Wireless access control method, relay station and base station

A relay station comprising:

• a relay controller that is operative to control the operation of the relay station;
• a relay receiver that is operative to receive information of a subscriber station and a base station over a wireless channel;
• a relay transmitter that is operative to transmit information to the subscriber station and the base station via the wireless channel;
• and
• a range measurer that is operative to measure signal strength and timing offset of a ranging request of said subscriber station, and to forward the ranging request with a stronger signal to said base station via a dedicated control information relay zone, and omit weaker ranging requests.

A base station comprising:

• a base station controller that is operative to control information receiving and transmitting operations;
• a base station receiver that is operative to receive uplink bearer data and uplink control information of a subscriber station and a relay station over a wireless channel;
• and
• a base station transmitter that is operative to transmit downlink bearer data to the subscriber station via the relay station wireless channel, wherein said base station transmitter sends downlink control information directly to said subscriber station.

A wireless access control method in a wireless access network comprising a base station for receiving and sending information over a wireless channel, said method comprising:

• under the control of a base station, using a relay station to receive and forward information of said subscriber station and said base station over said wireless channel;
• said relay station receiving uplink bearer data and uplink control information from said subscriber station and forwarding said uplink bearer data and uplink control information to said base station;
• and
• said relay station receiving downlink bearer data from said base station and forwarding downlink bearer data to said subscriber station;
• said base station sending downlink control information directly to said subscriber station
• said base station receiving ranging request information from a subscriber station;
• said relay station measuring the signal strength of said subscriber station's ranging request and forwarding the ranging request with stronger signal to said base station via said dedicated control information relay zone, other weaker requesting request being omitted by the relay station;
• and
• receiving a message indicating whether said base station has decided to relay.