Method and system for operating multiple dependent networks

• US 20050238084A1
• Filed: 01/25/2005
• Published: 10/27/2005
• Est. Priority Date: 01/08/2004
• Status: Abandoned Application

• Current Assignee: Wisair Limited (Wisair Incorporated)
• Original Assignee: Wisair Limited (Wisair Incorporated)
• Inventors: Gadi, Shor, Kuperschmidt, Yefim
• Application Number:
  US11/043,457
• Publication Number:
  US 20050238084A1
• Time in Patent Office: Days
• US Class Current: 375/133
• CPC Class Codes: H04B 1/7163 using impulse radio
• CPC Class Codes: H04B 2201/70702 Intercell-related aspects
• CPC Class Codes: H04B 7/2628 using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] H04B7/2618 takes precedence
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/16 Multipoint routing
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets
• CPC Class Codes: H04W 28/10 Flow control between communication endpoints
• CPC Class Codes: H04W 28/14 using intermediate storage
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 72/569 of the traffic information
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A device and method for ultra wide band transmission, the method includes: (a) allowing a first group of ultra wide band devices to exchange information using a first frequency hopping sequence; and (b) allowing at least one certain device that is responsive to at least one transmission of information from a device of the first group to exchange information using the first frequency hopping sequence during at least one time period and allowing devices that belong to the second group to exchange information using a second frequency hopping sequence during at least one other time period.

Claims

1. A method for ultra wide band transmission, the method comprises:

(a) allowing a first group of ultra wide band devices to exchange information using a first frequency hopping sequence; and

(b) allowing at least one certain device that is responsive to at least one transmission of information from a device of the first group to exchange information using the first frequency hopping sequence during at least one time period and allowing devices that belong to the second group to exchange information using a second frequency hopping sequence during at least one other time period.

2. The method of claim 1 wherein the at least one certain device belongs to the first and second groups of devices.

3. The method of claim 1 wherein the at least one certain device only belongs to the second group of devices.

4. The method of claim 1 wherein the second frequency hopping sequence is substantially a delayed first frequency hopping sequence.

5. The method of claim 1 wherein the first and second frequency sequences include hopping between frequencies that belong to the same frequency band group.

6. The method of claim 1 further comprising controlling the exchange of information between members of the second group by the certain device.

7. The method of claim 1 further comprising controlling the exchange of information between members of the second group by utilizing a distributed media access control scheme.

8. The method of claim 1 further comprising transmitting information representative of the first and second frequency hopping sequences prior to utilizing the first and second frequency hopping sequences.

9. The method of claim 1 wherein the first frequency hopping sequence comprises performing a frequency hopping between a transmission of each symbol.

10. The method of claim 9 wherein the second frequency hopping sequence is substantially a delayed first frequency hopping sequence and wherein the delay is a multiple integer of a inter-symbol period.

11. The method of claim 9 wherein the second frequency hopping sequence is substantially a delayed first frequency hopping sequence and wherein the delay is fraction of an inter-symbol period.

12. The method of claim 9 further comprising repeating stage (b).

13. The method of claim 9 further comprising synchronizing between the first and second frequency hopping sequences.

14. The method of claim 9 wherein the at least one time period comprises a first set of time periods and the at least one other time period comprises a second set of time periods.

15. The method of claim 14 wherein each time period of the first set is followed by a time period of the second set.

30. The method of claim 1 further comprising relaying information, by a certain device, between a device of the first group and a device of the second group.

16. An ultra wide band device that comprises:

a receiver adapted to receive information from at least one device of a first group of ultra wide band devices, using a first frequency hopping sequence; and

a transmitter, adapted to transmit information to at least one device of the first group of ultra wide band devices, using the first frequency hopping sequence during at least one time period and further adapted to transmit information to at least one device of a second group of ultra wide band devices, using a second frequency hopping sequence, during at least one other time period.

17. The device of claim 16 wherein the device belongs to the first and second groups of devices.

18. The device of claim 16 wherein the device only belongs to the second group of devices.

19. The device of claim 16 wherein the second frequency hopping sequence is substantially a delayed first frequency hopping sequence.

20. The device of claim 16 wherein the first and second frequency sequences include hopping between frequencies that belong to the same frequency band group.

21. The device of claim 16 further adapted to control an exchange of information between devices of the second group.

22. The device of claim 16 further adapted to participate in a distributed media access control scheme for controlling an exchange of information between members of the second group.

23. The device of claim 16 further adapted to transmit information representative of the first and second frequency hopping sequences prior to a utilization of the first and second frequency hopping sequences.

24. The device of claim 16 adapted to perform a frequency hopping between a transmission of each symbol.

25. The device of claim 24 wherein the second frequency hopping sequence is substantially a delayed first frequency hopping sequence and wherein the delay is a multiple integer of a inter-symbol period.

26. The device of claim 24 wherein the second frequency hopping sequence is substantially a delayed first frequency hopping sequence and wherein the delay is fraction of an inter-symbol period.

27. The device of claim 16 further adapted to synchronize between the first and second frequency hopping sequences.

28. The device of claim 16 wherein the at least one time period comprises a first set of time periods and the at least one other time period comprises a second set of time periods.

29. The device of claim 16 wherein each time period of the first set is followed by a time period of the second set.

31. The device of claim 16 further adapted to relay information between a device of the first group and a device of the second group.

32. A computer readable medium having code embodied therein for causing an electronic device to perform the stages of:

(a) allowing a first group of ultra wide band devices to exchange information using a first frequency hopping sequence; and

(b) allowing at least one certain device that is responsive to at least one transmission of information from a device of the first group to exchange information using the first frequency hopping sequence during at least one time period and allowing devices that belong to the second group to exchange information using a second frequency hopping sequence during at least one other time period.