Method and apparatus for extending coverage in communication system
摘要
說明書
According to a second exemplary embodiment of the present disclosure, an operation method of a base station in a communication system may comprise: generating first random access (RA) configuration information used when a first condition is satisfied; generating second RA configuration information used when the first condition is not satisfied; transmitting the first RA configuration information and the second RA configuration information to a terminal; receiving a Msg1 from the terminal based on the second RA configuration information; transmitting a Msg2, which is a response to the Msg1, to the terminal; and repeatedly receiving a Msg3 K times from the terminal, wherein the Msg3 is not repeatedly transmitted in a first RA procedure according to the first RA configuration information, the Msg3 is repeatedly transmitted in a second RA procedure according to the second RA configuration information, and K is a natural number.
The operation method may further comprise, before the receiving of the Msg1, receiving information indicating whether the terminal supports repeated transmission of the Msg3 from the terminal.
A first RA preamble indicated by the first RA configuration information may be distinguished from a second RA preamble indicated by the second RA configuration information, and the Msg1 may be generated based on the second RA preamble.
A first physical random access channel (PRACH) occasion indicated by the first RA configuration information may be the same as a second PRACH occasion indicated by the second RA configuration information, and the Msg1 according to the second RA configuration information may be distinguished from a Msg1 according to the first RA configuration information by a PRACH mask.
