US 2004/0170152 A1 · Wireless LAN apparatus

Abstract

A packet synthesizing unit packetizes transmit data and thereby creates a transmit packet data, and more specifically, synthesizes the number of the transmit data indicated by a packet-length information from a packet length controlling unit into a transmit packet data. A frame synthesizing unit appends the packet-length information for transmission to a header of the transmit packet data to thereby create a transmit frame. A wireless transmit unit converts the transmit frame into a wireless transmit signal and wirelessly transmits the wireless transmit signal. In the wireless transmission, the packet length controlling unit controls the packet length of the transmit data according to a transmit rate in the wireless transmit unit. The packet length controlling unit reduces the packet length when the transmit rate is relatively high and extends the packet length when the transmit rate is relatively low. This improves the transmission efficiency and communication quality.

Claims16

Dependent claims

A wireless LAN apparatus comprising:

as a transmitting-side configuration thereof,
a packet length controlling unit,
the packet length controlling unit controlling a packet length of transmit data;
a packet synthesizing unit,
the packet synthesizing unit synthesizing the number of the transmit data corresponding to the packet length controlled by the packet length controlling unit into a packet transmit data and outputting the transmit packet data;
a frame synthesizing unit,
the frame synthesizing unit appending the packet-length information to a header information of the transmit packet data synthesized by the packet synthesizing unit and outputting the transmit packet data as a transmit frame;
and
a wireless transmit unit,
the wireless transmit unit transmitting wirelessly the transmit frame output by the frame synthesizing unit.

7 more elements

A wireless LAN apparatus comprising:

as a transmitting-side configuration thereof,
a wireless transmit unit,
the wireless transmit unit synthesizing one or a plurality of transmit data into a transmit packet data and
appending a packet-length information indicating the number the transmit data synthesized into the transmit packet data to a header information of the transmit packet data and transmitting wirelessly the transmit packet data as a transmit frame;
as a receiving-side configuration thereof,
a wireless receive unit,
the wireless receive unit receiving the transmit frame transmitted wirelessly by another wireless LAN apparatus configured likewise;
a packet extracting unit,
the packet extracting unit separating the received transmit frame into the transmit packet data and the header information;
a packet length detecting unit,
the packet length detecting unit detecting the packet-length information included in the transmit frame in the header information separated from the transmit frame by the packet extracting unit;
and
a packet dividing unit,
the packet dividing unit dividing the transmit packet data separated from the transmit frame by the packet extracting unit based on the packet-length information detected by the packet length detecting unit and outputting the divided transmit packet data.

11 more elements

Dependencies are inferred from the claim text.

Wireless LAN apparatus

Life of this patent

Wireless LAN apparatus

Life of this patent

Abstract

Claims16