US 9,072,024 B2 · Wireless communication system

Abstract

A wireless communication system includes a first relay station that includes a first storage and performs wireless communication with a first base station coupled to an exchange by a wire, and a mobile device that performs wireless communication with the first relay station. The first relay station receives first data with a first sequence number from the first base station, and stores the first data with a second sequence number into the first storage, the first relay station selects a first node as a handover destination, and when the first node is a second base station coupled to the exchange by a wire, the first relay station receives second data with a third sequence number from the first base station, and transmits the first data with the second sequence number and the second data with a fourth sequence number continuous to the second sequence number to the second base station.

Claims11

Dependent claims

A wireless communication system comprising:

a first base station coupled to an exchange;
a first relay station configured to perform wireless communication of data including a sequence number indicating a transmission order, the first relay station configured to communicate with the first base station and a mobile device,
wherein
the first relay station receives first data with a first sequence number from the first base station, renumbers the first sequence number into a second sequence number, and stores the first data with the second sequence number into a storage,
the first relay station selects a first node as a handover destination, and
when the first node is a second base station coupled to the exchange, the first relay station is further configured to:
receive second data with a third sequence number from the first base station;
renumber the third sequence number into a fourth sequence number such that the second sequence number and the fourth sequence number are sequentially ordered;
and
transmit the first data with the second sequence number and the second data with the fourth sequence number to the second base station.

7 more elements

A relay station configured to perform wireless communication with a mobile device and with a first base station coupled to an exchange, the relay station comprising:

a first interface configured to:
receive first data from the first base station including a first sequence number indicating a transmission order;
and
renumber the first sequence number into a second sequence number;
and
a storage configured to store the first data with the second sequence number, wherein
when a second base station coupled to the exchange is selected as a handover destination, the first interface is configured to:
receive second data with a third sequence number from the first base station;
renumber the third sequence number into a fourth sequence number such that the second sequence number and the fourth sequence number are sequentially ordered;
and transmit the first data with the second sequence number and the second data with the fourth sequence number to the second base station.

7 more elements

A wireless communication method executed by a system including a relay station configured to perform wireless communication of data including a sequence number indicating a transmission order, with a mobile device and with a first base station coupled to an exchange, the method comprising:

transmitting first data with a first sequence number from the first base station to the first relay station;
renumbering the first data with the first sequence number into a second sequence number;
storing the first data with a second sequence number into the first relay;
selecting a first node as a handover destination;
and
when the first node is a second base station coupled to the exchange, transmitting second data with a third sequence number from the first base station to the first relay station,
renumbering the third sequence number of the second data into a fourth sequence number such that the second sequence number and the fourth sequence number are sequentially ordered
and transmitting the first data with the second sequence number and the second data with a fourth sequence number to the second base station.

5 more elements

Dependencies are inferred from the claim text.

Wireless communication system

Life of this patent

Wireless communication system

Life of this patent

Abstract

Claims11