BASE TRANSCEIVER STATION APPARATUS AND MOBILE COMMUNICATIONS SYSTEM
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Accused Products
Abstract
When carrying out a downlink handover, a source base transceiver station from which a mobile node is moving receives packets to be transmitted, via a wireless section, to the mobile node from an IP network, and copies and transfers them to a destination base transceiver station to which the mobile node is moving. On the other hand, when carrying out an uplink handover, the source base transceiver station compares the reliability of transport blocks which are received via a wireless section, from the mobile node and which are demodulated and decoded by the local station with that of transport blocks which are received via an IP network, from another base transceiver station and which are demodulated and decoded thereby, packetizes selected transport blocks with a better quality, and transmits them to a communications-partner node according to a route table, thereby implementing distribution of traffic via the IP network.
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Citations
3 Claims
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1. (canceled)
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2. A handover controlling method for controlling a handover when a mobile node is moved between radio areas covered by two base stations, comprising steps of:
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requesting a destination base station to connect; requesting the source base station to transfer a copy of a packet destined for the mobile node to the destination base station receiving the request of connection; transferring the copy of the packet from the source base station receiving the request of transfer to the destination base station through an interface between the source base station and the destination base station; and transmitting the packet from the source base station and a copy of the packet from the destination base station to the mobile node. - View Dependent Claims (3)
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Specification