Mobile communication systems
First Claim
1. A mobile communication system including a base station and a mobile station configured to communicate with the base station, the system including:
- a first communication mode between the base station and the mobile station in which a first radio frequency is used for an uplink and a second radio frequency is used for a downlink;
a second communication mode between the base station and the mobile station in which the first radio frequency is used for the uplink, and the second radio frequency is shared by the uplink and the downlink;
a third communication mode between the base station and the mobile station in which the first radio frequency is shared by the uplink and the downlink and the second radio frequency is used for the downlink; and
a mode switcher configured to switch a communication mode between the base station and the mobile station among the first, second, and third communication modes in accordance with data transfer volumes on the uplink and the downlink between the base station and the mobile station, while keeping the base station in synchronization with an adjacent base station so as to prevent interference.
1 Assignment
0 Petitions
Accused Products
Abstract
A mobile communication system includes a base station connected to a backbone network, and a mobile station configured to communicate with the base station using a radio frequency. The system has a first communication mode, in which a first radio frequency is used for an uplink and a second radio frequency is used for a downlink; a second communication mode, in which the first radio frequency is used for the uplink, and the second radio frequency is shared by the uplink and the downlink; a third communication mode, in which the second radio frequency is used for the downlink, and the first radio frequency is shared by the uplink and the downlink; and a mode switcher configured to switch the first through third communication modes in accordance with data transfer volumes on the uplink and the downlink.
44 Citations
9 Claims
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1. A mobile communication system including a base station and a mobile station configured to communicate with the base station, the system including:
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a first communication mode between the base station and the mobile station in which a first radio frequency is used for an uplink and a second radio frequency is used for a downlink; a second communication mode between the base station and the mobile station in which the first radio frequency is used for the uplink, and the second radio frequency is shared by the uplink and the downlink; a third communication mode between the base station and the mobile station in which the first radio frequency is shared by the uplink and the downlink and the second radio frequency is used for the downlink; and a mode switcher configured to switch a communication mode between the base station and the mobile station among the first, second, and third communication modes in accordance with data transfer volumes on the uplink and the downlink between the base station and the mobile station, while keeping the base station in synchronization with an adjacent base station so as to prevent interference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification