COMMUNICATION SYSTEM, MOBILE TERMINAL, AND COMMUNICATION METHOD
First Claim
1. A wireless communication system comprising a mobile terminal and a plurality of base stations,each of the base stations comprising:
- a communication unit configured to selectively use at least one of a plurality of frequency bands to communicate with the mobile terminal; and
a handover unit configured to perform handover with at least one another base station, andthe mobile terminal comprising;
a storage unit configured to store, by each base station basis, information of a frequency band used for communication from the plurality of frequency bands; and
a notification unit configured to notify, when handover from a first base station currently connected in communication to a second base station is required, the first base station about a proximity indication associated with some of the plurality of frequency bands, based on the stored information of the frequency band used for communication, andthe handover unit is adapted to initiate handover based on the proximity indication from the mobile terminal.
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Accused Products
Abstract
A wireless communication system including a mobile terminal and a plurality of base stations is provided. Each of base stations includes communication unit selectively uses at least one of a plurality of frequency bands to communicate with the mobile terminal, and a handover unit performs handover with at least one another base station. The mobile terminal includes a storage unit stores, by each base station basis, information of a frequency band used for communication from the plurality of frequency bands, and a notification unit notifies, when handover from a first base station currently connected in communication to a second base station is required, the first base station about a proximity indication associated with some of the plurality of frequency bands based on the stored information of the frequency band used for communication.
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Citations
16 Claims
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1. A wireless communication system comprising a mobile terminal and a plurality of base stations,
each of the base stations comprising: -
a communication unit configured to selectively use at least one of a plurality of frequency bands to communicate with the mobile terminal; and a handover unit configured to perform handover with at least one another base station, and the mobile terminal comprising; a storage unit configured to store, by each base station basis, information of a frequency band used for communication from the plurality of frequency bands; and a notification unit configured to notify, when handover from a first base station currently connected in communication to a second base station is required, the first base station about a proximity indication associated with some of the plurality of frequency bands, based on the stored information of the frequency band used for communication, and the handover unit is adapted to initiate handover based on the proximity indication from the mobile terminal. - View Dependent Claims (2, 3, 4, 5)
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6. A mobile terminal used in a wireless communication system comprising a plurality of base stations adapted to selectively use at least one of a plurality of frequency bands to carry out communication, the mobile terminal comprising:
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a storage unit configured to store, by each base station basis, information of a frequency band used for communication from the plurality of frequency bands, and a notification unit configured to notify, when handover from a first base station currently connected in communication to a second base station is required, the first base station about a proximity indication associated with some of the plurality of frequency bands, based on stored information of the frequency band used for communication. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 15, 16)
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14. A communication method used at a wireless communication system comprising a plurality of base stations adapted to selectively use at least one of a plurality of frequency bands to carry out communication, the communication method comprising the steps of:
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storing, by each base station basis, information of a frequency band used for communication from the plurality of the frequency bands, and notifying, when handover from a first base station currently connected in communication to a second base station is required, the first base station about a proximity indication associated with some of the plurality of frequency bands, based on the stored information of a frequency band used for communication, and initiating handover based on the proximity indication.
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Specification