Random access method for machine type communication terminal
AssigneeElectronics and Telecommunications Research Institute
InventorsHee Sang CHUNG, Il Gyu KIM
Life of this patent
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Abstract
Disclosed is a random access method for a machine type communication (MTC) terminal. The random access method performed by a terminal includes performing a cell search, determining a radio environment based on time taken to perform the cell search, and performing different random access procedures depending on the determined radio environment. Accordingly, coverage of the MTC terminal that is in a poor radio environment may be enhanced, thereby performing normal communication with a base station.
Claims15
A random access method performed by a terminal, the random access method comprising:
- performing a cell search;
- determining a radio environment based on time taken to perform the cell search;
- and
- performing different random access procedures depending on the determined radio environment.
A random access method performed by a base station, the random access method comprising:
- broadcasting system information including resource division information;
- receiving a random access preamble transmitted based on the system information;
- determining a used resource group from the received random access preamble;
- and
- transmitting a random access response in a different scheme based on the determined resource group.
Dependencies are inferred from the claim text.