Network selection and random access method and apparatus of machine-type communication user equipment in mobile communication system
A network selection, a random access method, and an apparatus of a Machine Type Communication (MTC) User Equipment (UE) for use in a Long Term Evolution (LTE) are provided. A cell selection method of an MTC terminal of the present disclosure includes receiving a message from a base station forming a cell, determining whether the message includes an MTC supportability indicator, and barring, when the message includes no MTC supportability indicator, scanning a frequency used in communication with the base station during a determined period.
1. A method performed by a terminal in a wireless communication system, the method comprising:
receiving a first message including system information from a base station associated with a cell;
determining whether the system information includes allowance information indicating that a category 0 terminal is allowed to access the cell;
barring a selection of the cell, in case that the system information does not include the allowance information;
transmitting a random access preamble to the base station, in case that the system information includes the allowance information;
receiving a random access response (RAR) message from the base station as a response to the random access preamble;
transmitting a second message for requesting an establishment of radio resource control (RRC) connection on common control channel (CCCH) to the base station as a response to the RAR message; and
receiving a third message for establishing the RRC connection as a response to the second message,
wherein information indicating that the CCCH is for the category 0 terminal is transmitted with the second message to the base station, and
wherein the category 0 terminal is characterized as having a maximum data rate of 1000 bits within a subframe.
2. The method of claim 1 , wherein the first message comprises a system information block (SIB).
3. The method of claim 1 , wherein the information indicating that the CCCH is for the category 0 terminal is contained in a medium access control (MAC) header.
4. The method of claim 1 , wherein the information indicating that the CCCH is for the category 0 terminal includes a logical channel identifier (LCID) set to a determined value and the determined value is different from 00000.
5. The method of claim 1 , wherein the third message is received as fragmented form of the third message or removed form of part of the third message.
6. A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
a controller configured to:
control the transceiver to receive a first message including system information from a base station associated with a cell,
determine whether the system information includes allowance information indicating that a category 0 terminal is allowed to access the cell,
bar a selection of the cell, in case that the system information does not include the allowance information,
control the transceiver to transmit a random access preamble to the base station, in case that the system information includes the allowance information,
control the transceiver to receive a random access response (RAR) message from the base station as a response to the random access preamble,
control the transceiver to transmit a second message for requesting an establishment of radio resource control (RRC) connection on common control channel (CCCH) to the base station as a response to the RAR message, and
control the transceiver to receive a third message for establishing the RRC connection as a response to the second message,
wherein information indicating that the CCCH is for the category 0 terminal is transmitted with the second message to the base station, and
wherein the category 0 terminal is characterized as having a maximum data rate of 1000 bits within a subframe.
7. The terminal of claim 6 , wherein the first message comprises a system information block (SIB).
8. The terminal of claim 6 , wherein the information indicating that the CCCH is for the category 0 terminal is contained in a medium access control (MAC) header.
9. The terminal of claim 6 , wherein the information indicating that the CCCH is for the category 0 terminal includes a logical channel identifier (LCID) set to a determined value and the determined value is different from 00000.
10. The terminal of claim 6 , wherein the third message is received as fragmented form of the third message or removed form of part of the third message.
11. A method performed by a base station in a wireless communication system, the method comprising:
determining whether to allow an access of a category 0 terminal to a cell associated with the base station;
generating a first message including allowance information indicating that the category 0 terminal is allowed to access to the cell, in case that the base station allows the access of the category 0 terminal to the cell;
broadcasting the first message;
receiving a random access preamble from a terminal;
transmitting a random access response (RAR) message for the terminal as a response to the random access preamble;
receiving, from the terminal, a second message for requesting an establishment of radio resource control (RRC) connection on common control channel (CCCH) as a response to the RAR message, the second message including information indicating that the CCCH is for the category 0 terminal;
identifying that the terminal is the category 0 terminal based on the information indicating that the CCCH is for the category 0 terminal; and
transmitting, to the terminal, a third message for establishing the RRC connection as a response to the second message,
wherein the category 0 terminal is characterized as having a maximum data rate of 1000 bits within a subframe.
12. The method of claim 11 , wherein the first message comprises a system information block (SIB).
13. The method of claim 11 , wherein the information indicating that the CCCH is for category 0 terminal is contained in a medium access control (MAC) header.
14. The method of claim 11 , wherein the information indicating that the CCCH is for the category 0 terminal includes a logical channel identifier (LCID) set to a determined value and the determined value is different from 00000.
15. A base station in a wireless communication system, the base station comprising:
a transceiver; and
a controller configured to:
determine whether to allow an access of a category 0 terminal to a cell associated with the base station,
generate a first message including allowance information indicating that the category 0 terminal is allowed to access the cell, in case that the base station allows the access of the category 0 terminal to the cell,
control the transceiver to broadcast the first message,
control the transceiver to receive a random access preamble from a terminal,
control the transceiver to transmit a random access response (RAR) message for the terminal as a response to the random access preamble,
control the transceiver to receive, from the terminal, a second message for requesting an establishment of radio resource control (RRC) connection on common control channel (CCCH) as a response to the RAR message, the second message including information indicating that the CCCH is for the category 0 terminal,
identify that the terminal is the category 0 terminal based on information indicating that the CCCH is for the category 0 terminal, and
control the transceiver to transmit, to the terminal, a third message for establishing the RRC connection as a response to the second message,
wherein the category 0 terminal is characterized as having a maximum data rate of 1000 bits within a subframe.
16. The base station of claim 15 , wherein the first message comprises a system information block (SIB).
17. The base station of claim 15 , wherein the information indicating that the CCCH is for the category 0 terminal is contained in a medium access control (MAC) header.
18. The base station of claim 15 , wherein the information indicating that the CCCH is for the category 0 terminal includes a logical channel identifier (LCID) set to a determined value and the determined value is different from 00000.