Technique to provide proprietary MIMO format in a product and ability to support a new standard when the new standard is developed

• US 20070076812A1
• Filed: 09/28/2006
• Published: 04/05/2007
• Est. Priority Date: 09/30/2005
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Trachewsky, Jason
• Application Number:
  US11/529,041
• Publication Number:
  US 20070076812A1
• Time in Patent Office: Days
• US Class Current: 375/267
• CPC Class Codes: H04L 27/0008 arrangements for allowing a transmitter or receiver to use more than one type of modulation negotiating modulation type for two-way transmission paths H04L5/1453
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 74/00 Wireless channel access
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A technique to provide proprietary MIMO format in a product and ability to support a new standard when the new standard is developed for wireless communication in a MIMO system. A product may include a “hook” to allow for the protection of existing proprietary MIMO mode of operation, once a new MIMO standard is made available to the industry. Once an access point device is upgraded to the new MIMO standard for communicating, the hook may be used to elicit a certain response from a given station to protect the proprietary MIMO mode for communicating with those stations not yet upgraded. In one technique, a proprietary information element in a beacon is used as the hook and RTS+CTS or CTS-to-self condition are used to inform the access point device to continue use of the proprietary MIMO mode.

Claims

1. A method comprising:

upgrading from a first multiple-input-multiple-output (MIMO) wireless communication format to a second MIMO wireless communication format in a device that communicates with multiple stations; and

transmitting a signal from the device to the multiple stations, in which the signal includes an identifier that the device is upgraded from the first MIMO format to the second MIMO format.

2. The method of claim 1 wherein upgrading includes upgrading from a non-standard MIMO wireless communication format to an industry standard MIMO wireless communication format.

3. The method of claim 1 wherein upgrading includes upgrading from a proprietary MIMO wireless communication format to an industry standard MIMO wireless communication format.

4. The method of claim 1 wherein upgrading includes upgrading from a proprietary MIMO wireless communication format to an industry standard 802.11n MIMO wireless communication format.

5. The method of claim 3 wherein transmitting includes transmitting a beacon signal from the device to the multiple stations, in which the beacon signal includes the identifier to inform the stations that the device is upgraded.

6. The method of claim 3 wherein transmitting includes transmitting a beacon signal from the device to the multiple stations, in which the beacon signal includes a proprietary identifier to inform one or more stations that are capable of decoding the proprietary identifier that the device is upgraded.

7. The method of claim 3 wherein transmitting includes transmitting a beacon signal from the device to the multiple stations, in which the beacon signal includes a proprietary information element associated with a manufacturer of the device in the identifier to inform one or more stations that are capable of decoding the proprietary information element that the device is upgraded.

8. A method comprising:

upgrading from a first multiple-input-multiple-output (MIMO) wireless communication format to a second MIMO wireless communication format in a device that communicates with multiple stations;

transmitting a first signal from a first device to a second device, in which the first signal includes an identifier that the first device is upgraded to the second MIMO format;

receiving a second signal from the second device that the second device is not upgraded to the second MIMO communication format and that the first device is to continue communicating with the second device using the first MIMO wireless communication format.

9. The method of claim 8 wherein upgrading includes upgrading from a non-standard MIMO wireless communication format to an industry standard MIMO wireless communication format.

10. The method of claim 8 wherein upgrading includes upgrading from a proprietary MIMO wireless communication format to an industry standard MIMO wireless communication format.

11. The method of claim 8 wherein upgrading includes upgrading from a proprietary MIMO wireless communication format to an industry standard 802.11n MIMO wireless communication format.

12. The method of claim 8 wherein transmitting the first signal includes transmitting a beacon signal from the first device to the second device, in which the beacon signal includes the identifier to inform the second device that the first device is upgraded.

13. The method of claim 8 wherein transmitting the first signal includes transmitting a beacon signal from the first device to the second device, in which the beacon signal includes a proprietary identifier to inform the second device that the first device is upgraded.

14. The method of claim 8 wherein transmitting the first signal includes transmitting a beacon signal from the first device to the second device, in which the beacon signal includes a proprietary information element associated with a manufacturer of the first device in the identifier to inform the second device that the first device is upgraded.

15. The method of claim 8 wherein receiving the second signal includes receiving a request-to-send signal as a coded signal in response to the first signal, the coded signal to indicate that the first and second devices are to utilize the first MIMO wireless communication format to communicate, since the second device is not upgraded to the second MIMO wireless communication format, and wherein the first device responds with a clear-to-send using the first MIMO wireless communication format signal.

16. The method of claim 8 wherein receiving the second signal includes receiving a clear-to-send signal, that indicates its own address of the second device, as a coded signal in response to the first signal, the coded signal to indicate that the first device is to utilize the first MIMO wireless communication format for subsequent data transmission from the second device, since the second device is not upgraded to the second MIMO wireless communication format.

17. A method comprising:

receiving a first signal that includes an identifier from a device, in which the identifier includes information that the device is upgraded from a first multiple-input-multiple-output (MIMO) wireless communication format to a second MIMO wireless communication format;

transmitting a second signal in reply to the first signal that the first MIMO wireless communication format is to be used in decoding data being transmitted following the second the signal; and

transmitting data to the device using the first MIMO wireless communication format.

18. The method of claim 17 wherein receiving the first signal includes receiving the identifier with information that the device is upgraded from a proprietary MIMO wireless communication format to an industry standard MIMO wireless communication format.

19. The method of claim 17 wherein receiving the first signal includes receiving the identifier with information that the device is upgraded from a proprietary MIMO wireless communication format to an industry standard 802.1 In MIMO wireless communication format.

20. The method of claim 18 wherein receiving the first signal includes receiving a beacon signal.

21. The method of claim 20 wherein receiving the beacon signal includes receiving a proprietary information element associated with a manufacturer of the device to inform recipients of the beacon signal capable of decoding the proprietary information element that the device is upgraded.

22. The method of claim 21 wherein transmitting the second signal includes transmitting a request-to-send signal as a coded signal in response to the first signal, the coded signal to indicate that the device is to utilize the first MIMO wireless communication format to communicate.

23. The method of claim 21 wherein transmitting the second signal includes transmitting a clear-to-send signal, that indicates its own address as sender, as a coded signal in response to the first signal, the coded signal to indicate that the device is to utilize the first MIMO wireless communication format for subsequent data transmission.