Method and apparatus for performing random access procedures
First Claim
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1. A method of performing a random access procedure by a terminal, the method comprising:
- setting two kinds of maximum number of Hybrid Automatic Repeat reQuest (HARQ) transmissions parameter, wherein a first kind of maximum number of HARQ transmissions parameter is used for transmitting an uplink data according to Random Access Channel (RACH) procedure and a second kind of maximum number of HARQ transmissions parameter is used for transmitting data other than Protocol Data Unit (MAC PDU) stored in a MSG3 buffer;
transmitting a random access preamble which is selected at a Medium Access Control (MAC) layer in the terminal;
receiving a random access response in response to transmitting the random access preamble; and
performing an uplink transmission using an uplink grant included in the random access response,wherein the uplink data includes an identifier of the terminal and the uplink data transmitted using the uplink grant is a MAC PDU, andwherein the uplink transmission is performed by using the first kind of maximum number of HARQ transmissions parameter, which is included in a System Information Block (SIB) received from a base station.
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Abstract
A mobile terminal and a method of performing a random access procedure by the terminal is achieved by transmitting a random access preamble to a base station, receiving a random access response from the base station, and performing an uplink transmission using an uplink grant from the base station. The uplink transmission is performed by using a maximum number of HARQ (Hybrid Automatic Repeat reQuest) transmissions parameter, which is included in a System Information Block (SIB) received from the base station.
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Citations
15 Claims
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1. A method of performing a random access procedure by a terminal, the method comprising:
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setting two kinds of maximum number of Hybrid Automatic Repeat reQuest (HARQ) transmissions parameter, wherein a first kind of maximum number of HARQ transmissions parameter is used for transmitting an uplink data according to Random Access Channel (RACH) procedure and a second kind of maximum number of HARQ transmissions parameter is used for transmitting data other than Protocol Data Unit (MAC PDU) stored in a MSG3 buffer; transmitting a random access preamble which is selected at a Medium Access Control (MAC) layer in the terminal; receiving a random access response in response to transmitting the random access preamble; and performing an uplink transmission using an uplink grant included in the random access response, wherein the uplink data includes an identifier of the terminal and the uplink data transmitted using the uplink grant is a MAC PDU, and wherein the uplink transmission is performed by using the first kind of maximum number of HARQ transmissions parameter, which is included in a System Information Block (SIB) received from a base station. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A terminal comprising:
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A Radio Resource Control (RRC)) layer configured to receive two kinds of maximum number of Hybrid Automatic Repeat reQuest (HARQ) transmissions parameters via system information or via a dedicated massage; and a Medium Access Control (MAC) layer configured to receive the two kinds of maximum number of HARQ transmissions parameters from the RRC layer, wherein a first kind of maximum number of HARQ transmissions parameter is used for transmission of data related to a RACH procedure, and a second kind of maximum number of HARQ transmissions parameter is used for transmission of data other than Protocol Data Unit (MAC PDU) stored in a MSG3 buffer. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification