A method and apparatus for selecting a NR cell in a mobile communication system are provided. Method for selecting a NR cell includes selecting, by a terminal, a first cell, acquiring, by the terminal in the first cell, a MIB, acquiring, by the terminal in the first cell, a SIB1 based at least in part on a first information in the MIB, considering, by the terminal, the first cell as barred, performing, by the terminal a first operation group if the SIB1 received in the first cell does not include a intraFreqReselection and performing, by the terminal a second operation group if the SIB1 received in the first cell includes the intraFreqReselection and the second intraFreqReselection is set to NotAllowed.

A method and apparatus for selecting a NR cell in a mobile communication system are provided. Method for selecting a NR cell includes selecting, by a terminal, a first cell, acquiring, by the terminal in the first cell, a MIB, acquiring, by the terminal in the first cell, a SIB1 based at least in part on a first information in the MIB, considering, by the terminal, the first cell as barred, performing, by the terminal a first operation group if the SIB1 received in the first cell does not include a intraFreqReselection and performing, by the terminal a second operation group if the SIB1 received in the first cell includes the intraFreqReselection and the second intraFreqReselection is set to NotAllowed.

A communication apparatus includes an acquisition unit (551) acquiring information from a base station apparatus, a determination unit (552) determining whether a connected base station apparatus is a non-ground station or a ground station based on the acquired information, and a communication controller (553) executing communication control for the non-ground station when it is determined that the connected base station apparatus is the non-ground station.

Provided in embodiments of the disclosure are a method and apparatus for cell selection or reselection, and a terminal. The method includes that: a terminal performs cell selection or cell reselection based on first information, the first information being Non-Public Network (NPN) related information.

The present disclosure provides a method and an apparatus for random access in a wireless communication system, as well as a user terminal. The method includes: receiving indication information transmitted from a radio base station, the indication information instructing a user terminal to initiate a random access; determining a target Physical Random Access Channel (PRACH) resource from available resources based on a current coverage level and resource information carried in the indication information, the target PRACH resource being used for transmitting a PRACH signal for initiating the random access; and re-determining, in response to a failure to initiate the random access over the target PRACH resource, the target PRACH resource from the available resources based on an updated coverage level and the resource information, and transmitting the PRACH signal over the re-determined target PRACH resource. The present disclosure can solve the technical problem in the related art associated with low success rate of random accesses initiated by radio base stations.

The present disclosure provides a method and an apparatus for random access in a wireless communication system, as well as a user terminal. The method includes: receiving indication information transmitted from a radio base station, the indication information instructing a user terminal to initiate a random access; determining a target Physical Random Access Channel (PRACH) resource from available resources based on a current coverage level and resource information carried in the indication information, the target PRACH resource being used for transmitting a PRACH signal for initiating the random access; and re-determining, in response to a failure to initiate the random access over the target PRACH resource, the target PRACH resource from the available resources based on an updated coverage level and the resource information, and transmitting the PRACH signal over the re-determined target PRACH resource. The present disclosure can solve the technical problem in the related art associated with low success rate of random accesses initiated by radio base stations.

Certain aspects of the present disclosure provide techniques for configuring parameters for small data transfer (SDT) transmissions. One example technique provides a method for wireless communications at a user equipment (UE), involving: obtaining configuration information received from a network entity, the configuration information indicating a plurality of configurations for small data transfer (SDT) transmission, determining at least one of a transport block size (TBS) or data threshold for SDT transmission based on one of the configurations, and outputting for transmission one or more SDT transmissions based on the determination.

Certain aspects of the present disclosure provide techniques for configuring parameters for small data transfer (SDT) transmissions. One example technique provides a method for wireless communications at a user equipment (UE), involving: obtaining configuration information received from a network entity, the configuration information indicating a plurality of configurations for small data transfer (SDT) transmission, determining at least one of a transport block size (TBS) or data threshold for SDT transmission based on one of the configurations, and outputting for transmission one or more SDT transmissions based on the determination.

Apparatuses and methods for band scanning in lean carrier operation are disclosed. In one embodiment, a method for a network node includes identifying at least one time period for transmitting a reference signal over a full cell bandwidth in lean earner operation, and transmitting a reference signal according to a bandwidth pattern. The bandwidth pattern is based at least in part on the identified at least one time period.

Apparatuses and methods for band scanning in lean carrier operation are disclosed. In one embodiment, a method for a network node includes identifying at least one time period for transmitting a reference signal over a full cell bandwidth in lean earner operation, and transmitting a reference signal according to a bandwidth pattern. The bandwidth pattern is based at least in part on the identified at least one time period.