Radio communication system, radio communication method, and base station apparatus
First Claim
Patent Images
1. A radio communication system comprising:
- a base station apparatus which includes a first communicable area; and
a terminal apparatus which connects to and performs radio communication with the base station apparatus in the first communicable area, whereinthe base station apparatus includes;
a processor configured to decide a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area which is a part of the first communication area or includes all of the first communicable area; and
a transmitter configured to transmit information of the decided destination,the terminal apparatus includes;
a receiver configured to receive the information of the decided destination, andthe terminal apparatus moves to the second or the third communicable area according to the information of the decided destination, whereinthe movement condition includes a first and second movement conditions,the first movement condition includes a movement condition in case that the first communicable area is lamer than the second and third communicable areas, andthe second movement condition includes a movement condition in case that the first communicable area is smaller than the second and third communicable areas,the first movement condition includes a condition not to move the terminal apparatus in comparison with the second movement condition,the first movement condition is a condition to move the terminal apparatus in case that a receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a first threshold,the second movement condition is a condition to move the terminal apparatus in case that the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than the receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a second threshold, andthe first threshold is a threshold of a higher receiving signal level than the second threshold.
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Abstract
A radio communication system including a base station apparatus which includes a first communicable area; and a terminal apparatus which connects to and performs radio communication with the base station apparatus in the first communicable area, wherein the base station apparatus includes a determination unit which decides a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area whose size is different from the first communicable area and which is overlapped with a part or all of the first communicable area; the terminal apparatus includes a reception unit which receives the information of the decided destination.
6 Citations
11 Claims
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1. A radio communication system comprising:
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a base station apparatus which includes a first communicable area; and a terminal apparatus which connects to and performs radio communication with the base station apparatus in the first communicable area, wherein the base station apparatus includes; a processor configured to decide a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area which is a part of the first communication area or includes all of the first communicable area; and a transmitter configured to transmit information of the decided destination, the terminal apparatus includes; a receiver configured to receive the information of the decided destination, and the terminal apparatus moves to the second or the third communicable area according to the information of the decided destination, wherein the movement condition includes a first and second movement conditions, the first movement condition includes a movement condition in case that the first communicable area is lamer than the second and third communicable areas, and the second movement condition includes a movement condition in case that the first communicable area is smaller than the second and third communicable areas, the first movement condition includes a condition not to move the terminal apparatus in comparison with the second movement condition, the first movement condition is a condition to move the terminal apparatus in case that a receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a first threshold, the second movement condition is a condition to move the terminal apparatus in case that the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than the receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a second threshold, and the first threshold is a threshold of a higher receiving signal level than the second threshold. - View Dependent Claims (2, 3)
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4. A radio communication system comprising:
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a base station apparatus which includes a first communicable area; and a terminal apparatus which connects to and performs radio communication with the base station apparatus in the first communicable area, wherein the base station apparatus includes; a processor configured to decide a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual Quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area which is a part of the first communication area or includes all of the first communicable area; and a transmitter configured to transmit information of the decided destination, the terminal apparatus includes; a receiver configured to receive the information of the decided destination, and the terminal apparatus moves to the second or the third communicable area according to the information of the decided destination, wherein the movement condition includes a first and second movement conditions, the first movement condition includes a movement condition in case that the first communicable area is lamer than the second and third communicable areas, and the second movement condition includes a movement condition in case that the first communicable area is smaller than the second and third communicable areas, the first movement condition includes a condition to move the terminal apparatus in comparison with the second movement condition, the first movement condition is a condition to move the terminal apparatus in case that a receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a third threshold, the second movement condition is a condition to move the terminal apparatus in case that the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than the receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable area is higher than a fourth threshold, and the fourth threshold is a threshold of a higher receiving signal level than the third threshold.
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5. A radio communication system comprising:
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a base station apparatus which includes a first communicable area; and a terminal apparatus which connects to and performs radio communication with the base station apparatus in the first communicable area, wherein the base station apparatus includes; a processor configured to decide a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual Quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area which is a part of the first communication area or includes all of the first communicable area; and a transmitter configured to transmit information of the decided destination, the terminal apparatus includes; a receiver configured to receive the information of the decided destination, and the terminal apparatus moves to the second or the third communicable area according to the information of the decided destination, wherein the movement condition includes a third and fourth movement conditions, the third movement condition includes a movement condition in case that the power residual quantity is equal or smaller than a fifth threshold, and the fourth movement condition includes a movement condition in case that the power residual quantity is larger than the fifth threshold, the third movement condition includes a condition to move the terminal apparatus in comparison with the fourth movement condition, wherein the third movement condition is a condition to move the terminal apparatus in case that the power residual quantity is smaller than the fifth threshold and a receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a receiving signal level of the terminal apparatus in the first communicable area, or the power residual quantity is smaller than the fifth threshold, the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than the receiving signal level of the terminal apparatus in the first communicable area, and a receiving signal level of the terminal apparatus is higher than a sixth threshold, the fourth movement condition is a condition to move the terminal apparatus in case that the power residual quantity is larger than the fifth threshold, the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than the receiving signal level of the terminal apparatus in the first communicable area, and the receiving signal level of the terminal apparatus is higher than a seventh threshold, and the seventh threshold is a threshold of a higher receiving signal level than the sixth threshold.
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6. A radio communication system comprising:
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a base station apparatus which includes a first communicable area; and a terminal apparatus which connects to and performs radio communication with the base station apparatus in the first communicable area, wherein the base station apparatus includes; a processor configured to decide a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area which is a part of the first communication area or includes all of the first communicable area; and a transmitter configured to transmit information of the decided destination, the terminal apparatus includes; a receiver configured to receive the information of the decided destination, and the terminal apparatus moves to the second or the third communicable area according to the information of the decided destination, wherein the movement condition includes fifth and sixth movement conditions based on the power residual quantity and the sizes of the first to the third communicable areas, the fifth movement condition includes a movement condition in case that the power residual quantity is equal or smaller than a fifth threshold, and the sixth movement condition includes a condition not to move the terminal apparatus in any one case, in comparison with the other, that the power residual quantity is larger than the fifth threshold and the first communicable area is larger than the second and third communicable areas, or the power residual quantity is larger than the fifth threshold and the first communicable area is smaller than the second and third communicable areas. - View Dependent Claims (7)
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8. A radio communication system comprising:
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a base station apparatus which includes a first communicable area; and a terminal apparatus which connects to and performs radio communication with the base station apparatus in the first communicable area, wherein the base station apparatus includes; a processor configured to decide a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area which is a part of the first communication area or includes all of the first communicable area; and a transmitter configured to transmit information of the decided destination, the terminal apparatus includes; a receiver configured to receive the information of the decided destination, and the terminal apparatus moves to the second or the third communicable area according to the information of the decided destination, wherein the movement condition includes seventh and eighth movement conditions according to the sizes of the first to third communicable areas and a requested throughput transmitted from the terminal apparatus, the seventh movement condition includes a condition not to move the terminal apparatus in case that the requested throughput is equal or lower than a ninth threshold and the first communicable area is larger than the second and third communicable areas, in comparison case that the requested throughput is equal or lower than a ninth threshold and the first communicable area is smaller than the second and third communicable areas, and the eighth movement condition includes a movement condition in case that the requested throughput higher than a tenth threshold. - View Dependent Claims (9)
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10. A radio communication control method in a radio communication system including a base station apparatus which includes a first communicable area and a terminal apparatus which connects to and performs radio communication with the base station apparatus in the first communicable area, the method comprising:
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deciding a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area which is a part of the first communication area or includes all of the first communicable area, by the base station apparatus; transmitting information of the decided destination, by the base station apparatus; and receiving the information of the decided destination, and moving to the second or the third communicable area according to the information of the decided destination, by the terminal apparatus, wherein the movement condition includes a first and second movement conditions, the first movement condition includes a movement condition in case that the first communicable area is lamer than the second and third communicable areas, and the second movement condition includes a movement condition in case that the first communicable area is smaller than the second and third communicable areas, the first movement condition includes a condition not to move the terminal apparatus in comparison with the second movement condition, the first movement condition is a condition to move the terminal apparatus in case that a receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a first threshold, the second movement condition is a condition to move the terminal apparatus in case that the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than the receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a second threshold, and the first threshold is a threshold of a higher receiving signal level than the second threshold.
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11. A base station apparatus including a first communicable area for connecting to and performing radio communication with a terminal apparatus in the first communicable area, the base station apparatus comprising:
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a processor configured to decide a destination of the terminal apparatus based on a changeable movement condition according to sizes of the first, a second, and a third communicable areas or power residual quantity of the terminal apparatus transmitted from the terminal apparatus, when the terminal apparatus moves from the first communicable area to the second or the third communicable area which is a part of the first communication area or includes all of the first communicable area; and a transmitter configured to transmit information of the decided destination to the terminal apparatus, wherein the movement condition includes a first and second movement conditions, the first movement condition includes a movement condition in case that the first communicable area is larger than the second and third communicable areas, and the second movement condition includes a movement condition in case that the first communicable area is smaller than the second and third communicable areas, the first movement condition includes a condition not to move the terminal apparatus in comparison with the second movement condition, the first movement condition is a condition to move the terminal apparatus in case that a receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a first threshold, the second movement condition is a condition to move the terminal apparatus in case that the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than the receiving signal level of the terminal apparatus in the first communicable area and the receiving signal level of the terminal apparatus in the second and third communicable areas is higher than a second threshold, and the first threshold is a threshold of a higher receiving signal level than the second threshold.
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Specification
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Current AssigneeFujitsu Limited
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Original AssigneeFujitsu Limited
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InventorsDu, Haiqing
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Primary Examiner(s)Lee, Justin
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Application NumberUS14/290,887Publication NumberTime in Patent Office1,139 DaysField of SearchUS Class CurrentCPC Class CodesH04W 28/0226 based on location or mobili...H04W 36/00835 Determination of neighbour ...H04W 36/32 by location or mobility dat...
