Method and apparatus for extending coverage in communication system
摘要
說明書
Here, the predefined condition may be a case in which a measurement result (e.g., received signal strength, reception quality) of a signal received from the base station exceeds a threshold. For example, the terminal may perform a measurement operation on a synchronization signal and/or a reference signal received from the base station. When a result of the measurement operation exceeds the threshold (e.g., when the predefined condition is satisfied), the terminal may perform the first RA procedure using the first RA configuration information. In this case, the terminal may determine that it is not located in an edge region. When the result of the measurement operation is less than or equal to the threshold (e.g., when the predefined condition is not satisfied), the terminal may perform the second RA procedure using the second RA configuration information. In this case, the terminal may determine that it is located in an edge region.
The second RA configuration information (e.g., RACH configuration and/or RACH-related parameters) used when the result of the measurement operation (e.g., reference signal received power (RSRP) of SS/PBCH block, a relative position of the terminal (e.g., estimated value of the position), a relative position of the base station (e.g., estimated value of the position)) is less than or equal to the threshold may be configured independently of the first RA configuration information (e.g., RACH configuration and/or RACH-related parameters) used when the above-described result of measurement operation exceeds the threshold. That is, the RA procedure (e.g., the second RA procedure) performed when the result of the measurement operation is less than or equal to the threshold may be distinguished from the RA procedure (e.g., the first RA procedure) performed when the result of the measurement operation exceeds the threshold.
