Method and system for extending coverage of WLAN access points via optically multiplexed connection of access points to sub-stations
First Claim
1. A system for enabling a plurality of wireless communication terminals present in a local area to communicate with a network outside the local area, the system comprising:
- a plurality of sub-stations for forming respective wireless communication areas individually in the local area, and performing wireless communication with the wireless communication terminals in the respective corresponding wireless communication areas;
a main station connected to each of the plurality of sub-stations via an optical fiber transmission path; and
a plurality of access points, connected to the main station via a wireless transmission path, for converting signals to be input from an outside of the local area to an inside of the local area to a signal form for use in the local area, and converting signals to be output from the inside of the local area to the outside of the local area to a signal form for use in the outside of the local area,wherein the main station comprises;
a managing section operable to determine one of the plurality of access points to which a first one of the wireless communication terminals is accessible; and
a selecting section operable to select and output one of the signals to be input from the outside of the local area, whose form is converted in the one of the plurality of access points determined by the managing section, and which is input to the local area, to the first wireless communication terminal via a corresponding one of the sub-stations.
4 Assignments
0 Petitions
Accused Products
Abstract
A SW (70) receives an Ethernet® signal from an outside of areas E and F. The SW (70) selects and outputs the obtained Ethernet® signal to any one of APs (91a to 91e) in accordance with a network structure managed by the SW (70). The AP (91a to 91e) converts the Ethernet® signal to an electrical signal type wireless LAN signal, which is in turn output to a main station (10). The main station (10) frequency-multiplexes the signal output from each of the APs (91a to 91e), and converts the signal to an optical signal, which is in turn output to sub-stations (20a and 20b). The sub-station (20a and 20b) transmits the signal transmitted from the main station (10) to a terminal in the form of a wireless radio wave. Thereby, when a plurality of communication areas are present, the accommodation capacity of an AP can be effectively utilized in each communication area.
-
Citations
20 Claims
-
1. A system for enabling a plurality of wireless communication terminals present in a local area to communicate with a network outside the local area, the system comprising:
-
a plurality of sub-stations for forming respective wireless communication areas individually in the local area, and performing wireless communication with the wireless communication terminals in the respective corresponding wireless communication areas; a main station connected to each of the plurality of sub-stations via an optical fiber transmission path; and a plurality of access points, connected to the main station via a wireless transmission path, for converting signals to be input from an outside of the local area to an inside of the local area to a signal form for use in the local area, and converting signals to be output from the inside of the local area to the outside of the local area to a signal form for use in the outside of the local area, wherein the main station comprises; a managing section operable to determine one of the plurality of access points to which a first one of the wireless communication terminals is accessible; and a selecting section operable to select and output one of the signals to be input from the outside of the local area, whose form is converted in the one of the plurality of access points determined by the managing section, and which is input to the local area, to the first wireless communication terminal via a corresponding one of the sub-stations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A system for enabling a plurality of wireless communication terminals present in a local area to communicate with a network outside the local area, the system comprising:
-
a plurality of sub-stations for forming respective wireless communication areas individually in the local area, and performing wireless communication with the wireless communication terminals in the respective corresponding wireless communication areas; a main station connected to each of the plurality of the sub-stations via an optical fiber transmission path; and a plurality of access points, connected to the main station via a wireless transmission path, for converting signals to be input from an outside of the local area to an inside of the local area to a signal form for use in the local area, and converting signals to be output from the inside of the local area to the outside of the local area to a signal form for use in the outside of the local area, wherein the main station comprises; a multiplexing section operable to frequency-multiplex the signals converted by the plurality of access points to be input to the local area, and a selecting section operable to select and output the signals to be input to the local area, which have been multiplexed by the multiplexing section, to all of the sub-stations.
-
Specification