments herein disclose methods for managing energy usage in a wireless network (1000) by a network apparatus (200). The method includes sending a configuration message including at least one CSI-RS port muting information to a UE (100) in a wireless network (1000) for indicating to the UE (100) about a muted CSI-RS port to control a UE measurement of CSI using a CSI-RS signal. Further, the method includes controlling the energy usage in the wireless network (1000) based on the configuration message comprising the CSI-RS port muting information and a subsequent UE measurement report.

Various solutions for time and frequency in non-terrestrial network (NTN) communications are proposed. An apparatus implemented in a user equipment (UE) obtains a center frequency and a reference time of a non-terrestrial network. The apparatus further obtains a feeder link delay of a feeder link between a network node and a satellite, and a service link delay drift rate of a service link between the apparatus and the satellite. Then, the apparatus performs an uplink frequency pre-compensation through calculating an uplink transmit frequency according to the center frequency, the reference time, the feeder link delay, and the service link delay drift rate.