MEDIUM ALLOCATION IN A DISTRIBUTED NETWORK

• US 20110075603A1
• Filed: 09/30/2009
• Published: 03/31/2011
• Est. Priority Date: 09/30/2009
• Status: Abandoned Application

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: MUQATTASH, ALAA
• Application Number:
  US12/571,235
• Publication Number:
  US 20110075603A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00

Abstract

A method of network operations comprises conducting communication activities at a first network device using a shared network medium and having a first coverage area, wherein the communication activities comprise broadcasting a data transmission reservation or receiving a data transmission reservation of another network device during a beacon period; and conducting communications with the first network device at a second network device using the shared network medium; wherein the second network device is configured to provide a second coverage area that is substantially contained within the first coverage area and wherein the second network device does not monitor network communications during the beacon period.

Claims

1. A method of network operations, comprising:

conducting communication activities at a first network device using a shared network medium and having a first coverage area, wherein the communication activities comprise broadcasting a data transmission reservation or receiving a data transmission reservation of another network device during a beacon period; and

conducting communications with the first network device at a second network device using the shared network medium;

wherein the second network device is configured to provide a second coverage area that is substantially contained within the first coverage area and wherein the second network device does not monitor network communications during the beacon period.

2. The method of claim 2, wherein the second network device is further configured such that the second network device does not broadcast during the beacon period.

5. The method of claim 2, wherein the communication activities occur during superframes that are partitioned into timeslots, wherein a superframe comprises a beacon period comprising a first portion of timeslots and wherein the superframe comprises a data transfer period comprising a second portion of timeslots.

3. The method of claim 3, wherein the second network device is configured to transmit at a lower power level than the first network device such that the second coverage area is contained within the first coverage area.

4. The method of claim 3, wherein the second network device is further configured to exchange data transmission reservation information with the first network device during a data transmission period.

6. A network device configured to conduct communication activities with other network devices on a shared medium, comprising:

a computer readable medium having computer executable program code embodied thereon, wherein the computer executable program code is configured to cause the network device to perform the step of;

communicating with a beaconing network device in a non-beaconing mode, comprising;

establishing a communications link with the beaconing network device; and

not processing communications received from other network devices when those communications are received during a beacon period.

7. The network device of claim 6, wherein the step of communicating in a non-beaconing mode further comprises not broadcasting during the beacon period.

8. The network device of claim 7, wherein the step of communicating a non-beaconing mode further comprising transmitting at a power level configured to provide a first coverage area that is substantially within a second coverage area of the beaconing network device.

9. The network device of claim 8, wherein the computer executable program code is further configured to cause the network device to perform the step of communicating with a beaconing network device in a beaconing mode, comprising:

receiving and processing external reservation requests of another network device during the beacon period and transmitting a reservation request for communications with the beaconing network device.

10. The network device of claim 9, wherein the computer executable program code is further configured to cause the network device to enter the non-beaconing mode if a request to enter the non-beaconing mode is received from the beaconing network device.

11. The network device of claim 9, wherein the computer executable program code is further configured to cause device to enter the non-beaconing mode according to input from a user of the network device.

12. The network device of claim 9, wherein the computer executable program code is further configured to cause the device to periodically enter the beaconing mode according to a predetermined period.

13. A network system, comprising:

a beaconing network device configured to conduct communication activities using a shared network medium and configured with a first coverage area, wherein the communication activities comprise broadcasting a data transmission reservation or receiving a data transmission reservation of another network device during a beacon period; and

a non-beaconing network device configured to communicate with the first network device without monitoring the beacon and further configured to have a second coverage area that is substantially contained within the first coverage area.

14. The network system of claim 13, wherein the second network device is further configured such that the second network device does not broadcast during the beacon period.

15. The network system of claim 14, wherein the second network device is configured to transmit at a lower power level than the first network device such that the second coverage area is contained within the first coverage area.

16. The network system of claim 15, wherein the first network device is configured to exchange data transmission reservation information with other network devices during the beacon period and wherein the second network device is further configured to exchange data transmission reservation information with the first network device during a data transmission period.

17. The network system of claim 14, wherein the second network device is further configured to enter a beaconing mode of operation wherein the second network device begins monitoring and broadcasting data transmission reservations on the beacon period.

18. The network system of claim 17, wherein the second network device is configured to enter the beaconing mode of operation according to input from a user of the second network device.

19. The network system of claim 17, wherein the second network devise is configured to periodically enter the beaconing mode of operation according to a predetermined period.

20. The network system of claim 17, wherein the second network device is configured to enter the beaconing mode of operation according to a request received from the first network device.