Communication method and base station apparatus
First Claim
1. A communication method of a radio communication system comprising a radio terminal apparatus and a base station apparatus which performs radio communication with the radio terminal apparatus and allowing for communication between a plurality of base station apparatuses, the communication method comprising the steps of:
- obtaining, by the base station apparatus being connected to the radio terminal apparatus, information on a plurality of base station apparatuses capable of communicating with the radio terminal apparatus, from the radio terminal apparatus; and
determining, by the base station apparatus being connected to the radio terminal apparatus, an access point base station apparatus to connect to the radio terminal apparatus for communication based on the information on the plurality of base station apparatuses obtained at the step of obtaining and a value indicative of a communication processing time between the base station apparatuses.
1 Assignment
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Accused Products
Abstract
A terminal 204 requests handover to a base station 201 if the terminal detects deterioration in a communication state during communication with the base station 201. Upon reception of the handover request, the base station 201 obtains information (available base station list) on a plurality of base stations capable of communicating with the terminal 204 from the terminal 204, and based on the information obtained and a value (RTT) indicative of a communication processing time between the base stations, decides a handover destination base station to connect to the terminal 204 for communication.
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Citations
11 Claims
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1. A communication method of a radio communication system comprising a radio terminal apparatus and a base station apparatus which performs radio communication with the radio terminal apparatus and allowing for communication between a plurality of base station apparatuses, the communication method comprising the steps of:
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obtaining, by the base station apparatus being connected to the radio terminal apparatus, information on a plurality of base station apparatuses capable of communicating with the radio terminal apparatus, from the radio terminal apparatus; and determining, by the base station apparatus being connected to the radio terminal apparatus, an access point base station apparatus to connect to the radio terminal apparatus for communication based on the information on the plurality of base station apparatuses obtained at the step of obtaining and a value indicative of a communication processing time between the base station apparatuses. - View Dependent Claims (2, 3, 4)
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5. A communication method of a radio communication system comprising a radio terminal apparatus and a base station apparatus which performs radio communication with the radio terminal apparatus and allowing for communication between a plurality of base station apparatuses, the communication method comprising the steps of:
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obtaining, by the base station apparatus being connected to the radio terminal apparatus, information on a plurality of base station apparatuses capable of communicating with the radio terminal apparatus including evaluation values indicative of communication states between the radio terminal apparatus and the plurality of base station apparatuses capable of communicating with the radio terminal apparatus, from the radio terminal apparatus; and determining, by the base station apparatus being connected to the radio terminal apparatus, an access point base station to connect to the radio terminal apparatus for communication based on the information on the plurality of base station apparatuses including the evaluation values obtained at the step of obtaining and a value indicative of a communication processing time between the base station apparatuses. - View Dependent Claims (6, 7, 8, 9)
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10. A base station apparatus comprising:
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a communication processing time obtaining unit configured to obtain a value indicative of a communication processing time between base station apparatuses; a base station information obtaining unit configured to obtain, from a radio terminal apparatus being connected, information on a plurality of base station apparatuses capable of communicating with the radio terminal apparatus; and a determination unit configured to determine an access point base station apparatus to connect to the radio terminal apparatus for communication based on the information on the plurality of base station apparatuses obtained by the base station information obtaining unit and the value indicative of the communication processing time between the base station apparatuses obtained by the communication processing time obtaining unit.
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11. A base station apparatus comprising:
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a communication processing time obtaining unit configured to obtain a value indicative of a communication processing time between base station apparatuses; a base station information obtaining unit configured to obtain, from a radio terminal apparatus being connected, information on a plurality of base station apparatuses capable of communicating with the radio terminal apparatus, including evaluation values of communication states between the radio terminal apparatus and the plurality of base station apparatuses capable of communicating with the radio terminal apparatus; and a determination unit configured to determine an access point base station apparatus to connect to the radio terminal apparatus for communication based on the information on the plurality of base station apparatuses including the evaluation values obtained by the base station information obtaining unit and the value indicative of the communication processing time between the base station apparatuses obtained by the communication processing time obtaining unit.
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Specification