Radio data communication system and method for carrying out data communication through a radio channel
AssigneeNEC Corporation
InventorTsuneyuki Kikuchi
Life of this patent
Estimating the term…
Abstract
In a radio communication system for transmitting data transmission through a current path between a radio client terminal and an information server connected to a wire communication network, the current path is switched to an alternative path which is connected to another information server by comparing each transmission time through the current and the alternative path with each other, when the transmission time through the alternative path is shorter than that through the current path. Such a path switching may be carried out under control of a management server.
Claims33
A radio communication method of carrying out data communication comprising:
- establishing a first path between a radio terminal and a first server to carry out the data communication;
- measuring an amount of information left in the radio terminal at a predetermined time instant during the data communication after the first path is established;
- and
- determining in the radio terminal whether to switch the first path to a second path connected to a second server based on at least the amount of information left in the radio terminal at the predetermined time instant.
A radio data communication system for use in carrying out data communication, the radio data communication system comprising:
- establishing means for establishing a first path between the radio terminal and a first server to carry out the data communication;
- measuring means for measuring an amount of information left in the radio terminal at a predetermined time instant during the data communication after the first path is established;
- and
- determining means for determining whether to switch the first path to a second path connected to a second server based on at least the amount of information left in the radio terminal at the predetermined time instant.
A radio terminal for use in carrying out data transmission comprising:
- establishing means for establishing a first path between a radio terminal and a first server to carry out the data communication;
- measuring means for measuring an amount of information left in the radio terminal at a predetermined time instant during the data communication after the first path is established;
- and
- determining means for determining whether to switch the first path to a second path connected to a second server based on at least the amount of information left in the radio terminal at the predetermined time instant.
A radio data communication system for use in carrying out data communication, the radio data communication system comprising:
- a first server;
- a second server;
- and
- a radio terminal, the radio terminal including:
- a connection interface that establishes a first communication path between the radio terminal and the first server to carry out the data communication;
- and
- a communication application that measures an amount of information left in the radio terminal at a predetermined time instant during the data communication after the first communication path is established and determines if the data communication is to be switched from the first communication path to a second communication path connected to the second server based on at least the amount of information left in the radio terminal at the predetermined time instant.
A radio terminal for carrying out data transmission, the radio terminal comprising:
- a connection interface that establishes a first communication path between the radio terminal and a first server to carry out the data communication;
- and
- A communication application that measures an amount of information left in the radio terminal at a predetermined time instant during the data communication after the first communication path is established and determines if the data communication is to be switched from the first communication path to a second communication path connected to a second server based on at least the amount of information left in the radio terminal at the predetermined time instant.
Dependencies are inferred from the claim text.