US 9,320,042 B2 · Wireless communication system with multiple base stations cooperating to transmit data

Abstract

The present invention is directed to achievement of a data transmission control to cause base stations to cooperate with one another, taking into account efficient use of radio resources. A wireless communication system, which is an aspect of the present invention, includes: a first base station; a second base station connected via a wired network; and a wireless communication terminal that conducts at least one of single data transmission in which a single base station transmits data and cooperative data transmission in which a plurality of base stations cooperate to transmit data. The base stations notify the wireless communication terminal of a condition indicating a case where the cooperative data transmission can be performed. If the communication quality of the propagation path meets the condition, the wireless communication terminal transmits, to the base stations, information that is required for the cooperative data transmission.

Claims20

Dependent claims

A wireless communication system, comprising:

a first base station;
a second base station connected with the first base station through a wired network;
and
a wireless communication terminal comprising a signal processing unit configured to select at least one of a single data transmission in which data is transmitted from the first base station and a cooperative data transmission in which the first base station and the second base station cooperate to transmit data,
wherein the first base station includes a signal processing unit configured to:
generate a condition;
and
notify the wireless communication terminal of the condition to cause the wireless communication terminal to determine whether the cooperative data transmission to the wireless communication terminal is required, and
the signal processing unit of the wireless communication terminal is further configured to:
compare a communication quality of a propagation path of the wireless communication terminal and the first base station with the condition;
and
transmit, based on a result of the comparison, information required for the cooperative data transmission.

9 more elements

A first base station performing a data transmission to a wireless communication terminal, comprising a signal processing unit configured to:

generate a threshold;
notify the wireless communication terminal of the threshold to cause the wireless communication terminal to determine whether a cooperative data transmission to the wireless communication terminal is required;
and
perform the cooperative data transmission when receiving a request for the cooperative data transmission form the wireless communication terminal.

1 more element

Dependencies are inferred from the claim text.

Wireless communication system with multiple base stations cooperating to transmit data

Life of this patent

Wireless communication system with multiple base stations cooperating to transmit data

Life of this patent

Abstract

Claims20