Method for random access in wireless communication system, wireless communication system, wireless terminal, and base station unit

A method for random access in a wireless communication system including a base station and a wireless terminal, the method comprising:

• at the wireless terminal,
• determining whether continuing a first random access procedure using a first random access preamble or newly starting a second random access procedure using a second random access preamble which is received from the base station.

A method for random access in a wireless communication system including a base station and a wireless terminal, the method comprising:

• at the wireless terminal,
• determining whether continuing a first random access procedure using a first random access preamble which is received from the base station or newly starting a second random access procedure using a second random access preamble.

A method for random access in a wireless communication system including a base station and a wireless terminal, the method comprising:

• at the wireless terminal,
• when receiving a request for transmitting a second random access preamble, which is received from the base station, used for second random access during performing first random access using a first random access preamble, only performing one of either the first random access or the second random access.

A method for random access in a wireless communication system including a base station and a wireless terminal, the method comprising:

• at the wireless terminal,
• when receiving a request for transmitting a second random access preamble used for second random access during performing first random access using a first random access preamble received from the base station, only performing one of either the first random access or the second random access.

A wireless terminal comprising:

• a processor that performs first random access procedure using a first random access preamble or second random access procedure using a second random access preamble which is received from a base station.

A wireless terminal comprising:

• a processor that determines whether continuing first random access procedure using a first random access preamble or newly starting second random access procedure using a second random access preamble which is received from a base station.

A wireless terminal comprising:

• a processor that determines whether continuing first random access procedure using a first random access preamble which is received from a base station or newly starting second random access procedure using a second random access preamble.

A wireless terminal comprising:

• a selector that selecting first information used for first random access or second information, which is received from a base station, used for second random access;
• and
• a processor that only performs random access using selected information.

A wireless terminal comprising:

• a processor that only performs, when the wireless terminal receives a request for transmitting a second random access preamble, which is received from a base station, used for second random access during performing first random access using a first random access preamble, one of either the first random access or the second random access.

A wireless terminal comprising:

• a processor that only performs, when the wireless terminal receives a request for transmitting a second random access preamble used for second random access during performing first random access using a first random access preamble received from a base station, one of either the first random access or the second random access.

A base station comprising:

• a communication unit that performs a data communication with a wireless terminal which performs first random access procedure using a first random access preamble or second random access procedure using a second random access preamble which is received from the base station.

A base station comprising:

• a communication unit that performs a data communication with a wireless terminal which determines whether continuing first random access procedure using a first random access preamble or newly starting second random access procedure using a second random access preamble which is received from the base station.

A base station comprising:

• a communication unit that performs a data communication with a wireless terminal which determines whether continuing first random access procedure using a first random access preamble which is received from the base station or newly starting second random access procedure using a second random access preamble.

A base station comprising:

• a communication unit that performs a data communication with a wireless terminal which selects first information used for first random access or second information, which is received from the base station, used for second random access and only performs random access using selected information.

A base station comprising:

• a communication unit that performs a data communication with a wireless terminal which only performs, when the wireless terminal receives a request for transmitting a second random access preamble, which is received from the base station, used for second random access during performing first random access using a first random access preamble, one of either the first random access or the second random access.

A base station comprising:

• a communication unit that performs a data communication with a wireless terminal which only performs, when the wireless terminal receives a request for transmitting a second random access preamble used for second random access during performing first random access using a first random access preamble received from the base station, one of either the first random access or the second random access.