Method for random access in wireless communication system, wireless communication system, wireless terminal, and base station unit
First Claim
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1. A method for random access in a wireless communication system including a base station unit and a wireless terminal, the method comprising:
- at the wireless terminal,detecting first information used for first random access and second information used for second random access, the second information being received from the base station unit;
selecting information among the first information and the second information, in a case of receiving a new request requesting for one random access among the first random access and the second random access while another random access among the first random access and the second random access is already ongoing;
proceeding with only one random access using the selected information from the selecting, among the first random access and the second random access; and
not proceeding with another random access which is different from the random access using the selected information from the selecting, among the first random access and the second random access.
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Abstract
In the event of detecting first information used for first random access and second information used for second random access, the second information being received from the base station unit, a wireless terminal selects one between the first information and the second information. Thereby, either one of the random accesses can be selectively performed, efficiently using resources such as signatures used for random access.
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Citations
20 Claims
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1. A method for random access in a wireless communication system including a base station unit and a wireless terminal, the method comprising:
at the wireless terminal, detecting first information used for first random access and second information used for second random access, the second information being received from the base station unit; selecting information among the first information and the second information, in a case of receiving a new request requesting for one random access among the first random access and the second random access while another random access among the first random access and the second random access is already ongoing; proceeding with only one random access using the selected information from the selecting, among the first random access and the second random access; and not proceeding with another random access which is different from the random access using the selected information from the selecting, among the first random access and the second random access. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless communication system including a base station unit and a wireless terminal, wherein
the wireless terminal selects information among first information used for first random access and second information used for second random access, in a case of receiving a new request requesting for one random access among the first random access and the second random access while another random access among the first random access and the second random access is already ongoing, the second information being received from the base station unit; -
the wireless terminal proceeds with only one random access using the selected information, among the first random access and the second random access, and does not proceed with another random access which is different from the random access using the selected information, among the first random access and the second random access; the base station unit receives the first information used for the first random access from the wireless terminal; the base station unit transmits the second information used for the second random access to the wireless terminal; and the base station unit proceeds with the random access using the selected information, among the first random access and the second random access. - View Dependent Claims (10)
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11. A wireless terminal comprising:
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a generator that generates first information used for first random access to a base station unit; a receiver that receives, from the base station unit, second information used for second random access to the base station unit; a selector that selects information among the first information and the second information, in a case of receiving a new request requesting for one random access among the first random access and the second random access while another random access among the first random access and the second random access is already ongoing; and a controller that proceeds with only one random access using the selected information, among the first random access and the second random access, and that does not proceed with another random access which is different from the random access using the selected information, among the first random access and the second random access. - View Dependent Claims (12, 13, 14, 15)
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16. A base station unit comprising:
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a receiver that receives first information used for first random access received from a wireless terminal; a transmitter that transmits second information used for second random access to the wireless terminal; and a controller that proceeds with only one random access using information, which the wireless terminal selects among the first information and the second information in a case of receiving a new request requesting for one random access among the first random access and the second random access while another random access among the first random access and the second random access is already ongoing, among the first random access and the second random access and that does not proceed with another random access which is different from the random access using the information selected by the wireless terminal, among the first random access and the second random access. - View Dependent Claims (17, 18, 19, 20)
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Specification