TERMINAL APPARATUS FOR TRANSMITTING OR RECEIVING A SIGNAL INCLUDING PREDETERMINED INFORMATION
First Claim
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1. A terminal apparatus which might be moved, wherein a subframe in which a first period, which should be used by the terminal apparatus present in a first area formed around a base station apparatus for transmitting a packet signal, and a second period, which should be used by the terminal apparatus present in a second area formed on the outside of the first area for transmitting the packet signal, are time-division multiplexed is defined and a frame in which a plurality of subframes are time-division multiplexed is defined, the terminal apparatus comprising:
- a receiving unit configured to receive the packet signal from the base station apparatus;
a measuring unit configured to measure a quality of the packet signal received by the receiving unit;
an estimating unit configured to estimate entry from the second area to the first area when the quality measured by the measuring unit is improved so as to satisfy a first condition and to estimate the entry from the first area to the second area when the quality measured by the measuring unit is deteriorated so as to satisfy a second condition;
a determining unit configured to determine the first period or the second period as transmission timing based on an estimated result by the estimating unit; and
a transmitting unit configured to transmit the packet signal at the transmission timing determined by the determining unit,whereinthe estimating unit sets different values for a parameter included in the first condition and the parameter included in the second condition.
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Abstract
A measuring unit measures a quality of a received packet signal. An estimating unit estimates entry from a second area to a first area when the measured quality is improved so as to satisfy a first condition and estimates the entry from the first area to the second area when the quality measured by the measuring unit is deteriorated so as to satisfy a second condition. The estimating unit sets different values for a parameter included in the first condition and the parameter included in the second condition. The determining unit determines a first period or a second period as transmission timing based on an estimated result.
14 Citations
11 Claims
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1. A terminal apparatus which might be moved, wherein a subframe in which a first period, which should be used by the terminal apparatus present in a first area formed around a base station apparatus for transmitting a packet signal, and a second period, which should be used by the terminal apparatus present in a second area formed on the outside of the first area for transmitting the packet signal, are time-division multiplexed is defined and a frame in which a plurality of subframes are time-division multiplexed is defined, the terminal apparatus comprising:
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a receiving unit configured to receive the packet signal from the base station apparatus; a measuring unit configured to measure a quality of the packet signal received by the receiving unit; an estimating unit configured to estimate entry from the second area to the first area when the quality measured by the measuring unit is improved so as to satisfy a first condition and to estimate the entry from the first area to the second area when the quality measured by the measuring unit is deteriorated so as to satisfy a second condition; a determining unit configured to determine the first period or the second period as transmission timing based on an estimated result by the estimating unit; and a transmitting unit configured to transmit the packet signal at the transmission timing determined by the determining unit, wherein the estimating unit sets different values for a parameter included in the first condition and the parameter included in the second condition. - View Dependent Claims (2, 3, 4)
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5. A terminal apparatus, which might be moved, wherein a subframe including a period, which should be used by the terminal apparatus present in an area formed around a base station apparatus for transmitting a packet signal is defined and a frame in which a plurality of subframes are time-division multiplexed is defined, the terminal apparatus comprising:
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a receiving unit configured to receive the packet signal from the base station apparatus; a measuring unit configured to measure a quality of the packet signal received by the receiving unit; an estimating unit configured to estimate entry from the outside of the area to the area when the quality measured by the measuring unit is improved so as to satisfy a first condition and to estimate the entry from the area to the outside of the area when the quality measured by the measuring unit is deteriorated so as to satisfy a second condition; a determining unit configured to determine the period or timing unrelated to a configuration of the frame as transmission timing based on an estimated result by the estimating unit; and a transmitting unit configured to transmit the packet signal at the transmission timing determined by the determining unit, wherein the estimating unit sets different values for a parameter included in the first condition and the parameter included in the second condition.
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6. A terminal apparatus, which might be moved, wherein a subframe in which a first period, which should be used by the terminal apparatus present in a first area formed around a base station apparatus for transmitting a packet signal, and a second period, which should be used by the terminal apparatus present in a second area formed on the outside of the first area for transmitting the packet signal, are time-division multiplexed is defined and a frame in which a plurality of subframes are time-division multiplexed is defined, the terminal apparatus comprising:
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a receiving unit configured to receive the packet signal from the base station apparatus; a first measuring unit configured to measure power of the packet signal received by the receiving unit; a first estimating unit configured to estimate whether the terminal apparatus is present in the first area or in the second area based on the power measured by the first measuring unit; a second measuring unit configured to measure an error rate of the packet signal received by the receiving unit; a second estimating unit configured to estimate whether the terminal apparatus is present in the second area or on the outside of the second area based on the error rate measured by the second measuring unit; a determining unit configured to determine any one of the first period, the second period, and timing unrelated to a configuration of the frame as transmission timing based on at least one of an estimated result by the second estimating unit and the estimated result by the first estimating unit; and a transmitting unit configured to transmit the packet signal at the transmission timing determined by the determining unit, wherein the first estimating unit stops estimating when the terminal apparatus is present on the outside of the second area, and the second estimating unit stops estimating when the terminal apparatus is present in the first area. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification
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Current AssigneeSanyo Electric Company Limited (Panasonic Holdings Corporation)
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Original AssigneeSanyo Electric Company Limited (Panasonic Holdings Corporation)
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InventorsNAGAI, Makoto, Higuchi, Keisuke
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Application NumberUS13/425,077Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current370/252CPC Class CodesG08G 1/162 event-triggeredH04W 4/021 Services related to particu...H04W 4/44 for communication between v...H04W 4/46 for vehicle-to-vehicle comm...H04W 74/002 Transmission of channel acc...
