Methods, devices, and medium for communication
Embodiments of the present disclosure relate to communication. According to embodiments of the present disclosure, a network device is able to configure resources dedicated to repetition of transmission during the access procedure. If a terminal device determines to perform the repetition of transmission, the terminal device uses the dedicated resources for the transmission. The numbers of the repetition are determined based on a target power for the transmission and a maximum power at the terminal device. In this way, it improves coverage of the terminal device and the success in accessing channel.
1. A method performed by a terminal device, the method comprising:
receiving, via radio resource control (RRC) signaling, configuration information comprising an indication indicating a set of preambles for repetitions for a message 3 transmission; and
performing random access using a preamble from the set of preambles for the repetitions for the message 3 transmission.
2. The method of claim 1 , wherein the performing the random access comprises:
transmitting the preamble from the set of preambles for the repetitions for the message 3 transmission.
3. The method of claim 2 , wherein the performing random access further comprises:
receiving a random access response (RAR) indicating a first number of the repetitions for the message 3 transmission.
4. A method performed by a network device, the method comprising:
transmitting, via radio resource control (RRC) signaling, configuration information comprising an indication indicating a set of preambles for repetitions for a message 3 transmission; and
performing random access using a preamble from the set of preambles for the repetitions for the message 3 transmission.
5. The method of claim 4 , wherein the performing the random access comprising:
receiving the preamble from the set of preambles for the repetitions for the message 3 transmission.
6. The method of claim 5 , wherein the performing the random access further comprising:
transmitting a random access response (RAR) indicating a first number of the repetitions for the message 3 transmission.
7. A terminal device comprising:
at least one processor configured to:
receive, via radio resource control (RRC) signaling, configuration information comprising an indication indicating a set of preambles for repetitions for a message 3 transmission; and
perform random access using a preamble from the set of preambles for the repetitions for the message 3 transmission.
8. The terminal device of claim 7 , wherein the at least one processor is configured to perform the random access by transmitting the preamble from the set of preambles for the repetitions for the message 3 transmission.
9. The terminal device of claim 8 , wherein the at least one processor is configured to perform the random access further by receiving a random access response (RAR) indicating a first number of the repetitions for the message 3 transmission.