Communication method in mobile communication system, and mobile station and base station in the same system
First Claim
1. A communication method in a mobile communication system including at least one mobile station and a base station, which performs radio communication with the mobile station, said communication method comprising:
- on the mobile station, adding uplink data to a transmission request sent to the base station for obtaining permission for data transmission, or to a channel establishment request sent to the base station for establishing a channel in order to send the transmission request therethrough.
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Accused Products
Abstract
The present method adds uplink data to a transmission request sent to the base station from the mobile station for obtaining permission for data transmission, or to a channel establishment request sent from the mobile station to the base station for establishing a channel in order to send the transmission request therethrough. This makes it possible to suppress delay caused by negotiation prior to actual uplink data transmission as much as possible, thereby realizing efficient uplink data transmission, that is, improved throughput of uplink communication.
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Citations
33 Claims
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1. A communication method in a mobile communication system including at least one mobile station and a base station, which performs radio communication with the mobile station, said communication method comprising:
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on the mobile station, adding uplink data to a transmission request sent to the base station for obtaining permission for data transmission, or to a channel establishment request sent to the base station for establishing a channel in order to send the transmission request therethrough. - View Dependent Claims (2)
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3. A communication method in a mobile communication system including at least one mobile station and a base station, which performs radio communication with the mobile station, wherein said base station is operable in a first mode in which the base station'"'"'s permission is not necessary when the mobile station transmits uplink data, and a second mode in which the base station'"'"'s permission is necessary when the mobile station transmits uplink data, said method comprising:
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on the base station, monitoring an uplink communication state between the base station and the mobile station;
operating in the first mode if the uplink communication state is of a specific or higher level of quality; and
operating in the second mode if the uplink communication state is of quality lower than the specific level. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A mobile station for a mobile communication system including at least one mobile station and a base station, which performs radio communication with the mobile station, said mobile station comprising:
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transmitter means which transmits a transmission request to the base station for obtaining permission for data transmission or a channel establishment request to the base station for establishing a channel in order to send the transmission request therethrough; and
data adding means which adds uplink data to the transmission request or to the channel establishment request.
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18. A base station for a mobile communication system including at least one mobile station and a base station, which performs radio communication with the mobile station, said base station comprising:
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reply information transmitter means which transmits reply information, indicating whether or not the uplink data sent from the mobile station has been normally received, to the mobile station; and
notification information adding means which adds transmission permission/non-permission notification information, indicating whether or not data transmission is permitted in response to the transmission request, to the reply information to be sent to the mobile station.
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19. A base station for a mobile communication system including at least one mobile station and a base station, which performs radio communication with the mobile station, wherein said mobile station is operable in a first mode in which the base station'"'"'s permission is not necessary when the mobile station transmits uplink data, and a second mode in which the base station'"'"'s permission is necessary when the mobile station transmits uplink data, said base station comprising:
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uplink communication state monitoring means which monitors an uplink communication state between the base station and the mobile station;
evaluating means which evaluates whether or not the communication state monitored by said communication state monitoring means is of a specific or higher level of quality; and
mode selecting means which selects the first mode as an operation mode if the evaluation result is positive, and which selects the second mode as an operation mode if the evaluation result is negative. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. A mobile station for a mobile communication system including at least one mobile station and a base station, which performs radio communication with the mobile station, in which mobile communication system said base station notifies, if a collision occurs in uplink data transmission from two or more mobile stations, each of the mobile stations of retransmission timing in the uplink data transmission, said mobile station comprising:
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uplink data generating means which generates uplink data including;
a user identification portion identifying each mobile station; and
a data portion, which is a message body; and
uplink data transmitter means which transmits the uplink data generated by said uplink data generating means to the base station. - View Dependent Claims (29, 30, 31, 32, 33)
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Specification