Terminal, communication circuit and communication method
First Claim
Patent Images
1. A terminal comprising:
- a memory; and
a processor coupled to the memory and configured to;
transmit a first random access signal to a base station, when the terminal loses a synchronization with the base station;
transmit a second random access signal to the base station after a period of time, when a response signal responsive to the first random access signal is not received from the base station;
obtain a detection result by detecting, when the terminal loses the synchronization with the base station, whether the terminal is in an idle mode;
set the period of time based on the detection result, the period of time being set to a first period when the detection result indicates the terminal is not in the idle mode, and the period of time being set to a second period longer than the first period when the detection result indicates the terminal is in the idle mode; and
set the period of time to the first period when the detection result indicates the terminal is in the idle mode, but data to be transmitted by the terminal to the base station is also detected.
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Abstract
A terminal including: an antenna configured to transmit a first random access signal, when the terminal loses a synchronization with a base station, to the base station, and to transmit a second random access signal, when a response signal to the first random access signal is not received by the terminal, to the base station after a period, and a processor configured to obtain a detection result by detecting, when the terminal loses the synchronization with the base station, whether a communication is in progress or not, and to set the period based on the detection result.
8 Citations
14 Claims
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1. A terminal comprising:
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a memory; and a processor coupled to the memory and configured to; transmit a first random access signal to a base station, when the terminal loses a synchronization with the base station; transmit a second random access signal to the base station after a period of time, when a response signal responsive to the first random access signal is not received from the base station; obtain a detection result by detecting, when the terminal loses the synchronization with the base station, whether the terminal is in an idle mode; set the period of time based on the detection result, the period of time being set to a first period when the detection result indicates the terminal is not in the idle mode, and the period of time being set to a second period longer than the first period when the detection result indicates the terminal is in the idle mode; and set the period of time to the first period when the detection result indicates the terminal is in the idle mode, but data to be transmitted by the terminal to the base station is also detected. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A communication circuit of a terminal, the communication circuit comprising:
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a memory; and a processor coupled to the memory and configured to; generate a first random access signal which is transmitted to a base station, when the terminal loses a synchronization with the base station; generate a second random access signal which is transmitted to the base station after a period of time, when a response signal responsive to the first random access signal is not received by the terminal; obtain a detection result by detecting, when the terminal loses the synchronization with the base station, whether the terminal is in an idle mode; set the period of time based on the detection result, the period of time being set to a first period when the detection result indicates the terminal is not in the idle mode, and the period of time being set to a second period longer than the first period when the detection result indicates the terminal is in the idle mode; and set the period of time to the first period when the detection result indicates the terminal is in the idle mode, but data to be transmitted by the terminal to the base station is also detected.
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9. A communication method comprising:
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transmitting a first random access signal to a base station by a terminal, when the terminal loses a synchronization with the base station; transmitting a second random access signal to the base station after a period of time, when a response signal responsive to the first random access signal is not received by the terminal; obtaining a detection result by detecting, when the terminal loses the synchronization with the base station, whether the terminal is in an idle mode; setting the period of time based on the detection result, the period of time being set to a first period when the detection result indicates the terminal is not in the idle mode, and the period of time being set to a second period longer than the first period when the detection result indicates the terminal is in the idle mode; and setting the period of time to the first period when the detection result indicates the terminal is in the idle mode, but data to be transmitted by the terminal to the base station is also detected. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification