초록 ▼

A high-speed wireless access device including wireless modems of a base station and a mobile terminal is disclosed. The wireless modem of the base station has a component to add a low-speed packet to the beginning of a high-speed packet, a component to add information to the low-speed packet, and a

A high-speed wireless access device including wireless modems of a base station and a mobile terminal is disclosed. The wireless modem of the base station has a component to add a low-speed packet to the beginning of a high-speed packet, a component to add information to the low-speed packet, and a component to transmit a packet to a mobile terminal by switching to high-speed mode immediately after addition of the low-speed packet. The wireless modem of the mobile terminal has a component for switching from a low-speed demodulation to a high-speed modulation/demodulation with an equalizer built-in, a component for analyzing data received by the low-speed demodulation, a component for turning off the low-speed demodulation and for turning on the high-speed modulation/demodulation when recognizing a packet to the mobile terminal, a component for turning off the high-speed modulation/demodulation after receiving the packet at the mobile terminal, a component for holding an AGC information in a low-speed receiving mode and for making use of this information in a high-speed receiving mode, and a component for holding a timing extraction information in the low-speed receiving mode and for making use of this information in the high-speed receiving mode.

대표청구항 ▼

[ What is claimed is:] [1.]1. A high-speed wireless access device comprising:a first wireless modem in a base station and a second wireless modem in a mobile terminal,wherein said first wireless modem in a base station includes,a low-speed modulation means;a first high-speed modulation/demodulation

[ What is claimed is:] [1.]1. A high-speed wireless access device comprising:a first wireless modem in a base station and a second wireless modem in a mobile terminal,wherein said first wireless modem in a base station includes,a low-speed modulation means;a first high-speed modulation/demodulation means with a first equalizer built-in;a low-speed packet adding means for adding a low-speed packet by said low-speed modulation means to the-beginning of a high-speed packet;an information adding means for adding information to said low-speed packet in order to inform a terminal to which terminal a packet is transmitted; anda transmission means for transmitting a packet addressed to a mobile terminal by switching to a high-speed mode immediately after adding said low-speed packet,and said second wireless modem in a mobile terminal includes,a low-speed demodulation means;a second high-speed modulation/demodulation means with a second equalizer built-in;a switching means for switching from said low-speed demodulation means to said second high-speed modulation/demodulation means and vice-versa;an analyzing means for analyzing data received by said low-speed demodulation means;a means for turning off said low-speed demodulation means and for turning on said second high-speed modulation/demodulation means when a packet addressed to said mobile terminal is recognized;a means for turning off said second high-speed modulation/demodulation means after receiving said packet addressed to said mobile terminal;an AGC information holding means for holding AGC information in a low-speed receiving mode and for making use of said AGC information in a high-speed receiving mode; anda timing extraction information holding means for holding timing extraction information in said low-speed receiving mode and for making use of said timing information in said high-speed receiving mode.