SP/CBP SCHEDULE INFORMATION DISTRIBUTION

• US 20120315943A1
• Filed: 06/07/2011
• Published: 12/13/2012
• Est. Priority Date: 06/07/2011
• Status: Abandoned Application

• Current Assignee: STMicroelectronics Incorporated (STMicroelectronics NV)
• Original Assignee: STMicroelectronics Incorporated (STMicroelectronics NV)
• Inventors: Chu, Liwen, Vlantis, George A.
• Application Number:
  US13/154,972
• Publication Number:
  US 20120315943A1
• Time in Patent Office: Days
• US Class Current: 455/512
• CPC Class Codes: H04W 74/0866 using a dedicated channel for access

Abstract

The distribution of the service period (SP) and contention-based period (CBP) scheduling information in the data transfer time (DTT) of a beacon interval (BI) defined under the WGA Draft Specification 0.8 is selectively scheduled to optimize channel access contention. STAs in a single antenna scope or groups of STAs in multiple antennas scopes is allocated to different CBPs to decrease collisions. Simultaneous CBPs is further allocated to STAs in multiple antennas scopes where STAs have peer-to-peer traffic with other STAs in the same antenna group during part of the CBP when the personal PCP/AP is unavailable to that antenna group resulting in an increase in network throughput.

Claims

1. A method of scheduling communications in a personal basic service set (PBSS) or an infrastructure BSS, comprising:

allocating a first time period in which stations in a first group of stations can compete for channel access; and

allocating a second time period in which stations in a second group of stations can compete for channel access, wherein

the composition of the first group of stations is different from the composition of second group of stations.

2. The method of scheduling communications of claim 1, wherein the PBSS or the infrastructure BSS comprises a mmWave network.

3. The method of scheduling communications of claim 1, wherein the first and second time periods are contention-based periods (CBPs) or truncatable service periods (SPs).

4. The method of scheduling communications of claim 1, wherein the first group of stations comprises at least two stations.

5. The method of scheduling communications of claim 1, wherein the second group of stations comprises at least two stations.

6. The method of scheduling communications of claim 1, further comprising allocating one or more time periods in which stations in one or more groups of stations can compete for channel access, wherein the composition of the groups of stations are different from the composition of the first and second groups of stations and each other groups of stations.

7. A method of scheduling communications in a personal basic service set (PBSS) or an infrastructure BSS, comprising:

allocating a first time period in which stations in a first group of stations connected to a first antenna of a PBSS control point and/or access point (PCP/AP) can compete for channel access; and

allocating a second time period in which stations in a second group of stations connected to a second antenna of the PCP/AP can compete for channel access.

8. The method of scheduling communications of claim 7, wherein the PBSS or the infrastructure BSS comprises a mmWave network.

9. The method of scheduling communications of claim 7, wherein the composition of the first group of stations is different from the composition of the second group of stations.

10. The method of scheduling communications of claim 7, wherein the scope of coverage of the first antenna is distinct from the scope of coverage of the second antenna.

11. The method of scheduling communications of claim 7, wherein stations in the first group connects to the PCP/AP only through the first antenna and stations in the second group connects to the PCP/AP only through the second antenna.

12. The method of scheduling communications of claim 7, wherein the first and second time periods are contention-based periods (CBPs) or truncatable service periods (SPs).

13. The method of scheduling communications of claim 7, further comprising allocating one or more time periods in which stations in one or more groups of stations connected to one or more respective antennas of the PCP/AP can compete for channel access.

14. A method of scheduling communications in a personal basic service set (PBSS) or an infrastructure BSS, comprising:

allocating a first time period in which stations in a first and second group of stations can compete for channel access; and

allocating a second time period in which stations in the first and second group of stations can compete for channel access, wherein

a PBSS control point and/or access point (PCP/AP) servicing stations in the first group through a first antenna is available to stations in the first group only during the first time period; and

wherein

the PCP/AP servicing stations in the second group through a second antenna is available to stations in the second group only during the second time period.

15. The method of scheduling communications of claim 14, wherein the PBSS or the infrastructure BSS comprises a mmWave network.

16. The method of scheduling communications of claim 14, further comprising allocating a third time period in which stations in the first and second group of stations can compete for channel access;

wherein the PCP/AP is not available to either the first or second groups.

17. The method of scheduling communications of claim 14, wherein the composition of the first group of stations is different from the composition of the second group of stations.

18. The method of scheduling communications of claim 14, wherein the scope of coverage of the first antenna is distinct from the scope of coverage of the second antenna.

19. The method of scheduling communications of claim 14, wherein stations in the first group connects to the PCP/AP only through the first antenna and the stations in the second group connects to the PCP/AP only through the second antenna.

20. The method of scheduling communications of claim 14, wherein a first station in the first group have peer-to-peer traffic with a second station in the first group.

21. The method of scheduling communications of claim 14, wherein a first station in the second group have peer-to-peer traffic with a second station in the second group.

22. The method of scheduling communications of claim 14, wherein the first and second time periods make up a contention-based period (CBP) or truncatable service periods (SPs).

23. The method of scheduling communications of claim 14, further comprising allocating one or more time periods in which stations in the first, the second, and one or more groups of stations can compete for channel access, wherein the PCP servicing stations in each of the groups of stations through a respective antenna is available to stations in the respective group only during a respective time period of the one or more time periods.

24. A method of scheduling communications in a personal base service set (PBSS) or an infrastructure BSS comprising sending a non-trucatable service period (SP) scheduling information only to the SP'"'"'s assigned source and destination.