Claims
- 1. A wireless access system comprising:
multiple cells, each having one or more primary channels with adjacent cells having different primary channels; and within a cell, an access point transmitting on the one or more primary channels and at lesser power on a secondary channel exclusive of the primary channel, the access point assigning channels to wireless clients.
- 2. The wireless access system of claim 1 wherein the access point senses relative distance of clients and assigns secondary channels to closer clients.
- 3. The wireless access system of claim 2 wherein the access point senses power to sense relative distance.
- 4. The wireless access system of claim 1 wherein clocks in each access point are synchronized.
- 5. The wireless access system of claim 4 wherein the access point expands the secondary channels to fill the cell for a limited time agreed upon with other access points.
- 6. The wireless access system of claim 5 wherein the access point retransmits, upon detecting a collision of its transmission with transmissions from the client or another access point.
- 7. The wireless access system of claim 5 wherein the client retransmits, upon detecting a collision of its transmission with transmissions from another client or the access point.
- 8. The wireless access system of claim 7 wherein collisions are reduced by limiting transmission by the client to a pre-determined time slot.
- 9. The wireless access system of claim 1 wherein a multichannel client is restricted to primary channels in an outer region of the cell.
- 10. The wireless access system of claim 9 wherein the multi channel client transmits over all available channels simultaneously.
- 11. A method for increasing bandwidth in a wireless access system comprising the steps of:
assigning different primary channels to adjacent cells; within a cell, transmitting from the primary channel and at lesser power on a secondary channel exclusive of the primary channel; and assigning channels to wireless clients.
- 12. The method of claim 11 wherein the step of assigning further comprises:
sensing relative distance of clients; and assigning secondary channels to closer clients.
- 13. The method of claim 12 wherein the step of sensing further comprises:
sensing power to sense relative distance.
- 14. The method of claim 11 wherein clocks in each access point are synchronized.
- 15. The method of claim 14 further comprising:
expanding the secondary channels to fill the cell for a limited time agreed with other access points.
- 16. The method of claim 15 further comprising:
re-transmitting by the access point, upon detecting a collision of its transmission with transmission from another access point or the client.
- 17. The method of claim 15 further comprising:
re-transmitting by the client, upon detecting a collision of its transmission with transmission from another client or the access point.
- 18. The method of claim 16 further comprising:
limiting transmission by the client to predetermined time slots to reduce collisions.
- 19. The method of claim 11 wherein a multichannel client is restricted to primary channels in an outer region of the cell.
- 20. The method of claim 19 wherein the multi channel client transmits over all available channels simultaneously.
RELATED APPLICATION
[0001] This application claims the benefit of U.S. Provisional Application No. 60/349,173, filed Jan. 16, 2002. The entire teachings of the above application are incorporated herein by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60349173 |
Jan 2002 |
US |