MOBILE WIRELESS COMMUNCATION SYSTEM, BASE STATION, MOBILE TERMINAL AND RANDOM ACCESS CONTROL METHOD USED THEREFOR
First Claim
1. A base station which, when a communication start request signal is transmitted by a mobile terminal using an access slot and a signature selected at random in the start of random access communication, transmits either a request acknowledgement signal or a request negative acknowledgement signal indicative of permission or rejection on the communication start request to the mobile terminal, the base station comprising:
- an access slot and signature designation part that designates either the access slot or the signature at transmission of the request negative acknowledgement signal to the mobile terminal; and
a request acknowledgement signal transmission part that transmits a request acknowledgement signal to the mobile terminal in priority upon receipt of the communication start request signal transmitted with either the designated access slot or signature from the mobile terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
A base station which, when a communication start request signal is transmitted by a mobile terminal using an access slot and a signature selected at random in the start of random access communication, transmits either a request acknowledgement signal or a request negative acknowledgement signal indicative of permission or rejection on the communication start request to the mobile terminal, the base station including:
an access slot and signature designation part that designates either the access slot or the signature at transmission of the request negative acknowledgement signal to the mobile terminal; and
a request acknowledgement signal transmission part that transmits a request acknowledgement signal to the mobile terminal in priority upon receipt of the communication start request signal transmitted with either the designated access slot or signature from the mobile terminal.
23 Citations
19 Claims
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1. A base station which, when a communication start request signal is transmitted by a mobile terminal using an access slot and a signature selected at random in the start of random access communication, transmits either a request acknowledgement signal or a request negative acknowledgement signal indicative of permission or rejection on the communication start request to the mobile terminal, the base station comprising:
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an access slot and signature designation part that designates either the access slot or the signature at transmission of the request negative acknowledgement signal to the mobile terminal; and a request acknowledgement signal transmission part that transmits a request acknowledgement signal to the mobile terminal in priority upon receipt of the communication start request signal transmitted with either the designated access slot or signature from the mobile terminal. - View Dependent Claims (2, 3)
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4. A mobile terminal transmitting a communication start request signal to a base station using an access slot and a signature selected at random in the start of random access communication and receiving from the base station either the request acknowledgement signal or the request negative acknowledgement signal indicative of permission or rejection on the communication start request, the mobile terminal comprising:
a communication start request signal retransmission part that retransmits the communication start request signal with either the access slot or the signature designated by the base station upon receipt of the request negative acknowledgement signal. - View Dependent Claims (5, 6)
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7. A mobile wireless communication system comprising:
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a mobile terminal that transmits a communication start request signal, to a base station, using an access slot and a signature selected at random in the start of random access communication; and a base station that transmits, to the mobile terminal either a request acknowledgement signal or a request negative acknowledgement signal indicative of permission or rejection on a communication start request, wherein the base station includes an access slot and signature designation part that designates either the access slot or the signature at transmission of the request negative acknowledgement signal to the mobile terminal and a request acknowledgement signal transmission part that transmits a request acknowledgement signal to the mobile terminal in priority upon receipt of the communication start request signal transmitted with either the designated access slot or signature from the mobile terminal; and the mobile terminal includes a communication start request signal retransmission part that retransmits the communication start request signal with either the access slot or the signature designated by the base station upon receipt of the request negative acknowledgement signal. - View Dependent Claims (8, 9, 10)
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11. A random access control method used for a mobile wireless communication system in which a mobile terminal transmits a communication start request signal to a base station with an access slot and a signature selected at random in the start of random access communication and the base station transmits either a request acknowledgement signal or a request negative acknowledgement signal indicative of permission or rejection on the communication start request to the mobile terminal, the method comprising:
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the base station designating either the access slot or the signature at transmission of the request negative acknowledgement signal to the mobile terminal and transmitting the request acknowledgement signal to the mobile terminal in priority upon receipt of the communication start request signal transmitted from the mobile terminal with either the designated access slot or signature; and the mobile terminal transmitting the communication start request signal with either the access slot or the signature designated by the base station upon receipt of the request negative acknowledgement signal. - View Dependent Claims (12, 13, 14)
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15. A recording medium recording a program of a random access control method used for a mobile wireless communication system in which a mobile terminal transmits a communication start request signal to a base station with an access slot and a signature selected at random in the start of random access communication and the base station transmits either a request acknowledgement signal or a request negative acknowledgement signal on the communication start request to the mobile terminal, wherein
the recording medium is provided in the mobile terminal and the program includes retransmitting the communication start request signal, by a computer inside the mobile terminal, with either the access slot or signature designated by the base station upon receipt of the request negative acknowledgement signal.
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16. A recording medium recording a program of a random access control method used for a mobile wireless communication system in which a mobile terminal transmits a communication start request signal to a base station with an access slot and a signature selected at random in the start of random access communication and the base station transmits either a request acknowledgement signal or a request negative acknowledgement signal on the communication start request to the mobile terminal, wherein
the recording medium is provided in the base station and the program includes, by a computer inside the base station, designating either the access slot or the signature at transmission of the request negative acknowledgement signal to the mobile terminal and transmitting a request acknowledgement signal to the mobile terminal in priority upon receipt of the communication start request signal transmitted from the mobile terminal with either the designated access slot or signature.
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17. A base station which, when a communication start request signal is transmitted by a mobile terminal using an access slot and a signature selected at random in the start of random access communication, transmits either a request acknowledgement signal or a request negative acknowledgement signal indicative of permission or rejection on the communication start request to the mobile terminal, the base station comprising:
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an access slot and signature designation means that designates either the access slot or the signature at transmission of the request negative acknowledgement signal to the mobile terminal; and a request acknowledgement signal transmission means that transmits a request acknowledgement signal to the mobile terminal in priority upon receipt of the communication start request signal transmitted with either the designated access slot or signature from the mobile terminal.
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18. A mobile terminal transmitting a communication start request signal to a base station using an access slot and a signature selected at random in the start of random access communication and receiving from the base station either the request acknowledgement signal or the request negative acknowledgement signal indicative of permission or rejection on the communication start request, the mobile terminal comprising:
a communication start request signal retransmission means that retransmits the communication start request signal with either the access slot or the signature designated by the base station upon receipt of the request negative acknowledgement signal.
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19. A mobile wireless communication system comprising:
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a mobile terminal that transmits a communication start request signal, to a base station, using an access slot and a signature selected at random in the start of random access communication; and a base station that transmits, to the mobile terminal either a request acknowledgement signal or a request negative acknowledgement signal indicative of permission or rejection on a communication start request, wherein the base station includes an access slot and signature designation means that designates either the access slot or the signature at transmission of the request negative acknowledgement signal to the mobile terminal and a request acknowledgement signal transmission means that transmits a request acknowledgement signal to the mobile terminal in priority upon receipt of the communication start request signal transmitted with either the designated access slot or signature from the mobile terminal; and the mobile terminal includes a communication start request signal retransmission means that retransmits the communication start request signal with either the access slot or the signature designated by the base station upon receipt of the request negative acknowledgement signal.
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Specification